CN205528250U - Breeding wastewater treatment system - Google Patents
Breeding wastewater treatment system Download PDFInfo
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- CN205528250U CN205528250U CN201620026906.5U CN201620026906U CN205528250U CN 205528250 U CN205528250 U CN 205528250U CN 201620026906 U CN201620026906 U CN 201620026906U CN 205528250 U CN205528250 U CN 205528250U
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Abstract
The utility model provides a breeding wastewater treatment system earlier utilizes coagulating sedimentation to get rid of difficult degradation COD, gets rid of a large amount of suspended solids simultaneously, then carries out biochemical treatment through UASB pond and AO pond, effectively gets rid of the organic pollutant in the sewage and ammonia nitrogen etc. Passes through fenton oxidation processing system at last, gets rid of pollutant oxidation that can not biochemical degradation in the sewage, and the sewage that passes through multi -layer processing finally reaches emission standard. This breeding wastewater treatment system degree of automation is high, and it is stable to go out water, and sewage treatment is effectual.
Description
Technical field
This utility model relates to sewage treatment area, particularly a kind of aquaculture wastewater processing system.
Background technology
Aquaculture wastewater is mainly made up of urine, remaining feces, food-residue and flushing water etc., and some places also include the sanitary sewage produced in production process, and the former is major part, and wherein flushing water account for the overwhelming majority.Sewage of farm water quality characteristic and breeding spaces structure, clear excrement mode are relevant with the use of flushing water, feed nutrition, digestive function and production management etc..Due to aquaculture organic matter of sewage dense (CODCr is up to 5000～12000mg/L, BOD are up to 2000～10000 mg/L), and wherein contain the compositions such as substantial amounts of nitrogen (NH3-N is up to 200～1500 mg/L), phosphorus, float (reaching as high as 160000 mg/L), pathogenic bacterium, these pollutant, if the most suitably processed, once enter natural water body, farmland may result in serious environmental pollution.A large amount of fecaluria outdoor storages that every day collects, easily produce a large amount of NH3、H2The harmful gas contaminated airs such as S, form stink；Mosquitos and flies multiplies, and spreads disease, and pollutes environment.Therefore, it is the most necessary for effectively administering the pollutant such as the aquaculture wastewater that plant produces.
Summary of the invention
The purpose of this utility model is to provide a kind of aquaculture wastewater processing system, the problem being effectively treated aquaculture wastewater with solution.
For achieving the above object, aquaculture wastewater processing system of the present utility model, including pretreatment system, biochemical treatment system and Fenton oxidation processing system, pretreatment system, biochemical treatment system and Fenton oxidation processing system are sequentially connected with, and described biochemical treatment system includes UASB pond, medium sediment pool, AO pond, second pond and the intermediate pool being sequentially connected with.
Described pretreatment system includes grid pond, regulating reservoir, coagulative precipitation tank and the hydrolysis acidification pool being sequentially connected with.
Described Fenton oxidation processing system includes the Fenton oxidation pond being sequentially connected with, neutralizes degassing pond and final deposition pool.
Described UASB pond includes sludge reaction district, gas-liquid-solid three-phase separator and air chamber, sludge reaction district is piled up bottom UASB pond by anaerobic sludge and is formed, gas-liquid-solid three-phase separator is positioned in the middle part of UASB pond, and gas-liquid-solid three-phase separator bottom is additionally provided with reflecting plate, and air chamber is positioned at the top in UASB pond.
Described final deposition pool is rectangular sedimentation tank.
