CN104743747B - Pig farm waste treatment apparatus and method - Google Patents

Pig farm waste treatment apparatus and method Download PDF

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Publication number
CN104743747B
CN104743747B CN201510118827.7A CN201510118827A CN104743747B CN 104743747 B CN104743747 B CN 104743747B CN 201510118827 A CN201510118827 A CN 201510118827A CN 104743747 B CN104743747 B CN 104743747B
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pond
water
section
waste water
waste
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CN104743747A (en
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万玉山
贾春霞
陈艳秋
黄利
方慧
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Pizhou Borui Investment Management Co.,Ltd.
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Changzhou University
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    • 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
    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/20Sludge processing
    • 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
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00Technologies for solid waste management
    • Y02W30/40Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse

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  • Treatment Of Sludge (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

The present invention relates to a kind of pig farm waste treatment apparatus and method, including Waste Water Treatment, solid waste treatment system and stench processing system;Waste Water Treatment includes wastewater collection pond, material filling type anoxia anaerobic reation pool, wastewater equalization pond, aerobic contact oxidation pond, second pond, reflux formula BAF and clear water reserviors;Solid waste treatment system includes solid waste mixing pit, compost pond;Stench processing system includes foul smell collecting pipe, blower fan and foul smell alkalization absorption cell.Entering clear water reserviors reuse after wastewater treatment, as agricultural fertilizer after solid waste compost process, the polluter in gas and alkali liquor generation chemical reaction after foul smell entrance foul smell alkalization absorption cell, foul smell is processed into the gas of cleaning, it is achieved qualified discharge.

Description

Pig farm waste treatment apparatus and method
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 had both produced the solid pollutants such as feces in running, also had the waste water such as urine, flushing water, also produced the atmosphere pollutions such as foul smell simultaneously.The pollutant on pig farm are all likely to produce to pollute to environment in links such as collection, storage, transport, process, utilizations, if can not get dealing carefully with disposal water body, air, soil and health will be caused threat greatly and harm, the sustainable development of pig industry self is brought huge negative effect.
Piggery wastewater can cropland application or adopt nature process system process, but both tupes are required for a large amount of soil, it is 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 limited area, soil Process for Treatment of Swine Wastewater, in industrial treatment pattern, adopt aerobic process directly to process the investment of piggery wastewater and operating cost is all significantly high, what employing was more at present is anaerobic-aerobic group technology, and anaerobic-aerobic group technology processes Process for Treatment of Swine Wastewater poor effect, reason is mainly: in anaerobic digestion process, each contaminant degradation is asynchronous, cause that anaerobic digestion solution biodegradability reduces and carbon, nitrogen, phosphorus out of proportion, have impact on the growth of microorganism in Aerobic Process for Treatment;Concurrent anaerobic digestion liquid lacks easily biodegradable organics and causes denitrification weak effect;The basicity produced can not make up the basicity that nitrifying process consumes, and pH value declines and causes Aerobic Process for Treatment system performance degradation.
Summary of the invention
The technical problem to be solved in the present invention is: in order to solve problem of environmental pollution that above-mentioned pig farm produces in running and anaerobic-aerobic group technology processes the difficult problem of Process for Treatment of Swine Wastewater poor effect, the present 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, including Waste Water Treatment, solid waste treatment system and stench processing system.
Described Waste Water Treatment includes wastewater collection pond, material filling type anoxia anaerobic reation pool, wastewater equalization pond, aerobic contact oxidation pond, second pond, reflux formula BAF and clear water reserviors;Described wastewater collection pond, material filling type anoxia anaerobic reation pool, wastewater equalization pond, aerobic contact oxidation pond, second pond, reflux formula BAF and clear water reserviors are sequentially communicated.
