CN106830542A - UASB two-stage A/O coagulating treatments pig farm biogas slurry system - Google Patents
UASB two-stage A/O coagulating treatments pig farm biogas slurry system Download PDFInfo
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- CN106830542A CN106830542A CN201710120230.5A CN201710120230A CN106830542A CN 106830542 A CN106830542 A CN 106830542A CN 201710120230 A CN201710120230 A CN 201710120230A CN 106830542 A CN106830542 A CN 106830542A
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- 230000001112 coagulant Effects 0.000 title claims abstract description 27
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 239000002002 slurry Substances 0.000 title claims abstract description 25
- 241000282898 Sus scrofa Species 0.000 title claims abstract description 22
- 238000009280 upflow anaerobic sludge blanket technology Methods 0.000 title claims abstract 9
- 239000010802 sludge Substances 0.000 claims abstract description 48
- 238000005516 engineering process Methods 0.000 claims abstract description 11
- 230000001105 regulatory Effects 0.000 claims abstract description 11
- 230000000694 effects Effects 0.000 claims abstract description 9
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 9
- 230000001954 sterilising Effects 0.000 claims abstract description 8
- 230000001488 breeding Effects 0.000 claims abstract description 6
- 238000011068 load Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 29
- 238000000034 method Methods 0.000 claims description 25
- 239000002351 wastewater Substances 0.000 claims description 12
- 241000276438 Gadus morhua Species 0.000 claims description 9
- 235000019516 cod Nutrition 0.000 claims description 9
- 241000894006 Bacteria Species 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 239000006228 supernatant Substances 0.000 claims description 6
- 241000565118 Cordylophora caspia Species 0.000 claims description 5
- 206010061529 Polyp Diseases 0.000 claims description 5
- 206010042602 Supraventricular extrasystoles Diseases 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims description 4
- 230000005494 condensation Effects 0.000 claims description 4
- 229920002401 polyacrylamide Polymers 0.000 claims description 4
- 238000010992 reflux Methods 0.000 claims description 4
- 239000000725 suspension Substances 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N Sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- 235000015450 Tilia cordata Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 235000012970 cakes Nutrition 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000003814 drug Substances 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 238000006460 hydrolysis reaction Methods 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 claims description 3
- 230000020477 pH reduction Effects 0.000 claims description 3
- 239000010801 sewage sludge Substances 0.000 claims description 3
- 241000588724 Escherichia coli Species 0.000 claims description 2
- 231100000614 Poison Toxicity 0.000 claims description 2
- 230000003211 malignant Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 claims description 2
- 239000002574 poison Substances 0.000 claims description 2
- 239000002893 slag Substances 0.000 claims description 2
- 230000003612 virological Effects 0.000 claims description 2
- 244000144977 poultry Species 0.000 abstract description 6
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 244000144972 livestock Species 0.000 abstract description 5
- 231100000719 pollutant Toxicity 0.000 abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 3
- 239000011574 phosphorus Substances 0.000 abstract description 3
- 229910052757 nitrogen Inorganic materials 0.000 abstract description 2
- 238000011105 stabilization Methods 0.000 abstract description 2
- 238000005345 coagulation Methods 0.000 description 3
- 230000015271 coagulation Effects 0.000 description 3
- 238000004065 wastewater treatment Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 239000004912 1,5-cyclooctadiene Substances 0.000 description 1
- CVTZKFWZDBJAHE-UHFFFAOYSA-N [N].N Chemical compound [N].N CVTZKFWZDBJAHE-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- 238000009360 aquaculture Methods 0.000 description 1
- 244000144974 aquaculture Species 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- -1 carbon-nitrogen Chemical compound 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000701 coagulant Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000249 desinfective Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010842 industrial wastewater Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
- 230000000050 nutritive Effects 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 230000001717 pathogenic Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance 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
- C02F1/52—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
- C02F1/76—Treatment of water, waste water, or sewage by oxidation with halogens or compounds of halogens
-
- 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
- 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
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
-
- 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
-
- 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
-
- 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
Abstract
A kind of UASB two-stages A/O coagulating treatments pig farm biogas slurry system, consisting of:Regulating reservoir, UASB reactors, one-level anoxic pond, one-level Aerobic Pond, two grades of anoxic ponds, two grades of Aerobic Ponds, medium sediment pool, coagulating basin, second pond, sterilization pool, effluent standards mouthful are sequentially connected；UASB reactors, sludge concentration tank, plate and frame filter press are sequentially connected；Medium sediment pool, second pond and coagulating basin are connected with sludge concentration tank, the sludge in three ponds is entered sludge concentration tank.Significantly, treatment effect stabilization, capacity of resisting impact load is strong, and simple to operate, operating cost is low for the system Nitrogen/Phosphorus Removal, and pig farm biogas slurry meets by effluent index after group technology treatment《Livestock and poultry breeding industry pollutant emission standard》（GB 18596‑2001）It is required that.
