CN107417043A - A kind of system and method for zero-emission bi-membrane method processing animal farm wastewater - Google Patents

A kind of system and method for zero-emission bi-membrane method processing animal farm wastewater Download PDF

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Publication number
CN107417043A
CN107417043A CN201710676610.7A CN201710676610A CN107417043A CN 107417043 A CN107417043 A CN 107417043A CN 201710676610 A CN201710676610 A CN 201710676610A CN 107417043 A CN107417043 A CN 107417043A
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membrane assembly
outlet
solid
charging aperture
liquid
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应悦
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Quzhou Membrane Environmental Protection Technology Co Ltd
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Quzhou Membrane Environmental Protection Technology Co Ltd
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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
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F3/00—Fertilisers from human or animal excrements, e.g. manure
    • C05F3/06—Apparatus for the manufacture
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
    • C05G5/00—Fertilisers characterised by their form
    • C05G5/20—Liquid fertilisers
    • C05G5/23—Solutions
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/441—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by reverse osmosis
    • 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
    • C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
    • C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
    • 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
    • C02F1/58—Treatment of water, waste water, or sewage by removing specified dissolved compounds
    • C02F1/586—Treatment of water, waste water, or sewage by removing specified dissolved compounds by removing ammoniacal nitrogen
    • 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
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • 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
    • 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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Manufacturing & Machinery (AREA)
  • Fertilizers (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The present invention proposes a kind of system and method for zero-emission bi-membrane method processing animal farm wastewater, including excrement dirt solid-liquid separator, Gu Fenfajiaota, anaerobic pond, mechanical filter, hyperfiltration membrane assembly and reverse osmosis membrane assembly；Excrement dirt solid-liquid separator charging aperture is connected with feces of farm pond, liquid dirt discharging opening is connected with anaerobic pond charging aperture, it is connected Gu excrement exports with solid manure fermentation tower charging aperture, anaerobic pond discharging opening is connected with mechanical filter charging aperture, the outlet of mechanical filter biogas slurry is connected with hyperfiltration membrane assembly, biogas residue exports to be connected with solid manure fermentation tower charging aperture, biogas slurry import on hyperfiltration membrane assembly connects with biogas slurry outlet, the outlet of first concentrated water is connected with mechanical filter charging aperture, first clear water output is connected with reverse osmosis membrane assembly inlet, there are the second clear water output and the outlet of the second concentrated water on reverse osmosis membrane assembly, utilize membrane separation technique or embrane method integrated technology processing sewage of farm, realize zero-emission, with efficiency high, technological process is short, invest small, the advantages that automation can be achieved.

Description

A kind of system and method for zero-emission bi-membrane method processing animal farm wastewater
Technical field
The invention belongs to technical field of sewage, particularly relate to a kind of zero-emission bi-membrane method processing animal farm wastewater is System and its method.
Background technology
Poultry industry is the important component of China's agricultural and rural economy, as aquaculture industry of China develops rapidly, cultivation Waste water arbitrarily discharge in field causes culture zone, and nearby environmental pollution phenomenon increasingly frequently occurs, and not only influences economic development, but also Jeopardize ecological safety, directly affects the health of people and normal production and living, it has also become the society of people's common concern Problem.It is very high containing a large amount of polluters, its pollutional load in livestock and poultry farm raw sewerage.This high concentration has Machine waste water is directly discharged into river,lake and reservior, and water body blackening can be made smelly, cause body eutrophication, causes aquatile dead, sternly Severe one causes fish pond and river to lose and use function.Aquaculture wastewater permeates the ground for a long time, makes the nitrate nitrogen in underground water or Asia Nitrate increases, and underground water dissolved oxygen content is reduced, and toxic component increases, and causes water quality deterioration, or even lose its use Function, while jeopardize periphery domestic water water quality.High-concentration sewage can also result in soil aperture blocking, cause Soil ventilation, thoroughly Water-based decline and hardened, salinization, soil quality, or even injury crops are seriously reduced, cause the underproduction and death.At present, livestock and poultry The sewage of aquaculture has been significantly larger than pollution caused by sanitary sewage and industrial wastewater, and also has rise to a certain extent Space.For conventional process there is investment is big, qualified discharge is unstable, operating cost is relatively high, general aquaculture industry is difficult to hold By relatively high expense.According to aquaculture industry of China current situation, green, the energy-efficient wastewater processing technology of development, promote Enter utilization of waste as resource, livestock and poultry breeding industry sustainable and healthy development could be promoted.
