CN104743747A - Hoggery waste treatment device and method - Google Patents
Hoggery waste treatment device and method Download PDFInfo
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- CN104743747A CN104743747A CN201510118827.7A CN201510118827A CN104743747A CN 104743747 A CN104743747 A CN 104743747A CN 201510118827 A CN201510118827 A CN 201510118827A CN 104743747 A CN104743747 A CN 104743747A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/20—Sludge processing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention relates to a hoggery waste treatment device and method. The device comprises a wastewater treatment system, a solid waste treatment system and an odor treatment system, wherein the waste water treatment system comprises a wastewater collection tank, a packing type anoxic and anaerobic reaction tank, a waste water regulating tank, an aerobic contact oxidation tank, a secondary sedimentation tank, a contraflow aeration biofilter and a clean-water reservoir; the solid waste treatment system comprises a solid waste mixing tank and a compost tank; and the odor treatment system comprises an odor collection pipe, a fan and an odor alkaline absorption tank. Waste water is treated and enters the clean-water reservoir for recycling, solid waste is composted and used as agricultural fertilizer, pollutants in odor performs chemical reaction with alkali liquor after the odor enters the odor alkaline absorption tank, and the odor is treated into clean gas to realize standard emission.
Description
Technical field
The present invention relates to environmental technology field, be specifically related to a kind of pig farm waste treatment apparatus and method.
Background technology
Pig farm both produced the solid pollutants such as ight soil in operational process, also had the waste water such as urine, wash-down water, also produced the atmospheric polluting materials such as foul smell simultaneously.The pollutent on pig farm all may produce environment in links such as collection, storage, transport, process, utilizations and pollute, deal carefully with disposal if can not get and will cause threat greatly and harm to water body, air, soil and HUMAN HEALTH, huge negative impact is brought to the Sustainable development of pig industry self.
Piggery wastewater can cropland application or adopt nature treatment system to process, but these two kinds of tupes all need a large amount of soil, be subject to China to have a large population and a few land the restriction of these national conditions, industrial treatment pattern is the inevitable choice of the limited regional Process for Treatment of Swine Wastewater in soil, in industrial treatment pattern, adopt aerobic process directly to process the investment of piggery wastewater and working cost all very high, what current employing was more is anaerobic-aerobic combination process, and anaerobic-aerobic combination process process Process for Treatment of Swine Wastewater poor effect, reason is mainly: in anaerobic digestion process, each contaminant degradation is asynchronous, anaerobic digestion solution biodegradability is caused to reduce and carbon, nitrogen, phosphorus out of proportion, have impact on the microorganism growth in aerobic treatment, lack easily biodegradable organics in concurrent anaerobic digestion liquid and cause denitrification weak effect, the basicity produced can not make up the basicity that nitrifying process consumes, and pH value declines and causes aerobic treatment system performance degradation.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve a difficult problem for problem of environmental pollution that above-mentioned pig farm produces in operational process and anaerobic-aerobic combination process process Process for Treatment of Swine Wastewater poor effect, the invention provides a kind of pig farm waste treatment apparatus and method.
The technical solution adopted for the present invention to solve the technical problems is: a kind of pig farm waste treatment apparatus, comprises Waste Water Treatment, solid waste treatment system and stench processing system.
Described Waste Water Treatment comprises wastewater collection pond, material filling type anoxic anaerobic reation pool, wastewater equalization pond, aerobic contact oxidation pond, second pond, reflux formula BAF and clean water basin; Described wastewater collection pond, material filling type anoxic anaerobic reation pool, wastewater equalization pond, aerobic contact oxidation pond, second pond, reflux formula BAF are communicated with successively with clean water basin.
Described material filling type anoxic anaerobic reation pool comprises the double oxygen section, anoxic section and the anaerobism section that are separated into by traverse baffle, described double oxygen section head end is provided with the water inlet pipe for feeding waste water, oxygen section end of holding concurrently is communicated with anoxic section head end, anoxic section end is communicated with anaerobism section head end, the bottom of described anoxic section and anaerobism section water inlet side traverse baffle is provided with the corner of 45 degree, the shock action produced when entering to avoid current, thus the effect playing buffering current and water distribution uniformity; Anaerobism section end is provided with triphase separator and overfalling weir, and overfalling weir connects rising pipe; Described double oxygen section, anoxic section and the tapered structure of anaerobism section bottom design, pyramidal structure connects mud discharging valve; The upper cover design coning structure of the double oxygen section of described material filling type anoxic anaerobic reation pool, anoxic section and anaerobism section, conical structure top is provided with independently methane waste product effuser; All filler is provided with in described double oxygen section, anoxic section and anaerobism section.
