CN209493456U - Wastewater from rice flour plants advanced treatment system - Google Patents
Wastewater from rice flour plants advanced treatment system Download PDFInfo
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- CN209493456U CN209493456U CN201920148969.1U CN201920148969U CN209493456U CN 209493456 U CN209493456 U CN 209493456U CN 201920148969 U CN201920148969 U CN 201920148969U CN 209493456 U CN209493456 U CN 209493456U
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- rice flour
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- 239000002351 wastewater Substances 0.000 title claims abstract description 54
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 29
- 235000009566 rice Nutrition 0.000 title claims abstract description 29
- 235000013312 flour Nutrition 0.000 title claims abstract description 18
- 241000196324 Embryophyta Species 0.000 title claims abstract description 17
- 240000007594 Oryza sativa Species 0.000 title abstract 2
- 238000006243 chemical reaction Methods 0.000 claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 35
- 239000010802 sludge Substances 0.000 claims abstract description 30
- 238000004062 sedimentation Methods 0.000 claims abstract description 26
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims abstract description 22
- 238000001556 precipitation Methods 0.000 claims abstract description 20
- 230000001112 coagulating effect Effects 0.000 claims abstract description 14
- 239000012528 membrane Substances 0.000 claims abstract description 12
- 239000013049 sediment Substances 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 11
- 238000012856 packing Methods 0.000 claims abstract description 11
- 238000005273 aeration Methods 0.000 claims abstract description 9
- 238000010992 reflux Methods 0.000 claims abstract description 5
- 241000209094 Oryza Species 0.000 claims description 27
- 239000007788 liquid Substances 0.000 claims description 15
- 235000020265 peanut milk Nutrition 0.000 claims description 10
- 238000000605 extraction Methods 0.000 claims description 9
- 239000000706 filtrate Substances 0.000 claims description 9
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000006386 neutralization reaction Methods 0.000 claims description 8
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 239000006228 supernatant Substances 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 206010054949 Metaplasia Diseases 0.000 claims 1
- 230000015689 metaplastic ossification Effects 0.000 claims 1
- 239000010865 sewage Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 10
- 238000005842 biochemical reaction Methods 0.000 abstract description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 3
- 239000000126 substance Substances 0.000 abstract description 3
- 238000005728 strengthening Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 10
- 238000000926 separation method Methods 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 239000002699 waste material Substances 0.000 description 5
- 238000004065 wastewater treatment Methods 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000001376 precipitating effect Effects 0.000 description 4
- 238000002203 pretreatment Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000004064 recycling Methods 0.000 description 4
- 241000894006 Bacteria Species 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000000247 postprecipitation Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The utility model discloses a kind of wastewater from rice flour plants advanced treatment systems, including sequentially connected primary sedimentation tank, the pond UASB, enhanced biological membrane cisterna, coagulative precipitation tank and clear water reserviors, strengthening membrane biomembrane pond includes mutually separated reaction tank and medium sediment pool, biologic packing material is provided in reaction tank, the bottom of reaction tank is provided with aeration tube, bottom is provided with the mud return line being connected in reaction tank in medium sediment pool, sludge reflux pump is provided on mud return line, by the pond UASB as the organic substance in anaerobic technique removal waste water, select contact-oxidation pool as the ammonia nitrogen in aerobic tank removal waste water, and the sludge in subsequent medium sediment pool is back in reaction tank in time by mud return line, so that the sludge in reaction tank is able to maintain higher concentration, reach subsequent sedimentation it is good while, ensure sludge in reaction tank Concentration so that the biochemical reaction efficiency in reaction tank further increases.
Description
Technical field
The utility model relates to field of waste water treatment, more specifically, it relates to a kind of wastewater from rice flour plants advanced treatment system.
Background technique
The raw material for producing rice flour is rice etc., and Raw material processing is similar with common starch production, discharges in process of production
A large amount of waste water mainly contain deliquescent starch and a small amount of protein in waste water, and wherein the concentration C ODcr of organic pollutant is about
10000-30000mg/L, BOD5 are about 4000-6000mg/L or so, and ammonia nitrogen and concentration of suspension are high, discharge water concentration, water
The features such as uneven, the main organic principle in waste water belong to bio-degradable organic matter, to microorganism nonhazardous and inhibit to make
With with preferable biodegradability.