Membrane separation technique is that occur in early 20th century, the separation technology to be emerged rapidly after the 1960s.Film Isolation technics (MembraneSeparationTechnology) passes through film as separating medium using selectivity, when film both sides have certain During kind motive force (such as pressure differential, concentration difference, potential difference), film is passed through, to reach separation, purification feed side compositional selecting Purpose.Membrane separation technique is considered as one of preferable isolation technics with its low energy consumption, high efficiency.Due to its have concurrently separation, Concentration, purifying and refined function, have again efficiently, energy-saving and environmental protection, molecular level filtering and filter process it is simple, easily controllable etc. Feature, therefore, food, medicine, biology, environmental protection, chemical industry, metallurgy, the energy, oil, water process, electricity is widely used at present The field such as sub, bionical, generate huge economic benefit and social benefit, it has also become most important means in current separation science One of.
Membrane separation technique is a kind of novel fluid separative element operating technology using polymeric membrane for separation as representative.From material Angle, film can be divided into organic, inorganic and organic and inorganic mixing；According to membrane structure, symmetric membrane and not can be divided into again Symmetric membrane；By separation principle, membrane separation technique is divided into micro-filtration (MF), ultrafiltration (UF), dialysis (D), electrodialysis (ED), nanofiltration (NF) With counter-infiltration (RO), pervaporation (PV) etc..Before UF membrane appearance, existing many isolation technics obtain extensively should in production With.Such as：Distillation, absorption, absorption, extraction, cryogenic separation etc..Compared with these traditional isolation technics, UF membrane have with Lower feature：(1) UF membrane is typically an efficient separation process；(2) energy consumption (power consumption) of membrane separating process is generally than relatively low. The change of " phase " does not occur for most of membrane separating process；(3) operating temperature of most membrane separating process is near room temperature, especially Suitable for the processing to hot allergin；(4) membrane separation plant is again attached in room temperature without the part of motion, operating temperature in itself Closely, so seldom needing to safeguard, reliability is very high；(5) scale of membrane separating process and disposal ability can become in very large range Change, and its efficiency, equipment unit price, operating cost etc. all change less；(6) UF membrane is due to separative efficiency height, usual equipment Volume it is smaller, take up an area it is less.And UF membrane is generally directly inserted into the existing technological process of production, it is not necessary to life Producing line carries out big change..
The content of the invention
The present invention proposes a kind of system and method for zero-emission bi-membrane method processing animal farm wastewater, using tradition and modernity The method being combined, bi-membrane method is incorporated among the processing of animal farm wastewater, utilizes membrane separation technique or embrane method integrated technology Handle sewage of farm, can not only qualified discharge, zero-emission can be realized with waste water recycling, to solve existing Wastewater Treatment Technology Art investment is big, treatment effeciency is low, technological process is long, difficult control is unstable, using it is dumb, floor space is big, operating cost phase To it is high the problems such as.
