CN108101314A - A kind of comprehensive treatment Application way of livestock breeding wastewater - Google Patents
A kind of comprehensive treatment Application way of livestock breeding wastewater Download PDFInfo
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- 239000002351 wastewater Substances 0.000 title claims abstract description 75
- 238000009395 breeding Methods 0.000 title claims abstract description 22
- 244000144972 livestock Species 0.000 title claims abstract description 22
- 230000001488 breeding effect Effects 0.000 title claims abstract description 21
- 238000000926 separation method Methods 0.000 claims abstract description 24
- 230000003647 oxidation Effects 0.000 claims abstract description 17
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 17
- 239000002361 compost Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000001179 sorption measurement Methods 0.000 claims abstract description 11
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000010802 sludge Substances 0.000 claims description 52
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 52
- 229910001868 water Inorganic materials 0.000 claims description 52
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 14
- 244000005700 microbiome Species 0.000 claims description 14
- 239000011574 phosphorus Substances 0.000 claims description 14
- 229910052698 phosphorus Inorganic materials 0.000 claims description 14
- 230000004913 activation Effects 0.000 claims description 13
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 239000012528 membrane Substances 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 239000002893 slag Substances 0.000 claims description 8
- 238000006555 catalytic reaction Methods 0.000 claims description 7
- 230000001112 coagulating effect Effects 0.000 claims description 7
- 239000000706 filtrate Substances 0.000 claims description 7
- 230000000694 effects Effects 0.000 claims description 6
- 230000008021 deposition Effects 0.000 claims description 5
- 230000007062 hydrolysis Effects 0.000 claims description 5
- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
- 238000003973 irrigation Methods 0.000 claims description 5
- 230000002262 irrigation Effects 0.000 claims description 5
- 230000000813 microbial effect Effects 0.000 claims description 5
- 230000020477 pH reduction Effects 0.000 claims description 5
- 238000001556 precipitation Methods 0.000 claims description 5
- 238000010992 reflux Methods 0.000 claims description 5
- 238000000108 ultra-filtration Methods 0.000 claims description 5
- 102000004190 Enzymes Human genes 0.000 claims description 4
- 108090000790 Enzymes Proteins 0.000 claims description 4
- 230000004888 barrier function Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 4
- 238000006477 desulfuration reaction Methods 0.000 claims description 4
- 230000023556 desulfurization Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 230000008859 change Effects 0.000 claims description 3
- 238000005189 flocculation Methods 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 102000004882 Lipase Human genes 0.000 claims description 2
- 108090001060 Lipase Proteins 0.000 claims description 2
- 239000004367 Lipase Substances 0.000 claims description 2
- 108091005804 Peptidases Proteins 0.000 claims description 2
- 239000004365 Protease Substances 0.000 claims description 2
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 claims description 2
- 235000019421 lipase Nutrition 0.000 claims description 2
- 230000037452 priming Effects 0.000 claims description 2
- 230000035484 reaction time Effects 0.000 claims description 2
- 102000004157 Hydrolases Human genes 0.000 claims 1
- 108090000604 Hydrolases Proteins 0.000 claims 1
- 239000002253 acid Substances 0.000 claims 1
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000007654 immersion Methods 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 8
- 244000144977 poultry Species 0.000 abstract description 8
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 4
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- 230000003197 catalytic effect Effects 0.000 abstract description 3
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- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000003621 irrigation water Substances 0.000 abstract description 2
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 abstract 1
- 238000006385 ozonation reaction Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
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- 230000005484 gravity Effects 0.000 description 8
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- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 239000000701 coagulant Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
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- 238000003860 storage Methods 0.000 description 2
- 241000186046 Actinomyces Species 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 244000025254 Cannabis sativa Species 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
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- 150000002632 lipids Chemical class 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000003895 organic fertilizer Substances 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000005067 remediation Methods 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
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
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- 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
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
