CN111977909A - Leachate denitrification device for garbage transfer station and use method - Google Patents
Leachate denitrification device for garbage transfer station and use method Download PDFInfo
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- CN111977909A CN111977909A CN202010855642.5A CN202010855642A CN111977909A CN 111977909 A CN111977909 A CN 111977909A CN 202010855642 A CN202010855642 A CN 202010855642A CN 111977909 A CN111977909 A CN 111977909A
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- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000010802 sludge Substances 0.000 claims abstract description 56
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 238000005189 flocculation Methods 0.000 claims abstract description 29
- 230000016615 flocculation Effects 0.000 claims abstract description 29
- 230000020477 pH reduction Effects 0.000 claims abstract description 28
- 238000004062 sedimentation Methods 0.000 claims abstract description 28
- 230000007062 hydrolysis Effects 0.000 claims abstract description 25
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 25
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 18
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 238000000108 ultra-filtration Methods 0.000 claims abstract description 16
- 239000012528 membrane Substances 0.000 claims abstract description 14
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 14
- 239000000149 chemical water pollutant Substances 0.000 claims description 22
- 238000001914 filtration Methods 0.000 claims description 13
- 239000000126 substance Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 239000010865 sewage Substances 0.000 claims description 5
- 241000894006 Bacteria Species 0.000 claims description 4
- 229910001385 heavy metal Inorganic materials 0.000 claims description 4
- 230000003301 hydrolyzing effect Effects 0.000 claims description 3
- 230000015556 catabolic process Effects 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 238000006731 degradation reaction Methods 0.000 claims description 2
- 239000000645 desinfectant Substances 0.000 claims description 2
- 239000008394 flocculating agent Substances 0.000 claims description 2
- 229920002521 macromolecule Polymers 0.000 claims description 2
- 244000005700 microbiome Species 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 239000002957 persistent organic pollutant Substances 0.000 claims description 2
- 229920000642 polymer Polymers 0.000 claims description 2
- 238000001556 precipitation Methods 0.000 claims description 2
- 238000005086 pumping Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 2
- 229910052760 oxygen Inorganic materials 0.000 claims 2
- 239000001301 oxygen Substances 0.000 claims 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 239000002351 wastewater Substances 0.000 description 8
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003181 biological factor Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Classifications
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- 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
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- 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
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- 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
- C02F3/30—Aerobic and anaerobic processes
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)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention discloses a percolate denitrification device for a garbage transfer station and a use method thereof, and the percolate denitrification device comprises a primary filter tank, an adjusting tank and a flocculation sedimentation tank, wherein the primary filter tank is communicated with the adjusting tank, the adjusting tank is communicated with the flocculation sedimentation tank, the flocculation sedimentation tank is communicated with an ammonia stripping tank, the ammonia stripping tank is communicated with a hydrolysis acidification tank, the hydrolysis acidification tank is communicated with an aerobic tank, the aerobic tank is communicated with an ultrafiltration membrane filter tank, the ultrafiltration membrane filter tank is communicated with a disinfection tank, the disinfection tank is communicated with a clear water tank, the adjusting tank, the flocculation sedimentation tank, an anaerobic reaction tank and the hydrolysis acidification tank are communicated with a sludge separating pipe, a sludge pump is started to pump sludge in the adjusting tank, the flocculation sedimentation tank, the anaerobic reaction tank and the hydrolysis acidification tank, the sludge enters a sludge concentration tank through the sludge separating pipe and a main sludge pipe, sludge cakes are transported outside after sludge treatment by a filter press, the effluent quality of the refuse percolate treatment device is good, the quality of the effluent is stable.
Description
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a leachate denitrification device for a garbage transfer station.
Background
The landfill leachate is high-concentration organic wastewater which is formed by deducting saturated water holding capacity of garbage and a soil covering layer from water contained in the garbage in a landfill, rain, snow water entering the landfill and other water, and passing through the garbage layer and the soil covering layer, and the treatment of the landfill leachate in the urban landfill is always a very troublesome problem in the design, operation and management of the landfill. Leachate is the product of the gravity flow of liquids in landfills and is primarily derived from precipitation and the inherent moisture content of the refuse itself. The properties of the percolate vary over a considerable range, since many factors in the flow of the liquid may influence the properties of the percolate, including physical, chemical and biological factors. Generally, the pH value is between 4 and 9, the COD is in the range of 2000 to 62000mg/L, the BOD5 is from 60 to 45000mg/L, and the concentration of heavy metals is basically consistent with that of heavy metals in municipal sewage. The leachate of the municipal refuse landfill is high-concentration organic wastewater with complex components, and if the leachate is directly discharged into the environment without treatment, serious environmental pollution is caused. With the environmental protection as the purpose, it is indispensable to handle filtration liquid, and the quality of water of current landfill leachate processing apparatus play water is relatively poor, and quality of water is unstable.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a leachate denitrification device for a garbage transfer station, thereby overcoming the defects of the prior art.
