CN108640453A - A kind of simultaneous water quality reaching standard process of poultry waste nutrient recycling - Google Patents

A kind of simultaneous water quality reaching standard process of poultry waste nutrient recycling Download PDF

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Publication number
CN108640453A
CN108640453A CN201810437182.7A CN201810437182A CN108640453A CN 108640453 A CN108640453 A CN 108640453A CN 201810437182 A CN201810437182 A CN 201810437182A CN 108640453 A CN108640453 A CN 108640453A
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solid
water
pond
sewage
waste
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杨斯智
杨森俊
梁婷女
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HUIZHOU BAIOUJIA TECHNOLOGY Co Ltd
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HUIZHOU BAIOUJIA TECHNOLOGY Co Ltd
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/02Biological treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C05FERTILISERS; MANUFACTURE THEREOF
    • C05FORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00Fertilisers from human or animal excrements, e.g. manure
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00Nature of the contaminant
    • C02F2101/30Organic compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • C02F3/12Activated sludge processes
    • C02F3/1236Particular type of activated sludge installations
    • C02F3/1268Membrane bioreactor systems
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

The invention discloses a kind of poultry waste nutrients to recycle simultaneous water quality reaching standard process.The present invention carries out poultry sewage primary separation of solid and liquid first, solid excrement slag after separation is recycled as organic fertilizer raw material nutrient outward transport sale processing synergy wound benefit or cropland application, science recycles breeding combination, urine, sewage, production and living after emission reduction is separated by solid-liquid separation retention flowed into successively with water regulating reservoir, be separated by solid-liquid separation biological deslagging device, black film methane-generating pit, composite reaction environmental protection pond, MBR membrane cisternas, ball algae processing pond carry out multistep treatment, the comprehensive processing of solid-liquid-gas is carried out in whole process to waste to utilize, specially:It forms methane for power generation or production and living, treated, and water carries out nutrient recycling, cropland application, and the excrement slag muck field being obtained by filtration carries out organic fertilizer recycling or cropland application, realizes recycling for the energy.Water, which chemically reacts, during treated reaches the discharge of standard time limit no pollution, and the feature of environmental protection is good.

Description

A kind of simultaneous water quality reaching standard process of poultry waste nutrient recycling
Technical field
The present invention relates to technical field of sewage more particularly to a kind of recycling of poultry waste nutrient and water quality reaching standard works Process.
Background technology
The aquaculture development in China is later, since reform and opening-up, with the continuous improvement of living standards of the people, to meat, egg, The demand of milk improves rapidly, and aquaculture is also grown rapidly therewith.However, while meeting people's lives and need, as livestock and poultry are supported Grow the continuous expansion of large-scale degree, the concentration of a large amount of Animal fecal pollution excreta generates, huddles and leaves about, and also brings increasingly prominent The environmental problem gone out.
It is estimated that the whole nation in 2016 generates about 3,800,000,000 tons of Animal fecal pollution, it has been that industry and life generate the several of waste Times.First time Pollutant source investigation data shows that in China's discharge of major pollutant amount, agricultural sources account for major part, wherein chemistry needs Oxygen amount(COD)Discharge capacity accounts for 46% of total amount or more, and nitrogen accounts for 50% or more, and phosphorus accounts for 60% or more, and Pollution from livestock and poultry object discharge capacity Account for 95% or more of entire agricultural sources.Livestock pollution has become the third-largest pollution after industrial pollution and domestic pollution, and The mating treatment facility of China's livestock and poultry breeding industry waste is few at present, handles low SI, and the farm of 90 % or more is not comprehensive Close using and waste water control facility, to the comprehensive utilization ratios of livestock and poultry feces but less than 60%.
Processed waste water of livestock poultry contains the nutrients such as a large amount of organic pollution materials, suspended matter and N, P, and a large amount of Pathogenic harmful levels of pathogens.Studies have shown that the biochemical oxygen demand of pig farm waste discharge(BOD5)Up to 2000~8000 Mg/litre.COD is up to 5000~20000 mg/litres.Such unprocessed direct emission of waste water, to big gas and water and soil Serious pollution will be caused, also has certain harm to the growth and development of people and other animals.