-
- 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
- C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
- C02F1/56—Macromolecular compounds
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/725—Treatment of water, waste water, or sewage by oxidation by catalytic oxidation
-
- 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
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/78—Treatment of water, waste water, or sewage by oxidation with ozone
-
- 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
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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
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
-
- 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
- C02F3/28—Anaerobic digestion processes
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/28—Anaerobic digestion processes
- C02F3/2846—Anaerobic digestion processes using upflow anaerobic sludge blanket [UASB] reactors
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- 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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- 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
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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
- 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
- C02F3/347—Use of yeasts or fungi
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
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- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses a kind of livestock breeding wastewater comprehensive treatment using technique, concrete technology is：Separation of solid and liquid-biological adsorption cohesion-UASB-two-stage A/O-efficient MBR-chemical dephosphorization-ultraviolet catalytic ozone oxidation.Compared with prior art, the present invention has the advantages that：The combination that this technology passes through above-mentioned technique, it is ensured that waste water can reach after processing《Livestock and poultry breeding industry pollutant emission standard》In (GB18596 2001) intensive pig farm pollutant emission limit and《Agricultural irrigation water quality standard》(GB 5,084 2005) requirement；Ensure it is up to standard on the basis of recycle by biological adsorption cohesion organic matter in breeding wastewater and the nutriments such as nitrogen phosphorus carry out compost production, resource reclaim can not be carried out by solving the problems, such as that existing process Single Pollution is administered；Ozone oxidation efficiency is improved by ultraviolet catalytic, solves the problems, such as that existing ozonation technology is unable to stably reaching standard and high energy consumption；By generating electricity to the recycling of biogas, the extra power input of integrated artistic is greatly reduced.
Description
Technical field
The present invention relates to a kind of comprehensive treatment Application way of livestock breeding wastewater, belong to the application technology as the second resource of sewage
Field.
Background technology
China's livestock and poultry cultivation is huge, and only by taking live pig as an example, annual live pig delivers quantity for sale close to 1,200,000,000, and year generates excrement
3,000,000,000 tons of liquid pollutant.The situation that pollutional load is high, emission compliance level is relatively low is presented in livestock and poultry large-scale cultivation, and livestock and poultry cultivation draws
The environmental pollution risen has greatly exceeded environment maximum capacity and bearing capacity, it has also become the main original of China's deterioration of the ecological environment
One of because.It proposes " to accelerate that livestock and poultry cultivation is promoted to discard in the 14th meeting of center finance and economics leading group on December 21st, 2016
Object processing and recycling, the relation production and living environment of rural resident more than 600,000,000, relation rural energy revolution, relation can be continuous
Improve soil productivity, administered agricultural non-point source pollution, be a long-range good job of profit of benefiting the nation and the people.Adhere to governmental support,
Enterprise dominant, the policy of market operation, using biogas and bio-natural gas as main processing direction, to be locally used for rural area
The energy and Agricultural organic fertilizer are main use direction, strive, in " 13 " period, solving extensive livestock and poultry farm excrement substantially
Dirt processing and recycling problem.
Traditional livestock and poultry breeding industry waste remediation is to raise-the ecological pattern of natural pond-fruit (grass, woods, dish, tea etc.) and to reach
Mark discharge is based on leading environment-friendly type pattern, and shortcoming is individually present in both of which.
Ecological pattern advantage is that breeding combines, turns harm into good, and processing cost is low, easy.Shortcoming is：1. need abundance
Farmland it is mating, many farms are without this condition；2. crop discharges continuity contradiction, it is necessary to substantial amounts of with fertilizer is seasonal with waste
Storage space；3. biogas slurry needs to clarify, otherwise pipe network easily blocks, and direct ditch spread or a large amount of flood irrigations easily cause soil hardening；4. it defends
Raw degree is low, still there is larger risk of environmental pollution.