The technical proposal of the invention is realized in this way：
A kind of system of zero-emission bi-membrane method processing animal farm wastewater, including for separating the excrement that solid excrement is dirty with liquid in excrement dirt Dirty solid-liquid separator；And Gu Fenfajiaota of the solid manure fermentation into compost after confession separation；And detest for what liquid dirt after separation was fermented Oxygen pond；And the mechanical filter for the biogas slurry exported from anaerobic pond to be filtered, hyperfiltration membrane assembly and reverse osmosis membrane group Part；Charging aperture, liquid dirt discharging opening and solid excrement outlet, the charging aperture and plant's excrement are provided with the excrement dirt solid-liquid separator Dirty pond is connected, and the liquid dirt discharging opening is connected with anaerobic pond charging aperture, and the solid excrement outlet is connected with solid manure fermentation tower charging aperture, The anaerobic pond discharging opening is connected with mechanical filter charging aperture, and biogas slurry outlet and biogas residue are additionally provided with the mechanical filter Outlet, the biogas slurry outlet are connected with hyperfiltration membrane assembly, and the biogas residue outlet is connected with solid manure fermentation tower charging aperture, the ultrafiltration Biogas slurry import, the outlet of the first concentrated water and the first clear water output are provided with membrane module, the biogas slurry import connects with biogas slurry outlet, The first concentrated water outlet is connected with mechanical filter charging aperture, and the first clear water output is connected with reverse osmosis membrane assembly inlet, The second clear water output and the outlet of the second concentrated water are additionally provided with reverse osmosis membrane assembly, second clear water output is defeated for pure water Outlet, pure water can reuse to plant's industrial water, the outlet of the second concentrated water exports for organic fertilizer, and organic fertilizer can be used for agriculture The fertilising of crop, solid fertilizer outlet is provided with the Gu Fenfajiaota, and organic solid fertilizer is exported by solid fertilizer and discharged.
Further, the first pump is connected between the mechanical filter and hyperfiltration membrane assembly, first pump inlet connects The biogas slurry outlet of mechanical filter is connect, the first pump discharge is connected with the import of hyperfiltration membrane assembly.
Further, the second pump, second pump inlet are connected between the hyperfiltration membrane assembly and reverse osmosis membrane assembly The first clear water output of hyperfiltration membrane assembly is connected, the second pump discharge is connected with the import of reverse osmosis membrane assembly.
Further, the Gu Fenfajiaota connections odor removal.
A kind of method of zero-emission bi-membrane method processing animal farm wastewater, comprises the following steps：
S1：Excrement dirt in feces of farm pond is passed through in excrement dirt solid-liquid separator and separated, and it is dirty with liquid to obtain solid excrement；
S2：Isolated solid excrement, which is put into solid manure fermentation tower, to ferment, and turns into organic solid fertilizer after deodorizing process；
S3：Isolated liquid dirt is passed through anaerobic pond, is changed into biogas residue liquid and biogas under microbial action；
S4：The biogas residue liquid obtained in step S3 after Anaerobic Treatment is separated into biogas residue and biogas slurry by mechanical filter；
S5：In the solid manure fermentation tower of biogas residue input isolated in step S4, step S2 processing is carried out；
S6：The biogas slurry isolated in step S4 adds and removes ammonia agent, by the first pumping to hyperfiltration membrane assembly, obtains the first clear water With the first concentrated water, the first concentrated water returns to mechanical filter charging aperture, and the first clear water is by the second pumping to reverse osmosis membrane assembly；
S7：From isolated second clear water of reverse osmosis membrane assembly and the second concentrated water, the second clear water is pure water, is communicated to foster Grow industrial water；Second concentrated water is organic fertilizer, realizes zero-emission.
Further, it is described except ammonia agent is magnesium sulfate, magnesium chloride, ferric sulfate, iron chloride, ferrous sulfate, disodium hydrogen phosphate In one or more combination.
In summary, the advantage of the invention is that：
The system and method for a kind of zero-emission bi-membrane method processing animal farm wastewater of the present invention, by hyperfiltration membrane assembly and instead The combined treatment Technology application of permeable membrane element is in plant's biogas slurry treatment, the compost category organic solid fertilizer of acquisition, Liquid Fertilizer Belong to organic liquid fertilizer, be used equally for Crops in Applying Fertilizer；Water purification can be used as plant's industrial water, utilize membrane separation technique or embrane method Integrated technology handle sewage of farm, can not only qualified discharge, zero-emission can be realized with waste water recycling, there is treatment effeciency It is high, technological process is short, easy to control, using flexible, the advantages that floor space is small, investment is small, production can be achieved to automate.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is the principle framework figure for the system that a kind of zero-emission bi-membrane method of the present invention handles animal farm wastewater.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made Embodiment, belong to the scope of protection of the invention.