In order to solve the technical problems, the invention adopts the following technical scheme: a leachate denitrification device for a garbage transfer station comprises a primary filter tank, an adjusting tank and a flocculation sedimentation tank, wherein the primary filter tank is communicated with the adjusting tank, the adjusting tank is communicated with the flocculation sedimentation tank, the flocculation sedimentation tank is communicated with ammonia stripping tank, the ammonia stripping tank is communicated with a hydrolysis acidification tank, the hydrolysis acidification tank is communicated with an aerobic tank, the aerobic tank is communicated with an ultrafiltration membrane filter tank, the ultrafiltration membrane filter tank is communicated with a disinfection tank, the disinfection tank is communicated with a clean water tank, the adjusting tank, the flocculation sedimentation tank, an anaerobic reaction tank and the hydrolysis acidification tank are communicated with a branch sludge pipe, the other end of the branch sludge pipe is communicated with a main sludge pipe, the main sludge pipe is communicated with a feed inlet of a sludge pump, a discharge outlet of the sludge pump is communicated with a sludge concentration tank, the sludge concentration tank is connected with a filter press, the upper end of one side of the primary filter tank is communicated with a water inlet pipe, the upper end of the, the feed inlet of the circulating pump is connected with a circulating pipe, the circulating pipe is arranged in the aerobic tank and the ultrafiltration membrane filtering tank and provided with a feed cover, and the discharge outlet of the circulating pump is communicated with the hydrolysis acidification tank through a return pipe.
Among foretell rubbish transfer station filtration liquid denitrification device, the upper end department in preliminary filter is equipped with the filter, and the equidistant through-hole that is equipped with on the filter, and the filter is the slope form.
In foretell rubbish transfer station filtration liquid denitrification facility, the inner wall of preliminary filter corresponds the filter and is equipped with the supporting shoe, and the supporting shoe is located the lower extreme department of filter.
In the leachate denitrification device for the garbage transfer station, the upper end and the lower end of the filter plate are provided with the lead screw supports, the lead screws are arranged in the lead screw supports, and the lead screws are arranged in parallel with the filter plate.
In the leachate denitrification device for the garbage transfer station, the screw rod is rotatably connected with the screw rod support, the screw rod is provided with the scraper, the scraper corresponds to the screw rod and is provided with a threaded hole, and the scraper is slidably connected with the filter plate.
In the leachate denitrification device for the garbage transfer station, the upper end of the screw rod is connected with the motor, and the motor is arranged on the motor support.
The invention has the beneficial effects that:
the garbage percolate is filtered by a primary filter tank and enters an adjusting tank, the water quality and the water quantity can be equalized, the impact on the denitrification device is reduced, suspended matters in wastewater can be removed by a flocculation sedimentation tank, the load of a subsequent device is reduced, the nitrogen blown off by an ammonia blowing-off tank is recycled as fertilizer, the wastewater enters an anaerobic reaction tank, a hydrolysis acidification tank and an aerobic tank for treatment, organic matters in the wastewater can be effectively removed, the nitrogen and the phosphorus can be simultaneously removed, the effluent of the aerobic tank enters an ultrafiltration membrane filtering tank for filtering, a sludge concentrated solution flows back to the hydrolysis acidification tank through a circulating pump, the sludge concentrated solution enters a disinfection tank for disinfection after being filtered by an ultrafiltration membrane, the disinfected water enters a clear water tank and is discharged from a water outlet pipe until reaching the standard, a sludge pump is started, the sludge in the adjusting tank, the flocculation sedimentation tank, the anaerobic reaction tank and the hydrolysis acidification tank is pumped out and enters a sludge concentration tank through a, after the sludge is treated by the filter press, the sludge cake is transported outside, the effluent quality of the refuse penetrating fluid denitrification treatment device is better, the water quality index can meet the discharge requirement, and the effluent quality is stable.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure of A of the present invention;
the invention is further described with reference to the following figures and detailed description.