Swine manure wastewater belongs to the high concentrated organic wastewater rich in a large amount of pathogen, can be by rainwash impurely Table water, or permeated the ground polluted underground water by soil.Excessive organic matter can make body eutrophication in water, cause algae Overgrowing, water oxygen level decline, and so that water body is gone bad smelly, cause the aquatic organisms such as fish dead, and to the ecological environment around influencing It impacts.Swine manure wastewater permeates the ground, and NO3-N and NO2-N concentration in water body is made to increase, if people is long-term or a large amount of It drinks, there is the possibility for inducing cancer.In addition, pathogenic microorganism, parasitic ovum in swine manure wastewater and the mosquitos and flies multiplied, It may lead to certain epiphytotics propagation etc. with water flowing.
It can effectively be improved containing a large amount of sodium salt and sylvite if being thrown into farmland in right amount in swine manure wastewater Soil fertility reduces the usage amount of chemical fertilizer.But if unreasonable is excessively used for a long time, soil aperture can be caused to block, The gas permeability of soil, water penetration decline and soil hardening, salination are caused, soil texture is destroyed.Also can be crops generate excessive growth, It turns green, lodge, postpone phenomena such as maturity period, heavy losses are caused to the yield of crops.And the height added in animal and fowl fodder Copper, high ferro, high zinc etc. trace element excreted with fecaluria after, can accumulate in the soil, cause soil mineral element and Heavy metal pollution.
During livestock and poultry cultivation, in terms of the common disease of prevention livestock and poultry, the use of antibiotic and other drugs makes excrement There is certain residual in sewage, not only environment is adversely affected, can also make the drug resistance and variability of relevant pathogen It improves, causes the increase of dose or the update of drug.And the pathogen evolved not only can directly threaten the existence of livestock and poultry itself, also Human health can be seriously endangered.
The prior art includes to the main methods of livestock and poultry cultivation sewage:
Returning to the field facture
Swine manure wastewater is a kind of traditional, cost-effective method of disposal as fertilizer returning to the field, can make feces of livestock and poultry waste water most Big degree realizes recycling, substitutes part chemical fertilizer, increases soil fertility.But this processing mode is suitable for family casual household Breeding way, it is desirable that waste water will have enough farmland area carryings with preceding precipitation and the purification that pass through certain time.The party Method is unsuitable for extensive centralization-breeding factory application.
Natural facture
Natural facture is purified using the comprehensive function of the physics of natural water body, soil and biology, the principles of chemistry and biology Sewage.Its purification mechanism mainly has filtering, retention, precipitation, physical absorption, chemisorption, chemical breakdown, biological oxidation and life Object absorption etc..It is former that its principle is related to intergrowth of species principle in the ecosystem, substance principle of recycling and regeneration, structure and orthofunction Then, layered multi-stage retention, storage, utilization and conversion nutriment mechanism etc..Natural facture mainly utilizes land treatment system And the natural processing system such as artificial swamp handles waste water of livestock poultry, it is higher suitable for temperature and have beach, wasteland, forest land Or low-lying land can make sewage natural processing system, it is desirable that farm's scale is medium.
Materialization treatment process
Common materializing strategy technology has absorption method, flocculation sediment, electrochemical oxidation, Fenton oxidations etc..
Medium absorption method.The key of this method is to choose suitable adsorbing medium, is had to the nitrogen P elements in waste water of livestock poultry Machine object carries out absorption pretreatment, and common zeolite etc. is used as medium at present.Song Yong meetings et al. are using calcium type natural clinoptilolite to pig Field waste water carries out absorption pretreatment, and research finds that calcium type natural clinoptilolite respectively reaches the removal rate of ammonia nitrogen, phosphorus and COD 96 %, 97 % and 84 %.
Flocculent precipitation.Flocculent precipitation carries out magnetic flocculation separation reaction treatment pig farm and gives up by adding magnetic kind and flocculant Water, the technical matters flow is simple, settleability is good, process cycle is short.It is improved by injecting condensate increase solid flocculation object Solid-liquid separation efficiency, suspended solid can remove 97.6 %, 98.7 % of ammonia nitrogen, 95 % of total phosphorus etc..
Electrochemical oxidation process.Electrochemical method is that a kind of collection electroxidation and electroreduction act on the emerging water process skill of one Art can effectively remove organic matter and heavy metal.Using the method treatment scale Pig raising wastewater of electrolysis, to nitrogen phosphorus in waste water And the removal of organic matter shows good effect.