Described material filling type anoxia anaerobic reation pool includes the double oxygen section, anoxia section and the anaerobism section that are separated into by deflection plate, described double oxygen section head end is provided with the water inlet pipe for feeding waste water, oxygen section end of holding concurrently connects with anoxia section head end, anoxia section end connects with anaerobism section head end, the bottom of described anoxia section and anaerobism section water inlet side deflection plate is provided with the corner of 45 degree, the percussion produced during to avoid current to enter, thus playing the effect of buffering current and water distribution uniformity;Anaerobism section end is provided with three phase separator and overfalling weir, and overfalling weir connects outlet pipe;Described double oxygen section, anoxia 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 anoxia anaerobic reation pool, anoxia section and anaerobism section, conical structure top is provided with independent methane waste product discharge;It is designed with filler in described double oxygen section, anoxia section and anaerobism section.
Described wastewater equalization pond includes water inlet pipe and outlet pipe, is used 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 includes aeration plate, aerator and dissolved oxygen sensing regulation device;Further, described aeration plate is the pore type aeration plate being evenly arranged with micropore, described aeration plate connects aerator by aeration tube, aerator is arranged on outside aerobic contact oxidation pond, the top in aerobic contact oxidation pond, waste water underwater arrange dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device regulates and controls aerator work according to oxygen capacity;Described water inlet pipe top is built-in with filler;The water outlet in described aerobic contact oxidation pond is laid with downflow weir;The top in described aerobic contact oxidation pond is provided with cone upper cover, and cone upper cover top disposes foul smell discharge and blower fan, blower fan connection stench processing system.
The outlet pipe in described aerobic contact oxidation pond connects second pond, sludge reflux exhaust system it is provided with bottom second pond, a part of sludge reflux is to material filling type anoxia 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 downflow weir.
Described reflux formula BAF middle and upper part is conical structure for cylindrical, bottom, including 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 for 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 deflection plate, and the vertical section of described deflection plate is horn-like;Described ascending zone is positioned at the top of the periphery of lower current area, deflection plate, is provided with filler in the middle part of ascending zone, and 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 clear water reserviors reuse.
Described solid waste treatment system includes solid waste mixing pit, compost pond;The top in described solid waste mixing pit and compost pond is provided with cone upper cover, and cone upper cover top disposes blower fan, and blower fan is by foul smell collection conduit connection stench processing system.
Described stench processing system includes foul smell collecting pipe, blower fan and foul smell alkalization absorption cell.
A kind of method adopting above-mentioned pig farm waste treatment apparatus to carry out offal treatment, has following steps:
1. from the waste water in wastewater collection pond by material filling type anoxia anaerobic reation pool hold concurrently oxygen section water inlet pipe enter material filling type anoxia anaerobic reation pool bottom;Waste water enters material filling type anoxia anaerobic reation pool tailing edge deflection plate and advances up and down, pass sequentially through the Sludge Bed of each reative cell of double oxygen section, anoxia section and anaerobism section, mud in reaction tank moves along with the flowing up and down of waste water and the effect of biogas rising, the settlement action of the barrier effect of deflection plate and mud self makes again the flow velocity of mud reduce, therefore substantial amounts of mud is all trapped within reaction tank, and the microorganism in reaction tank is fully contacted with the Organic substance in waste water.Hydrolysis of organic matter in waste water is organic acid by the heterotrophic bacteria of the amphimicrobe of oxygen section, anoxia section and the anaerobism section held concurrently, and makes larger molecular organics be decomposed into small organic molecule, and insoluble Organic substance changes into dissolved organic matter;Waste water after anaerobic reaction realizes the separation of mud, water, methane gas at the three phase separator that anaerobism section end is provided with, and mud sinks to the bottom of material filling type anoxia 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 anoxia anaerobic reation pool produces collects discharge by reaction tank top discharge;Waste water after process enters wastewater equalization pond by overfalling weir, outlet pipe and connecting tube.
2. enter wastewater equalization pond according to the ratio of volume 6:4 by water inlet pipe from the waste water in material filling type anoxia anaerobic reation pool and wastewater collection pond, regulate the biodegradability of the carbon of waste water, nitrogen, phosphorus ratio and waste water and the pH value of waste water.