Above scheme, have employed coagulating precipitation+hydrolysis acidification+UASB+A/O+ Fenton system process technology.Aquaculture wastewater first passes through the grid in grid pond before flowing into regulating reservoir and intercepts oarse-grained float, mixs homogeneously with sewage of low concentration phase, it is ensured that water stabilization in regulating reservoir；Water outlet is pumped into coagulative precipitation tank, adds PAC and PAM and carry out coagulating kinetics in coagulative precipitation tank, reduces the COD in sewage further；Coagulative precipitation tank water outlet from flowing into hydrolysis acidification pool, is created certain double oxygen environment in hydrolysis acidification pool and is hydrolyzed acidifying, the acidization of anaerobic treatment occurs, the substance decomposition of difficult degradation becomes the organic substrates easily degraded；In hydrolysis acidification pool, add alkali and nutritive salt, regulate the pH of sewage and improve the biodegradability of sewage.Hydrolysis acidification pool water outlet is pumped into UASB pond and carries out anaerobic treatment, the water outlet of UAS pond is from flowing into medium sediment pool, and medium sediment pool water outlet is from flowing into AO pond, and AO pond is divided into two stages, first stage is the A pond of anoxia section, second stage is the O pond of aerobic section, and sewage first flows into A pond, mixes with returned sludge and carry out anoxic treatment in A pond, remove the ammonia nitrogen pollutant in water, reducing part COD, the water outlet of A pond, from flowing into O pond, carries out Aerobic Process for Treatment in O pond and is removed further by dirt Organic substance in water simultaneously.The water outlet of O pond is from flowing into second pond, the effect of second pond is to make activated sludge and sewage carry out precipitate and separate, then water outlet is from flowing into intermediate pool, intermediate pool water outlet is pumped into Fenton oxidation pond, by the Oxidation of Fenton reagent, by in sewage not bio-degradable pollutant oxidation remove, the water outlet of Fenton oxidation pond is from flowing to neutralize in degassing pond, regulation sewage pH, minimal amount of bubble add PAM and carry out flocculation reaction in removing sewage simultaneously, neutralize in degassing pond sewage self-flowing in final deposition pool, the iron cement precipitation produced during Fenton's reaction is removed, final deposition pool supernatant qualified discharge.
Substantive distinguishing features of the present utility model and progress be:
The aquaculture wastewater processing system of the application, difficult degradation COD is removed first with coagulating sedimentation, remove substantial amounts of float simultaneously, then biochemical treatment is carried out by UASB pond and AO pond, organic pollution in sewage and ammonia nitrogen etc. are effectively removed, finally by Fenton oxidation processing system, by sewage not the pollutant oxidation of bio-degradable remove, the sewage through Multilevel method is finally reached discharge standard.This aquaculture wastewater processing system automaticity is high, stable water outlet, good sewage processing effect.
Accompanying drawing explanation
Fig. 1 is attachment structure schematic diagram of the present utility model.
Component serial number and title in figure:
Grid pond 1, regulating reservoir 2, coagulative precipitation tank 3, hydrolysis acidification pool 4, UASB pond 5, sludge reaction district 6, gas-liquid-solid three-phase separator 7, air chamber 8, medium sediment pool 9, AO pond 10, second pond 11, intermediate pool 12, Fenton oxidation pond 13, neutralization degassing pond 14, final deposition pool 15.
Detailed description of the invention
Below in conjunction with drawings and Examples, attachment structure of the present utility model and operation principle are described.
The workflow of this aquaculture wastewater processing system is: 13 → neutralization degassing pond, sewage → 10 → second pond, 11 → intermediate pool, 12 → Fenton oxidation pond, 5 → medium sediment pool, 9 → AO pond, 1 → regulating reservoir, 2 → coagulative precipitation tank, 3 → hydrolysis acidification pool, 4 → UASB pond, grid pond, 14 → final deposition pool 15.
(1) grid pond 1: aquaculture wastewater flows automatically into grid pond 1 after delivering to Sewage Disposal, sewage retains bulky grain float by artificial grid, it is to avoid enter sewage disposal system and result in blockage.
(2) regulating reservoir 2: by the setting of regulating reservoir 2, energy fully Balance Water Quality and the water yield, make sewage can compare even into subsequent processing units, improve the shock resistance of whole system, reduce the design scale of processing unit, advantageously reduce operating cost and impact that variation water quality brings simultaneously.Bigger in view of aquaculture wastewater coefficient of variation, regulating reservoir 2 designs hydraulic detention time 24 hours.
(3) coagulative precipitation tank 3: regulating reservoir 2 water outlet is pumped to coagulative precipitation tank 3, add flocculant PAC and coagulant PAM in coagulative precipitation tank 3, most suspended substances in sewage and soluble COD are effectively removed through coagulating sedimentation, heavy mud by sludge pumping to sludge-tank.
(4) hydrolysis acidification pool 4: coagulative precipitation tank 3 supernatant is from flowing into hydrolysis acidification pool 4, in hydrolysis acidification pool 4, create certain double oxygen environment be hydrolyzed acidifying, there is the acidization of anaerobic treatment, the substance decomposition of difficult degradation is become the organic substrates of easily degraded, removes part COD simultaneously.Add alkali and nutritive salt in hydrolysis acidification pool 4, improve the biodegradability of sewage, regulate the pH of sewage simultaneously between 7.0-7.5.
