CN110921985A - Sewage treatment device and process for grease extraction workshop of dead animal carcasses - Google Patents
Sewage treatment device and process for grease extraction workshop of dead animal carcasses Download PDFInfo
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- CN110921985A CN110921985A CN201911233056.0A CN201911233056A CN110921985A CN 110921985 A CN110921985 A CN 110921985A CN 201911233056 A CN201911233056 A CN 201911233056A CN 110921985 A CN110921985 A CN 110921985A
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- aeration
- oil separation
- pipe
- oil
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- 239000010865 sewage Substances 0.000 title claims abstract description 112
- 239000004519 grease Substances 0.000 title claims abstract description 27
- 238000000605 extraction Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 24
- 239000010868 animal carcass Substances 0.000 title claims description 13
- 238000005273 aeration Methods 0.000 claims abstract description 224
- 238000000926 separation method Methods 0.000 claims abstract description 170
- 239000004576 sand Substances 0.000 claims abstract description 79
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 238000005276 aerator Methods 0.000 claims abstract description 42
- 230000001105 regulatory effect Effects 0.000 claims abstract description 37
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 22
- 241001465754 Metazoa Species 0.000 claims abstract description 14
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 6
- 231100000719 pollutant Toxicity 0.000 claims abstract description 6
- 239000000779 smoke Substances 0.000 claims abstract description 6
- 235000019198 oils Nutrition 0.000 claims description 292
- 239000007788 liquid Substances 0.000 claims description 182
- 238000005192 partition Methods 0.000 claims description 27
- 238000001914 filtration Methods 0.000 claims description 23
- 230000007306 turnover Effects 0.000 claims description 15
- 238000004140 cleaning Methods 0.000 claims description 7
- 230000000249 desinfective effect Effects 0.000 claims description 7
- 239000010802 sludge Substances 0.000 claims description 6
- 235000019476 oil-water mixture Nutrition 0.000 claims description 5
- 239000013043 chemical agent Substances 0.000 claims description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000000701 coagulant Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 3
- 230000001954 sterilising effect Effects 0.000 claims description 3
- 238000004659 sterilization and disinfection Methods 0.000 claims description 3
- 230000001580 bacterial effect Effects 0.000 claims 3
- 241000894007 species Species 0.000 claims 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims 1
- 229910052801 chlorine Inorganic materials 0.000 claims 1
- 239000000460 chlorine Substances 0.000 claims 1
- 230000000593 degrading effect Effects 0.000 claims 1
- 239000000645 desinfectant Substances 0.000 abstract description 8
- 238000010564 aerobic fermentation Methods 0.000 abstract description 3
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 230
- 239000000470 constituent Substances 0.000 description 11
- 230000003750 conditioning effect Effects 0.000 description 10
- 238000007670 refining Methods 0.000 description 10
- 235000019197 fats Nutrition 0.000 description 3
- 235000019737 Animal fat Nutrition 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 2
- 241000233866 Fungi Species 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/50—Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Activated Sludge Processes (AREA)
Abstract
The invention discloses a sewage treatment device and a process for a grease extraction workshop for dead animals, which comprises an oil separation tank, a first regulating tank, a second regulating tank, an aeration tank, an aerator, a sand filter and a chemical reagent adding tank, wherein the oil separation tank is connected with the first regulating tank; the sewage treatment device firstly collects the grease floating on the middle upper part of the sewage through the oil separation tank and then returns to an extraction workshop for extraction treatment, and simultaneously, an aeration pipe is added to fully aerate the grease contained in the sewage to the surface of the sewage; the two-stage regulating tank can store and place the sewage for about one month, so that the sewage is convenient to primarily settle, separate and regulate the water quality, disinfectant contained in the sewage can be volatilized and fermented automatically, and the disinfectant is prevented from killing active strains added in the subsequent process; active strains are added into the aeration tank, so that aerobic fermentation of the strains is facilitated, and degradation of oil smoke pollutants is realized; the sewage is filtered by the sand filter; and finally, adding a chemical reagent to sterilize and purify the sewage to reach the standard and discharge the sewage.
Description
The technical field is as follows:
the invention relates to the technical field of sewage treatment in oil refining of dead animal carcasses, in particular to a device and a process for treating sewage in a dead animal carcass oil extraction workshop.
Background art:
with the development of the industrial society, the demand of animal fat is increasing, the frying of the animal fat is a main project of industrial oil refining, and the frying of the fat of dead animal bodies for the industrial oil refining also becomes a large plate of the industrial oil refining; an authorized patent 201721231214.5 filed by the company discloses a fat extraction and treatment workshop for dead animal carcasses, which records the flow and the used equipment for the fat extraction and treatment of the dead animal carcasses in detail; the condensing box in the equipment for extracting and treating the grease of the dead animal bodies can condense the oil fume generated in the process of refining the grease of the dead animal bodies, liquefy the oil and the water vapor in the oil fume to facilitate subsequent treatment, and simultaneously generate cleaning and disinfecting sewage and other sewage after cleaning and disinfecting a workshop.
The invention content is as follows:
the invention aims to treat oil-water mixture generated in a workshop for extracting and treating grease from dead animal bodies and other sewage mainly including cleaning and disinfecting sewage to reach corresponding discharge standards, and provides a device and a process for treating sewage in the workshop for extracting and treating grease from dead animal bodies.
The invention adopts the following technical scheme to realize the purpose of the invention: a sewage treatment device for a grease extraction workshop for dead animal carcasses comprises an oil separation tank 1, a first regulating tank 2, a second regulating tank 3, an aeration tank 4, an aerator 5, a sand filter 6 and a chemical reagent adding tank 7; the oil separation tank 1, the first adjusting tank 2, the second adjusting tank 3, the aeration tank 4, the sand filter 6 and the chemical reagent adding tank 7 are sequentially connected; the aerator 5 is respectively connected with the oil separation tank 1 and the aeration tank 4.