Description
Technical field
The present invention relates to improveing upflow anaerobic sludge blanket reactor (UASB), two-stage anoxic/aerobic (two-stage A/O) and mixing
Solidifying integrated treatment pig farm biogas slurry system, belongs to environmentally friendly water-treatment technology field.
Background technology
In recent years, China's scale animal and poultry cultivation industry is developed rapidly, promote increase income and uplift the people's living standard it is same
When produce serious environmental pollution.Livestock and poultry breeding industry exhaust emission has turned into one of principal element of China's Rural Plane Source Pollution,
Also the third-largest pollution sources after industrial wastewater and sanitary sewage are turned into.Statistics shows that national livestock and poultry breeding industry was arranged in 2010
The COD put（COD）1268.26 ten thousand t are reached, the waste water of the wherein high concentration that Intensive Farm of Pig Raising is produced is accounted for
Main status.At this stage, the Large-scale pig farm waste water treatment of China has been basically completed Anaerobic Treatment, that is, complete methane-generating pit etc.
The construction of anaerobism structures.Acidifying and methanation two benches by anaerobism, the organic matter of piggery wastewater high concentration are substantially achieved
Control, eliminates more than 70% COD and has killed most pathogenic bacteria.But still contain in a large amount of biogas slurries produced after fermentation
There are the rich nutritive materials such as the COD and a large amount of ammonia, phosphorus of higher concentration, if do not processed further, directly discharge the life to periphery
State environment forms serious destruction.
At present, kinds of processes have developed to pig farm biogas slurry treatment both at home and abroad, mainly there is Aerobic Process for Treatment, Anaerobic Treatment, nature
Treatment and also Tian Zuofei etc..Pig farm biogas slurry still falls within the organic wastewater of ammonia nitrogen high, and direct Aerobic Process for Treatment, energy consumption is excessive, running cost
With height.Suitable scheme should be aerobic combined treatment process after first anaerobism, but still lack at this stage economical rationality, technology into
Ripe group technology processes such waste water.Therefore, a kind of good denitrogenation and dephosphorization effect, investment and operating cost are found low, because of ground system
Preferably, operational administrative is simple, and can produce the group technology of certain economy and environmental benefit, is caused to solving large scale of pig farm waste water
Problem of environmental pollution it is particularly important.
The content of the invention
The purpose of the present invention is directed to the pollutants, biogas slurry water such as COD, nitrogen, phosphorus, suspension that pig farm biogas slurry contains high concentration
Matter is big with time fluctuation, and carbon-nitrogen ratio serious unbalance, biodegradability is poor, the features such as intractability is big, it is proposed that a kind of UASB- two-stages
A/O- coagulation integrated treatments pig farm biogas slurry system, pig farm biogas slurry meets by effluent index after group technology treatment《Livestock and poultry
Aquaculture pollutant emission standard》（GB 18596-2001）It is required that.
Realize the technical scheme is that：Using UASB reactors, one-level anoxic/aerobic（One-level A/O）, two grades lack
Oxygen/aerobic（Two grades of A/O）With coagulation quaternity integrated treatment pig farm biogas slurry.Pig farm biogas slurry is finally from sterilization pool through effluent standard
Mouth outflow, reaches discharge standard.