(5) UASB anaerobic pond: UASB pond 5 is made up of sludge reaction district 6, gas-liquid-solid three-phase separator 7 and air chamber 8 three part.Retaining a large amount of anaerobic sludge in the sludge reaction district 6 of bottom, the mud with good sedimentation function and cohesion performance forms Sludge Bed in bottom.Sewage to be processed flows into from anaerobic mud bed bottom to carry out mixing with the mud sludge blanket and contacts, and it is converted into biogas by the Organic substance in microbial decomposition sewage in mud.Biogas is constantly released with micro-bubble form, micro-bubble, in uphill process, constantly merges, and gradually forms bigger bubble, form the leaner mud of sludge concentration and the gas-liquid-solid mixed liquor of water on Sludge Bed top due to the agitation of biogas, ascend into three phase separator together.When biogas encounters the reflecting plate of gas-liquid-solid three-phase separator 7 bottom, it is folded to the surrounding of reflecting plate, then passes through water layer and enter air chamber 8, concentrate on the biogas of air chamber 8, derive with conduit.Solid-liquid mixed liquor in gas-liquid-solid mixed liquor is through being reflected into the settling zone of gas-liquid-solid three-phase separator 7, and the mud in sewage flocculates, and granule is gradually increased, and settles under gravity.The mud being precipitated on skew wall slides back in sludge reaction district 6 along skew wall, accumulates substantial amounts of mud in making reaction zone, and the process water outlet after separating with mud is overflowed from downflow weir top, settling zone, is then discharged out Sludge Bed.
(6) water outlet of medium sediment pool 9:UASB anaerobic pond is from flowing into medium sediment pool 9, by mud-water separation in medium sediment pool 9, in sludge reflux to anaerobic pond or enter sludge concentration tank.
(7) AO pond 10: medium sediment pool 9 water outlet is from flowing into AO pond 10, and AO pond 10 is divided into two stages, and the first stage is the A pond of anoxia section, and second stage is the O pond of aerobic section.Sewage first flows into A pond, and in A pond, returned sludge with second pond 11 mixes and carries out anoxic treatment, removes the ammonia nitrogen pollutant in water, reduces part COD simultaneously, and the water outlet of A pond, from flowing into O pond, carries out Aerobic Process for Treatment in O pond and removed further by dirt organic pollutants.Detailed process is: sewage is introduced into A pond, enters back into O pond, and the mud of the mixed liquor in O pond Yu second pond 11 is back to A pond simultaneously.The backflow of sludge reflux and O pond mixed liquor ensure that sufficient amount of microorganism in A pond and O pond, and makes A pond obtain the nitrate that in O pond, nitrification produces.Owing to sewage and O pond mixed liquor are directly entered A pond, provide carbon source Organic substance as much as possible for A pond denitrification, make anti-nitration reaction can be carried out in A pond.After A pond carries out denitrification, sewage can carry out degraded and the Nitrification further of organic pollution in O pond.Use such a biochemical process, organic pollution and ammonia nitrogen etc. are had fairly obvious removal effect.
(8) second pond 11:AO pond 10 water outlet is from flowing in second pond 11, and the effect of second pond 11 is to make activated sludge and sewage carry out precipitate and separate, and the A pond in wherein most activity sludge reflux to AO pond 10, excess sludge is discharged to sludge concentration tank and carries out concentration.
(9) intermediate pool 12: second pond 11 water outlet is from flowing into intermediate pool 12, and intermediate pool 12 is pumped to Fenton oxidation pond 13.
(10) Fenton oxidation pond 13: use Fenton oxidation processing system, as the guarantee that system is up to standard.Cardinal principle is additional H2O2Oxidant and Fe2+Catalyst, the most so-called Fenton medicament, both can react generation hydroxyl free radical (OH) under suitable pH, and the high oxidative capacity of hydroxyl free radical reacts with the Organic substance in sewage, decomposable asymmetric choice net oxidation of organic compounds, and then reduce the COD that dirty organism in water difficulty is decomposed.
(11) degassing pond 14 is neutralized: Fenton oxidation pond 13 water outlet is from flowing in neutralization degassing pond 14, and the pH value of sewage water processed through Fenton oxidation is acid, Fe in Fenton oxidation pond 132+With H2O2Reaction forms Fe3+, it is necessary to pH is adjusted by degassing pond 14 to neutrality in neutralizing to form Fe (OH)3, therefore in neutralizing degassing pond 14, add liquid caustic soda sewage is neutralized to neutrality, a small amount of bubble in sewage is removed simultaneously.Add PAM at neutralization degassing pond 14 end and carry out flocculation reaction.
