CN208898709U - A kind of centralized processing of animal waste utilizes system - Google Patents

A kind of centralized processing of animal waste utilizes system Download PDF

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CN208898709U
CN208898709U CN201821425367.8U CN201821425367U CN208898709U CN 208898709 U CN208898709 U CN 208898709U CN 201821425367 U CN201821425367 U CN 201821425367U CN 208898709 U CN208898709 U CN 208898709U
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pond
sludge
tank
reflux pump
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张建华
林国宁
赖日坤
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Guangdong Shuiqing Environmental Protection Technology Co Ltd
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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

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Abstract

The utility model discloses a kind of centralized processings of animal waste to utilize system, including grid maker, the dilute dirty collecting pit, solid-liquid separating machine being sequentially connected, it is sequentially connected after the liquid outlet of solid-liquid separating machine and is provided with transfer pond, CSTR anaerobic jar, anaerobic precipitation pond, biogas slurry storage pool, " A/O+ sedimentation basin " reaction system, physical reaction pond, physico-chemical precipitation pond;Oxidation pond, sludge-tank are provided with behind physico-chemical precipitation pond, sludge-tank is connected with sludge dewatering equipment, the filtrate port connection setting collecting pit of sludge dewatering equipment, and siccative mouth is provided with dry mud compost collecting bin;It is sequentially connected behind the solid-state outlet of solid-liquid separating machine and is provided with mixed material area, fermentation tank, ageing tank, crushes and screens equipment, metering packing equipment, wherein mixed material area is additionally provided with dead livestock and poultry biodegrade processor.The utility model can effectively solve the problem that existing livestock and poultry loosely cultivate that existing offal treatment Process for Effluent suspended matter is more, and concentration of nitrogen and phosphorus is high, and impact resistance ability is poor, out the problem of water unstable.

Description

A kind of centralized processing of animal waste utilizes system
Technical field
The utility model relates to a kind of centralized processings of animal waste to utilize system.
Background technique
Current China livestock and poultry breeding industry is quickly grown, and has become the most active growth point of rural economy, and with livestock and poultry Agricultural wastes resource very abundant based on excrement, agricultural crop straw, still, since China's livestock and poultry breeding industry development shortage must The guidance and planning wanted, be more spontaneously, merely meet the needs of the market demand Free Development, lead to China's livestock and poultry breeding industry cloth Office is unreasonable, breeding disconnects, and it is more than environmental carrying capacity that some areas, which cultivate total amount, and Pollution from livestock and poultry facility for prevention and control is generally matched in addition Cover not in place, the wastes such as a large amount of feces of livestock and poultry, sewage cannot efficiently use, and lead to environmental pollution.
China's scale animal and poultry cultivation industry waste water generally uses SBR technique or single anaerobic-aerobic technique at present, resistance to Impact load ability is weak, and effluent quality is unstable;And concentration of suspension, concentration of nitrogen and phosphorus are high in the biogas slurry after anaerobic digestion, carbon Nitrogen than low, therefore it is subsequent water outlet be difficult it is up to standard.The treatment effects such as traditional contact oxidation method, SBR method, oxidation ditch process are paid no attention to Think, and have fluctuation of service, Construction and operation is costly, the problems such as lacking dephosphorization link, is not suitable for Practical Project and uses.
Utility model content
The purpose of this utility model provides a kind of centralized processing of animal waste using system and method, solves existing poultry Fowl loosely cultivates that existing offal treatment Process for Effluent suspended matter is more, and concentration of nitrogen and phosphorus is high, and impact resistance ability is poor, out water unstable The problem of.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of animal waste centralized processing utilizes System, including grid maker 7, the dilute dirty collecting pit 8, solid-liquid separating machine 9 being sequentially connected, after the liquid outlet of solid-liquid separating machine 9 according to It is secondary to be connected with transfer pond 10, CSTR anaerobic jar 11, anaerobic precipitation pond 12, biogas slurry storage pool 13, " A/O+ sedimentation basin " reaction System, physical reaction pond 21, physico-chemical precipitation pond 22;Coupled oxidation pond 23, sludge-tank are provided with behind physico-chemical precipitation pond 22 24, sludge-tank 24 is connected with sludge dewatering equipment 25, the filtrate port connection setting collecting pit 8 of sludge dewatering equipment 25, siccative Mouth is provided with dry mud compost collecting bin 26;
The solid-state outlet rear of solid-liquid separating machine 9, which is sequentially connected, is provided with mixed material area 2, fermentation tank 3, ageing tank 4, grinding screen Subset 5, metering packing equipment 6, wherein mixed material area is additionally provided with dead livestock and poultry biodegrade processor.