The system is constituted:Regulating reservoir, UASB reactors, one-level anoxic pond, one-level Aerobic Pond, two grades of anoxic ponds, two
Level Aerobic Pond, medium sediment pool, coagulating basin, second pond, sterilization pool, effluent standard mouthful are sequentially connected；UASB, sludge concentration tank, sheet frame
Filter press is sequentially connected；Medium sediment pool, second pond and coagulating basin are connected with sludge concentration tank, the sludge in three ponds is entered sludge condensation
Pond；
The system work process is as follows:
(1）Pig farm biogas slurry carries out equilibrium after being collected by pipe network in flowing into regulating reservoir certainly after coarse rack removal bulky grain excrement slag
Water quality and water；
（2）Regulating reservoir water outlet is promoted to by elevator pump and Anaerobic Treatment is carried out in UASB reactors, biogas slurry by secondary hydrolysis acidification,
Organic concentration is greatly lowered, mitigates the treatment load of system subsequent technique；
（3）The water outlet of UASB reactors from two-stage A/O biological treatment systems are flowed into, is gone here and there before and after two sets of A/O techniques under gravity
Connection, aerobic section sets reflux pump by part mixed-liquor return to respective anoxic section；First order A/O uses activated sludge process work
Skill, by shortening sludge sludge age and hydraulic detention time, promotes polyP bacteria growth, finally using spoil disposal method dephosphorization；Second level A/O
Using bio membrane process, sludge sludge age is extended, be conducive to the breeding of generation time denitrifier long, promote denitrification effect；
（4）Two-stage A/O pond water outlets carry out separation of solid and liquid from medium sediment pool is flowed into using gravitational settling effect, and further removal suspends
The biomembrane come off in thing and FEOL, ensures effluent quality；
（5）Medium sediment pool supernatant liquor overflow enters coagulating basin, and to adding appropriate PAC, PAM and dephosphorization agent white lime in coagulating basin
The suspension in waste water is set to form flco Deng medicament, while further reducing the concentration of COD and TP；
(6）Supernatant enters sterilization pool after coagulating basin water outlet carries out separation of solid and liquid into second pond, adds and is disappeared into NaClO
Poison, kills Escherichia coli, malignant bacteria and fractionated viral.It is final to ensure that water outlet meets the requirements qualified discharge；
(7）Sludge concentration tank mainly collects regulating reservoir, UASB reactors, medium sediment pool, coagulating basin and second pond in group technology
Excess sludge, by plate and frame filter press reduction moisture percentage in sewage sludge after sludge condensation, then dirt cake outward transport carries out treatment disposal.
The advantage of the invention is that:
Improved UASB reactor is to be additionally arranged outer circulation sludge refluxing apparatus on the basis of traditional UASB reactors, it is ensured that detested
Oxygen sludge is not lost in.Increase the liquid rate of climb in reactor by flowing back simultaneously, improve anaerobic fermentation efficiency, shorten waterpower
Residence time（Improvement UASB utility model patents number are 2014200062588）.Additionally, the supporting novel cloth mud device of reactor
And water-locator, wherein cloth mud device avoids returned sludge and is directly entered reactor and cause local sludge concentration too high, destroys anaerobism
The activity of granule sludge（Utility model patent number 2014200034959）, water-locator then plays a part of water distribution uniformity（It is practical new
The type patent No. 2014200055279）.By most organic pollution in the removable waste water of UASB, reduce water quality to follow-up
The impact load of technique, it is ensured that subsequent biological treatment technique is normally run.
Two-stage A/0 technique tandems, are respectively adopted activated sludge process dephosphorization and biomembrance process denitrogenation, for polyP bacteria and
The different multiplication characteristic of denitrifier, is run by controlling sludge sludge age, hydraulic detention time, reflux ratio of aerobic section mixed liquor etc.
Parameter is so as to overcome traditional A2/ O carbon sources present in denitrogenation dephosphorizing process are not enough, nitrate is disturbed, sludge sludge age is difficult to
The problems such as taking into account the generation time of denitrifier and polyP bacteria, it is achieved thereby that efficient denitrogenation dephosphorizing.
Coagulating basin has added coagulant PAC, PAM and dephosphorization agent Ca (OH)2So that coagulating sedimentation and chemical dephosphorization are formd
Synergy, improves pollutant removal.