Fenton oxidizing process.Fenton oxidizing process is a kind of many places in the very promising waste water in laboratory research stage Treatment technology has greater advantage to the processing of hardly degraded organic substance.
Biological treatment
There are many farm's method for governing pollution, livestock breeding wastewater use which kind for the treatment of process, need to technical advantage, investment, The factors such as day-to-day operation expense, operation are considered.Most widely used at present is biological treatment, i.e., mainly by micro- The metabolic process of life of biology is converted into the organic matter in sewage the inorganic matter of simple form, to reach organics removal Purpose.Common technology of the biologic treating technique as current processing swine manure wastewater, includes mainly Aerobic biological process, anaerobism Biological treatment and combinations thereof handles three kinds of techniques.
Aerobic biological process.The basic principle of Aerobic Process for Treatment is to utilize microorganism decomposing organic matter under aerobic condition.It should The main series of process such as active sludge, biofilter, biological rotating disk, SBR and A/O of method.
Anaerobic bio-treated.Anaerobic Treatment method less energy consumption, low cost, organic loading is high, and it is organic to be suitable for processing high concentration The swine manure wastewater of object, common equipment have anaerobic baffled reactor, up-flow anaerobic sludge blanket, microbiological fuel cell Deng.
Anaerobic-aerobic group technology.Practice have shown that individual anaerobism or Aerobic Process for Treatment livestock breeding wastewater are unable to reach outside The standard of row, most of livestock and poultry farms use anaerobic-aerobic combination processing technique.Anaerobic-aerobic treatment method have small investment, The advantages that operating cost is low, good purification, high energy environment comprehensive benefit, particularly suitable for livestock and poultry farms in scale sewage Processing.
But there are one general character for the above processing method tool, i.e., just for poultry pollutant process, but do not consider that poultry pollutes Recycling while object processing, to turn waste into wealth, the effect of processing is not nor very fully, realize energy-saving ring fully It protects.
Invention content
In view of the drawbacks described above of the prior art, technical problem to be solved by the invention is to provide a kind of poultry wastes Nutrient recycling and water quality reaching standard process, so as to solve the deficiencies in the prior art.
To achieve the above object, the present invention provides a kind of poultry waste nutrients to recycle simultaneous water quality reaching standard process, Include the following steps:
1)Poultry waste shunts away through rain sewage diversion, rainwater via open channel, the fresh argol excrement bulky grain coarse granule of poultry, urine After mixed collection, the multistage solid-liquid separating machine filtering fowl and animal excrement of cleaned production, organic wastewater are separated by solid-liquid separation by emission reduction Urine, sewage, production and living after retention flow into regulating reservoir with water, and waste water acid-base value is adjusted;
2)It is separated by solid-liquid separation biological deslagging device and handles the urine for flowing into regulating reservoir, sewage, production and living water, generated using efficient The microorganism of biological flocculant carries out biological coagulation processing to waste, then using suspension all in separation of solid and liquid removal waste Object, the suspended matter after separation are used to produce the raw material of organic fertilizer, and microorganism reacts with waste, you can reach fully flocculation coagulation Effect;
3)Treated by being separated by solid-liquid separation biological deslagging device, and sewage enters back into sedimentation basin filters precipitating sludge sediment again, Anaerobic fermentation degradation is carried out to organic pollution into black film methane-generating pit, it is good subsequently into anoxic is carried out in composite reaction environmental protection pond Oxygen nitration denitrification acts on;
4)Sewage after the effect of Anoxic/Aerobic nitration denitrification passes through MBR membrane cisternas, after vertical sedimentation basin, into one Step disinfects laggard goal algae processing pond, after finally flowing into rear stage oxidation pond, is concentrated to fish pond, middle water circulating and recovering water The pool carries out mountain forest, field irrigation or Treated sewage reusing.
Further, the step 1)When waste water acid-base value is adjusted, urine therein, sewage, production and living It is stopped 6-12 hours with water.
Further, the step 2)The solid excrement slag of the biological deslagging device output of separation of solid and liquid be sent to stockyard and had Machine fertilizer nutrient recycles or cropland application.
Further, the step 2)Middle microorganism reacts with waste carries out 1~5h.
Further, the step 3)Middle composite reaction environmental protection pond includes sequentially connected level-one nitrification tank, the anti-nitre of level-one Change pond, two level nitrification tank, two level denitrification pond.
Further, dephosphorization agent, flocculant, coagulant is added in composite reaction environmental protection pond.