Detailed Description
Example 1. As shown in figure 1, comprises a primary filter tank 1, an adjusting tank 2 and a flocculation sedimentation tank 3, wherein the primary filter tank 1 is communicated with the adjusting tank 2, the adjusting tank 2 is communicated with the flocculation sedimentation tank 3, the flocculation sedimentation tank 3 is communicated with an ammonia stripping tank 4, the ammonia stripping tank 4 is communicated with a hydrolysis acidification tank 6, the hydrolysis acidification tank 6 is communicated with an aerobic tank 7, the aerobic tank 7 is communicated with an ultrafiltration membrane filter tank 8, the ultrafiltration membrane filter tank 8 is communicated with a disinfection tank 9, the disinfection tank 9 is communicated with a clear water tank 10, the adjusting tank 2, the flocculation sedimentation tank 3, an anaerobic reaction tank 5 and the hydrolysis acidification tank 6 are communicated with a sub-sludge pipe 18, the other end of the sub-sludge pipe 18 is communicated with a main sludge pipe 17, the main sludge pipe 17 is communicated with a feed inlet of a sludge pump 11, a discharge outlet of the sludge pump 11 is communicated with a sludge concentration tank 12, the sludge concentration tank 12 is connected with a filter press 13, one side upper end of, the upper end of the ammonia stripping tank 4 is communicated with an ammonia recovery pipe 16, a circulating pump 19 is arranged in the aerobic tank 7, a feeding port of the circulating pump 19 is connected with a circulating pipe 20, the circulating pipe 20 is positioned in the aerobic tank 7 and the ultrafiltration membrane filtering tank 8, a feeding cover 21 is arranged at the inner part of the circulating pipe 20, and a discharging port of the circulating pump 19 is communicated with the hydrolysis acidification tank 6 through a return pipe 22.
As shown in fig. 2, the upper end department in preliminary filter 1 is equipped with filter 23, and the equidistant through-hole that is equipped with on filter 23, and filter 23 is the slope form, the inner wall in preliminary filter 1 corresponds filter 23 and is equipped with supporting shoe 24, and supporting shoe 24 is located the lower extreme department of filter 23, lead screw support 25 is installed to the upper and lower both ends department of filter 23, installs lead screw 26 in the lead screw support 25, lead screw 26 and filter 23 parallel arrangement, and lead screw 26 rotates and connects lead screw support 25, installs scraper blade 27 on the lead screw 26, and scraper blade 27 corresponds lead screw 26 and has seted up the screw hole, scraper blade 27 sliding connection filter 23, motor 28 is connected to the upper end of lead screw 26, and motor 28 installs on motor support.
The use method of the leachate denitrification device of the refuse transfer station comprises the following steps:
1) leachate generated by the garbage transfer station enters a primary filter tank 1 for filtering, suspended matters are filtered by a filter plate 23, and then the leachate enters an adjusting tank 2 for adjusting water quantity and balancing water quality;
2) the garbage leachate enters a flocculation sedimentation tank 3, and a flocculating agent is added into the flocculation sedimentation tank 3 for reaction, so that heavy metal substances in the garbage leachate are removed;
3) the landfill leachate after the reaction in the flocculation sedimentation tank 3 enters an ammonia stripping tank 4, and ammonia is recycled;
4) the landfill leachate enters an anaerobic reaction tank 5, and organic substances in the sewage are purified by the degradation of anaerobic microorganisms under the anaerobic condition;
5) the landfill leachate enters a hydrolysis acidification tank 6, insoluble organic matters in water are hydrolyzed into soluble organic matters by using hydrolytic bacteria and acidification bacteria, and macromolecular substances which are difficult to biodegrade are converted into micromolecular substances which are easy to biodegrade;
6) the landfill leachate enters an aerobic tank 7, is mixed with activated sludge and is stirred and aerated, so that organic pollutants in the landfill leachate are decomposed;
7) the landfill leachate enters an ultrafiltration filter 8, and polymer colloid and suspended particles with certain sizes in the landfill leachate are separated from the solution;
8) the landfill leachate enters a disinfection tank 9, and the landfill leachate is disinfected by using a disinfectant;
9) the sterilized water enters the clean water tank 10 and is discharged from the water outlet pipe 15;
10) starting a sludge pump 11, pumping out sludge precipitated in the regulating tank 2, the flocculation sedimentation tank 3, the anaerobic reaction tank 5 and the hydrolysis acidification tank 6, entering a sludge concentration tank 12, and entering a filter press 13 for treatment;
11) the motor 28 rotates forward and backward to drive the scraper 27 to reciprocate up and down along the filter plate 23, so as to clean the upper surface of the scraper 27 and prevent the filter plate 23 from being blocked.