The sewage treatment process of the oil extraction workshop for dead animal carcasses comprises the following steps: oil-water mixture generated by the condensing tank and other sewage mainly including cleaning and disinfecting sewage are introduced into the oil separation tank 1, and aeration is carried out on the oil separation tank 1 through an aerator 5; the sewage treated by the oil separation tank 1 sequentially enters a first regulating tank 2 and a second regulating tank 3, and is stored in the first regulating tank 2 and the second regulating tank 3 for about one month; introducing the sewage from the second adjusting tank 3 into an aeration tank 4, carrying out aeration treatment on the sewage in the aeration tank 4 through an aerator 5, and adding active strains into the aeration tank 4; the sewage after the aeration treatment is introduced into a sand filter 6 for filtration treatment; introducing the filtered sewage into a chemical reagent adding tank 7, and adding a chemical reagent into the chemical reagent adding tank 7 for sterilization and purification; the water from the chemical agent adding tank 7 can reach the corresponding standard and be discharged.
Furthermore, the active strains refer to dominant active strains which are obtained by domesticating the active sludge in the active sludge, mainly bacteria and fungi and can degrade oil smoke pollutants and prevent odor.
Further, the chemical reagent is polyaluminium chloride, chlorinated lime or a coagulant.
Further, the oil separation tank 1 comprises an oil separation tank body 11 and a plate turnover mechanism 12; the oil separation tank body 11 comprises a first oil separation zone 111, a second oil separation zone 112, a third oil separation zone 113, a fourth oil separation zone 114, a floating oil buffer zone 115, an oil separation zone partition plate 116, an oil separation tank liquid inlet pipe 117, an oil separation tank communicating pipe 118, an oil separation tank liquid outlet pipe 119, a first aerator connecting pipe 1110, a first aeration pipe 1111 and a bearing seat 1112; the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 are arranged side by side and are separated by an oil separating area partition plate 116 in the middle; the floating oil buffer area 115 is arranged at the rear sides of the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 and is separated from the middle of the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 by an oil separating area partition plate 116; the oil separation tank liquid inlet pipe 117 is arranged on the side wall of the first oil separation area 111; the oil separation tank communicating pipe 118 is arranged on an oil separation zone partition 116 between the first oil separation zone 111, the second oil separation zone 112, the third oil separation zone 113 and the fourth oil separation zone 114; the oil separation tank liquid outlet pipe 119 is arranged on the side wall of the fourth oil separation area 114; the first aeration pipes 1111 are uniformly distributed at the bottom of the fourth oil separation area 114; the first aerator connecting pipe 1110 is communicated with a first aerator pipe 1111, and aeration holes are distributed in the first aerator pipe 1111; the bearing seat 1112 is installed on the oil separating partition 116 and the upper side walls of the first oil separating area 111 and the fourth oil separating area 114; the plate turnover mechanism 12 is installed on the bearing seat 1112, and the plate turnover mechanism 12 can turn the floating oil at the upper parts of the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 into the floating oil buffer area 115.
Further, the floating oil collected by the plate turnover mechanism 12 in the floating oil buffer area 115 is transported to a refining plant for refining again.
Preferably, the liquid outlet end of the oil separation tank liquid inlet pipe 117 extends to the bottom of the first oil separation area 111; the liquid inlet end of the liquid outlet pipe 119 of the oil separation tank extends to the middle part of the fourth oil separation zone 114, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe 119 of the oil separation tank.
Preferably, the liquid inlet end of the oil separation tank communicating pipe 118 extends to the middle parts of the first oil separation area 111, the second oil separation area 112 and the third oil separation area 113; the liquid outlet end of the oil separation tank communicating pipe 118 extends to the bottoms of the second oil separation area 112, the third oil separation area 113 and the fourth oil separation area 114, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the oil separation tank communicating pipe 118.
Further, the flap mechanism 12 includes a rotating shaft 121, a roller 122 and a flap 123; one end of the rotating shaft 121 is connected with the roller 122, and the four turning plates 123 are sequentially arranged on the rotating shaft 121.
Further, a first adjusting tank liquid inlet pipe 21 and a first adjusting tank liquid outlet pipe 22 are arranged on the first adjusting tank 2; a second adjusting tank liquid inlet pipe 31 and a second adjusting tank liquid outlet pipe 32 are arranged on the second adjusting tank 3; the first conditioning tank liquid outlet pipe 22 is communicated with the first conditioning tank liquid inlet pipe 31.
Preferably, the liquid outlet end of the first adjusting tank liquid inlet pipe 21 extends to the bottom of the first adjusting tank 2; the liquid inlet end of the liquid outlet pipe 22 of the first adjusting tank extends to the middle part of the first adjusting tank 2, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe 22 of the first adjusting tank; the liquid outlet end of the liquid inlet pipe 31 of the second adjusting tank extends to the bottom of the second adjusting tank 3; the liquid inlet end of the liquid outlet pipe 32 of the second adjusting tank extends to the middle part of the second adjusting tank 3, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe 32 of the second adjusting tank.
Further, the aeration tank 4 comprises a first aeration zone 41, a second aeration zone 42, a third aeration zone 43, a fourth aeration zone 44, an aeration zone partition 45, a flow guide step 46, a water retaining edge 47, an aeration tank liquid inlet pipe 48, a second aerator connecting pipe 49, an aeration pipe connecting pipe 410, a second aeration pipe 411 and an aeration tank liquid outlet pipe 412; the first aeration zone 41, the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44 are arranged in a step shape from high to low, and the middle is separated by an aeration zone clapboard 45; a flow guiding step 46 is arranged at the top of the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44 close to the previous aeration zone; a water retaining edge 47 higher than the edges of the flow guiding ladder 46 and the partition board 45 of the aeration zone is arranged on the side wall of the aeration tank 4; the aeration tank liquid inlet pipe 48 is arranged on the side wall of the first aeration zone 41; the second aeration pipes 411 are uniformly arranged at the bottoms of the first aeration zone 41, the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44; the aeration pipe connecting pipe 410 is communicated with the second aeration pipe 411 and the second aerator connecting pipe 49; the aeration tank outlet pipe 412 is arranged on the side wall of the fourth aeration zone 44.