In order to sufficiently realize the utilization to biogas, it is sequentially connected after the methane outlet of CSTR anaerobic jar 11 and is provided with desulfurization and sets Standby 31, the double film storage bags 32 of biogas, dehydration pressurization facility 33, marsh gas power generation 34.
In order to realize that anaerobic precipitation pond supplements sludge in real time, the activity of sludge in fermentor, anaerobic precipitation pond 12 is also connected with Be provided with the first sludge reflux pump 35, the sludge mouth of the second sludge reflux pump 35 is connected with sludge-tank 24, import and CSTR anaerobic jar 11 is connected.
Further, " A/O+ sedimentation basin " reaction system is two-stage " A/O+ sedimentation basin " reaction system, wherein the first order " A/ O+ sedimentation basin " reaction system includes level-one anoxic pond 15, level-one aerobic tank 16, first stage precipitation tank 17, the second level " A/O+ precipitating Pond " reaction system includes second level anoxic pond 18, second level aerobic tank 19, second-level settling pond 20.
Further, level-one anoxic pond 15 is connected with mixed liquor reflux pump 36 and air blower, and first stage precipitation tank 17 connects It connects and is provided with level-one sludge reflux pump 37, the sludge mouth of level-one sludge reflux pump 37 connects sludge-tank 24, level-one sludge reflux pump 37 refluxing opening is connected with level-one anoxic pond 15, level-one aerobic tank 16;The import of level-one mixed liquor reflux pump 36 and level-one are aerobic Pond 16 is connected, and outlet is connected with level-one anoxic pond 15.
Further, second level anoxic pond 18 is connected with mixed liquor reflux pump 38 and air blower, and second-level settling pond 20 connects It connects and is provided with secondary sludge reflux pump 39, the sludge mouth of secondary sludge reflux pump 39 connects sludge-tank 24, secondary sludge reflux pump 39 refluxing opening is connected with second level anoxic pond 17, second level aerobic tank 18;The import of second level mixed liquor reflux pump 38 and second level are aerobic Pond 18 is connected, and outlet is connected with second level anoxic pond 17.
Further, coupled liquid manure preparing pool 14 is additionally provided with after biogas slurry storage pool 13.
A kind of centralized processing of animal waste utilizes method, includes the following steps:
Step 1, within the scope of raiser concentrated area, service radius 20km, construction animal waste focus on center; Excrement groove tank car is inhaled using large size and is collected transport waste, and groove tank car collects the waste transport in service area at transport to concentration Reason center, wherein the feces of farm within the scope of 2km can be used pump mode and be delivered to animal waste centralized processing center, To mitigate vehicles drive pressure;And argol collects transport to centralized processing center using closed transport vehicle;It will by transport vehicle Dead livestock and poultry is transported to centralized processing center;
The animal dung soiling solution for collecting transport to centralized processing center by groove tank car is removed plastics through grid maker by step 2 After the rubbish such as bottle, polybag, sundries, it is sent into dilute dirty collecting pit, then be pumped up into solid-liquid separating machine, isolates argol slag and waste Liquid;
Step 3 will be transported to the dead livestock and poultry at centralized processing center by transport vehicle through grab bucket investment biodegrade processing In machine, mixed material area is delivered to after degradation, while the argol slag isolated through step 2 is delivered to mixed material area, with auxiliary material/microbial inoculum and The argol for collecting transport to centralized processing center through the closed transport vehicle of step 1 enters fermentation tank together after evenly mixing and sufficiently sends out Ferment, enter back into ageing tank it is decomposed after, be ground into graininess, be packaged pack and organic fertilizer product is made;
The waste liquid isolated through step 2 is sent into transfer pond by step 4, is delivered in CSTR anaerobic jar through pump, CSTR detests The biogas that aerobe fermentation generates, after desulfurization equipment desulfurization, into biogas film storage bag, through dehydration pressurization facility, into marsh gas power generation Unit is generated electricity using marsh gas power generation equipment, and the sending end of marsh gas power generation equipment is connected to the grid;
The sludge formed behind step 4CSTR anaerobic precipitation pond is sent into sludge-tank by step 5, and in due course dirty by first Mud reflux pump supplements sludge to CSTR anaerobic jar, guarantees the activity of sludge in fermentor;Biogas slurry after the clarification of anaerobic precipitation pond Into biogas slurry storage pool, some of biogas slurries are transported temporary to field as liquid manure into liquid manure preparing pool through groove tank car Pond, using fertilising pipe network reuse to field crops, the biogas slurry of other part is pumped into two-stage " A/O+ sedimentation basin " reaction system, Degradation COD and denitrogenation dephosphorizing, water outlet add the further dephosphorization of pharmacy response through physical reaction pond in due course and improve sedimentation effect, after Enter multi-stage oxidizing sugar after being sent into physico-chemical precipitation pond clarified wastewater, it is terminally positioned to be connected with oxosugar after stablizing waste water quality Fish pond.