The working principle is as follows: the garbage percolate is filtered by a primary filter 1 and enters an adjusting tank 2, the water quality and the water quantity can be equalized, the impact on the denitrification device is reduced, suspended matters in wastewater can be removed by a flocculation sedimentation tank 3, the load of a subsequent device is reduced, nitrogen blown off by an ammonia blowing-off tank 4 is recycled and used as fertilizer, the wastewater enters an anaerobic reaction tank 5, a hydrolysis acidification tank 6 and an aerobic tank 7 for treatment, organic matters in the wastewater can be effectively removed, the nitrogen and the phosphorus can be simultaneously removed, the effluent of the aerobic tank 7 enters an ultrafiltration membrane filtering tank 8 for filtering, sludge concentrated solution flows back to the hydrolysis acidification tank 6 through a circulating pump 19 and enters a disinfection tank 9 for disinfection after being filtered by an ultrafiltration membrane, the disinfected water enters a clear water tank 10 and can be discharged from a water outlet pipe 15 until reaching the standard, a sludge pump 11 is started, and sludge in the adjusting tank 2, the flocculation sedimentation tank 3, the anaerobic reaction tank 5 and the hydrolysis acidification tank 6, the sewage enters a sludge concentration tank 12 through a separated sludge pipe 18 and a main sludge pipe 17, and sludge is treated by a filter press 13, and then sludge cakes are transported outside.
The embodiments of the present invention are not limited to the above-described examples, and various changes made without departing from the spirit of the present invention are within the scope of the present invention.
Claims (7)
1. The utility model provides a rubbish transfer station filtration liquid denitrification device, includes primary filter (1), equalizing basin (2) and flocculation and precipitation pond (3), its characterized in that: the primary filter tank (1) is communicated with an adjusting tank (2), the adjusting tank (2) is communicated with a flocculation sedimentation tank (3), the flocculation sedimentation tank (3) is communicated with an ammonia stripping tank (4), the ammonia stripping tank (4) is communicated with a hydrolysis acidification tank (6), the hydrolysis acidification tank (6) is communicated with an aerobic tank (7), the aerobic tank (7) is communicated with an ultrafiltration membrane filter tank (8), the ultrafiltration membrane filter tank (8) is communicated with a disinfection tank (9), the disinfection tank (9) is communicated with a clear water tank (10), the adjusting tank (2), the flocculation sedimentation tank (3), an anaerobic reaction tank (5) and the hydrolysis acidification tank (6) are communicated with a sludge separating pipe (18), the other end of the sludge separating pipe (18) is communicated with a main sludge pipe (17), the main sludge pipe (17) is communicated with a feed inlet of a sludge pump (11), a discharge outlet of the sludge pump (11) is communicated with a sludge concentration tank (12), and the sludge concentration tank (12), one side upper end intercommunication inlet tube (14) of preliminary filter (1), one side upper end intercommunication outlet pipe (15) of clean water pond (10), the upper end intercommunication ammonia recovery pipe (16) of pond (4) are blown off to the ammonia, be equipped with circulating pump (19) in good oxygen pond (7), the feed inlet department connecting cycle pipe (20) of circulating pump (19), inside department that circulating pipe (20) are located good oxygen pond (7) and milipore filter filtering ponds (8) installs feeding cover (21), the discharge outlet department of circulating pump (19) passes through back flow (22) intercommunication hydrolytic acidification pond (6).
2. The leachate denitrification apparatus of the refuse transfer station of claim 1, wherein: the upper end department of preliminary filter (1) is equipped with filter (23), and equidistant being equipped with the through-hole on filter (23), and filter (23) are the slope form.