Further, the step 3)The sludge reflux of middle sedimentation basin to level-one nitrification tank, the sludge of sedimentation basin also passes through Sludge condensation is sent to stockyard and carries out organic fertilizer nutrient recycling or cropland application.
Further, the step 4)Ball algae processing pond in treated sewage after nutrient recycles, stop 2-3 Discharge after it is up to standard.
Further, the step 3)In black film methane-generating pit on the one hand generate bed mud and be discharged into antiseepage accident emergency pond, On the other hand it generates biogas and is input to the net air supply system of biogas for production and living use or marsh gas power generation.
Further, the step 4)In ball algae processing pond in treated sewage stop 1-2 two days later, after inflow The stair oxidation pool.
The beneficial effects of the invention are as follows:
The present invention carries out poultry sewage primary separation of solid and liquid first, the solid excrement slag after separation as organic fertilizer raw material nutrient outside Transportation and sales are sold processing synergy wound benefit and are recycled or cropland application, and science recycles breeding combination, is separated by solid-liquid separation and cuts by emission reduction Urine, sewage, production and living after staying flow into regulating reservoir with water, are separated by solid-liquid separation biological deslagging device, black film methane-generating pit, group successively The environmentally friendly pond of reaction, MBR membrane cisternas, ball algae processing pond progress multistep treatment are closed, it is comprehensive to carry out solid-liquid-gas to waste in whole process Processing utilizes, specially:It forms methane for power generation or production and living, treated, and water carries out nutrient recycling, cropland application, The excrement slag muck field being obtained by filtration carries out organic fertilizer recycling or cropland application, realizes recycling for the energy.During treated Water, which chemically reacts, reaches the discharge of standard time limit no pollution, and the feature of environmental protection is good.Entire process flow is efficient, it is environmentally friendly, energy saving, economical, Safety, efficiently solves the deficiencies in the prior art.
The technique effect of the design of the present invention, concrete structure and generation is described further below with reference to attached drawing, with It is fully understood from the purpose of the present invention, feature and effect.
Description of the drawings
Fig. 1 is flow chart of the method for the present invention.
Specific implementation mode
As shown in Figure 1, a kind of poultry waste nutrient recycling and water quality reaching standard process, include the following steps:
1)Poultry waste shunts away through rain sewage diversion, rainwater via open channel, the fresh argol excrement bulky grain coarse granule of poultry, urine After mixed collection, the multistage solid-liquid separating machine filtering fowl and animal excrement of cleaned production, organic wastewater are separated by solid-liquid separation by emission reduction Urine, sewage, production and living after retention flow into regulating reservoir with water, and waste water acid-base value is adjusted;
2)It is separated by solid-liquid separation biological deslagging device and handles the urine for flowing into regulating reservoir, sewage, production and living water, generated using efficient The microorganism of biological flocculant carries out biological coagulation processing to waste, then using suspension all in separation of solid and liquid removal waste Object, the suspended matter after separation are used to produce the raw material of organic fertilizer, and microorganism reacts with waste, you can reach fully flocculation coagulation Effect;
3)Treated by being separated by solid-liquid separation biological deslagging device, and sewage enters back into sedimentation basin filters precipitating sludge sediment again, Anaerobic fermentation degradation is carried out to organic pollution into black film methane-generating pit, it is good subsequently into anoxic is carried out in composite reaction environmental protection pond Oxygen nitration denitrification acts on;
4)Sewage after the effect of Anoxic/Aerobic nitration denitrification passes through MBR membrane cisternas, after vertical sedimentation basin, into one Step disinfects laggard goal algae processing pond, after finally flowing into rear stage oxidation pond, is concentrated to fish pond, middle water circulating and recovering water The pool carries out mountain forest, field irrigation or Treated sewage reusing.
In the present embodiment, the step 1)When waste water acid-base value is adjusted, urine therein, sewage, production life Water is applied flexibly to stop 6-12 hours.
In the present embodiment, the step 2)The solid excrement slag of the biological deslagging device output of separation of solid and liquid be sent to stockyard progress Organic fertilizer nutrient recycling or cropland application.
In the present embodiment, the step 2)Middle microorganism reacts with waste carries out 1~5h.