In traditional biological wastewater treatment technology, mud-water separation is to complete in secondary settling tank by gravity, separation
Efficiency depends on the settling property of activated sludge, and settleability is better, and mud-water separation efficiency is higher, and the settleability of sludge depends on
The operation conditions of aeration tank, improving sludge settling must be strictly controlled the operating condition of aeration tank, and which has limited this method
The scope of application, due to the requirement that secondary settling tank is separated by solid-liquid separation, the sludge of aeration tank cannot maintain higher concentration, generally 1.5~
3.5g/L or so leads to biochemical reaction low efficiency, is further improved to limit biochemical reaction rate.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of wastewater from rice flour plants advanced treating systems
System has the advantages that improve biochemical reaction efficiency.
To achieve the above object, the utility model provides following technical solution:
A kind of wastewater from rice flour plants advanced treatment system, including it is sequentially connected primary sedimentation tank, the pond UASB, enhanced biological membrane cisterna, mixed
Solidifying sedimentation basin and clear water reserviors, the enhanced biological membrane cisterna include mutually separated reaction tank and medium sediment pool, in the reaction tank
It is provided with biologic packing material, the bottom of the reaction tank is provided with aeration tube, and bottom, which is provided with, in the medium sediment pool is connected to reaction
Mud return line in pond is provided with sludge reflux pump on the mud return line.
The organic substance in waste water is removed as anaerobic technique by the pond UASB, contact-oxidation pool is selected to go as aerobic tank
Except the ammonia nitrogen in waste water, the setting of aeration tube is so that waste water can sufficiently connect in reaction tank with the microorganism in biologic packing material
Touching, and the sludge in subsequent medium sediment pool is back in reaction tank in time by mud return line, so that reaction tank
Interior sludge is able to maintain higher concentration, reach subsequent sedimentation it is good while, it is ensured that the concentration of sludge in reaction tank so that instead
Biochemical reaction efficiency in Ying Chi further increases.
The utility model is further arranged: being provided with steam-water injection and temperature on the pipeline of the pond UASB water inlet
Sensor is spent, steam pipe is connected on the steam-water injection, is provided with self-supporting temperature-sensing valve on the steam pipe.
Since temperature has an impact to UASB removal COD effect, increased with temperature, anaerobe increased activity, acid-producing bacteria
Be restored with methanogen equilibrium state, thus by first passing through preheating before waste water enters the pond UASB, it is ensured that it is subsequent
The pond UASB keeps good removal rate, by the setting of temperature sensor can with the water temperature of reaction waste, waste water temperature compared with
When low, be passed through steam by opening self-supporting temperature-sensing valve and increase the temperature of waste water, allow waste water can be stable in suitable temperature
Degree.
The utility model is further arranged: pre- anaerobic pond, pre- anaerobism are disposed between the primary sedimentation tank and anaerobic pond
Sedimentation basin, PH neutralization pond and conditioning tank.
The pre- anaerobic pond that waste water can first pass through front in this way carries out anaerobic pretreatment, reaches more fully Anaerobic Treatment
Effect, then by PH neutralization pond carry out in PH and and conditioning tank be adjusted, it is ensured that subsequent wastewater treatment can be normally steady
It is fixed to carry out.
The utility model is further arranged: the bottom of the primary sedimentation tank is connected with Rice & peanut milk settling tank.
Sludge in this way after primary sedimentation tank precipitates can pass in Rice & peanut milk settling tank, and excessive sludgd deposition is avoided to sink just
Its normal use is influenced in pond.
The utility model is further arranged: the front end of the primary sedimentation tank is connected with collecting-tank, sets on the Rice & peanut milk settling tank
It is equipped with the liquid back pipe being back in collecting-tank for supernatant.
Supernatant is back in collecting-tank by liquid back pipe and is recycled, the further recycling benefit for water resource is reached
With, reduce water resource waste the case where.
The utility model is further arranged: being disposed with coarse rack and thin lattice along drainage flow direction in the collecting-tank
Grid.
It can play the role of multi-filtering barrier by coarse rack and fine fack, so that waste water is entering processing system
Wherein biggish suspended matter can be intercepted effectively before uniting, and avoid these suspended matters subsequent the case where leading to pipeline blockage.
The utility model is further arranged: being connected on the coagulative precipitation tank for adding aluminium polychloride and polypropylene
The branch pipe of amide.
By adding aluminium polychloride and polyacrylamide in coagulative precipitation tank, the suspended particle object in waste water is made to flocculate
Become larger, realize and be separated by solid-liquid separation convenient for post precipitation, promotes to be separated by solid-liquid separation more thorough.
The utility model is further arranged: being connected with sludge-tank on the coagulative precipitation tank, is provided on the sludge-tank
Folded spiral shell dewaterer is connected on extraction mud pipe and extraction mud pipe.