3. The leachate denitrification apparatus of the refuse transfer station of claim 2, wherein: the inner wall of the primary filter tank (1) is provided with a supporting block (24) corresponding to the filter plate (23), and the supporting block (24) is positioned at the lower end of the filter plate (23).
4. The leachate denitrification apparatus of the refuse transfer station of claim 3, wherein: screw rod support (25) are installed to the upper and lower both ends department of filter (23), install lead screw (26) in screw rod support (25), lead screw (26) and filter (23) parallel arrangement.
5. The leachate denitrification apparatus of the refuse transfer station of claim 4, wherein: the screw rod (26) is rotatably connected with the screw rod support (25), the screw rod (26) is provided with a scraper (27), the scraper (27) is provided with a threaded hole corresponding to the screw rod (26), and the scraper (27) is slidably connected with the filter plate (23).
6. The leachate denitrification apparatus of the refuse transfer station of claim 5, wherein: the upper end of the screw rod (26) is connected with a motor (28), and the motor (28) is installed on a motor bracket (29).
7. The use method of the leachate denitrification device of the refuse transfer station as claimed in claim 1, comprising the following steps:
1) leachate generated by the garbage transfer station enters a primary filter tank (1) for filtering, suspended matters are filtered by a filter plate (23), and then the leachate enters an adjusting tank (2) for adjusting water quantity and balancing water quality;
2) the landfill leachate enters a flocculation sedimentation tank (3), and a flocculating agent is added into the flocculation sedimentation tank (3) for reaction, so that heavy metal substances in the landfill leachate are removed;
3) the landfill leachate reacted by the flocculation sedimentation tank (3) enters an ammonia stripping tank (4) to recycle ammonia;
4) the landfill leachate enters an anaerobic reaction tank (5), and organic substances in the sewage are purified by the degradation of anaerobic microorganisms under the anaerobic condition;
5) the landfill leachate enters a hydrolysis acidification tank (6), insoluble organic matters in water are hydrolyzed into soluble organic matters by using hydrolytic bacteria and acidification bacteria, and macromolecular substances which are difficult to biodegrade are converted into micromolecular substances which are easy to biodegrade;
6) the landfill leachate enters an aerobic tank (7), is mixed with activated sludge and is stirred and aerated, so that organic pollutants in the landfill leachate are decomposed;
7) the landfill leachate enters an ultrafiltration filter tank (8) to separate polymer colloids and suspended particles with certain sizes in the landfill leachate from the solution;
8) the landfill leachate enters a disinfection tank (9) and is disinfected by a disinfectant;
9) the sterilized water enters the clean water tank (10) and is discharged from the water outlet pipe (15);
10) starting a sludge pump (11), pumping out sludge precipitated in the regulating tank (2), the flocculation sedimentation tank (3), the anaerobic reaction tank (5) and the hydrolysis acidification tank (6), entering a sludge concentration tank (12), and entering a filter press (13) for treatment;
11) the motor (28) rotates forwards and reversely to drive the scraper (27) to reciprocate up and down along the filter plate (23) to clean the upper surface of the scraper (27) and prevent the filter plate (23) from being blocked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010855642.5A CN111977909A (en) | 2020-08-22 | 2020-08-22 | Leachate denitrification device for garbage transfer station and use method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010855642.5A CN111977909A (en) | 2020-08-22 | 2020-08-22 | Leachate denitrification device for garbage transfer station and use method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115124193A (en) * | 2022-06-30 | 2022-09-30 | 湖南壹品环境科技有限公司 | Landfill leachate concentrated solution treatment equipment and method |
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| KR20060100698A (en) * | 2005-03-17 | 2006-09-21 | 김진식 | Food Waste Leachate Treatment Method |
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| CN110015822A (en) * | 2019-05-27 | 2019-07-16 | 深圳市盘古环保科技有限公司 | A kind of landfill leachate capacitive deionization desalination purifying treatment method and device |
| CN210855561U (en) * | 2019-08-13 | 2020-06-26 | 四川善水科技有限公司 | Distributed simple sewage treatment system in rural area |
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2020
- 2020-08-22 CN CN202010855642.5A patent/CN111977909A/en active Pending
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|---|---|---|---|---|
| KR20060100698A (en) * | 2005-03-17 | 2006-09-21 | 김진식 | Food Waste Leachate Treatment Method |
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