Waste water treatment process operating cost is low, treatment effect stabilization, is adapted to large-scale pig farm wastewater treatment and Technique Popularizing.
Biogas slurry is by after group technology treatment, final outflow water water quality is better than《Livestock and poultry breeding industry pollutant emission standard》（GB
18596-2001）It is required that.
Brief description of the drawings
Fig. 1 is UASB- two-stage A/O- coagulating treatments pig farm biogas slurry system schematic.
Specific embodiment
System of the present invention is constituted:Regulating reservoir, UASB reactors, one-level anoxic pond, one-level Aerobic Pond, two grades of anoxics
Pond, two grades of Aerobic Ponds, medium sediment pool, coagulating basin, second pond, sterilization pool, effluent standards mouthful are sequentially connected；UASB reactors, sludge
Concentration basin, plate and frame filter press are sequentially connected；Medium sediment pool, second pond and coagulating basin are connected with sludge concentration tank, make the sludge in three ponds
Enter sludge concentration tank；
Treating capacity is 100m3The pig farm biogas slurry of/d, biogas slurry water quality：CODCr 2850~3000mg/L, NH3750~850mg/ of-N
950~1300mg/L of L, TP 30~40mg/L, SS.Pig farm biogas slurry carries out water quality and water by entering regulating reservoir after coarse rack
Amount regulation.Then Anaerobic Treatment will be carried out by elevator pump in waste water lifting to UASB reactors, biogas slurry by secondary hydrolysis acidification,
Organic concentration is greatly lowered.UASB reactor water outlet CODCr 700~800mg/L, NH31100~1200mg/L of-N,
300~350mg/L of TP 25~30mg/L, SS.Secondly waste water flows into two-stage A/O biological treatment systems certainly under gravity,
Two-stage A/O technique tandems, aerobic section mixed liquor is partly refluxed to anoxic section.First order A/O uses activated sludge process, passes through
Shorten sludge sludge age and hydraulic detention time, promote polyP bacteria growth, finally using spoil disposal method dephosphorization.Second level A/O is using life
Thing embrane method, using the denitrifier that biomembrane enrichment generation time is long, promotes denitrification effect.Two-stage A/O pond water outlets CODCr 300
~400mg/L, NH3400~430mg/L of-N 90~110mg/L, TP 8~10mg/L, SS.Then waste water enters medium sediment pool,
Separation of solid and liquid is carried out, oil removal is further removed（SS）, improve effluent quality.Medium sediment pool supernatant liquor enters coagulation reaction tank,
And adding the medicaments such as PAC, PAM and white lime makes the suspension in waste water form flco, while further reducing the dense of COD and TP
Degree.Coagulating basin water outlet CODCr 180~200mg/L, NH3180~200mg/L of-N 50~70mg/L, TP 3~5mg/L, SS.
Supernatant enters sterilization pool after coagulating basin water outlet carries out separation of solid and liquid into second pond, adds and is carried out disinfection into NaClO, final true
Water outlet is protected to meet the requirements qualified discharge.Final outflow water water-quality COD Cr 150~180mg/L, NH3- N 40~60mg/L, TP 2~
100~130mg/L of 3mg/L, SS.In group technology sludge concentration tank mainly collect UASB reactors, medium sediment pool, coagulating basin and
The excess sludge of second pond.By plate and frame filter press reduction moisture percentage in sewage sludge after sludge condensation, then dirt cake outward transport treatment disposal.