Described wastewater equalization pond comprises water inlet pipe and rising pipe, for regulating waste water quality, the water yield and pH value.
In described aerobic contact oxidation pond, middle and lower part is provided with water inlet pipe, and described water inlet pipe bottom is provided with water distribution pyrometric cone; Described water distribution pyrometric cone bottom is provided with aeration regulator control system, and described aeration regulator control system comprises aeration plate, gas blower and dissolved oxygen sensing regulation device; Further, described aeration plate is the pore type aeration plate being evenly provided with micropore, described aeration plate connects gas blower by aeration tube, gas blower is arranged on outside aerobic contact oxidation pond, top, the waste water underwater in aerobic contact oxidation pond arrange dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device is according to the work of oxygen capacity regulation and control gas blower; Described water inlet pipe top is built-in with filler; The water outlet in described aerobic contact oxidation pond is laid with overflow weir; The top in described aerobic contact oxidation pond is provided with conical upper cover, and conical upper cover top settles foul smell effuser and blower fan, and blower fan is communicated with stench processing system.
The rising pipe in described aerobic contact oxidation pond connects second pond, sludge reflux blowdown system is provided with bottom second pond, part sludge reflux is to material filling type anoxic anaerobic reation pool and aerobic contact-oxidation pool, and a part of mud is discharged into solid waste mixing pit as excess sludge.
Water after sedimentation in secondary sedimentation tank process enters reflux formula BAF through overflow weir.
Described reflux formula BAF middle and upper part is cylindrical, bottom is conical structure, comprises lower current area, ascending zone and mud district; Described lower current area is positioned at the middle part of the cylindrical structural of reflux formula BAF, and be cylindrical structural, lower current area top is provided with water inlet pipe and water distributor, is provided with filler in the middle part of lower current area, and lower current area bottom is provided with aeration tube; The bottom of described lower current area is provided with traverse baffle, and the longitudinal section of described traverse baffle is horn-like; Described ascending zone is positioned at the periphery of lower current area, the top of traverse baffle, and be provided with filler in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir; Described mud district is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district is provided with mud discharging valve.
Water after the process of reflux formula BAF enters clean water basin reuse.
Described solid waste treatment system comprises solid waste mixing pit, compost pond; The top in described solid waste mixing pit and compost pond is provided with conical upper cover, and conical upper cover top settles blower fan, and blower fan is communicated with stench processing system by foul smell conduit.
Described stench processing system comprises foul smell collection tube, blower fan and foul smell alkalization cuvette.
Adopt above-mentioned pig farm waste treatment apparatus to carry out a method for offal treatment, there are following steps:
1. the waste water from wastewater collection pond enters the bottom of material filling type anoxic anaerobic reation pool by the hold concurrently water inlet pipe of oxygen section of material filling type anoxic anaerobic reation pool; Waste water advances up and down along traverse baffle after entering material filling type anoxic anaerobic reation pool, successively by the Sludge Bed of each reaction chamber of hold concurrently oxygen section, anoxic section and anaerobism section, mud in reaction tank moves along with the upper current downflow of waste water and the effect of biogas rising, the settlement action of the barrier effect of traverse baffle and mud self makes again the flow velocity of mud reduce, therefore a large amount of mud is all trapped within reaction tank, and the microorganism in reaction tank fully contacts with the organism in waste water.Hydrolysis of organic matter in waste water is organic acid by the heterotrophic bacterium of the amphimicrobe of oxygen section, anoxic section and the anaerobism section held concurrently, and make larger molecular organics be decomposed into small organic molecule, insoluble organism changes into dissolved organic matter; Waste water after anaerobic reaction realizes the separation of mud, water, methane gas at the triphase separator that anaerobism section end is provided with, and mud sinks to the bottom of material filling type anoxic anaerobic reation pool under gravity, and unnecessary mud is discharged by the mud discharging valve of bottom; The methane waste product that material filling type anoxic anaerobic reation pool produces collects discharge by reaction tank top effuser; Waste water after process enters wastewater equalization pond by overfalling weir, rising pipe and pipe connecting.