Embodiment 1
As shown in figure 1, a kind of system of zero-emission bi-membrane method processing animal farm wastewater, including for separating solid excrement in excrement dirt The dirty excrement dirt solid-liquid separator 1 with liquid；And solid manure fermentation tower 2 of the solid manure fermentation into compost after confession separation；And after supplying separation The anaerobic pond 3 of the dirty fermentation of liquid；And the mechanical filter 4 for the biogas slurry exported from anaerobic pond to be filtered, milipore filter group Part 5 and reverse osmosis membrane assembly 6；Charging aperture, liquid dirt discharging opening and solid excrement outlet, institute are provided with the excrement dirt solid-liquid separator 1 State charging aperture with feces of farm pond to be connected, the liquid dirt discharging opening is connected with the charging aperture of anaerobic pond 3, described to consolidate excrement outlet and consolidate The charging aperture of manure fermentation tower 2 is connected, and the discharging opening of anaerobic pond 3 is connected with the charging aperture of mechanical filter 4, the mechanical filter 4 On be additionally provided with biogas slurry outlet and biogas residue outlet, biogas slurry outlet is connected with hyperfiltration membrane assembly 5, the biogas residue outlet and admittedly excrement The charging aperture of fermentation tower 2 is connected, and biogas slurry import, the outlet of the first concentrated water and the first clear water output are provided with the hyperfiltration membrane assembly 5, The biogas slurry import connects with biogas slurry outlet, and the first concentrated water outlet is connected with mechanical filter charging aperture, the first Graceful Mouth is connected with the inlet of reverse osmosis membrane assembly 6, and the second clear water output is additionally provided with reverse osmosis membrane assembly 6 and the second concentrated water goes out Mouthful, second clear water output is the delivery outlet of pure water, pure water can reuse to plant's industrial water, the outlet of the second concentrated water Being exported for organic fertilizer, organic fertilizer can be used for the fertilising of crops, and solid fertilizer outlet is provided with the solid manure fermentation tower 2, Organic solid fertilizer is exported by solid fertilizer and discharged, and is connected with the first pump 7 between the mechanical filter and hyperfiltration membrane assembly, and described the The biogas slurry outlet of one pump inlet connection mechanical filter, the first pump discharge are connected with the import of hyperfiltration membrane assembly, the milipore filter The second pump 8, the first Graceful of the second pump inlet connection hyperfiltration membrane assembly are connected between component and reverse osmosis membrane assembly Mouthful, the second pump discharge is connected with the import of reverse osmosis membrane assembly, the Gu Fenfajiaota connections odor removal.
A kind of method of zero-emission bi-membrane method processing animal farm wastewater, comprises the following steps：
S1：Excrement dirt in feces of farm pond is passed through in excrement dirt solid-liquid separator and separated, and it is dirty with liquid to obtain solid excrement；
S2：Isolated solid excrement, which is put into solid manure fermentation tower, to ferment, and turns into organic solid fertilizer after deodorizing process；
S3：Isolated liquid dirt is passed through anaerobic pond, is changed into biogas residue liquid and biogas under microbial action；
S4：The biogas residue liquid obtained in step S3 after Anaerobic Treatment is separated into biogas residue and biogas slurry by mechanical filter；
S5：In the solid manure fermentation tower of biogas residue input isolated in step S4, step S2 processing is carried out；
S6：The biogas slurry isolated in step S4 adds and removes ammonia agent, by the first pumping to hyperfiltration membrane assembly, obtains the first clear water With the first concentrated water, the first concentrated water returns to mechanical filter charging aperture, and the first clear water is by the second pumping to reverse osmosis membrane assembly；
S7：From isolated second clear water of reverse osmosis membrane assembly and the second concentrated water, the second clear water is pure water, is communicated to foster Grow industrial water；Second concentrated water is organic fertilizer, realizes zero-emission, described except ammonia agent is magnesium sulfate, magnesium chloride, ferric sulfate, chlorine Change the one or more combination in iron, ferrous sulfate, disodium hydrogen phosphate.