3. the waste water after wastewater equalization pond adjustment 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 arranged with micropore, produce substantial amounts of microbubble, described dissolved oxygen sensing regulation device regulates and controls aerator work according to oxygen capacity, guaranteeing that the dissolved oxygen in the water of aerobic contact oxidation pond is more than 2mg/L, the waste water after process is flowed out by downflow weir and outlet pipe.
4. the outlet 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 anoxia 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 downflow weir, water inlet pipe and water distributor enter the lower current area of reflux formula BAF, air and the waste water that aeration tube produces crosses generation biochemical reaction in filler, waste water is filtered by filler simultaneously, waste water is by entering ascending zone after deflection plate, filler occurs biochemical reaction, waste water is filtered by filler 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 clear water reserviors reuse by overfalling weir.
6. the excess sludge that material filling type anoxia anaerobic reation pool, second pond and reflux formula BAF produce enters entrance compost pond after solid waste mixing pit mixes with swine excrement etc., 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 absorption cell by blower fan by foul smell collection conduit.
8., after foul smell enters foul smell alkalization absorption cell, the alkali liquor generation chemical reaction such as the polluter in gas and sodium hydroxide, foul smell is processed into the gas of cleaning, it is achieved 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 anoxia anaerobic reation pool.
In Fig. 1: 1. material filling type anoxia anaerobic reation pool, 1-1. deflection plate, 1-2. holds concurrently oxygen section, 1-3. anoxia section, 1-4. anaerobism section, 1-5. material filling type anoxia anaerobic reation pool water inlet pipe, 1-6. material filling type anoxia anaerobic reation pool three phase separator, 1-7. material filling type anoxia anaerobic reation pool overfalling weir, 1-8. mud discharging valve, 1-9. upper cover, 1-10. discharge, 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 downflow weir, 2-6. cone upper cover, 2-7. foul smell discharge.
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. deflection plate, 3-9. ascending zone filler, 3-10. reflux formula BAF overfalling weir, 3-11. mud discharging valve.
Fig. 4 is the process chart of the embodiment of the present invention.
Detailed description of the invention
In conjunction with the accompanying drawings, the present invention is further detailed explanation.These accompanying drawings are the schematic diagram of simplification, and the basic structure of the present invention is only described in a schematic way, and therefore it only shows the composition relevant with the present invention.
Embodiment
As shown in Figure 1 to 4, one pig farm of the present invention waste treatment apparatus, including Waste Water Treatment, solid waste treatment system and stench processing system.
Described Waste Water Treatment includes wastewater collection pond, material filling type anoxia anaerobic reation pool 1, wastewater equalization pond, aerobic contact oxidation pond 2, second pond, reflux formula BAF 3 and clear water reserviors;Described wastewater collection pond, material filling type anoxia anaerobic reation pool 1, wastewater equalization pond, aerobic contact oxidation pond 2, second pond, reflux formula BAF 3 and clear water reserviors are sequentially communicated.
Described material filling type anoxia anaerobic reation pool 1 includes by deflection plate 1-1 double oxygen section 1-2, anoxia section 1-3 and the anaerobism section 1-4 being separated into, 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 connects with anoxia section 1-3 head end, anoxia section 1-3 end connects with anaerobism section 1-4 head end, the bottom of described anoxia section 1-3 and anaerobism section 1-4 water inlet side deflection plate is provided with the corner of 45 degree, the percussion produced during to avoid current to enter, thus playing the effect of buffering current and water distribution uniformity;Anaerobism section 1-4 end is provided with three phase separator 1-6 and overfalling weir 1-7, overfalling weir 1-7 and connects outlet pipe;Described double oxygen section 1-2, anoxia 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 anoxia anaerobic reation pool, anoxia section and anaerobism section is designed to conical structure, and conical structure top is provided with methane waste product discharge 1-10;It is designed with filler 1-11 in described double oxygen section, anoxia section and anaerobism section.