2. the waste water from material filling type anoxic anaerobic reation pool and wastewater collection pond enters wastewater equalization pond according to the ratio of volume 6:4 by water inlet pipe, regulates the carbon of waste water, nitrogen, phosphorus ratio and the biodegradability of waste water and the pH value of waste water.
3. the waste water after wastewater equalization pond regulates process enters the middle and lower part in aerobic contact oxidation pond by water inlet pipe, water distribution uniformity under the effect of water distribution pyrometric cone, described aeration plate is the pore type aeration plate being evenly provided with micropore, produce a large amount of microbubbles, described dissolved oxygen sensing regulation device is according to the work of oxygen capacity regulation and control gas blower, guarantee that the dissolved oxygen in the water of aerobic contact oxidation pond is greater than 2mg/L, the waste water after process is flowed out by overflow weir and rising pipe.
4. the rising pipe in aerobic contact oxidation pond connects the water distributor of second pond, and a precipitating sludge part for second pond is back to material filling type anoxic anaerobic reation pool and aerobic contact-oxidation pool, and a part enters solid waste mixing pit as excess sludge.
5. the water after sedimentation in secondary sedimentation tank process is through overflow weir, water inlet pipe and water distributor enter the lower current area of reflux formula BAF, the air that aeration tube produces and waste water cross generation biochemical reaction in filler, filler filters waste water simultaneously, waste water is by entering ascending zone after traverse baffle, biochemical reaction is there is in filler, filler filters waste water simultaneously, the mud that lower current area and ascending zone produce sinks to mud district, emitted by the mud discharging valve bottom mud district, water after the process of reflux formula BAF enters clean water basin reuse by overfalling weir.
6. the excess sludge that material filling type anoxic anaerobic reation pool, second pond and reflux formula BAF produce enters after solid waste mixing pit mixes with swine excrement etc. and enters compost pond, and the product after aerobic compost process is as agricultural fertilizer.
7. the foul smell that cultivating workshop, aerobic contact oxidation pond, solid waste mixing pit, compost pond produce is discharged into foul smell alkalization cuvette by blower fan by foul smell conduit.
8., after foul smell enters foul smell alkalization cuvette, the alkali lye generation chemical reactions such as the pollution substance in gas and sodium hydroxide, foul smell is processed into clean gas, realizes qualified discharge.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the structural representation of embodiment of the present invention material filling type anoxic anaerobic reation pool.
In Fig. 1: 1. material filling type anoxic anaerobic reation pool, 1-1. traverse baffle, 1-2. holds concurrently oxygen section, 1-3. anoxic section, 1-4. anaerobism section, 1-5. material filling type anoxic anaerobic reation pool water inlet pipe, 1-6. material filling type anoxic anaerobic reation pool triphase separator, 1-7. material filling type anoxic anaerobic reation pool overfalling weir, 1-8. mud discharging valve, 1-9. upper cover, 1-10. effuser, 1-11. filler.
Fig. 2 is the structural representation in embodiment of the present invention aerobic contact oxidation pond.
In Fig. 2: 2. aerobic contact oxidation pond, 2-1. aerobic contact oxidation pond water inlet pipe, 2-2. water distribution pyrometric cone, 2-3. aeration regulator control system, 2-4. filler, 2-5. aerobic contact oxidation pond overflow weir, the conical upper cover of 2-6., 2-7. foul smell effuser.
Fig. 3 is the structural representation of embodiment of the present invention reflux formula BAF.
In Fig. 3: 3. reflux formula BAF, 3-1. lower current area, 3-2. ascending zone, 3-3. mud district, 3-4. reflux formula BAF water inlet pipe, 3-5. reflux formula BAF water distributor, 3-6. lower current area filler, 3-7. aeration tube, 3-8. traverse baffle, 3-9. ascending zone filler, 3-10. reflux formula BAF overfalling weir, 3-11. mud discharging valve.
Fig. 4 is the process flow sheet of the embodiment of the present invention.
Embodiment
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present invention are described in a schematic way, and therefore it only shows the formation relevant with the present invention.
Embodiment
As shown in Figure 1 to 4, a kind of pig farm of the present invention waste treatment apparatus, comprises Waste Water Treatment, solid waste treatment system and stench processing system.