Qualified discharge for leading environment-friendly type there are the problem of：1. most treatment effects are bad, waste water disposal facility can not
Normal operation, a large amount of waste liquids do not obtain effectively processing directly discharge, serious pollution of ecological environment；2. a small number of normal projects
Higher there are processing cost, operation stability is poor, and it is more difficult that discharge standard is fully achieved；3. using water process to be primarily directed toward,
Ignore the processing disposal of excrement, easily cause the in line water body of excrement.
The content of the invention
It is an object of the invention to develop a kind of livestock breeding wastewater Processing tecchnics, the technology fully recycled with resource
Substitute the treatment technology based on traditional Degradation and Transformation, and pass through optimizing and revising for waste water treatment process, it is ensured that cultivated after processing
The water quality of waste water can reach every discharge standard of national regulation and field irrigation requirement, and reduce energy consumption saving operation into
This.
To achieve these goals, technical scheme is as follows：
A kind of livestock breeding wastewater comprehensive treatment Application way, includes the following steps：
S1, livestock breeding wastewater is buffered into regulating pondage by the regulating reservoir that catchments using after barrier canal removal floating material, led to
Enter in solid-liquid separating machine, isolate excrement slag and secondary waste water；
S2, excrement slag isolated in step S1 is used for compost treatment, the secondary waste water is passed through biological adsorption coagulates
In poly- pond, microbial flocculant is added in the biological adsorption coagulating basin, after carrying out adsorption-flocculation, is delivered to by diaphragm pump
Filter press is dehydrated, and isolates sludge and filtrate；
S3, the sludge is used for compost treatment, the filtrate is passed through in hydrolysis acidification pool, acidifying is hydrolyzed, obtains
To acidified waste water；
S4, the acidified waste water is passed through in UASB reactors, after carrying out Anaerobic Treatment, generates biogas and three-level waste water；
S5, by the biogas by after gas-water separation, desulfurization be used for fuel gas generation, the three-level waste water is passed through anaerobism and is sunk
In the pond of shallow lake, mud-water separation is carried out, obtains secondary sludge and level Four waste water；
S6, the part secondary sludge is passed back into UASB reactors, remaining secondary sludge is discharged into activation of microorganism pond, will
The level Four waste water is passed through in level-one A/O ponds, after carrying out preliminary oxidation processing, is passed through in secondary settling tank, is carried out mud-water separation, is obtained
Activated sludge and Pyatyi waste water；
S7, by the part activity sludge reflux to level-one A/O ponds, residual active sludge is discharged into activation of microorganism pond
It is interior, the Pyatyi waste water is passed through in two level A/O ponds, after carrying out further oxidation processes, is passed through in MBR membrane cisternas, utilizes submergence
Formula ultrafiltration membrane carries out mud-water separation, obtains three-level sludge and six grades of waste water；
S8, the three-level sludge is transferred in activation of microorganism pond, six grades of waste water is passed through in dephosphorization reaction tank, into
It after row dephosphorization, is passed through in final deposition pool, carries out mud-water separation, obtain phosphorus containing sludge and seven grades of waste water；
S9, by the phosphorus containing sludge for compost, seven grades of waste water is passed through in catalysis oxidation pond, by ultraviolet light and
After the catalysis oxidation of ozone, reuse pool is discharged, for planting the irrigation of land used.
Preferably, the microbial flocculant is produced by activation of microorganism pond, and production control condition is as follows：Biology
PH in activating tank is controlled between 7.0~7.5；Dissolved oxygen is controlled in 3.0~5.0mg/L；It adds with compound biological enzyme (with water
Solve enzyme, lipase, compound based on protease) 1~2ppm；Priming reaction time control is when 3~6 is small.
The sludge in bioactivation pond is discharged into after culture, can be used as refined biometric flocculant.Refined biometric flocculant
In principle active component contain bacterium, actinomyces, fungi, protein, amino acid, lipid, polysaccharide etc..
Preferably, the weight percent of the part secondary sludge is the 50~75% of secondary sludge total amount.
Preferably, the weight percent of the amount of activated sludge is the 25~50% of total amount of activated sludge.