It is discharged in step 5 biogas slurry storage pool 13 by being pumped into two-stage " A/O+ sedimentation basin " reaction system, wherein the first order " A/ The hydraulic detention time of O+ sedimentation basin " reaction system is 34h;By level-one anaerobic pond, level-one aerobic tank to first stage precipitation tank, into Row COD, ammonia nitrogen, the degradation of phosphorus and mud, water separation;And be equipped with the return-flow system of sludge, mixed liquor, that is, pass through the second sludge reflux Pump is by the sludge reflux of first stage precipitation tank to level-one aerobic tank, activated sludge concentration needed for guaranteeing level-one aerobic tank, and sludge returns Stream is than being 100%;The mixed liquor of level-one aerobic tank is back to level-one anoxic pond by reflux pump by mixed liquor reflux, is guaranteed de- The progress of ammonia treatment process, reflux ratio 200%;First stage precipitation tank water outlet goes successively to secondary anaerobic pond, second level aerobic tank, Second-level settling pond is discharged water to, machine object and denitrogenation dephosphorizing are further removed;The second level " A/O+ sedimentation basin " reaction system is again provided with Sludge reflux and mixed liquor reflux, reflux ratio is respectively 100% and 200%, the water of the second level " A/O+ sedimentation basin " reaction system The power residence time is 32h;The level-one anoxic pond, second level anoxic pond state modulator are as follows: BOD5/TN > 3~5, pH 7.0~ 7.5, dissolved oxygen is in 0.1~0.5mg/L, the level-one aerobic tank, second level aerobic tank state modulator are as follows: 2~4mg/ of dissolved oxygen content L;Effluent quality is CODcr195mg/L, SS153mg/L, ammonia nitrogen 57mg/L, TP38mg/L, PH7.5.
Further, when the water outlet of two-stage " A/O+ sedimentation basin " reaction system enters physical reaction pond in steps of 5, to materialization Ca (OH) 2, PAC, PAM are added in waste water in reaction tank, further removes the pollutants such as dephosphorization, and effluent quality is CODcr187mg/L, SS130mg/L, ammonia nitrogen 57mg/L, TP6mg/L, PH9.5.
Further, in steps of 5, acid adding makes its water outlet pull back to 6-8 at the outlet conduit in physico-chemical precipitation pond, laggard Enter the multi-stage oxidizing pool and carries out in-depth processing, effluent quality CODcr131mg/L, SS52mg/L, ammonia nitrogen 51mg/L, TP5mg/L.
The utility model has the beneficial effects that realizing the processing of animal waste has completely all contaminants of waste Collection, processing and reutilization system mitigate pollution to environment to realize that the multiple stage circulation of matter energy utilizes.Waste It is broadly divided into argol and urine, argol uses compost treatment, produces organic fertilizer;Urine enters methane-generating pit and carries out at anaerobic fermentation Reason, part biogas slurry are applied to the pourings such as field-crop, vegetables, fruit tree, forest processing as liquid fertilizer nearby, and remaining biogas slurry carries out Depth integrates harmless treatment, reaches agriculture and fills discharge standard, realizes the receipts of dead livestock and poultry, argol processing and animal dung soiling solution Collection, processing and utilize, thoroughly solve livestock and poultry loosely cultivate existing for offal treatment Process for Effluent suspended matter it is more, concentration of nitrogen and phosphorus Height, impact resistance ability is poor, out the problem of water unstable.Meanwhile the centralized processing of this animal waste utilizes the resistance to punching of system and method It is strong to hit load-bearing capacity, Nitrogen/Phosphorus Removal is obvious, and stable water outlet is up to standard, and system automation degree is high, and it is easy to operate, and drop significantly The low pollution to environment, produces certain economic benefit, is that a kind of on-site elimination, energy circulation, the agricultural of comprehensive utilization are useless Effective governance model that waste resource utilizes relatively is suitable for the processing of centralization, large-scale animal waste, is a kind of value The livestock-raising processing technique that must be promoted.