Described Waste Water Treatment comprises wastewater collection pond, material filling type anoxic anaerobic reation pool 1, wastewater equalization pond, aerobic contact oxidation pond 2, second pond, reflux formula BAF 3 and clean water basin; Described wastewater collection pond, material filling type anoxic anaerobic reation pool 1, wastewater equalization pond, aerobic contact oxidation pond 2, second pond, reflux formula BAF 3 are communicated with successively with clean water basin.
Described material filling type anoxic anaerobic reation pool 1 comprises the double oxygen section 1-2, anoxic section 1-3 and the anaerobism section 1-4 that are separated into by traverse baffle 1-1, described double oxygen section 1-2 head end is provided with the water inlet pipe 1-5 for feeding waste water, oxygen section 1-2 end of holding concurrently is communicated with anoxic section 1-3 head end, anoxic section 1-3 end is communicated with anaerobism section 1-4 head end, the bottom of described anoxic section 1-3 and anaerobism section 1-4 water inlet side traverse baffle is provided with the corner of 45 degree, the shock action produced when entering to avoid current, thus the effect playing buffering current and water distribution uniformity; Anaerobism section 1-4 end is provided with triphase separator 1-6 and overfalling weir 1-7, and overfalling weir 1-7 connects rising pipe; Described double oxygen section 1-2, anoxic section 1-3 and the tapered structure of anaerobism section 1-4 bottom design, pyramidal structure connects mud discharging valve 1-8; The upper cover 1-9 of the double oxygen section of described material filling type anoxic anaerobic reation pool, anoxic section and anaerobism section is designed to conical structure, and conical structure top is provided with methane waste product effuser 1-10; Filler 1-11 is all provided with in described double oxygen section, anoxic section and anaerobism section.
Described wastewater equalization pond comprises water inlet pipe and rising pipe, for regulating the water quality of waste water, the water yield and pH value.
In described aerobic contact oxidation pond 2, middle and lower part is provided with water inlet pipe 2-1, and described water inlet pipe 2-1 bottom is provided with water distribution pyrometric cone 2-2; Described water distribution pyrometric cone 2-2 bottom is provided with aeration regulator control system 2-3, and described aeration regulator control system 2-3 comprises aeration plate, gas blower and dissolved oxygen sensing regulation device; Further, described aeration plate is the pore type aeration plate being evenly provided with micropore.Described aeration plate connects gas blower by aeration tube, gas blower is arranged on outside aerobic contact oxidation pond, top, the waste water underwater in aerobic contact oxidation pond arrange dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device is according to the work of oxygen capacity regulation and control gas blower; Described water inlet pipe top is built-in with filler 2-4; The exit in described aerobic contact oxidation pond is laid with overflow weir 2-5; The top in described aerobic contact oxidation pond is provided with conical upper cover 2-6, and conical upper cover top settles foul smell effuser 2-7 and blower fan, and blower fan is communicated with stench processing system.。
The rising pipe in described aerobic contact oxidation pond 2 connects second pond, sludge reflux blowdown system is provided with bottom second pond, part sludge reflux is to material filling type anoxic anaerobic reation pool 1 and aerobic contact-oxidation pool 2, and a part of mud is discharged into solid waste mixing pit as excess sludge.
Water after sedimentation in secondary sedimentation tank process enters reflux formula BAF 3 through overflow weir.
The middle and upper part of described reflux formula BAF 3 is cylindrical, bottom is conical structure, comprises lower current area 3-1, ascending zone 3-2 and mud district 3-3; Described lower current area 3-1 is positioned at the middle part of the cylindrical structural of reflux formula BAF, for cylindrical structural, lower current area top is provided with water inlet pipe 3-4 and water distributor 3-5, filler 3-6 is provided with in the middle part of lower current area, lower current area bottom is provided with aeration tube 3-7, the bottom of described lower current area is provided with traverse baffle 3-8, and the longitudinal section of described traverse baffle 3-8 is horn-like; Described ascending zone 3-2 is positioned at the periphery of lower current area 3-1, the top of traverse baffle, and be provided with filler 3-9 in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir 3-10; Described mud district 3-3 is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district is provided with mud discharging valve 3-11.
Water after the process of reflux formula BAF enters clean water basin reuse.
Described solid waste treatment system comprises solid waste mixing pit, compost pond; The top in described solid waste mixing pit and compost pond is provided with conical upper cover, and conical upper cover top settles blower fan, and blower fan is communicated with stench processing system by foul smell conduit.