In the present embodiment, the step 3)Middle composite reaction environmental protection pond includes that sequentially connected level-one nitrification tank, level-one are anti- Nitrification tank, two level nitrification tank, two level denitrification pond.Nitrification tank carries out aerobic nitrification processing, and the aerobic bacteria in digester utilizes Dissolved organic matter in sewage carries out the metabolism of itself, converts it into what the form of CO2 and H2O released.Nitre Change process is under the action of nitrifier, is nitrate nitrogen by mineralized nitrogen, and the mixed liquor after nitrification processing automatically flows into again Enter in denitrification pond, the mixed liquor after nitrification processing enters denitrification pond, this stage activated sludge is no molecular oxygen the case where Under, it is breathed using the oxygen in nitric acid and nitrite ion, nitrate nitrogen is made to be evaporated into air in the form of nitrogen.Waste water It is mainly denitrogenation dephosphorizing etc. in the composite drug reaction tank of nitration denitrification pond.In addition, composite reaction environmental protection pond addition dephosphorization agent, Flocculant, coagulant make the nutrient pollution factor in sewage further decline under the collective effect of composite chemical medicament.
In the present embodiment, the step 3)The sludge reflux of middle sedimentation basin to level-one nitrification tank, the sludge of sedimentation basin also passes through It crosses sludge condensation and is sent to the organic fertilizer nutrient recycling of stockyard progress or cropland application.Sediment in sewage is in hydraulic pressure gravity Under, carry out some reflowable front end to nitrification tank of high concentration sludge that the separation of solid and liquid of muddy water precipitates, cycle down The organic matter in waste water is solved, some is delivered to sludge concentration tank after precipitating, carry out press filtration and press dry solarization slag compost treatment.
In the present embodiment, the step 4)Ball algae processing pond in treated sewage after nutrient recycles, stop Rear discharge up to standard in 2-3 days.
In the present embodiment, the step 3)In black film methane-generating pit on the one hand generate bed mud and be discharged into antiseepage accident emergency On the other hand pond generates biogas and is input to the net air supply system of biogas for production and living use or marsh gas power generation.Antiseepage accident is answered Under special circumstances, there is sewerage and the accidents such as is not normally functioning in anxious pond(Such as have a power failure, machinery maintenance)When, it can deposit Waste water is stored up to ensure sewage not aerial drainage, has ensured the operational safety of wastewater treatment facility.The net air supply system of biogas includes that desulfurization dewatering is set Standby, purification filtering equipment, burner, supercharging machine equipment etc., treated, and biogas send to generating set power generation or is used as life Combustion gas.
In the present embodiment, the step 4)In ball algae processing pond in treated sewage stop 1-2 two days later, flow into Rear stage oxidation pond.
Operation principle of the present invention is specially:
Poultry waste shunts away through rain sewage diversion, rainwater via open channel, the fresh argol excrement bulky grain coarse granule of poultry, urine etc. Fowl and animal excrement organic wastewater is filtered through clean manufacturing multistage solid-liquid separating machine after mixed collection, substantially reduces the negative of subsequent technique Lotus, solid excrement slag is recycled as organic fertilizer raw material nutrient outward transport sale processing synergy wound benefit or cropland application, science cycle It is combined using breeding, the urine, sewage, production and living water after emission reduction is separated by solid-liquid separation retention flow into regulating reservoir, waste water Acid-base accommodation, according to farm's scale design regulating reservoir size and residence time.
It is separated by solid-liquid separation biological deslagging device, device biology slagging-off oxidation technology is then that one kind can be achieved rapidly and efficiently to handle The technique of waste waste water, the technological principle are carried out at biological coagulation to waste using the efficient microorganism for generating biological flocculant Reason, then using suspended matter all in removal waste is separated by solid-liquid separation, the suspended matter after separation can be used for producing the original of organic fertilizer Material, microorganism reacts with waste carries out 1~5h, you can has the function that the coagulation that fully flocculates.
Sewage enters back into sedimentation basin and filters precipitating sludge sediment again, is detested into black film methane-generating pit organic pollution Aerobe fermentation is degraded.Black film biogas pool volume is big, and dwell time of sewage is long, and microorganism has enough times of contact to carry out instead with sewage Answer, to the organic matter in sewage of degrading to a greater extent, and generate biogas, reach the minimizing of sewage, recycling with it is harmless The purpose of change lightens the load for successive depths processing.It is biodegradable into COD, BOD in black film methane-generating pit treated sewage Pollutant concentration declines 80%.