(12) final deposition pool 15: neutralizing degassing pond 14 sewage self-flowing and be designed as flat flow to final deposition pool 15, final deposition pool 15, the sedimentation tank of flat flow uses extensively, and sedimentation effect is good.Due to Fe3+The most extraordinary coagulant, adds a small amount of PAM and just can reach good sedimentation effect.In this process except by Fe (OH)3Separation is gone in addition, colourity, SS is had extraordinary removal function simultaneously.Last final deposition pool 15 standard water discharge discharge.
Claims (5)
1. an aquaculture wastewater processing system, it is characterized in that, including pretreatment system, biochemical treatment system and Fenton oxidation processing system, pretreatment system, biochemical treatment system and Fenton oxidation processing system are sequentially connected with, and described biochemical treatment system includes UASB pond (5), medium sediment pool (9), AO pond (10), second pond (11) and the intermediate pool (12) being sequentially connected with.
Aquaculture wastewater processing system the most according to claim 1, it is characterised in that: described pretreatment system includes grid pond (1), regulating reservoir (2), coagulative precipitation tank (3) and the hydrolysis acidification pool (4) being sequentially connected with.
Aquaculture wastewater processing system the most according to claim 1, it is characterised in that: described Fenton oxidation processing system includes the Fenton oxidation pond (13) being sequentially connected with, neutralizes degassing pond (14) and final deposition pool (15).
Aquaculture wastewater processing system the most according to claim 1, it is characterized in that: described UASB pond (5) includes sludge reaction district (6), gas-liquid-solid three-phase separator (7) and air chamber (8), sludge reaction district (6) is formed in the accumulation of UASB pond (5) bottom by anaerobic sludge, gas-liquid-solid three-phase separator (7) is positioned at middle part, UASB pond (5), gas-liquid-solid three-phase separator (7) bottom is additionally provided with reflecting plate, and air chamber (8) is positioned at the top of UASB pond (5).
Aquaculture wastewater processing system the most according to claim 3, it is characterised in that: described final deposition pool (15) is rectangular sedimentation tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620026906.5U CN205528250U (en) | 2016-01-13 | 2016-01-13 | Breeding wastewater treatment system |
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| CN201620026906.5U CN205528250U (en) | 2016-01-13 | 2016-01-13 | Breeding wastewater treatment system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793591A (en) * | 2018-06-06 | 2018-11-13 | 广西师范大学 | A kind of device of processing livestock breeding wastewater containing antibiotic based on anaerobism-multiphase-fenton Fenton coupling and land percolation technology |
| CN109534507A (en) * | 2018-12-26 | 2019-03-29 | 河北旭杰环境工程有限公司 | Process for treating industrial waste water based on synchronous nitration and denitrification |
| CN113354193A (en) * | 2021-06-04 | 2021-09-07 | 深圳同道环保科技有限公司 | Intensive garden type sewage treatment system and treatment process |
| CN113955900A (en) * | 2021-10-28 | 2022-01-21 | 牧旺环境科技(杭州)有限公司 | Breeding sewage treatment device and technology |
-
2016
- 2016-01-13 CN CN201620026906.5U patent/CN205528250U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108793591A (en) * | 2018-06-06 | 2018-11-13 | 广西师范大学 | A kind of device of processing livestock breeding wastewater containing antibiotic based on anaerobism-multiphase-fenton Fenton coupling and land percolation technology |
| CN109534507A (en) * | 2018-12-26 | 2019-03-29 | 河北旭杰环境工程有限公司 | Process for treating industrial waste water based on synchronous nitration and denitrification |
| CN109534507B (en) * | 2018-12-26 | 2021-08-27 | 河北旭杰环境工程有限公司 | Industrial wastewater treatment method based on synchronous nitrification and denitrification |
| CN113354193A (en) * | 2021-06-04 | 2021-09-07 | 深圳同道环保科技有限公司 | Intensive garden type sewage treatment system and treatment process |
| CN113354193B (en) * | 2021-06-04 | 2022-08-12 | 深圳同道环保科技有限公司 | Intensive garden type sewage treatment system and treatment process |
| CN113955900A (en) * | 2021-10-28 | 2022-01-21 | 牧旺环境科技(杭州)有限公司 | Breeding sewage treatment device and technology |
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