Described stench processing system comprises foul smell collection tube, blower fan and foul smell alkalization cuvette.
Adopt above-mentioned pig farm waste treatment apparatus to carry out a method for offal treatment, there are following steps:
1. the waste water from wastewater collection pond enters the bottom of material filling type anoxic anaerobic reation pool 1 by the hold concurrently water inlet pipe 1-5 of oxygen section of material filling type anoxic anaerobic reation pool; Waste water advances up and down along traverse baffle 1-1 after entering material filling type anoxic anaerobic reation pool 1, successively by the Sludge Bed of each reaction chamber of hold concurrently oxygen section 1-2, anoxic section 1-3 and anaerobism section 1-4, mud in reaction tank moves along with the upper current downflow of waste water and the effect of biogas rising, the settlement action of the barrier effect of filler and traverse baffle 1-1 and mud self makes again the flow velocity of mud reduce, therefore a large amount of mud is all trapped within reaction tank, and the microorganism in reaction tank fully contacts with the organism in waste water.Hydrolysis of organic matter in waste water is organic acid by the double amphimicrobe of oxygen section 1-2, the heterotrophic bacterium of anoxic section 1-3 and anaerobism section 1-4, and make larger molecular organics be decomposed into small organic molecule, insoluble organism changes into dissolved organic matter; Waste water after anaerobic reaction realizes the separation of mud, water, methane gas at the triphase separator 1-6 that anaerobism section end is provided with, mud sinks to the bottom of material filling type anoxic anaerobic reation pool under gravity, and unnecessary mud is discharged by the mud discharging valve 1-8 of bottom; The methane waste product that material filling type anoxic anaerobic reation pool produces collects 1-10 Collection utilization by reaction tank top effuser; Waste water after process enters wastewater equalization pond by overfalling weir 1-7, rising pipe and pipe connecting.
2. the waste water from material filling type anoxic anaerobic reation pool and wastewater collection pond enters wastewater equalization pond according to the ratio of volume 6:4 by water inlet pipe, regulates the carbon of waste water, nitrogen, phosphorus ratio and the biodegradability of waste water and the pH value of waste water.
3. the waste water after wastewater equalization pond regulates process enters the middle and lower part in aerobic contact oxidation pond 2 by water inlet pipe 2-1, water distribution uniformity under the effect of water distribution pyrometric cone 2-2, described aeration plate is the pore type aeration plate being evenly provided with micropore, produce a large amount of microbubbles, described dissolved oxygen sensing regulation device is according to the work of oxygen capacity regulation and control gas blower, guarantee that the dissolved oxygen in the water of aerobic contact oxidation pond is greater than 2mg/L, the waste water after process is flowed out by overflow weir 2-5 and rising pipe.
4. the rising pipe in aerobic contact oxidation pond 2 connects the water distributor of second pond, and a precipitating sludge part for second pond is back to material filling type anoxic anaerobic reation pool 1 and aerobic contact-oxidation pool 2, and a part enters solid waste mixing pit as excess sludge.
5. the water after sedimentation in secondary sedimentation tank process is through overflow weir, water inlet pipe 3-4 and water distributor 3-5 enters the lower current area 3-1 of baffling aeration biological filter chamber, the air that aeration tube 3-7 produces and waste water cross generation biochemical reaction in filler 3-6, filler 3-6 filters waste water simultaneously, waste water is by entering ascending zone 3-2 after traverse baffle 3-8, biochemical reaction is there is in filler 3-9, filler 3-9 filters waste water simultaneously, the mud that lower current area 3-1 and ascending zone 3-2 produces sinks to mud district 3-3, emitted by the mud discharging valve 3-11 bottom mud district, water after the process of reflux formula BAF 3 enters clean water basin reuse by overfalling weir 3-10.
6. the excess sludge that material filling type anoxic anaerobic reation pool 1, second pond and reflux formula BAF 3 produce enters solid waste mixing pit, and enter compost pond after mixing with swine excrement etc., the product after aerobic compost process is as agricultural fertilizer.
7. the foul smell that cultivating workshop, aerobic contact oxidation pond 2, solid waste mixing pit, compost pond produce is discharged into foul smell alkalization cuvette by blower fan by foul smell conduit.
8., after foul smell enters foul smell alkalization cuvette, the alkali lye generation chemical reactions such as the pollution substance in gas and sodium hydroxide, foul smell is processed into clean gas, realizes qualified discharge.