Then, into progress Anoxic/Aerobic nitration denitrification effect in composite reaction environmental protection pond, dephosphorization agent, mixes flocculant Under the collective effects of composite chemicals medicament such as solidifying agent, the nutrient pollution factor in sewage is made further to decline, secondary sedimentation tank, Sludge-tank, spoil disposal pond, filter press concentration machine make mud-water separation, pollutant further decline.By MBR membrane cisternas, using perpendicular stream The water of formula sedimentation basin post-processing can further disinfect laggard goal algae processing pond, after flowing into rear stage oxidation pond, concentrate Pool etc., processing Water Spreading to mountain forest meadow, sewage zero-discharge are increased newly to fish pond, middle water circulating and recovering.
The preferred embodiment of the present invention has been described in detail above.It should be appreciated that those skilled in the art without It needs creative work according to the present invention can conceive and makes many modifications and variations.Therefore, all technologies in the art Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea Technical solution, all should be in the protection domain being defined in the patent claims.

Claims (10)

1. a kind of poultry waste nutrient recycling and water quality reaching standard process, which is characterized in that include the following steps:
1)Poultry waste shunts away through rain sewage diversion, rainwater via open channel, the fresh argol excrement bulky grain coarse granule of poultry, urine After mixed collection, the multistage solid-liquid separating machine filtering fowl and animal excrement of cleaned production, organic wastewater are separated by solid-liquid separation by emission reduction Urine, sewage, production and living after retention flow into regulating reservoir with water, and waste water acid-base value is adjusted;
2)It is separated by solid-liquid separation biological deslagging device and handles the urine for flowing into regulating reservoir, sewage, production and living water, generated using efficient The microorganism of biological flocculant carries out biological coagulation processing to waste, then using suspension all in separation of solid and liquid removal waste Object, the suspended matter after separation are used to produce the raw material of organic fertilizer, and microorganism reacts with waste, you can reach fully flocculation coagulation Effect;
3)Treated by being separated by solid-liquid separation biological deslagging device, and sewage enters back into sedimentation basin filters precipitating sludge sediment again, Anaerobic fermentation degradation is carried out to organic pollution into black film methane-generating pit, it is good subsequently into anoxic is carried out in composite reaction environmental protection pond Oxygen nitration denitrification acts on;
4)Sewage after the effect of Anoxic/Aerobic nitration denitrification passes through MBR membrane cisternas, after vertical sedimentation basin, into one Step disinfects laggard goal algae processing pond, after finally flowing into rear stage oxidation pond, is concentrated to fish pond, middle water circulating and recovering water The pool carries out mountain forest, field irrigation or Treated sewage reusing.
2. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 1)When waste water acid-base value is adjusted, urine therein, sewage, production and living are stopped 6-12 hours with water.
3. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 2)The solid excrement slag of the biological deslagging device output of separation of solid and liquid be sent to stockyard and carry out organic fertilizer nutrient recycling or also Field utilizes.
4. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 2)Middle microorganism reacts with waste carries out 1~5h.
5. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 3)Middle composite reaction environmental protection pond includes sequentially connected level-one nitrification tank, level-one denitrification pond, two level nitrification tank, two level Denitrification pond.
6. a kind of poultry waste nutrient recycling as claimed in claim 5 and water quality reaching standard process, it is characterised in that:Institute It states composite reaction environmental protection pond and dephosphorization agent, flocculant, coagulant is added.
7. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 3)The sludge reflux of middle sedimentation basin to level-one nitrification tank, the sludge of sedimentation basin is also sent to stockyard by sludge condensation and carries out Organic fertilizer nutrient recycling or cropland application.
8. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 4)Ball algae processing pond in treated sewage after nutrient recycles, stop 2-3 days it is up to standard after discharge.
9. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that:Institute State step 3)In black film methane-generating pit on the one hand generate bed mud and be discharged into antiseepage accident emergency pond, on the other hand generate biogas input To the net air supply system of biogas for production and living use or marsh gas power generation.
10. a kind of poultry waste nutrient recycling as described in claim 1 and water quality reaching standard process, it is characterised in that: The step 4)In ball algae processing pond in treated sewage stop 1-2 two days later, flow into rear stage oxidation pond.
CN201810437182.7A 2018-05-09 2018-05-09 A kind of simultaneous water quality reaching standard process of poultry waste nutrient recycling Pending CN108640453A (en)

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