The basic principle of the present invention is：Gravity enters adjusting of catchmenting after breeding wastewater excludes larger floating material by barrier canal
Pond.The regulating reservoir that catchments primarily serves the effect of buffering regulating pondage, and regulating reservoir water outlet of catchmenting is promoted to solid-liquid point by submersible sewage pump
It disembarks.Breeding wastewater is carried out by separation of solid and liquid by solid-liquid separating machine, the excrement slag entered function compost workshop isolated carries out heap
Fertilizer, the waste water gravity after separation flow into biological adsorption coagulating basin.Addition activation of microorganism pond activation life in biological adsorption coagulating basin
The biological flocculant of production, by be stirred to react by the suspended matter in water and colloid and the organic matter being dissolved in water, nitrogen, phosphorus etc. into
Row adsorption-condensation, the water outlet of biological adsorption coagulating basin are delivered to filter press by diaphragm pump and are dehydrated.The dewatered sludge of filter press into
Enter compost workshop to carry out cooperateing with compost with the excrement slag after separation of solid and liquid, the filtrate gravity of filter press flows into hydrolysis acidification pool.In water
Larger molecular organics in solution acidifying pool inner water are broken down into small molecular organic acid, and hydrolysis acidification pool water outlet enters UASB reactions
Device.Substantial amounts of organic matter is decomposed by anaerobic microbial conversion and generates biogas in waste water in UASB reactors, and UASB water outlets, which enter, to be detested
Oxygen precipitation pond.Biogas is generated electricity by increasing after gas-water separation, desulfurization, storage into gas electricity generator.In anaerobic precipitation pond
Mud-water separation is carried out to UASB water outlets, and supplements refluxing portion sludge and enters UASB reactors, excess sludge is discharged into microorganism work
Change pond, water outlet gravity in anaerobic precipitation pond flows into level-one A/O ponds.The further oxygenolysis of organic matter, water in level-one A/O pool inner waters
In mineralized nitrogen for nitrate state nitrogen, and be nitrogen by part nitrate state nitrogen denitrification by the reflux of mating secondary settling tank,
The water outlet gravity flow of level-one A/O ponds enters secondary settling tank.Mud-water separation, amount of activated sludge reflux to level-one are carried out to waste water in secondary settling tank
A sections of A/O ponds water inlet end, partial sludge are discharged into activation of microorganism pond, and secondary clarifier effluent enters two level A/O ponds.It is main in two level A/O ponds
The denitrification denitrogenation of waste water is carried out, and further reduces the organic concentration in water, water outlet gravity flow in two level A/O ponds enters MBR
Membrane cisterna.Equipped with submerged ultrafiltration in MBR membrane cisternas, mud-water separation is carried out to waste water, using pumping form by ultrafiltration membrane by MBR
Water in membrane cisterna is evacuated to dephosphorization reaction tank, and the excess sludge of MBR membrane cisternas is discharged into activation of microorganism pond.Pass through in dephosphorization reaction tank
The Dephosphorization reagents such as addition PAC, PAM make the phosphorus in waste water form precipitation, and the water outlet of dephosphorization reaction tank flows into final deposition pool.It gives up in final deposition pool
Water carries out mud-water separation again, and phosphorus sludge entered function compost workshop compost is cried out in discharge, and the waste water gravity flow of discharge, which enters, urges
Change oxidation pond.In catalysis oxidation pond by ultraviolet catalytic promoted ozone oxidability, in waste water difficult degradation it is organic
Object is further degraded, and the colourity of waste water is greatly lowered, and water outlet gravity flow in ozone oxidation pond enters reuse pool.Recycle-water
Waste water recycling in the pool irrigates periphery plantation land used.
Compared with prior art, the advantage of the invention is that：
1st, every year can COD544.76 tons of emission reduction, 43.68 tons of ammonia nitrogen, 19.15 tons of total phosphorus；
2nd, deep phosphorous removal (TP≤5mg/L) can be realized by adding appropriate coagulant using the method for the present invention；
3rd, water outlet can reuse rush column or irrigated farmland, have apparent water-saving result, every year can be 2.74 ten thousand tons water-saving.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is cultivating wastewater purification process flow chart of the present invention.