Preferably, the liquid outlet end of the aeration tank liquid inlet pipe 48 extends to the bottom of the first aeration zone 41; the liquid inlet end of the liquid outlet pipe 412 of the aeration tank extends to the middle part of the fourth aeration zone 44, and a plurality of liquid inlet holes are arranged on the pipe wall of the liquid inlet end of the liquid outlet pipe 412 of the aeration tank.
Preferably, aquatic plants may be planted on the upper plane of the guide steps 46.
Further, the active species are added to the first aeration zone 41.
Further, the sand filter 6 comprises a sand filter tank 61, a sand filter liquid inlet pipe 62, a water distributor 63, a sand filter layer 64, a water filtering plate 65, a sand filter liquid outlet pipe 66 and supporting legs 67; the sand filter liquid inlet pipe 62 and the sand filter liquid outlet pipe 66 are respectively arranged at the top and the bottom of the sand filter tank body 61; the water distributor 63 is arranged on the inner side of the top of the sand filter tank body 61 and is positioned at the bottom of the sand filter liquid inlet pipe 62; the water filtering plate 65 is arranged at the lower part of the inner side of the sand filter tank body 61; the sand filtering layer 64 is positioned on the top of the water filtering plate 65; the supporting feet 67 are mounted at the bottom of the sand filter tank 61.
By adopting the technical scheme, the invention better realizes the aim of the invention, and the sewage treatment device of the oil extraction workshop for the dead animal carcasses can treat oil-water mixtures generated in the oil extraction workshop for the dead animal carcasses and other sewage mainly comprising cleaning and disinfecting sewage to reach the corresponding discharge standard; firstly, collecting the grease floating on the middle upper part of the sewage through an oil separation tank and returning the grease to an extraction workshop for extraction treatment, and simultaneously adding an aeration pipe to fully aerate the grease contained in the sewage to the surface of the sewage; the two-stage regulating tank can store and place the sewage for about one month, so that the sewage is convenient to primarily settle, separate and regulate the water quality, disinfectant contained in the sewage can be volatilized and fermented automatically, and the disinfectant is prevented from killing active strains added in the subsequent process; active strains are added into the aeration tank, so that aerobic fermentation of the strains is facilitated, oil smoke pollutants are degraded, odor can be prevented, and meanwhile, the flow guide step is arranged, so that sewage can be conveniently guided to the next stage of aeration tank, aquatic plants can be planted on the flow guide step, and the attractiveness of the sewage treatment device is improved; the sewage is filtered by the sand filter; and finally, adding a chemical reagent to sterilize and purify the sewage to reach the discharge standard.
Description of the drawings:
FIG. 1 is a schematic diagram of the overall process flow of the present invention.
Fig. 2 is a schematic structural view of the marked oil interceptor 1 of the present invention.
FIG. 3 is a schematic top view and a schematic cross-sectional view of a marked oil interceptor body 11 of the present invention.
Fig. 4 is a schematic structural view of the label flipping mechanism 12 of the present invention.
FIG. 5 is a schematic view of a connection structure of the first regulation tank 2 and the second regulation tank 3 according to the present invention.
FIG. 6 is a schematic view showing the structure of the labeled aeration tank 4 of the present invention.
FIG. 7 is a schematic cross-sectional view of a labelled sand filter 6 according to the invention.
The reference numbers refer to the last page of the specification.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings:
example 1:
as can be seen from the invention content and the attached figure 1, the sewage treatment device for the grease extraction workshop of the dead animal carcasses comprises an oil separation tank 1, a first regulating tank 2, a second regulating tank 3, an aeration tank 4, an aerator 5, a sand filter 6 and a chemical reagent adding tank 7; the oil separation tank 1, the first adjusting tank 2, the second adjusting tank 3, the aeration tank 4, the sand filter 6 and the chemical reagent adding tank 7 are sequentially connected; the aerator 5 is respectively connected with the oil separation tank 1 and the aeration tank 4.
The sewage treatment process of the oil extraction workshop for dead animal carcasses comprises the following steps: oil-water mixture generated by the condensing tank and other sewage mainly including cleaning and disinfecting sewage are introduced into the oil separation tank 1, and aeration is carried out on the oil separation tank 1 through an aerator 5; the sewage treated by the oil separation tank 1 sequentially enters a first regulating tank 2 and a second regulating tank 3, and is stored in the first regulating tank 2 and the second regulating tank 3 for about one month; introducing the sewage from the second adjusting tank 3 into an aeration tank 4, carrying out aeration treatment on the sewage in the aeration tank 4 through an aerator 5, and adding active strains into the aeration tank 4; the sewage after the aeration treatment is introduced into a sand filter 6 for filtration treatment; introducing the filtered sewage into a chemical reagent adding tank 7, and adding a chemical reagent into the chemical reagent adding tank 7 for sterilization and purification; the water from the chemical agent adding tank 7 can reach the corresponding standard and be discharged.
Furthermore, the active strains refer to dominant active strains which are obtained by domesticating the active sludge in the active sludge, mainly bacteria and fungi and can degrade oil smoke pollutants and prevent odor.
Further, the chemical reagent is polyaluminium chloride, chlorinated lime or a coagulant.
As shown in fig. 2 and 3, the oil separation tank 1 includes an oil separation tank body 11 and a flap mechanism 12; the oil separation tank body 11 comprises a first oil separation zone 111, a second oil separation zone 112, a third oil separation zone 113, a fourth oil separation zone 114, a floating oil buffer zone 115, an oil separation zone partition plate 116, an oil separation tank liquid inlet pipe 117, an oil separation tank communicating pipe 118, an oil separation tank liquid outlet pipe 119, a first aerator connecting pipe 1110, a first aeration pipe 1111 and a bearing seat 1112; the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 are arranged side by side and are separated by an oil separating area partition plate 116 in the middle; the floating oil buffer area 115 is arranged at the rear sides of the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 and is separated from the middle of the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 by an oil separating area partition plate 116; the oil separation tank liquid inlet pipe 117 is arranged on the side wall of the first oil separation area 111; the oil separation tank communicating pipe 118 is arranged on an oil separation zone partition 116 between the first oil separation zone 111, the second oil separation zone 112, the third oil separation zone 113 and the fourth oil separation zone 114; the oil separation tank liquid outlet pipe 119 is arranged on the side wall of the fourth oil separation area 114; the first aeration pipes 1111 are uniformly distributed at the bottom of the fourth oil separation area 114; the first aerator connecting pipe 1110 is communicated with a first aerator pipe 1111, and aeration holes are distributed in the first aerator pipe 1111; the bearing seat 1112 is installed on the oil separating partition 116 and the upper side walls of the first oil separating area 111 and the fourth oil separating area 114; the plate turnover mechanism 12 is installed on the bearing seat 1112, and the plate turnover mechanism 12 can turn the floating oil at the upper parts of the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 into the floating oil buffer area 115.