With above-mentioned according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the scope not departing from this invention technological thought.The technical scope of this invention is not limited to the content on specification sheets, must determine its technical scope according to right.
Claims (2)
1. a pig farm waste treatment apparatus, is characterized in that: comprise Waste Water Treatment, solid waste treatment system and stench processing system;
Described Waste Water Treatment comprises wastewater collection pond, material filling type anoxic anaerobic reation pool (1), wastewater equalization pond, aerobic contact oxidation pond (2), second pond, reflux formula BAF (3) and clean water basin; Described wastewater collection pond, material filling type anoxic anaerobic reation pool (1), wastewater equalization pond, aerobic contact oxidation pond (2), second pond, reflux formula BAF (3) are communicated with successively with clean water basin;
Described material filling type anoxic anaerobic reation pool (1) comprise be separated into by traverse baffle (1-1) double oxygen section (1-2), anoxic section (1-3) and anaerobism section (1-4), described double oxygen section (1-2) head end is provided with the water inlet pipe (1-5) for feeding waste water, oxygen section (1-2) end of holding concurrently is communicated with anoxic section (1-3) head end, and anoxic section (1-3) end is communicated with anaerobism section (1-4) head end; The bottom of the water inlet side traverse baffle of described anoxic section (1-3) and anaerobism section (1-4) is provided with the corner of 45 degree; Anaerobism section (1-4) end is provided with triphase separator (1-6) and overfalling weir (1-7), and overfalling weir (1-7) connects rising pipe; Described double oxygen section (1-2), anoxic section (1-3) and the tapered structure of anaerobism section (1-4) bottom design, pyramidal structure connects mud discharging valve (1-8); The upper cover (1-9) of the double oxygen section of described material filling type anoxic anaerobic reation pool, anoxic section and anaerobism section is designed to conical structure, and conical structure top is provided with methane waste product effuser (1-10); Filler (1-11) is all provided with in described double oxygen section, anoxic section and anaerobism section;
Described wastewater equalization pond comprises water inlet pipe and rising pipe, for regulating the water quality of waste water, the water yield and pH value;
The interior middle and lower part of described aerobic contact oxidation pond (2) arranges water inlet pipe (2-1), and described water inlet pipe (2-1) bottom is provided with water distribution pyrometric cone (2-2); Described water distribution pyrometric cone (2-2) bottom is provided with aeration regulator control system (2-3), and described aeration regulator control system (2-3) comprises aeration plate, gas blower and dissolved oxygen sensing regulation device; Further, described aeration plate is the pore type aeration plate being evenly provided with micropore; Described aeration plate connects gas blower by aeration tube, gas blower is arranged on outside aerobic contact oxidation pond, top, the waste water underwater in aerobic contact oxidation pond arrange dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device is according to the work of oxygen capacity regulation and control gas blower; Described water inlet pipe top is built-in with filler (2-4); The exit in described aerobic contact oxidation pond is laid with overflow weir (2-5); The top in described aerobic contact oxidation pond is provided with conical upper cover (2-6), and conical upper cover top settles foul smell effuser (2-7) and blower fan, and blower fan is communicated with stench processing system;
The rising pipe of described aerobic contact oxidation pond (2) connects second pond, sludge reflux blowdown system is provided with bottom second pond, part sludge reflux is to material filling type anoxic anaerobic reation pool (1) and aerobic contact-oxidation pool (2), and a part of mud is discharged into solid waste mixing pit as excess sludge;
Water after sedimentation in secondary sedimentation tank process enters reflux formula BAF (3) through overflow weir;
The middle and upper part of described reflux formula BAF (3) is cylindrical, bottom is conical structure, comprises lower current area (3-1), ascending zone (3-2) and mud district (3-3); Described lower current area (3-1) is positioned at the middle part of the cylindrical structural of reflux formula BAF, for cylindrical structural, lower current area top is provided with water inlet pipe (3-4) and water distributor (3-5), filler (3-6) is provided with in the middle part of lower current area, lower current area bottom is provided with aeration tube (3-7), the bottom of described lower current area is provided with traverse baffle (3-8), and the longitudinal section of described traverse baffle (3-8) is horn-like; Described ascending zone (3-2) is positioned at the periphery of lower current area (3-1), the top of traverse baffle, filler (3-9) is provided with in the middle part of ascending zone, bottom is provided with aeration tube, and the exit on ascending zone top is provided with overfalling weir (3-10); Described mud district (3-3) is positioned at the bottom of the bottom of reflux formula BAF, lower current area and ascending zone, and the bottom in mud district is provided with mud discharging valve (3-11);
Water after reflux formula BAF (3) process enters clean water basin reuse;
Described solid waste treatment system comprises solid waste mixing pit, compost pond; The top in described solid waste mixing pit and compost pond is provided with conical upper cover, and conical upper cover top settles blower fan, and blower fan is communicated with stench processing system by foul smell conduit;
Described stench processing system comprises foul smell collection tube, blower fan and foul smell alkalization cuvette.