Described wastewater equalization pond includes water inlet pipe and outlet 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 includes aeration plate, aerator and dissolved oxygen sensing regulation device;Further, described aeration plate is the pore type aeration plate being evenly arranged with micropore.Described aeration plate connects aerator by aeration tube, aerator is arranged on outside aerobic contact oxidation pond, the top in aerobic contact oxidation pond, waste water underwater arrange dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device regulates and controls aerator work according to oxygen capacity;Described water inlet pipe top is built-in with filler 2-4;The exit in described aerobic contact oxidation pond is laid with downflow weir 2-5;The top in described aerobic contact oxidation pond is provided with cone upper cover 2-6, and cone upper cover top disposes foul smell discharge 2-7 and blower fan, blower fan connection stench processing system..
The outlet pipe in described aerobic contact oxidation pond 2 connects second pond, sludge reflux exhaust system it is provided with bottom second pond, a part of sludge reflux is to material filling type anoxia 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 downflow weir.
The middle and upper part of described reflux formula BAF 3 is conical structure for cylindrical, bottom, including 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 it 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 deflection plate 3-8, and the vertical section of described deflection plate 3-8 is horn-like;Described ascending zone 3-2 is positioned at the top of the periphery of lower current area 3-1, deflection plate, is provided with filler 3-9 in the middle part of ascending zone, and 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 clear water reserviors reuse.
Described solid waste treatment system includes solid waste mixing pit, compost pond;The top in described solid waste mixing pit and compost pond is provided with cone upper cover, and cone upper cover top disposes blower fan, and blower fan is by foul smell collection conduit connection stench processing system.
Described stench processing system includes foul smell collecting pipe, blower fan and foul smell alkalization absorption cell.
A kind of method adopting above-mentioned pig farm waste treatment apparatus to carry out offal treatment, has following steps:
1. from the waste water in wastewater collection pond by material filling type anoxia anaerobic reation pool hold concurrently oxygen section water inlet pipe 1-5 enter material filling type anoxia anaerobic reation pool 1 bottom;Waste water enters material filling type anoxia anaerobic reation pool 1 tailing edge deflection plate 1-1 and advances up and down, pass sequentially through the Sludge Bed of each reative cell of double oxygen section 1-2, anoxia section 1-3 and anaerobism section 1-4, mud in reaction tank moves along with the flowing up and down of waste water and the effect of biogas rising, the settlement action of the barrier effect of filler and deflection plate 1-1 and mud self makes again the flow velocity of mud reduce, therefore substantial amounts of mud is all trapped within reaction tank, and the microorganism in reaction tank is fully contacted with the Organic substance in waste water.Hold concurrently the amphimicrobe of oxygen section 1-2, anoxia section 1-3 and anaerobism section 1-4 heterotrophic bacteria be organic acid by the hydrolysis of organic matter in waste water, make larger molecular organics be decomposed into small organic molecule, insoluble Organic substance changes into dissolved organic matter;Waste water after anaerobic reaction realizes the separation of mud, water, methane gas at the three phase separator 1-6 that anaerobism section end is provided with, mud sinks to the bottom of material filling type anoxia 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 anoxia anaerobic reation pool produces collects 1-10 Collection utilization by reaction tank top discharge;Waste water after process enters wastewater equalization pond by overfalling weir 1-7, outlet pipe and connecting tube.
2. enter wastewater equalization pond according to the ratio of volume 6:4 by water inlet pipe from the waste water in material filling type anoxia anaerobic reation pool and wastewater collection pond, regulate the biodegradability of the carbon of waste water, nitrogen, phosphorus ratio and waste water and the pH value of waste water.
3. the waste water after wastewater equalization pond adjustment 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 arranged with micropore, produce substantial amounts of microbubble, described dissolved oxygen sensing regulation device regulates and controls aerator work according to oxygen capacity, guaranteeing that the dissolved oxygen in the water of aerobic contact oxidation pond is more than 2mg/L, the waste water after process is flowed out by downflow weir 2-5 and outlet pipe.