Below with reference to drawings and examples, the utility model is described in detail.
Detailed description of the invention
Fig. 1 is flow diagram of the invention.
Fig. 2 is Treatment of Sludge flow diagram of the invention.
Specific embodiment
Embodiment, a kind of animal waste centralized processing as shown in Figure 1 and Figure 2 utilizes system, including the lattice being sequentially connected Grid machine 7, dilute dirty collecting pit 8, solid-liquid separating machine 9, be sequentially connected after the liquid outlet of solid-liquid separating machine 9 be provided with transfer pond 10, CSTR anaerobic jar 11, anaerobic precipitation pond 12, biogas slurry storage pool 13, " A/O+ sedimentation basin " reaction system, physical reaction pond 21, materialization Sedimentation basin 22;Coupled oxidation pond 23, sludge-tank 24 are provided with behind physico-chemical precipitation pond 22, sludge-tank 24 is connected with dirt Mud dewaterer 25, the filtrate port connection setting collecting pit 8 of sludge dewatering equipment 25, siccative mouth are provided with dry mud compost collecting bin 26;
The solid-state outlet rear of solid-liquid separating machine 9, which is sequentially connected, is provided with mixed material area 2, fermentation tank 3, ageing tank 4, grinding screen Subset 5, metering packing equipment 6, wherein mixed material area is additionally provided with dead livestock and poultry biodegrade processor.
The methane outlet rear of CSTR anaerobic jar 11, which is sequentially connected, to be provided with the double film storage bags 32 of desulphurization plant 31, biogas, takes off Water pressurization facility 33, marsh gas power generation 34.
Anaerobic precipitation pond 12, which is also connected with, is provided with sludge reflux pump 35, and the sludge mouth of sludge reflux pump 35 is connected with dirt Mud sump 24, import are connected with CSTR anaerobic jar 11.
" A/O+ sedimentation basin " reaction system is two-stage " A/O+ sedimentation basin " reaction system, wherein the first order " A/O+ sedimentation basin " Reaction system includes level-one anoxic pond 15, level-one aerobic tank 16, first stage precipitation tank 17, the second level " A/O+ sedimentation basin " reaction system System includes second level anoxic pond 18, second level aerobic tank 19, second-level settling pond 20.
Level-one anoxic pond 15 is connected with mixed liquor reflux pump 36 and air blower, and first stage precipitation tank 17 is connected with dirt The sludge mouth of mud reflux pump 37, sludge reflux pump 37 connects sludge-tank 24, the refluxing opening and level-one anoxic pond of sludge reflux pump 37 15, level-one aerobic tank 16 is connected;The import of mixed liquor reflux pump 36 is connected with level-one aerobic tank 16, outlet and level-one anoxic pond 15 are connected.