Further, the floating oil collected by the plate turnover mechanism 12 in the floating oil buffer area 115 is transported to a refining plant for refining again.
As can be seen from fig. 3, the liquid outlet end of the oil separation tank liquid inlet pipe 117 extends to the bottom of the first oil separation zone 111; the liquid inlet end of the liquid outlet pipe 119 of the oil separation tank extends to the middle part of the fourth oil separation zone 114, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe 119 of the oil separation tank.
As can be seen from fig. 3, the liquid inlet end of the oil separation tank communicating tube 118 extends to the middle of the first oil separation area 111, the second oil separation area 112, and the third oil separation area 113; the liquid outlet end of the oil separation tank communicating pipe 118 extends to the bottoms of the second oil separation area 112, the third oil separation area 113 and the fourth oil separation area 114, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the oil separation tank communicating pipe 118.
As shown in fig. 4, the flap mechanism 12 includes a rotating shaft 121, a roller 122 and a flap 123; one end of the rotating shaft 121 is connected with the roller 122, and the four turning plates 123 are sequentially arranged on the rotating shaft 121; the rotation direction of the flap mechanism 12 is counterclockwise.
As can be seen from fig. 5, a first conditioning tank liquid inlet pipe 21 and a first conditioning tank liquid outlet pipe 22 are arranged on the first conditioning tank 2; a second adjusting tank liquid inlet pipe 31 and a second adjusting tank liquid outlet pipe 32 are arranged on the second adjusting tank 3; the first conditioning tank liquid outlet pipe 22 is communicated with the first conditioning tank liquid inlet pipe 31.
As can be seen from the attached figure 5, the liquid outlet end of the first adjusting tank liquid inlet pipe 21 extends to the bottom of the first adjusting tank 2; the liquid inlet end of the liquid outlet pipe 22 of the first adjusting tank extends to the middle part of the first adjusting tank 2, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe 22 of the first adjusting tank; the liquid outlet end of the liquid inlet pipe 31 of the second adjusting tank extends to the bottom of the second adjusting tank 3; the liquid inlet end of the liquid outlet pipe 32 of the second adjusting tank extends to the middle part of the second adjusting tank 3, and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe 32 of the second adjusting tank.
As shown in fig. 6, the aeration tank 4 includes a first aeration zone 41, a second aeration zone 42, a third aeration zone 43, a fourth aeration zone 44, an aeration zone partition 45, a flow guiding step 46, a water retaining edge 47, an aeration tank liquid inlet pipe 48, a second aerator connecting pipe 49, an aeration pipe connecting pipe 410, a second aeration pipe 411 and an aeration tank liquid outlet pipe 412; the first aeration zone 41, the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44 are arranged in a step shape from high to low, and the middle is separated by an aeration zone clapboard 45; a flow guiding step 46 is arranged at the top of the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44 close to the previous aeration zone; a water retaining edge 47 higher than the edges of the flow guiding ladder 46 and the partition board 45 of the aeration zone is arranged on the side wall of the aeration tank 4; the aeration tank liquid inlet pipe 48 is arranged on the side wall of the first aeration zone 41; the second aeration pipes 411 are uniformly arranged at the bottoms of the first aeration zone 41, the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44; the aeration pipe connecting pipe 410 is communicated with the second aeration pipe 411 and the second aerator connecting pipe 49; the aeration tank outlet pipe 412 is arranged on the side wall of the fourth aeration zone 44.
As shown in the attached figure 6, the liquid outlet end of the liquid inlet pipe 48 of the aeration tank extends to the bottom of the first aeration zone 41; the liquid inlet end of the liquid outlet pipe 412 of the aeration tank extends to the middle part of the fourth aeration zone 44, and a plurality of liquid inlet holes are arranged on the pipe wall of the liquid inlet end of the liquid outlet pipe 412 of the aeration tank.
Preferably, aquatic plants can be planted on the upper plane of the diversion step 46, and the aquatic plants can purify water and play a role in beauty.
Further, the active species are added to the first aeration zone 41.
As shown in fig. 7, the sand filter 6 includes a sand filter tank 61, a sand filter inlet pipe 62, a water distributor 63, a sand filter layer 64, a water filtering plate 65, a sand filter outlet pipe 66 and supporting legs 67; the sand filter liquid inlet pipe 62 and the sand filter liquid outlet pipe 66 are respectively arranged at the top and the bottom of the sand filter tank body 61; the water distributor 63 is arranged on the inner side of the top of the sand filter tank body 61 and is positioned at the bottom of the sand filter liquid inlet pipe 62; the water filtering plate 65 is arranged at the lower part of the inner side of the sand filter tank body 61; the sand filtering layer 64 is positioned on the top of the water filtering plate 65; the supporting feet 67 are mounted at the bottom of the sand filter tank 61.
The oil separation tank 1 of the invention is as follows: constituent parts of the sewage treatment apparatus; the device comprises an oil separation tank body 11 and a plate turnover mechanism 12; the function is to initially isolate and collect the grease contained in the sewage; the structure is shown in figure 2; the design position is shown as reference number 1 in figure 1.