Specific embodiment
With reference to specific embodiment, the present invention is described in detail.Following embodiment will be helpful to the technology of this field
Personnel further understand the present invention, but the invention is not limited in any way.It should be pointed out that the ordinary skill to this field
For personnel, without departing from the inventive concept of the premise, various modifications and improvements can be made.These belong to the present invention
Protection domain.
Embodiment 1
It is 150m to present embodiments provide a kind of processing water3The pig-breeding wastewater comprehensive treatment Application way of/d, it is dirty
Water is from column waste water, pig urine and part pig manure is rushed, and technological process is as shown in Figure 1, specifically comprise the following steps：
S1, by livestock breeding wastewater using barrier canal remove floating material after by catchment regulating reservoir buffer regulating pondage after,
It is passed through in solid-liquid separating machine, isolates excrement slag and secondary waste water；
S2, excrement slag isolated in step S1 is used for compost treatment, the secondary waste water is passed through biological adsorption coagulates
In poly- pond, microbial flocculant is added in the biological adsorption coagulating basin, after carrying out adsorption-flocculation, is delivered to by diaphragm pump
Filter press is dehydrated, and isolates sludge and filtrate；
S3, the sludge is used for compost treatment, the filtrate is passed through in hydrolysis acidification pool, acidifying is hydrolyzed, obtains
To acidified waste water；
S4, the acidified waste water is passed through in UASB reactors, after carrying out Anaerobic Treatment, generates biogas and three-level waste water；
S5, by the biogas by after gas-water separation, desulfurization be used for fuel gas generation, the three-level waste water is passed through anaerobism and is sunk
In the pond of shallow lake, mud-water separation is carried out, obtains secondary sludge and level Four waste water；
S6, the part secondary sludge (50~75wt%) is passed back into UASB reactors, remaining secondary sludge is discharged into micro-
The level Four waste water is passed through in level-one A/O ponds by bioactivation pond, after carrying out preliminary oxidation processing, is passed through in secondary settling tank, is carried out
Mud-water separation obtains activated sludge and Pyatyi waste water；
S7, the part activated sludge (25~50wt%) is back in level-one A/O ponds, residual active sludge is discharged into micro-
In bioactivation pond, the Pyatyi waste water is passed through in two level A/O ponds, after carrying out further oxidation processes, is passed through MBR membrane cisternas
It is interior, mud-water separation is carried out using submerged ultrafiltration, obtains three-level sludge and six grades of waste water；
S8, the three-level sludge is transferred in activation of microorganism pond, six grades of waste water is passed through in dephosphorization reaction tank, into
It after row dephosphorization, is passed through in final deposition pool, carries out mud-water separation, obtain phosphorus containing sludge and seven grades of waste water；
S9, by the phosphorus containing sludge for compost, seven grades of waste water is passed through in catalysis oxidation pond, by ultraviolet light and
After the catalysis oxidation of ozone, reuse pool is discharged, for planting the irrigation of land used.
After processing by the present embodiment method, what water outlet reached《Livestock and poultry breeding industry pollutant emission standard》
(GB18596-2001) in intensive pig farm pollutant emission limit and《Agricultural irrigation water quality standard》(GB5084-2005) standard
It is required that.Average inlet COD concentration is 10000mg/L or so, and average effluent COD concentration is 50mg/L；Average influent ammonium concentration
For 800mg/L, average water outlet ammonia nitrogen concentration is 2.16mg/L；Total phosphorus concentration of averagely intaking is 350mg/L, and average water outlet total phosphorus is dense
It spends and is counted for 0.20mg/L.