Further, second level anoxic pond 18 is connected with mixed liquor reflux pump 38 and air blower, and second-level settling pond 20 connects It connects and is provided with secondary sludge reflux pump 39, the sludge mouth of secondary sludge reflux pump 39 connects sludge-tank 24, secondary sludge reflux pump 39 refluxing opening is connected with second level anoxic pond 17, second level aerobic tank 18;The import of second level mixed liquor reflux pump 38 and second level are aerobic Pond 18 is connected, and outlet is connected with second level anoxic pond 17.Mixed liquor reflux pump 38 herein is mixed liquor nitrification liquid reflux pump, is taken off Nitrogen is completed under anoxic conditions, it is the necessary condition of denitrification reaction
A kind of centralized processing of animal waste utilizes method, includes the following steps:
Step 1, within the scope of raiser concentrated area, service radius 20km, construction animal waste focus on center; Excrement groove tank car is inhaled using large size and is collected transport waste, and groove tank car collects the waste transport in service area at transport to concentration Reason center, wherein the feces of farm within the scope of 2km can be used pump mode and be delivered to animal waste centralized processing center, To mitigate vehicles drive pressure;And argol collects transport to centralized processing center using closed transport vehicle;It will by transport vehicle Dead livestock and poultry is transported to centralized processing center;
The animal dung soiling solution for collecting transport to centralized processing center by groove tank car is removed plastics through grid maker by step 2 After the rubbish such as bottle, polybag, sundries, it is sent into dilute dirty collecting pit, then be pumped up into solid-liquid separating machine, isolates argol slag and waste Liquid;
Step 3 will be transported to the dead livestock and poultry at centralized processing center by transport vehicle through grab bucket investment biodegrade processing In machine, mixed material area is delivered to after degradation, while the argol slag isolated through step 2 is delivered to mixed material area, with auxiliary material/microbial inoculum and The argol for collecting transport to centralized processing center through the closed transport vehicle of step 1 enters fermentation tank together after evenly mixing and sufficiently sends out Ferment, enter back into ageing tank it is decomposed after, be ground into graininess, be packaged pack and organic fertilizer product is made;
The waste liquid isolated through step 2 is sent into transfer pond by step 4, is delivered in CSTR anaerobic jar through pump, CSTR detests The biogas that aerobe fermentation generates, after desulfurization equipment desulfurization, into biogas film storage bag, through dehydration pressurization facility, into marsh gas power generation Unit is generated electricity using marsh gas power generation equipment, and the sending end of marsh gas power generation equipment is connected to the grid;
The sludge formed behind step 4CSTR anaerobic precipitation pond is sent into sludge-tank by step 5, and in due course dirty by first Mud reflux pump supplements sludge to CSTR anaerobic jar, guarantees the activity of sludge in fermentor;Biogas slurry after the clarification of anaerobic precipitation pond Into biogas slurry storage pool, some of biogas slurries are transported temporary to field as liquid manure into liquid manure preparing pool through groove tank car Pond, using fertilising pipe network reuse to field crops, the biogas slurry of other part is pumped into two-stage " A/O+ sedimentation basin " reaction system, Degradation COD and denitrogenation dephosphorizing, water outlet add the further dephosphorization of pharmacy response through physical reaction pond in due course and improve sedimentation effect, after Enter multi-stage oxidizing sugar after being sent into physico-chemical precipitation pond clarified wastewater, it is terminally positioned to be connected with oxosugar after stablizing waste water quality Fish pond.
It is discharged in step 5 biogas slurry storage pool 13 by being pumped into two-stage " A/O+ sedimentation basin " reaction system, wherein the first order " A/ The hydraulic detention time of O+ sedimentation basin " reaction system is 34h;By level-one anaerobic pond, level-one aerobic tank to first stage precipitation tank, into Row COD, ammonia nitrogen, the degradation of phosphorus and mud, water separation;And be equipped with the return-flow system of sludge, mixed liquor, that is, pass through the second sludge reflux Pump is by the sludge reflux of first stage precipitation tank to level-one aerobic tank, activated sludge concentration needed for guaranteeing level-one aerobic tank, and sludge returns Stream is than being 100%;The mixed liquor of level-one aerobic tank is back to level-one anoxic pond by reflux pump by mixed liquor reflux, is guaranteed de- The progress of ammonia treatment process, reflux ratio 200%;First stage precipitation tank water outlet goes successively to secondary anaerobic pond, second level aerobic tank, Second-level settling pond is discharged water to, machine object and denitrogenation dephosphorizing are further removed;The second level " A/O+ sedimentation basin " reaction system is again provided with Sludge reflux and mixed liquor reflux, reflux ratio is respectively 100% and 200%, the water of the second level " A/O+ sedimentation basin " reaction system The power residence time is 32h;The level-one anoxic pond, second level anoxic pond state modulator are as follows: BOD5/TN > 3~5, pH 7.0~ 7.5, dissolved oxygen is in 0.1~0.5mg/L, the level-one aerobic tank, second level aerobic tank state modulator are as follows: 2~4mg/ of dissolved oxygen content L;Effluent quality is CODcr195mg/L, SS153mg/L, ammonia nitrogen 57mg/L, TP38mg/L, PH7.5.
When the water outlet of two-stage " A/O+ sedimentation basin " reaction system enters physical reaction pond in steps of 5, into physical reaction pond Waste water in add Ca (OH) 2, PAC, PAM, further remove the pollutants such as dephosphorization, effluent quality CODcr187mg/L, SS130mg/L, ammonia nitrogen 57mg/L, TP6mg/L, PH9.5.