The oil separation tank body 11 of the invention refers to: the constituent parts of the oil interceptor 1; the device comprises a first oil separation area 111, a second oil separation area 112, a third oil separation area 113, a fourth oil separation area 114, a floating oil buffer area 115, an oil separation area partition plate 116, an oil separation tank liquid inlet pipe 117, an oil separation tank communicating pipe 118, an oil separation tank liquid outlet pipe 119, a first aerator connecting pipe 1110, a first aerator pipe 1111 and a bearing seat 1112; the sewage treatment device has the functions of realizing the gradual oil separation of the sewage, facilitating the collection of upper-layer floating oil and fully aerating grease contained in the sewage; the structure is shown in figure 3; the design position is shown as 11 in fig. 2.
The first oil separating area 111 of the present invention refers to: the oil separation tank body 11; the function is to realize the gradual oil removal of sewage; the design position is shown as 111 in fig. 2.
The second oil separating region 112 of the present invention refers to: the oil separation tank body 11; the function is to realize the gradual oil removal of sewage; the design position is shown as 112 in fig. 2.
The third oil separating area 113 of the present invention refers to: the oil separation tank body 11; the function is to realize the gradual oil removal of sewage; the design position is shown as 113 in fig. 2.
The third oil separating area 114 of the present invention refers to: the oil separation tank body 11; the sewage treatment device has the functions of realizing the gradual oil removal of the sewage and fully aerating grease contained in the sewage; the design position is shown as 114 in fig. 2.
The floating oil buffer area 115 of the present invention refers to: the oil separation tank body 11; the function of the oil-water separation device is to store the oil separated by the plate turnover mechanism 12, which is convenient for the subsequent continuous refining; the design position is shown as 115 in fig. 2.
The oil separating partition 116 of the present invention refers to: the oil separation tank body 11; the function of the device is to separate a first oil separating area 111, a second oil separating area 112, a third oil separating area 113, a fourth oil separating area 114 and a floating oil buffer area 115; the design position is shown as reference 116 in fig. 2.
The oil separation tank liquid inlet pipe 117 of the invention refers to: the oil separation tank body 11; the function is as a sewage inlet pipe of the oil separation tank 1; the design position is shown as 117 in fig. 2.
The oil interceptor connecting pipe 118 of the present invention means: the oil separation tank body 11; the function of the device is to communicate two adjacent oil separation areas, so that the sewage in the middle of the previous oil separation area is conveniently drained to the next oil separation area; the design position is shown as 118 in fig. 2.
The oil separation tank liquid outlet pipe 119 of the invention refers to: the oil separation tank body 11; the sewage draining pipe is used as a sewage draining pipe of the oil separating tank 1, and the sewage in the middle of the fourth oil separating area 114 is conveniently drained to the first regulating tank 2; the design position is shown as 119 in fig. 2.
The first aerator connecting pipe 1110 according to the present invention is: the oil separation tank body 11; the function is to facilitate the connection of the aerator 5 and the first aeration pipe 1111; the design position is shown as 1110 in fig. 2.
The first aeration pipe 1111 of the present invention refers to: the oil separation tank body 11; the function of the aeration device is to facilitate the aeration of the sewage in the fourth oil separation area 114; the design position is shown as reference 1111 in fig. 2.
The bearing seat 1112 of the present invention is: the oil separation tank body 11; the function of the turnover mechanism is to facilitate the installation and the work of the turnover mechanism 12; the design position is shown as reference 1112 in fig. 2.
The plate turnover mechanism 12 of the invention refers to: the constituent parts of the oil interceptor 1; it comprises a rotating shaft 121, a roller 122 and a turning plate 123; the function is to turn the grease floating on the sewage water surface in the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 to the floating oil buffer area 115; the structure is shown in figure 4; the design position is shown as 12 in fig. 2.
The rotating shaft 121 of the present invention refers to: the constituent elements of the flap mechanism 12; the function is to drive the turning plate 123 to rotate anticlockwise; the design position is shown as 121 in fig. 4.
The roller 122 of the present invention refers to: the constituent elements of the flap mechanism 12; the function of the device is to facilitate the connecting chain or belt to drive the rotating shaft 121 to rotate anticlockwise; the design position is shown as 122 in fig. 4.
The turning plate 123 of the present invention refers to: the constituent elements of the flap mechanism 12; the function of the floating oil control device is that the oil floated on the sewage water surface in the first oil separating area 111, the second oil separating area 112, the third oil separating area 113 and the fourth oil separating area 114 is turned to the floating oil buffer area 115; the design position is shown as 123 in fig. 4.
The first regulating reservoir 2 of the invention refers to: constituent parts of the sewage treatment apparatus; a first regulating reservoir liquid inlet pipe 21 and a first regulating reservoir liquid outlet pipe 22 are arranged on the device; the device has the functions of facilitating preliminary sedimentation and separation of sewage, adjusting water quality, enabling disinfectant contained in the sewage to be volatilized and fermented automatically, and preventing the disinfectant from killing active strains added in subsequent procedures; the structure is shown in figure 5; the design position is shown as 2 in figure 1.
The first regulating reservoir liquid inlet pipe 21 of the invention refers to: the liquid inlet pipe is arranged on the first regulating tank 2; the function of the device is to be used as a liquid inlet pipe of the first adjusting tank 2; the design position is shown as 21 in fig. 5.
The first conditioning tank liquid outlet pipe 22 of the invention refers to: the liquid outlet pipe is arranged on the first regulating tank 2; the device has the functions of being used as a liquid outlet pipe of the first adjusting tank 2 and facilitating drainage of sewage in the middle of the first adjusting tank 2 to the second adjusting tank 3; the design position is shown as 22 in fig. 5.
The second regulating reservoir 3 of the invention refers to: constituent parts of the sewage treatment apparatus; a second regulating reservoir liquid inlet pipe 31 and a second regulating reservoir liquid outlet pipe 32 are arranged on the device; the device has the functions of facilitating preliminary sedimentation and separation of sewage, adjusting water quality, enabling disinfectant contained in the sewage to be volatilized and fermented automatically, and preventing the disinfectant from killing active strains added in subsequent procedures; the structure is shown in figure 5; the design position is shown as 3 in figure 1.