Implementation result：
Certain pig farm day discharge excrement dirt 120m3, pass through the zero-emission sewage water treatment method of bi-membrane method processing sewage of farm And the processing of device, after the system enters steady operational status, 11 tons of daily output organic solid fertilizer, with 600 yuan per ton of valency Lattice are sold to peasant household as farmland organic solid fertilizer；Produce 19 tons of Liquid Fertilizer daily, with 190 yuan/ton, be sold to peasant household as ecological fruits and vegetables garden Liquid fertilizer；98 tons of pure water is reclaimed, as pig farm breeding production water；Sewage zero-discharge really is realized, and is created considerable Income.
Organic solid fertilizer index, the organic liquid fertilizer index of plant's before processing excrement dirt index and output after processing：
1st, feces of farm index table；
Organic matter 15%
Nitrogen 0.5%
Phosphorus 0.45%
Potassium 0.35%
2nd, the second clear water desired value and the second concentrated water desired value after handling；
1) the second clear water desired value
Turbidity 0.93NTU
Stink Nothing
Total plate count 88CFU/mL
Total coli group Do not detect
Chemical oxygen consumption (COC) (CODMnMethod, with O2Meter) 12mg/L
Calcium ions and magnesium ions concentration 221ppm
Arsenic 0.01mg/L
Cadmium 0.005mg/L
Chromium (sexavalence) 0.05mg/L
Lead 0.01mg/L
Mercury 0.001mg/L
2) the second concentrated water desired value
Organic matter 250g/L
Total nutrient (nitrogen+phosphorus pentoxide+potassium oxide) 40g/L
Water not tolerant 50g/L
Acid-base value (1:250 dilutions) pH 7.3
3rd, organic solid fertilizer index
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.

Claims (6)

  1. A kind of 1. system of zero-emission bi-membrane method processing animal farm wastewater, it is characterised in that：Including for separating solid excrement in excrement dirt The dirty excrement dirt solid-liquid separator with liquid；And Gu Fenfajiaota of the solid manure fermentation into compost after confession separation；And for liquid after separation The anaerobic pond of dirt fermentation；And the mechanical filter for the biogas slurry exported from anaerobic pond to be filtered, hyperfiltration membrane assembly and Reverse osmosis membrane assembly；Charging aperture, liquid dirt discharging opening and solid excrement outlet, the charging aperture are provided with the excrement dirt solid-liquid separator It is connected with feces of farm pond, the liquid dirt discharging opening is connected with anaerobic pond charging aperture, the solid excrement outlet and Gu Fenfajiaota Charging aperture is connected, and the anaerobic pond discharging opening is connected with mechanical filter charging aperture, and natural pond is additionally provided with the mechanical filter Liquid exports and biogas residue outlet, and the biogas slurry outlet is connected with hyperfiltration membrane assembly, the biogas residue outlet and solid manure fermentation tower charging aperture Be connected, be provided with the hyperfiltration membrane assembly biogas slurry import, the first concentrated water outlet and the first clear water output, the biogas slurry import with Biogas slurry outlet connection, the first concentrated water outlet are connected with mechanical filter charging aperture, the first clear water output and reverse osmosis membrane group Part inlet is connected, and the second clear water output and the outlet of the second concentrated water, second Graceful are additionally provided with reverse osmosis membrane assembly Mouthful be the delivery outlet of pure water, pure water can reuse to plant's industrial water, the outlet of the second concentrated water exports for organic fertilizer, has Machine liquid fertilizer can be used for the fertilising of crops, solid fertilizer outlet is provided with the Gu Fenfajiaota, organic solid fertilizer is by solid fertilizer Outlet discharge.