In steps of 5, acid adding makes its water outlet pull back to 6-8 at the outlet conduit in physico-chemical precipitation pond, rear to enter multistage oxygen Change the pool and carries out in-depth processing, effluent quality CODcr131mg/L, SS52mg/L, ammonia nitrogen 51mg/L, TP5mg/L.
The utilization of organic fertilizer: organic fertilizer raw material main component derives from plant and (or) animal, imposes on soil to provide plant Object nutrition is the carbonaceous material of its major function.Through biological substance, animals and plants waste, plant residue processing, eliminate Poisonous and harmful substance therein is rich in a large amount of benefit materials.
The Collection utilization of biogas slurry: biogas slurry is collected by being laid with biogas slurry hidden pipe and biogas slurry storage pool.Project Cooperation Agriculture Demonstration Garden promotes the low-carbon circular economy mode that " poultry-natural pond-dish " breeding combines, in mating completion area, drip-irrigation work Journey, tourism and Ecological Project Construction etc. are the leading mating thinking of hydraulic engineering, construction collection valley harnessing, the high-new section of modern agriculture Skill is shown, the transformation of scientific and technical result and land transformation mechanism are in the environmental Demonstration Garden of comprehensive modern agriculture science and technology of one.
The utilization of biogas: the biogas generated in anaerobic processes is used to generate electricity.Power generation is designed by 16h daily, every cube of biogas Generated energy based on 2kWh, marsh gas power generation efficiency based on 75%, be safeguards system stable operation, biogas generator select two, one It is standby with one.
Two-stage A/O+ settling system includes the level-one anoxic pond that sequentially pipeline is connected to, level-one aerobic tank, first stage precipitation tank, two Grade anoxic pond, second level aerobic tank, second-level settling pond.The end of level-one aerobic tank is provided with the mixed liquor connecting with level-one anoxic pond Return pipe, the end of first stage precipitation tank are provided with the mud return line connecting with level-one aerobic tank and level-one anoxic pond.Second level is good The end in oxygen pond is provided with the mixed liquor return pipe connecting with second level anoxic pond, and the end of second-level settling pond is provided with good with second level The mud return line that oxygen pond is connected with second level anoxic pond.
The excess sludge generated in anaerobic precipitation pond, I and II sedimentation basin and physico-chemical precipitation pond enters sludge-tank storage, after It is delivered to sludge dewatering equipment with pump to be carried out dehydrating, the filtrate of generation flows back into dilute dirty collecting pit, and dry mud does compost treatment.
Collect the animal dung soiling solution influent quality of coming are as follows: CODcr8000mg/L, SS6000mg/L, ammonia nitrogen 500mg/L, TP80mg/L, PH7.6.
Animal dung soiling solution first passes around grid maker, and the rubbish, sundries such as removal plastic tape prevent the obstruction of pump and processing equipment And damage.
Dilute dirt collecting pit: collecting the animal dung soiling solution from grid maker, and hydraulic detention time is for 24 hours.Piggery wastewater Discharge be it is discontinuous, belong to interim draining, therefore need first to be collected it, it is rear to focus on, guarantee water quality and quantity It is balanced.
Solid-liquid separating machine: waste water introduces solid-liquid separating machine by pump, removes the suspended matters such as pig manure, the pig hair in waste water, and will It is transported to argol mixed material area and continues with.Effluent quality is CODcr5600mg/L, SS1200mg/L, ammonia nitrogen 475mg/L, TP76mg/L, PH7.6.
Transfer pond: the water outlet of solid-liquid separating machine enters transfer pond, uniform water quality and quantity, hydraulic detention time 12h.
CSTR anaerobic jar: the water outlet of transfer pond is pumped up in CSTR anaerobic jar COD in fermentative degradation waste water, and generates natural pond Gas, hydraulic detention time are 20 days.
Anaerobic precipitation pond: the water outlet after the fermentation of CSTR anaerobic jar enters anaerobic precipitation pond and carries out precipitation process, removes biogas slurry In biogas residue, effluent quality CODcr2520mg/L, SS1020mg/L, ammonia nitrogen 475mg/L, TP76mg/L, PH7.8.At anaerobism Most organic matter is converted the simple small organic molecule such as methane and inorganic matter by reason, to make to purify the sewage, greatly The organic loading of subsequent biochemical processing part is alleviated greatly.