The second regulating reservoir liquid inlet pipe 31 of the invention refers to: the liquid inlet pipe is arranged on the second regulating tank 3; the function of the device is to be used as a liquid inlet pipe of the second adjusting tank 3; the design position is shown as 31 in fig. 5.
The liquid outlet pipe 32 of the second regulating tank of the invention refers to: the liquid outlet pipe is arranged on the second regulating tank 3; the sewage treatment device has the functions of being used as a liquid outlet pipe of the second adjusting tank 3 and facilitating the drainage of the sewage in the middle of the second adjusting tank 3 to the aeration tank 4; the design position is shown as 32 in fig. 5.
The aeration tank 4 of the invention is as follows: constituent parts of the sewage treatment apparatus; the device comprises a first aeration zone 41, a second aeration zone 42, a third aeration zone 43, a fourth aeration zone 44, an aeration zone partition plate 45, a flow guide step 46, a water retaining edge 47, an aeration tank liquid inlet pipe 48, a second aerator connecting pipe 49, an aeration pipe connecting pipe 410, a second aeration pipe 411 and an aeration tank liquid outlet pipe 412; the function is that it is convenient to add active strains, and the aerobic fermentation of the strains is convenient, so as to degrade oil smoke pollutants and prevent odor; the structure is shown in figure 6; the design position is shown as 4 in figure 1.
The first aeration zone 41 of the present invention refers to: the components of the aeration tank 4; the function is to realize the gradual aeration of the sewage and facilitate the addition of active strains; the design position is shown as 41 in fig. 6.
The second aeration zone 42 of the present invention refers to: the components of the aeration tank 4; the function is to realize the gradual aeration of the sewage; the design position is shown as 42 in fig. 6.
The third aeration zone 43 of the present invention refers to: the components of the aeration tank 4; the function is to realize the gradual aeration of the sewage; the design position is shown as 43 in fig. 6.
The fourth aeration zone 44 of the present invention refers to: the components of the aeration tank 4; the function is to realize the gradual aeration of the sewage; the design position is shown as 44 in fig. 6.
The aeration zone partition 45 of the present invention refers to: the components of the aeration tank 4; the function of the aeration zone is to separate the first aeration zone 41, the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44; the design position is shown as 45 in fig. 6.
The flow guide steps 46 of the present invention refer to: the components of the aeration tank 4; the sewage is drained from the previous stage aeration area to the next stage aeration area, and aquatic plants are conveniently planted to purify the sewage; the design position is shown as 46 in fig. 6.
The water retaining edge 47 of the invention refers to: the components of the aeration tank 4; the function of the device is to prevent sewage on both sides of the diversion step 46 from leaking; the design position is shown as 47 in fig. 6.
The liquid inlet pipe 48 of the aeration tank of the invention refers to: the components of the aeration tank 4; the function is as a liquid inlet pipe of the aeration tank 4; the design position is shown at 48 in figure 6.
The second aerator connecting pipe 49 according to the present invention is: the components of the aeration tank 4; the function is convenient for connecting the aerator 5; the design position is shown as 49 in fig. 6.
The aerator pipe connecting pipe 410 of the present invention is: the components of the aeration tank 4; the function of the connecting pipe is convenient for connecting the second aerator connecting pipe 49 and the second aerator pipe 411; the design position is shown as 410 in fig. 6.
The second aeration pipe 411 of the present invention is: the components of the aeration tank 4; the function of the aeration device is to aerate the first aeration zone 41, the second aeration zone 42, the third aeration zone 43 and the fourth aeration zone 44; the design position is shown as 411 in fig. 6.
The aeration tank liquid outlet pipe 412 of the invention refers to: the components of the aeration tank 4; the function of the aeration tank is as a liquid outlet pipe of the aeration tank 4 and is convenient for guiding the sewage in the middle of the fourth aeration zone 44 to the sand filter 6; the design position is shown as 412 in fig. 6.
The aerator 5 of the invention is: constituent parts of the sewage treatment apparatus; the function of the aeration device is to provide micro-bubbles for the aeration of the first aeration pipe 1111 and the second aeration pipe 411; the design position is shown as reference number 5 in fig. 1.
The sand filter 6 of the invention is characterized in that: constituent parts of the sewage treatment apparatus; the sand filter comprises a sand filter tank body 61, a sand filter liquid inlet pipe 62, a water distributor 63, a sand filter layer 64, a water filtering plate 65, a sand filter liquid outlet pipe 66 and supporting legs 67; the function is to filter the sewage; the structure is shown in figure 7; the design position is shown as reference number 6 in figure 1.
The sand filter tank 61 of the present invention is: the component parts of the sand filter 6; the function of the filter is as a carrier for filtering sewage by sand; the design position is shown as 61 in fig. 7.
The sand filter liquid inlet pipe 62 of the invention refers to: the component parts of the sand filter 6; the function of the device is as a liquid inlet pipe of the sand filter 6; the design position is shown as 62 in fig. 7.
The water distributor 63 of the present invention is: the component parts of the sand filter 6; the function is to prevent sewage from entering the sand filter tank 61 and directly scouring the sand filtering layer 64 and facilitate the sewage to enter the sand filtering layer 64 uniformly; the design position is shown as 63 in fig. 7.
The sand filtering layer 64 of the invention refers to: the component parts of the sand filter 6; the function of the filter is as a filter layer for filtering sewage; the design position is shown as 64 in fig. 7.
The water filter plate 65 of the present invention is: the component parts of the sand filter 6; the function of the filter is to facilitate the separation of the filtered water from the sand filtering layer 64; the design position is shown as reference number 65 in fig. 7.
The sand filter liquid outlet pipe 66 of the invention refers to: the component parts of the sand filter 6; the function of the device is as a liquid outlet pipe of the sand filter 6 and is convenient for connecting a chemical reagent adding pool 7; the design position is shown as 66 in fig. 7.
The supporting feet 67 described in the present invention are: the component parts of the sand filter 6; the function is to facilitate the stable placement of the sand filter 6 on the ground; the design position is shown as 67 in fig. 7.