The sludge stockpiled in sludge-tank is evacuated in folded spiral shell dewaterer by extraction mud pipe and carries out subsequent dehydration, can accomplish
Timely cleaning to sludge in coagulative precipitation tank avoids stockpiling too many influence sedimentation effect.
The utility model is further arranged: being connected with the filtrate pipe passed in primary sedimentation tank on the folded spiral shell dewaterer.
Mud cake and filtrate are obtained after dehydration, wherein mud cake outward transport is handled, and filtrate is back to by filtrate pipe
It is recycled in primary sedimentation tank, achievees the purpose that water resource recycles.
The utility model is further arranged: the frame body for biologic packing material installation, the frame body are provided in the reaction tank
Top side be fixed with floating block, the vertical slot slided up and down for floating block is offered on the inner wall of the reaction tank.
Biologic packing material can be set on frame body in this way, and frame body may be implemented to float up and down, and vertical slot can play guiding and make
With so that frame body can only be gone up and down in the vertical direction, and then when liquid level declines in reaction tank, frame body is under floating block effect also under meeting
It moves, so that it is guaranteed that biologic packing material can be immersed in underwater on frame body, keeps abundant biochemical reaction.
In conclusion the utility model has the following beneficial effects:
The organic substance in waste water is removed as anaerobic technique by the pond UASB, contact-oxidation pool is selected to go as aerobic tank
It is back in reaction tank in time except the ammonia nitrogen in waste water, and by the sludge in subsequent medium sediment pool by mud return line, so as to
So that the sludge in reaction tank is able to maintain higher concentration, reach subsequent sedimentation it is good while, it is ensured that sludge in reaction tank
Concentration, improve the biochemical reaction efficiency in reaction tank, and waste water carries out preheating before entering UASB ensures that water temperature is in steady
Fixed state promotes the subsequent removal rate in the pond UASB with this, and on the supernatant of Rice & peanut milk settling tank and folded spiral shell filter press
Filtrate reach recycling, reduce the waste of water resource.
Detailed description of the invention
Fig. 1 is the flow chart of the present embodiment；
Fig. 2 is the structure chart of pre-treatment in the present embodiment；
Fig. 3 is the structure chart post-processed in the present embodiment；
Fig. 4 is the structure chart of sludge-tank in the present embodiment；
Fig. 5 is the structure chart of enhanced biological membrane cisterna in the present embodiment.
Appended drawing reference: 1, collecting-tank；2, primary sedimentation tank；3, pre- anaerobic pond；4, pre- anaerobic precipitation pond；5, PH neutralization pond；6, it adjusts
Save pond；71, coarse rack；72, fine fack；8, Rice & peanut milk settling tank；9, liquid back pipe；10, the pond UASB；11, enhanced biological membrane cisterna；111,
Reaction tank；112, medium sediment pool；113, aeration tube；12, coagulative precipitation tank；13, clear water reserviors；14, steam-water injection；15, warm
Spend sensor；16, steam pipe；17, self-supporting temperature-sensing valve；18, frame body；19, biologic packing material；20, mud return line；21, sludge
Reflux pump；22, branch pipe；23, sludge-tank；24, extraction mud pipe；25, spiral shell dewaterer is folded；26, filtrate pipe；27, floating block；28, vertical slot.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
A kind of wastewater from rice flour plants advanced treatment system, as shown in Figure 1-Figure 3, the rear place of pre-treatment and rear end including front end
Reason, wherein pre-treatment includes sequentially connected collecting-tank 1, primary sedimentation tank 2, pre- anaerobic pond 3, pre- anaerobic precipitation pond 4, PH neutralization pond 5
And conditioning tank 6, production waste water in this way is introduced into collecting-tank 1, and is disposed with thick lattice along water (flow) direction in collecting-tank 1
Grid 71 and fine fack 72, can play the role of multi-filtering barrier so that waste water enter processing system before wherein compared with
Big suspended matter can be intercepted effectively, these suspended matters subsequent the case where leading to pipeline blockage is avoided, and subsequent waste water is entering
Into primary sedimentation tank 2, precipitating, which is realized, is separated by solid-liquid separation, and wherein sludge is connected in Rice & peanut milk settling tank 8 and stores, liquid then lasting entrance
Into pre- anaerobic pond 3, and it is connected with the liquid back pipe 9 being back in collecting-tank 1 for supernatant on Rice & peanut milk settling tank 8, reaches
The case where further recycling for water resource, reduction water resource waste；Then waste water passes sequentially through pre- anaerobic pond 3, pre-
Anaerobic precipitation pond 4, PH neutralization pond 5 and conditioning tank 6, it is pre- that the pre- anaerobic pond 3 that such waste water can first pass through front carries out anaerobism
Processing reaches more fully Anaerobic Treatment effect, then by adding in NaOH medicament progress PH and and adjusting in PH neutralization pond 5
Section pond 6 is adjusted, it is ensured that subsequent wastewater treatment can be carried out with normal table.