Biogas slurry storage pool: biogas slurry enters biogas slurry storage pool, and half biogas slurry flow to level-one anoxic pond and continues with, the other half natural pond Liquid is used as field irrigation after storage pool stops three months.Biogas residue enters sludge-tank.To guarantee that activated sludge is dense in anaerobic jar Degree, flows back into CSTR anaerobic jar for partial sludge.
Biogas treatment process: the biogas generated in anaerobic fermentation process, after desulfurization, dehydration pressurized treatments, into biogas Generating set power generation, supplements the daily electricity consumption of farm.
Two-stage A/O system: biogas slurry storage pool is discharged by being pumped into two-stage A/O system, and wherein the waterpower of level-one A/O system is stopped Staying the time is 34h.The water outlet of level-one anaerobic-aerobic (AO) system to first stage precipitation tank, carry out COD, ammonia nitrogen, the degradation of phosphorus and mud, Water separation, and be equipped with the return-flow system of sludge, mixed liquor, i.e., by the sludge reflux of first stage precipitation tank to level-one aerobic tank, guarantee Activated sludge concentration needed for level-one aerobic tank, return sludge ratio 100%;Mixed liquor reflux is i.e. by the mixing of level-one aerobic tank Liquid is back to level-one anoxic pond, guarantees the progress of deamination treatment process, reflux ratio 200%.First stage precipitation tank water outlet continues Into aerobic (AO) system of secondary anaerobic-, two-stage precipitation is discharged water to, further removes machine object and denitrogenation dephosphorizing.Second level A/O system System is again provided with sludge reflux and mixed liquor reflux, and reflux ratio is respectively 100% and 200%, the hydraulic retention of second level A/O system Time is 32h.The level-one anoxic pond, second level anoxic pond state modulator are as follows: BOD5/TN > 3~5, pH are dissolved 7.0~7.5 Oxygen is in 0.1~0.5mg/L, the level-one aerobic tank, second level aerobic tank state modulator are as follows: 2~4mg/L of dissolved oxygen content;It is discharged water Matter is CODcr195mg/L, SS153mg/L, ammonia nitrogen 57mg/L, TP38mg/L, PH7.5.
Materializing strategy process: two-stage A/O system water outlet enter physical reaction pond, added into waste water Ca (OH) 2, PAC, PAM, further removes the pollutants such as dephosphorization, effluent quality CODcr187mg/L, SS130mg/L, ammonia nitrogen 57mg/L, TP6mg/L, PH9.5。
Oxidation pond: the pH higher of physico-chemical precipitation pond water outlet, acid adding pulls back to 6-8 at outlet conduit, rear to enter multistage oxygen Change the pool and carries out in-depth processing, effluent quality CODcr131mg/L, SS52mg/L, ammonia nitrogen 51mg/L, TP5mg/L.
Oxidation pond water qualified discharge is used for field irrigation.
Sludge system: anaerobic precipitation pond, two-stage sedimentation basin, the biogas residue of physico-chemical precipitation pond generation, excess sludge enter sludge Pond storage, after be dehydrated with being pumped to sludge dewatering equipment, dewatered dry mud is used as compost, and filtrate is back to collecting pit.
The processing of dead livestock and poultry: the waste of livestock and poultry further includes the processing of sick dead pig and the processing of argol.Pass through transport vehicle The sick dead pig for being collected into processing center enters dead livestock and poultry biodegrade integrated processing machine through grab bucket, by stirring, aeration, adds The functions such as heat heat preservation, waste gas purification processing, by sensor detecting, the parameters such as precise control of temperature, humidity and oxygen-supplying amount, Intelligent Rapid Fermentation handles dead livestock and poultry, after being quickly turned to the organic fertilizer raw material of high nutrient, enters argol mixing through conveyer Area.
It is first uniformly mixed with auxiliary material/microbial inoculum by the livestock and poultry argol that transport vehicle is collected into processing center, then is placed in hair In ferment slot, by control aeration and in due course turning, control temperature makes it sufficiently ferment, enter back into ageing it is decomposed after, be ground into Granular, metering is packaged pack and forms organic fertilizer product.
The utility model is exemplarily described in conjunction with attached drawing above.Obviously, the utility model implements not It is limited by aforesaid way.As long as the various unsubstantialities that the method concept and technical solution that use the utility model carry out Improvement;Or it is not improved, the above-mentioned conception and technical scheme of the utility model are directly applied into other occasions, at this Within the protection scope of utility model.