The present embodiment every year can COD544.76 tons of emission reduction, 43.68 tons of ammonia nitrogen, 19.15 tons of total phosphorus.It is added using this technique
Appropriate coagulant can realize deep phosphorous removal (TP≤5mg/L).The case water outlet can reuse rush column or irrigated farmland, have apparent section
Water effect, every year can be 2.74 ten thousand tons water-saving.
In conclusion only presently preferred embodiments of the present invention, be not used for limiting the scope that the present invention is implemented, it is all according to
The equivalent changes and modifications carried out by shape, construction, feature and spirit described in scope of the invention as claimed should all be included in this
In the right of invention.
Claims (5)
1. the comprehensive treatment Application way of a kind of livestock breeding wastewater, which is characterized in that include the following steps：
S1, livestock breeding wastewater is buffered into regulating pondage by the regulating reservoir that catchments using after barrier canal removal floating material, be passed through solid
In liquid separator, excrement slag and secondary waste water are isolated；
S2, excrement slag isolated in step S1 is used for compost treatment, the secondary waste water is passed through biological adsorption coagulating basin
In, microbial flocculant is added in the biological adsorption coagulating basin, after carrying out adsorption-flocculation, press filtration is delivered to by diaphragm pump
Machine is dehydrated, and isolates sludge and filtrate；
S3, the sludge is used for compost treatment, the filtrate is passed through in hydrolysis acidification pool, acidifying is hydrolyzed, obtains acid
Change waste water；
S4, the acidified waste water is passed through in UASB reactors, after carrying out Anaerobic Treatment, generates biogas and three-level waste water；
S5, by the biogas by after gas-water separation, desulfurization be used for fuel gas generation, the three-level waste water is passed through anaerobic precipitation pond
It is interior, mud-water separation is carried out, obtains secondary sludge and level Four waste water；
S6, the part secondary sludge is passed back into UASB reactors, remaining secondary sludge is discharged into activation of microorganism pond, by described in
Level Four waste water is passed through in level-one A/O ponds, after carrying out preliminary oxidation processing, is passed through in secondary settling tank, is carried out mud-water separation, is obtained activity
Sludge and Pyatyi waste water；
S7, by the part activity sludge reflux to level-one A/O ponds, residual active sludge is discharged into activation of microorganism pond, will
The Pyatyi waste water is passed through in two level A/O ponds, after carrying out further oxidation processes, is passed through in MBR membrane cisternas, is utilized immersion ultrafiltration
Film carries out mud-water separation, obtains three-level sludge and six grades of waste water；
S8, the three-level sludge is transferred in activation of microorganism pond, six grades of waste water is passed through in dephosphorization reaction tank, is removed
It after phosphorus, is passed through in final deposition pool, carries out mud-water separation, obtain phosphorus containing sludge and seven grades of waste water；
S9, the phosphorus containing sludge is used for compost, seven grades of waste water is passed through in catalysis oxidation pond, by ultraviolet light and ozone
Catalysis oxidation after, reuse pool is discharged, for planting the irrigation of land used.
2. the comprehensive treatment Application way of livestock breeding wastewater as described in claim 1, which is characterized in that the microorganism wadding
Solidifying agent is produced by activation of microorganism pond, and production control condition is as follows：PH in bioactivation pond is controlled between 7.0~7.5；It is molten
Oxygen control is solved in 3.0~5.0mg/L；It adds with 1~2ppm of compound biological enzyme；Priming reaction time control is when 3~6 is small.
3. the comprehensive treatment Application way of livestock breeding wastewater as described in claim 1, which is characterized in that the compound bio
Enzyme includes hydrolase, lipase and protease.
4. the comprehensive treatment Application way of livestock breeding wastewater as described in claim 1, which is characterized in that the part is secondary
The weight percent of sludge is the 50~75% of secondary sludge total amount.
5. the comprehensive treatment Application way of livestock breeding wastewater as described in claim 1, which is characterized in that described amount of activated
The weight percent of sludge is the 25~50% of total amount of activated sludge.
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Application publication date: 20180601 |