The chemical reagent adding tank 7 of the invention refers to: the component parts of the sand filter 6; the function of the device is to facilitate adding chemical reagents into sewage; the design position is shown as reference number 7 in fig. 1.
It is also clear that, although the present invention has been described with reference to some specific examples, a person of skill in the art shall certainly be able to achieve many equivalent methods or constructions to those of sewage treatment plant, having the characteristics as set forth in the claims and hence all coming within the field of protection defined thereby.
| Number of mark | Name of label | Number of mark | Name of label |
| 1 | Oil separation tank 1 | 4 | Aeration tank 4 |
| 11 | Oil separation tank body 11 | 41 | First aeration zone 41 |
| 111 | First oil-separating region 111 | 42 | Second aeration zone 42 |
| 112 | Second oil-separating region 112 | 43 | Third aeration zone 43 |
| 113 | Third oil-separating region 113 | 44 | The fourth aeration zone 44 |
| 114 | Fourth oil-separating region 114 | 45 | Aeration zone partition 45 |
| 115 | Floating oil buffer 115 | 46 | Flow guiding step 46 |
| 116 | Oil separation zone partition 116 | 47 | Water stopping edge 47 |
| 117 | Oil separation tank liquid inlet pipe 117 | 48 | Aeration tank feed liquor pipe 48 |
| 118 | Oil interceptor connecting pipe 118 | 49 | Second aerator connecting pipe 49 |
| 119 | Oil separation tank outlet pipe 119 | 410 | Aeration pipe connecting pipe 410 |
| 1110 | First aerator connecting pipe 1110 | 411 | Second aeration pipe 411 |
| 1111 | First aeration pipe 1111 | 412 | Aeration tank outlet pipe 412 |
| 1112 | Bearing seat 1112 | 5 | Aeration machine 5 |
| 12 | Flap mechanism 12 | 6 | Sandstone filter 6 |
| 121 | Rotating shaft 121 | 61 | Sand filter tank 61 |
| 122 | Roller 122 | 62 | Sand filter inlet pipe 62 |
| 123 | Turning plate 123 | 63 | Water distributor 63 |
| 2 | First regulating reservoir 2 | 64 | Sand filtering layer 64 |
| 21 | First equalizing basin feed liquor pipe 21 | 65 | Water filtering plate 65 |
| 22 | First conditioning tank effluent pipe 22 | 66 | Sand filter outlet pipe 66 |
| 3 | Second regulating reservoir 3 | 67 | Supporting foot 67 |
| 31 | Second equalizing tank inlet pipe 31 | 7 | Chemical agent addition tank 7 |
| 32 | Second conditioning tank effluent pipe 32 |
Claims (10)
1. A sewage treatment process for a grease extraction workshop for dead animal carcasses is characterized in that an oil-water mixture generated by a condenser tank and other sewage mainly including cleaning and disinfecting sewage are introduced into an oil separation tank (1), and the inside of the oil separation tank (1) is aerated by an aerator (5); the sewage treated by the oil separation tank (1) sequentially enters a first regulating tank (2) and a second regulating tank (3) and is stored in the first regulating tank (2) and the second regulating tank (3) for about one month; introducing the sewage from the second adjusting tank (3) into an aeration tank (4), carrying out aeration treatment on the aeration tank (4) through an aerator (5), and adding active strains into the aeration tank (4); the sewage after the aeration treatment is introduced into a sand filter (6) for filtration treatment; introducing the filtered sewage into a chemical reagent adding tank (7), and adding a chemical reagent into the chemical reagent adding tank (7) for sterilization and purification; the water from the chemical agent adding pool (7) can reach the corresponding standard and be discharged.
2. The process as claimed in claim 1, wherein the said active bacterial species is a dominant bacterial species which is obtained by domesticating the active sludge in the active sludge and mainly used for degrading oil smoke pollutants and preventing odor; the chemical reagent is polyaluminium chloride, lime containing chlorine or a coagulant.
3. The sewage treatment process for the grease extraction workshop for the dead animal bodies according to claim 1, wherein the oil separation tank (1) comprises an oil separation tank body (11) and a plate turnover mechanism (12); the oil separation tank body (11) comprises a first oil separation area (111), a second oil separation area (112), a third oil separation area (113), a fourth oil separation area (114), a floating oil cache area (115), an oil separation area partition plate (116), an oil separation tank liquid inlet pipe (117), an oil separation tank communicating pipe (118), an oil separation tank liquid outlet pipe (119), a first aerator connecting pipe (1110), a first aeration pipe (1111) and a bearing seat (1112); the first oil separating area (111), the second oil separating area (112), the third oil separating area (113) and the fourth oil separating area (114) are arranged side by side and are separated by an oil separating area partition plate (116); the floating oil buffer area (115) is arranged at the rear sides of the first oil separating area (111), the second oil separating area (112), the third oil separating area (113) and the fourth oil separating area (114) and is separated from the middle of the first oil separating area (111), the second oil separating area (112), the third oil separating area (113) and the fourth oil separating area (114) through an oil separating area partition plate (116); the oil separation tank liquid inlet pipe (117) is arranged on the side wall of the first oil separation area (111); the oil separation tank communicating pipe (118) is arranged on an oil separation zone partition plate (116) among the first oil separation zone (111), the second oil separation zone (112), the third oil separation zone (113) and the fourth oil separation zone (114); the oil separation tank liquid outlet pipe (119) is arranged on the side wall of the fourth oil separation area (114); the first aeration pipes (1111) are uniformly distributed at the bottom of the fourth oil separation area (114); the first aerator connecting pipe (1110) is communicated with a first aerator pipe (1111), and aeration holes are distributed in the first aerator pipe (1111); the bearing seat (1112) is arranged on the oil separation area partition plate (116) and the upper parts of the side walls of the first oil separation area (111) and the fourth oil separation area (114); the plate turning mechanism (12) is installed on the bearing seat (1112), and floating oil on the upper portions of the first oil separating area (111), the second oil separating area (112), the third oil separating area (113) and the fourth oil separating area (114) can be turned into the floating oil buffer area (115) by the plate turning mechanism (12).