Claims (6)

1. a kind of centralized processing of animal waste utilizes system, it is characterised in that: including be sequentially connected grid maker (7), dilute dirt Collecting pit (8), solid-liquid separating machine (9), be sequentially connected after the liquid outlet of solid-liquid separating machine (9) be provided with transfer pond (10), CSTR anaerobic jar (11), anaerobic precipitation pond (12), biogas slurry storage pool (13), " A/O+ sedimentation basin " reaction system, physical reaction pond (21), physico-chemical precipitation pond (22);Coupled oxidation pond (23), sludge-tank (24) are provided with behind physico-chemical precipitation pond (22), it is dirty Mud sump (24) is connected with sludge dewatering equipment (25), and filtrate port connection setting collecting pit (8) of sludge dewatering equipment (25) is done Material mouth is provided with dry mud compost collecting bin (26);
It is sequentially connected behind the solid-state outlet of solid-liquid separating machine (9) and is provided with mixed material area (2), fermentation tank (3), ageing tank (4), crushes Screening plant (5), metering packing equipment (6), wherein mixed material area is additionally provided with dead livestock and poultry biodegrade processor.
2. animal waste centralized processing according to claim 1 utilizes system, it is characterised in that: CSTR anaerobic jar (11) Methane outlet after be sequentially connected and be provided with the double film storage bag (32) of desulphurization plant (31), biogas, dehydration pressurization facility (33), biogas It generates electricity (34).
3. animal waste centralized processing according to claim 2 utilizes system, it is characterised in that: anaerobic precipitation pond (12) It is also connected with and is provided with sludge reflux pump (35), the sludge mouth of sludge reflux pump (35) is connected with sludge-tank (24), import It is connected with CSTR anaerobic jar (11).
4. utilizing system to the centralized processing of animal waste described in 3 any one according to claim 1, it is characterised in that: " A/ O+ sedimentation basin " reaction system is two-stage " A/O+ sedimentation basin " reaction system, wherein the first order " A/O+ sedimentation basin " reaction system packet Include level-one anoxic pond (15), level-one aerobic tank (16), first stage precipitation tank (17), the second level " A/O+ sedimentation basin " reaction system packet Include second level anoxic pond (18), second level aerobic tank (19), second-level settling pond (20).
5. animal waste centralized processing according to claim 4 utilizes system, it is characterised in that: level-one anoxic pond (15) It is connected with level-one mixed liquor reflux pump (36) and air blower, first stage precipitation tank (17) is connected with level-one sludge reflux pump (37), the sludge mouth of level-one sludge reflux pump (37) is connected with sludge-tank (24), the reflux of level-one sludge reflux pump (37) Mouth is connected with level-one anoxic pond (15), level-one aerobic tank (16);The import of level-one mixed liquor reflux pump (36) and level-one aerobic tank (16) it is connected, outlet is connected with level-one anoxic pond (15), and second level anoxic pond (18) is connected with mixed liquor reflux pump (38) And air blower, second-level settling pond (20) are connected with secondary sludge reflux pump (39), the sludge of secondary sludge reflux pump (39) Mouth connection sludge-tank (24), the refluxing opening and second level anoxic pond (17) of secondary sludge reflux pump (39), second level aerobic tank (18) phase Even;The import of second level mixed liquor reflux pump (38) is connected with second level aerobic tank (18), and outlet is connected with second level anoxic pond (17).
6. animal waste centralized processing according to claim 5 utilizes system, it is characterised in that: biogas slurry storage pool (13) It is additionally provided with coupled liquid manure preparing pool (14) afterwards.
CN201821425367.8U 2018-08-31 2018-08-31 A kind of centralized processing of animal waste utilizes system Active CN208898709U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108892334A (en) * 2018-08-31 2018-11-27 广东水清环保科技有限公司 A kind of centralized processing of animal waste utilizes system and method
CN110467317A (en) * 2019-08-26 2019-11-19 广西农垦永新畜牧集团金光有限公司 A kind of livestock breeding wastewater innocuity disposal system and method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108892334A (en) * 2018-08-31 2018-11-27 广东水清环保科技有限公司 A kind of centralized processing of animal waste utilizes system and method
CN110467317A (en) * 2019-08-26 2019-11-19 广西农垦永新畜牧集团金光有限公司 A kind of livestock breeding wastewater innocuity disposal system and method

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