Claims (1)
1. a kind of UASB- two-stages A/O- coagulating treatments pig farm biogas slurry system, it is characterized in that：The system is constituted:Regulating reservoir,
UASB reactors, one-level anoxic pond, one-level Aerobic Pond, two grades of anoxic ponds, two grades of Aerobic Ponds, medium sediment pool, coagulating basin, second pond,
Sterilization pool, effluent standard mouthful are sequentially connected；UASB reactors, sludge concentration tank, plate and frame filter press are sequentially connected；Medium sediment pool, two
Heavy pond and coagulating basin are connected with sludge concentration tank, the sludge in three ponds is entered sludge concentration tank；
The system work process is as follows:
(1）Pig farm biogas slurry carries out equilibrium after being collected by pipe network in flowing into regulating reservoir certainly after coarse rack removal bulky grain excrement slag
Water quality and water；
（2）Regulating reservoir water outlet is promoted to by elevator pump and Anaerobic Treatment is carried out in UASB reactors, biogas slurry by secondary hydrolysis acidification,
Organic concentration is greatly lowered, mitigates the treatment load of system subsequent technique；
（3）The water outlet of UASB reactors is under gravity from two-stage A/O biological treatment systems are flowed into, and the series connection of two-stage A/O techniques is good
Oxygen section sets reflux pump by part mixed-liquor return to respective anoxic section；First order A/O uses Activated Sludge Process, passes through
Shorten sludge sludge age and hydraulic detention time, promote polyP bacteria growth, finally using spoil disposal method dephosphorization；Second level A/O is using life
Thing membrane process craft, extends sludge sludge age, is conducive to the breeding of generation time denitrifier long, promotes denitrification effect；
（4）Two-stage A/O pond water outlets carry out separation of solid and liquid from medium sediment pool is flowed into using gravitational settling effect, and further removal suspends
The biomembrane come off in thing and FEOL, ensures effluent quality；
（5）Medium sediment pool supernatant liquor overflow enters coagulating basin, and to adding appropriate PAC, PAM and dephosphorization agent white lime in coagulating basin
The suspension in waste water is set to form flco Deng medicament, while further reducing the concentration of COD and TP；
(6）Supernatant enters sterilization pool after coagulating basin water outlet carries out separation of solid and liquid into second pond, adds and is disappeared into NaClO
Poison, kills Escherichia coli, malignant bacteria and fractionated viral, finally ensures that water outlet meets the requirements qualified discharge；
(7）Sludge concentration tank collects the dirt of regulating reservoir, UASB reactors, medium sediment pool, coagulating basin and second pond in group technology
Mud, by plate and frame filter press reduction moisture percentage in sewage sludge after sludge condensation, then dirt cake outward transport treatment disposal.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107200400A (en) * | 2017-06-22 | 2017-09-26 | 中国天辰工程有限公司 | A kind of biochemical method of the preposition gas treatment waste water of denitrification |
| CN108328735A (en) * | 2018-03-21 | 2018-07-27 | 碧沃丰工程有限公司 | A kind of method of ammonia nitrogen in removal Wastewater from Pig Farm |
| CN109133535A (en) * | 2018-10-12 | 2019-01-04 | 河南恒安环保科技有限公司 | A kind of dry cleaning up excrement cultivating wastewater purification method |
| CN109133531A (en) * | 2018-10-10 | 2019-01-04 | 浙江博华环境技术工程有限公司 | A kind of process for town sewage treatment being applicable in quasi- IV class water quality standard |
| CN110467317A (en) * | 2019-08-26 | 2019-11-19 | 广西农垦永新畜牧集团金光有限公司 | A kind of livestock breeding wastewater innocuity disposal system and method |
| CN113371943A (en) * | 2021-06-29 | 2021-09-10 | 成都飞创科技有限公司 | Method for treating wastewater of farm |
Citations (2)
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107200400A (en) * | 2017-06-22 | 2017-09-26 | 中国天辰工程有限公司 | A kind of biochemical method of the preposition gas treatment waste water of denitrification |
| CN108328735A (en) * | 2018-03-21 | 2018-07-27 | 碧沃丰工程有限公司 | A kind of method of ammonia nitrogen in removal Wastewater from Pig Farm |
| CN109133531A (en) * | 2018-10-10 | 2019-01-04 | 浙江博华环境技术工程有限公司 | A kind of process for town sewage treatment being applicable in quasi- IV class water quality standard |
| CN109133535A (en) * | 2018-10-12 | 2019-01-04 | 河南恒安环保科技有限公司 | A kind of dry cleaning up excrement cultivating wastewater purification method |
| CN110467317A (en) * | 2019-08-26 | 2019-11-19 | 广西农垦永新畜牧集团金光有限公司 | A kind of livestock breeding wastewater innocuity disposal system and method |
| CN113371943A (en) * | 2021-06-29 | 2021-09-10 | 成都飞创科技有限公司 | Method for treating wastewater of farm |
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