2. adopt pig farm as claimed in claim 1 waste treatment apparatus to carry out a method for offal treatment, there are following steps:
1. the waste water from wastewater collection pond enters the bottom of material filling type anoxic anaerobic reation pool (1) by the hold concurrently water inlet pipe (1-5) of oxygen section of material filling type anoxic anaerobic reation pool; Advance up and down along traverse baffle (1-1) after waste water enters material filling type anoxic anaerobic reation pool (1), successively by the Sludge Bed of each reaction chamber of hold concurrently oxygen section (1-2), anoxic section (1-3) and anaerobism section (1-4), the microorganism in reaction tank fully contacts with the organism in waste water; Hydrolysis of organic matter in waste water is organic acid, makes larger molecular organics be decomposed into small organic molecule, and insoluble organism changes into dissolved organic matter; Waste water after anaerobic reaction realizes the separation of mud, water, methane gas at the triphase separator (1-6) that anaerobism section end is provided with, mud sinks to the bottom of material filling type anoxic anaerobic reation pool under gravity, and unnecessary mud is discharged by the mud discharging valve (1-8) of bottom; The methane waste product that material filling type anoxic anaerobic reation pool produces is collected by reaction tank top effuser (1-10); Waste water after process enters wastewater equalization pond by overfalling weir (1-7), rising pipe and pipe connecting;
2. the waste water from material filling type anoxic anaerobic reation pool (1) and wastewater collection pond enters wastewater equalization pond according to the ratio of volume 6:4 by water inlet pipe, regulates the carbon of waste water, nitrogen, phosphorus ratio and the biodegradability of waste water and the pH value of waste water;
3. the waste water after wastewater equalization pond regulates process enters the middle and lower part of aerobic contact oxidation pond (2) by water inlet pipe (2-1), water distribution uniformity under the effect of water distribution pyrometric cone (2-2), described aeration plate produces a large amount of microbubbles, described dissolved oxygen sensing regulation device is according to the work of oxygen capacity regulation and control gas blower, and the waste water after process is flowed out by overflow weir (2-5) and rising pipe;
4. the rising pipe of aerobic contact oxidation pond (2) connects the water distributor of second pond, the precipitating sludge part sludge reflux of second pond is to material filling type anoxic anaerobic reation pool (1) and aerobic contact-oxidation pool (2), and a part enters solid waste mixing pit as excess sludge;
5. the water after sedimentation in secondary sedimentation tank process is through overflow weir, water inlet pipe (3-4) and water distributor (3-5) enter the lower current area (3-1) of baffling aeration biological filter chamber, the air that aeration tube (3-7) produces and waste water cross generation biochemical reaction in filler (3-6), filler (3-6) filters waste water simultaneously, waste water enters ascending zone (3-2) by after traverse baffle (3-8), biochemical reaction is there is in filler (3-9), filler (3-9) filters waste water simultaneously, the mud that lower current area (3-1) and ascending zone (3-2) produce sinks to mud district (3-3), emitted by the mud discharging valve (3-11) bottom mud district, water after reflux formula BAF (3) process enters clean water basin reuse by overfalling weir (3-10),
6. the excess sludge that material filling type anoxic anaerobic reation pool (1), second pond and reflux formula BAF (3) produce enters solid waste mixing pit, enter compost pond after mixing with swine excrement, the product after aerobic compost process is as agricultural fertilizer;
7. the foul smell that cultivating workshop, aerobic contact oxidation pond (2), solid waste mixing pit, compost pond produce is discharged into foul smell alkalization cuvette by blower fan by foul smell conduit;
8., after foul smell enters foul smell alkalization cuvette, the pollution substance in gas and alkali lye generation chemical reaction, foul smell is processed into clean gas, realizes qualified discharge.
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