Wherein the post-processing of rear end include the sequentially connected pond UASB 10, enhanced biological membrane cisterna 11, coagulative precipitation tank 12 with
And clear water reserviors 13, wherein the pond UASB 10 is connected to conditioning tank 6, have an impact since temperature removes COD effect to the pond UASB 10, therefore
Steam-water injection 14 and temperature sensor 15 are provided on the water inlet pipeline in the pond UASB 10, on steam-water injection 14
It is connected on steam pipe 16 and steam pipe 16 and is provided with self-supporting temperature-sensing valve 17, the preheating to waste water may be implemented in this way, with temperature
Degree increases, and anaerobe increased activity, acid-producing bacteria and methanogen equilibrium state are restored, thus by entering in waste water
Preheating is first passed through before the pond UASB 10, it is ensured that it is subsequent to keep good removal rate in the pond UASB 10, pass through setting for temperature sensor 15
Steam can be passed through by opening self-supporting temperature-sensing valve 17 to increase with the water temperature of reaction waste, when the temperature of waste water is lower by setting
The temperature of waste water, allow waste water can be stable in suitable temperature, 80% ~ 90% COD, BOD can be removed through the pond UASB 10.
Subsequent waste water enters back into enhanced biological membrane cisterna 11, and wherein enhanced biological membrane cisterna 11 includes mutually separated reaction tank
111 and medium sediment pool 112, it is provided in reaction tank 111 on frame body 18 and frame body 18 and is provided with biologic packing material 19, and reacted
Pond 111 is provided with aeration tube 113, and the mud return line 20 being connected in reaction tank 111 is provided in the bottom of medium sediment pool 112,
And sludge reflux pump 21 is connected on mud return line 20, can make in this way the sludge in reaction tank 111 be able to maintain compared with
High concentration, reach subsequent sedimentation it is good while, it is ensured that the concentration of sludge in reaction tank 111 so that the biochemistry in reaction tank 111
Reaction efficiency further increases, and another branch of mud return line 20 passes to pre- anaerobic precipitation pond 4, can mention in this way
The pH value (being increased to 5.5 ~ 6.0 by original 4 ~ 5) of high pre- anaerobic pond 3, the pH value for improving pre- anaerobic pond 3 can reduce 30% ~
50% sodium hydroxide concentration；Guarantee that pre- 3 sludge concentration of anaerobic pond is higher simultaneously, and reduce the discharge amount of sludge, reduces operation
Cost.
Then waste water is entered back into coagulative precipitation tank 12 and is precipitated, and should pass through branch pipe 22 in the process toward coagulative precipitation tank
Aluminium polychloride and polyacrylamide are added in 12, so that the suspended particle object in waste water is flocculated and are become larger, are convenient for post precipitation
It realizes and is separated by solid-liquid separation, promote to be separated by solid-liquid separation more thorough；By precipitating after sludge pass to sludge-tank 23(such as Fig. 4) in storage,
Last waste water, which passes in clear water reserviors 13, completes entire wastewater treatment and outlet.
As shown in figure 4, be provided with extraction mud pipe 24 in sludge-tank 23 and be connected with folded spiral shell dewaterer 25 on extraction mud pipe 24,
The sludge stockpiled in sludge-tank 23 is evacuated in folded spiral shell dewaterer 25 by extraction mud pipe 24 and carries out subsequent dehydration, can accomplish pair
The timely cleaning of sludge in coagulative precipitation tank 12 avoids stockpiling too many influence sedimentation effect, the mud obtained after dehydration
Cake outward transport processing, and filtrate is then back in primary sedimentation tank 2 by filtrate pipe 26 and is recycled, and reaches the mesh of water resource recycling
's.
As shown in figure 5, being fixed with floating block 27 in the top side of frame body 18, while being opened up on the inner wall of reaction tank 111
There is the vertical slot 28 slided up and down for floating block 27,111 roof of reaction tank, and then the liquid level in reaction tank 111 are run through at the top of vertical slot 28
When decline, frame body 18 can also move down under the effect of floating block 27, so that it is guaranteed that biologic packing material 19 can be immersed in water on frame body 18
Under face, abundant biochemical reaction is kept.