4. The sewage treatment process for the grease extraction workshop for the dead animal bodies as claimed in claim 3, wherein the liquid outlet end of the liquid inlet pipe (117) of the oil separation tank extends to the bottom of the first oil separation area (111); the liquid inlet end of the oil separation tank liquid outlet pipe (119) extends to the middle part of the fourth oil separation zone (114), and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the oil separation tank liquid outlet pipe (119); the liquid inlet end of the oil separation tank communicating pipe (118) extends to the middle parts of the first oil separation area (111), the second oil separation area (112) and the third oil separation area (113); the liquid outlet end of the oil separation tank communicating pipe (118) extends to the bottoms of the second oil separation area (112), the third oil separation area (113) and the fourth oil separation area (114), and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the oil separation tank communicating pipe (118).
5. The sewage treatment process for the grease extraction workshop for the dead animal bodies as claimed in claim 3, wherein the plate turnover mechanism (12) comprises a rotating shaft (121), a roller (122) and a turnover plate (123); one end of the rotating shaft (121) is connected with the roller (122), and the four turning plates (123) are sequentially arranged on the rotating shaft (121).
6. The sewage treatment process for the grease extraction workshop for the dead animal bodies as claimed in claim 1, wherein the first adjusting tank (2) is provided with a first adjusting tank liquid inlet pipe (21) and a first adjusting tank liquid outlet pipe (22); a second adjusting tank liquid inlet pipe (31) and a second adjusting tank liquid outlet pipe (32) are arranged on the second adjusting tank (3); the first adjusting tank liquid outlet pipe (22) is communicated with the first adjusting tank liquid inlet pipe (31); the liquid outlet end of the first adjusting tank liquid inlet pipe (21) extends to the bottom of the first adjusting tank (2); the liquid inlet end of the liquid outlet pipe (22) of the first adjusting tank extends to the middle part of the first adjusting tank (2), and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe (22) of the first adjusting tank; the liquid outlet end of the liquid inlet pipe (31) of the second adjusting tank extends to the bottom of the second adjusting tank (3); the liquid inlet end of the liquid outlet pipe (32) of the second adjusting tank extends to the middle part of the second adjusting tank (3), and a plurality of liquid inlet holes are uniformly formed in the pipe wall of the liquid inlet end of the liquid outlet pipe (32) of the second adjusting tank.
7. The sewage treatment process for the grease extraction workshop for the dead animal bodies as claimed in claim 1, wherein the aeration tank (4) comprises a first aeration zone (41), a second aeration zone (42), a third aeration zone (43), a fourth aeration zone (44), an aeration zone partition plate (45), a flow guiding step (46), a water retaining edge (47), an aeration tank liquid inlet pipe (48), a second aerator connecting pipe (49), an aeration pipe connecting pipe (410), a second aeration pipe (411) and an aeration tank liquid outlet pipe (412); the first aeration zone (41), the second aeration zone (42), the third aeration zone (43) and the fourth aeration zone (44) are arranged in a step shape from high to low, and the middle is separated by an aeration zone clapboard (45); a flow guiding step (46) is arranged at the top of the second aeration zone (42), the third aeration zone (43) and the fourth aeration zone (44) close to the previous aeration zone; a water retaining edge (47) higher than the edges of the flow guiding ladder (46) and the aeration zone partition plate (45) is arranged on the side wall of the aeration tank (4); the aeration tank liquid inlet pipe (48) is arranged on the side wall of the first aeration zone (41); the second aeration pipes (411) are uniformly arranged at the bottoms of the first aeration zone (41), the second aeration zone (42), the third aeration zone (43) and the fourth aeration zone (44); the aeration pipe connecting pipe (410) is communicated with the second aeration pipe (411) and the second aerator connecting pipe (49); the aeration tank liquid outlet pipe (412) is arranged on the side wall of the fourth aeration zone (44).
8. The sewage treatment process for the grease extraction plant of the dead animal bodies as claimed in claim 7, wherein the liquid outlet end of the liquid inlet pipe (48) of the aeration tank extends to the bottom of the first aeration zone (41); the liquid inlet end of the liquid outlet pipe (412) of the aeration tank extends to the middle part of the fourth aeration zone (44), and the pipe wall of the liquid inlet end of the liquid outlet pipe (412) of the aeration tank is provided with a plurality of liquid inlet holes; aquatic plants can be planted on the upper plane of the diversion ladder (46).
9. The process for treating sewage from a grease extraction plant for dead animals according to claim 7 or 8, wherein the active bacterial species are introduced into the first aeration zone (41).
10. The sewage treatment process for the grease extraction workshop for the dead bodies of the animals as claimed in claim 1, wherein the sand filter (6) comprises a sand filter tank body (61), a sand filter liquid inlet pipe (62), a water distributor (63), a sand filter layer (64), a water filter plate (65), a sand filter liquid outlet pipe (66) and supporting legs (67); the sand filter liquid inlet pipe (62) and the sand filter liquid outlet pipe (66) are respectively arranged at the top and the bottom of the sand filter tank body (61); the water distributor (63) is arranged on the inner side of the top of the sandstone filter tank body (61) and is positioned at the bottom of the sandstone filter liquid inlet pipe (62); the water filtering plate (65) is arranged at the lower part of the inner side of the sand filter tank body (61); the sand filtering layer (64) is arranged at the top of the water filtering plate (65); the supporting legs (67) are arranged at the bottom of the sand filter tank body (61).
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| CN201911233056.0A CN110921985A (en) | 2019-12-05 | 2019-12-05 | Sewage treatment device and process for grease extraction workshop of dead animal carcasses |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911233056.0A CN110921985A (en) | 2019-12-05 | 2019-12-05 | Sewage treatment device and process for grease extraction workshop of dead animal carcasses |
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| CN110921985A true CN110921985A (en) | 2020-03-27 |
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| CN201911233056.0A Pending CN110921985A (en) | 2019-12-05 | 2019-12-05 | Sewage treatment device and process for grease extraction workshop of dead animal carcasses |
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Application publication date: 20200327 |