  2. A kind of 2. system of zero-emission bi-membrane method processing animal farm wastewater according to claim 1, it is characterised in that：It is described The first pump is connected between mechanical filter and hyperfiltration membrane assembly, the biogas slurry of the first pump inlet connection mechanical filter goes out Mouthful, the first pump discharge is connected with the import of hyperfiltration membrane assembly.
  3. 3. a kind of system of zero-emission bi-membrane method processing animal farm wastewater according to claim 3, the hyperfiltration membrane assembly The second pump is connected between reverse osmosis membrane assembly, second pump inlet connects the first clear water output of hyperfiltration membrane assembly, the Two pump discharges are connected with the import of reverse osmosis membrane assembly.
  4. 4. a kind of system of zero-emission bi-membrane method processing animal farm wastewater according to claim 1, the Gu Fenfajiaota Connect odor removal.
  5. A kind of 5. method of zero-emission bi-membrane method processing animal farm wastewater, it is characterised in that：Methods described comprises the following steps：
    S1：Excrement dirt in feces of farm pond is passed through in excrement dirt solid-liquid separator and separated, and it is dirty with liquid to obtain solid excrement；
    S2：Isolated solid excrement, which is put into solid manure fermentation tower, to ferment, and turns into organic solid fertilizer after deodorizing process；
    S3：Isolated liquid dirt is passed through anaerobic pond, is changed into biogas residue liquid and biogas under microbial action；
    S4：The biogas residue liquid obtained in step S3 after Anaerobic Treatment is separated into biogas residue and biogas slurry by mechanical filter；
    S5：In the solid manure fermentation tower of biogas residue input isolated in step S4, step S2 processing is carried out；
    S6：The biogas slurry isolated in step S4 adds and remove ammonia agent, by the first pumping to hyperfiltration membrane assembly, the first clear water of acquisition and the One concentrated water, the first concentrated water return to mechanical filter charging aperture, and the first clear water is by the second pumping to reverse osmosis membrane assembly；
    S7：From isolated second clear water of reverse osmosis membrane assembly and the second concentrated water, the second clear water is pure water, is communicated to cultivation life Fisheries water；Second concentrated water is organic fertilizer, realizes zero-emission.
  6. A kind of 6. method of zero-emission bi-membrane method processing animal farm wastewater according to claim 5, it is characterised in that：It is described Except ammonia agent is the one or more combination in magnesium sulfate, magnesium chloride, ferric sulfate, iron chloride, ferrous sulfate, disodium hydrogen phosphate.
CN201710676610.7A 2017-08-09 2017-08-09 A kind of system and method for zero-emission bi-membrane method processing animal farm wastewater Pending CN107417043A (en)

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CN109052862A (en) * 2018-09-09 2018-12-21 高节义 Ice cream factory zero emission of wastewater treatment facility
CN110950504A (en) * 2019-12-27 2020-04-03 李占川 Farm excrement treatment system and corresponding treatment method
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CN113698033A (en) * 2021-08-19 2021-11-26 秦皇岛市思嘉特专用汽车制造有限公司 Livestock and poultry manure recycling treatment system and treatment method
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CN107902846A (en) * 2017-12-12 2018-04-13 湖南德人牧业科技有限公司 A kind of livestock and poultry dung recovery Application way
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CN112876324A (en) * 2021-01-29 2021-06-01 南京灿友嘉环境科技有限公司 High-speed active fertilizer-making process water solution resource treatment method
CN113698033A (en) * 2021-08-19 2021-11-26 秦皇岛市思嘉特专用汽车制造有限公司 Livestock and poultry manure recycling treatment system and treatment method
CN114538968A (en) * 2022-01-11 2022-05-27 济南槐荫尘峰环保技术开发中心 Method for resource utilization of excrement

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