Specific work process: production waste water first enters in collecting-tank 1, and the suspended matter in water can be by 71 He of coarse rack
Fine fack 72 effectively intercepts, and enters back into primary sedimentation tank 2 and carries out precipitating realization separation of solid and liquid, wherein the sludge of bottom precipitation is subsequent
It passes in Rice & peanut milk settling tank 8 and stores, then waste water passes sequentially through realizes in pre- anaerobic pond 3, PH neutralization pond 5 and conditioning tank 6
Pre-treatment, it is subsequent using steam-water injection 14 preheat after enter in the pond UASB 10, remove waste water in organic matter
Matter is completed whole then into the ammonia nitrogen removed in waste water in enhanced biological membrane cisterna 11 after precipitating using coagulative precipitation tank 12
A treatment process, complete processing waste water enter in clear water reserviors 13 can outlet, reduce the pollution to environment.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can according to need the modification that not creative contribution is made to the present embodiment after reading this specification, but
As long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of wastewater from rice flour plants advanced treatment system, it is characterized in that: including sequentially connected primary sedimentation tank (2), the pond UASB (10), strong
Metaplasia object membrane cisterna (11), coagulative precipitation tank (12) and clear water reserviors (13), the enhanced biological membrane cisterna (11) includes mutually separated
Reaction tank (111) and medium sediment pool (112), is provided with biologic packing material (19), the reaction tank in the reaction tank (111)
(111) bottom is provided with aeration tube (113), and the interior bottom of the medium sediment pool (112), which is provided with, to be connected in reaction tank (111)
Mud return line (20) is provided with sludge reflux pump (21) on the mud return line (20).
2. wastewater from rice flour plants advanced treatment system according to claim 1, it is characterized in that: the pond UASB (10) water inlet
It is provided with steam-water injection (14) and temperature sensor (15) on pipeline, is connected on the steam-water injection (14)
Steam pipe (16) is provided with self-supporting temperature-sensing valve (17) on the steam pipe (16).
3. wastewater from rice flour plants advanced treatment system according to claim 1, it is characterized in that: the primary sedimentation tank (2) and anaerobic pond
Between be disposed with pre- anaerobic pond (3), pre- anaerobic precipitation pond (4), PH neutralization pond (5) and conditioning tank (6).
4. wastewater from rice flour plants advanced treatment system according to claim 1, it is characterized in that: the bottom of the primary sedimentation tank (2) connects
It is connected to Rice & peanut milk settling tank (8).
5. wastewater from rice flour plants advanced treatment system according to claim 4, it is characterized in that: the front end of the primary sedimentation tank (2) connects
It is connected to collecting-tank (1), the liquid back pipe (9) being back in collecting-tank (1) for supernatant is provided on the Rice & peanut milk settling tank (8).
6. wastewater from rice flour plants advanced treatment system according to claim 5, it is characterized in that: along sewage in the collecting-tank (1)
Flow direction is disposed with coarse rack (71) and fine fack (72).
7. wastewater from rice flour plants advanced treatment system according to claim 1, it is characterized in that: connecting on the coagulative precipitation tank (12)
It is connected to the branch pipe (22) for adding aluminium polychloride and polyacrylamide.
8. wastewater from rice flour plants advanced treatment system according to claim 7, it is characterized in that: connecting on the coagulative precipitation tank (12)
It is connected to sludge-tank (23), is provided on the sludge-tank (23) on extraction mud pipe (24) and extraction mud pipe (24) and is connected with folded spiral shell dewaterer
(25)。
9. wastewater from rice flour plants advanced treatment system according to claim 8, it is characterized in that: connecting on the folded spiral shell dewaterer (25)
It is connected to the filtrate pipe (26) passed in primary sedimentation tank (2).
10. wastewater from rice flour plants advanced treatment system according to claim 1, it is characterized in that: setting in the reaction tank (111)
There is the frame body (18) for biologic packing material (19) installation, the top side of the frame body (18) is fixed with floating block (27), the reaction
The vertical slot (28) slided up and down for floating block (27) is offered on the inner wall in pond (111).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148969.1U CN209493456U (en) | 2019-01-25 | 2019-01-25 | Wastewater from rice flour plants advanced treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920148969.1U CN209493456U (en) | 2019-01-25 | 2019-01-25 | Wastewater from rice flour plants advanced treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209493456U true CN209493456U (en) | 2019-10-15 |
Family
ID=68156239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920148969.1U Active CN209493456U (en) | 2019-01-25 | 2019-01-25 | Wastewater from rice flour plants advanced treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209493456U (en) |
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2019
- 2019-01-25 CN CN201920148969.1U patent/CN209493456U/en active Active
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