4. the outlet 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 anoxia 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 downflow weir, water inlet pipe 3-4 and water distributor 3-5 enters the lower current area 3-1 of baffling aeration biological filter chamber, air and the waste water that aeration tube 3-7 produces crosses generation biochemical reaction in filler 3-6, waste water is filtered by filler 3-6 simultaneously, waste water is by entering ascending zone 3-2 after deflection plate 3-8, filler 3-9 occurs biochemical reaction, waste water is filtered by filler 3-9 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 clear water reserviors reuse by overfalling weir 3-10.
6. the excess sludge that material filling type anoxia anaerobic reation pool 1, second pond and reflux formula BAF 3 produce enters solid waste mixing pit, enters compost pond with swine excrement etc. after mixing, and 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 absorption cell by blower fan by foul smell collection conduit.
8., after foul smell enters foul smell alkalization absorption cell, the alkali liquor generation chemical reaction such as the polluter in gas and sodium hydroxide, foul smell is processed into the gas of cleaning, it is achieved qualified discharge.
With the above-mentioned desirable embodiment according to the present invention for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the scope not necessarily departing from this invention technological thought.The technical scope of this invention is not limited to the content in description, it is necessary to determine its technical scope according to right.

Claims (2)

1. a pig farm waste treatment apparatus, it is characterised in that: include Waste Water Treatment, solid waste treatment system and stench processing system;
Described Waste Water Treatment includes wastewater collection pond, material filling type anoxia anaerobic reation pool (1), wastewater equalization pond, aerobic contact oxidation pond (2), second pond, reflux formula BAF (3) and clear water reserviors;Described wastewater collection pond, material filling type anoxia anaerobic reation pool (1), wastewater equalization pond, aerobic contact oxidation pond (2), second pond, reflux formula BAF (3) and clear water reserviors are sequentially communicated;
Described material filling type anoxia anaerobic reation pool (1) includes the double oxygen section (1-2), anoxia section (1-3) and the anaerobism section (1-4) that are separated into by deflection plate (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 connects with anoxia section (1-3) head end, and anoxia section (1-3) end connects with anaerobism section (1-4) head end;The bottom of the water inlet side deflection plate of described anoxia section (1-3) and anaerobism section (1-4) is provided with the corner of 45 degree;Anaerobism section (1-4) end is provided with three phase separator (1-6) and overfalling weir (1-7), and overfalling weir (1-7) connects outlet pipe;Described double oxygen section (1-2), anoxia 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 anoxia anaerobic reation pool, anoxia section and anaerobism section is designed to conical structure, and conical structure top is provided with methane waste product discharge (1-10);It is designed with filler (1-11) in described double oxygen section, anoxia section and anaerobism section;
Described wastewater equalization pond includes water inlet pipe and outlet 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) includes aeration plate, aerator and dissolved oxygen sensing regulation device;Further, described aeration plate is the pore type aeration plate being evenly arranged with micropore;Described aeration plate connects aerator by aeration tube, aerator is arranged on outside aerobic contact oxidation pond, the top in aerobic contact oxidation pond, waste water underwater arrange dissolved oxygen sensing regulation device, and described dissolved oxygen sensing regulation device regulates and controls aerator work according to oxygen capacity;Described water inlet pipe top is built-in with filler (2-4);The exit in described aerobic contact oxidation pond is laid with downflow weir (2-5);The top in described aerobic contact oxidation pond is provided with cone upper cover (2-6), and cone upper cover top disposes foul smell discharge (2-7) and blower fan, blower fan connection stench processing system;
The outlet pipe of described aerobic contact oxidation pond (2) connects second pond, sludge reflux exhaust system it is provided with bottom second pond, a part of sludge reflux is to material filling type anoxia 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 downflow weir;
The middle and upper part of described reflux formula BAF (3) is conical structure for cylindrical, bottom, including 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) it 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 deflection plate (3-8), and the vertical section of described deflection plate (3-8) is horn-like;Described ascending zone (3-2) is positioned at the top of the periphery of lower current area (3-1), deflection plate, is provided with filler (3-9) in the middle part of ascending zone, and 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 clear water reserviors reuse;
Described solid waste treatment system includes solid waste mixing pit and compost pond;The top in described solid waste mixing pit and compost pond is provided with cone upper cover, and cone upper cover top disposes blower fan, and blower fan is by foul smell collection conduit connection stench processing system;
Described stench processing system includes foul smell collecting pipe, blower fan and foul smell alkalization absorption cell.
2. the method adopting pig farm as claimed in claim 1 waste treatment apparatus to carry out offal treatment, has following steps:
1. the bottom of material filling type anoxia anaerobic reation pool (1) is entered from the waste water in wastewater collection pond by the hold concurrently water inlet pipe (1-5) of oxygen section of material filling type anoxia anaerobic reation pool;Waste water enters material filling type anoxia anaerobic reation pool (1) tailing edge deflection plate (1-1) and advances up and down, passing sequentially through the Sludge Bed of each reative cell of double oxygen section (1-2), anoxia section (1-3) and anaerobism section (1-4), the microorganism in reaction tank is fully contacted with the Organic substance 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 Organic substance changes into dissolved organic matter;Waste water after anaerobic reaction realizes the separation of mud, water, methane gas at the three phase separator (1-6) that anaerobism section end is provided with, mud sinks to the bottom of material filling type anoxia 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 anoxia anaerobic reation pool produces is collected by reaction tank top discharge (1-10);Waste water after process enters wastewater equalization pond by overfalling weir (1-7), outlet pipe and connecting tube;
2. enter wastewater equalization pond according to the ratio of volume 6:4 by water inlet pipe from the waste water in material filling type anoxia anaerobic reation pool (1) and wastewater collection pond, regulate the biodegradability of the carbon of waste water, nitrogen, phosphorus ratio and waste water and the pH value of waste water;
3. the waste water after wastewater equalization pond adjustment 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 substantial amounts of microbubble, described dissolved oxygen sensing regulation device regulates and controls aerator work according to oxygen capacity, and the waste water after process is flowed out by downflow weir (2-5) and outlet pipe;
4. the outlet pipe of aerobic contact oxidation pond (2) connects the water distributor of second pond, the a part of sludge reflux of precipitating sludge of second pond is to material filling type anoxia 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 downflow 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), waste water is filtered by filler (3-6) simultaneously, waste water enters ascending zone (3-2) afterwards by deflection plate (3-8), filler (3-9) occurs biochemical reaction, waste water is filtered by filler (3-9) 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 clear water reserviors reuse by overfalling weir (3-10);
6. the excess sludge that material filling type anoxia anaerobic reation pool (1), second pond and reflux formula BAF (3) produce enters solid waste mixing pit, entering compost pond with swine excrement after mixing, 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 absorption cell by blower fan by foul smell collection conduit;
8., after foul smell enters foul smell alkalization absorption cell, the polluter in gas and alkali liquor generation chemical reaction, foul smell is processed into the gas of cleaning, it is achieved qualified discharge.
CN201510118827.7A 2015-03-18 2015-03-18 Pig farm waste treatment apparatus and method Active CN104743747B (en)

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CN105036470A (en) * 2015-07-21 2015-11-11 常州大学 Pig farm waste water and manure processing system
CN105169865A (en) * 2015-08-29 2015-12-23 常州大学 Chicken farm waste treatment device
CN105753263A (en) * 2016-04-27 2016-07-13 常州大学 Large breeding farm waste treatment device and method
IL245872A0 (en) * 2016-05-26 2016-08-31 S G T Sustainable Green Tech Ltd Process and facility for the treatment of livestock waste
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CN111957200A (en) * 2020-08-04 2020-11-20 江苏润誉环保设备科技有限公司 Catalytic oxidation filter tank for organic sulfur waste gas treatment

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