CN107010788A - A kind of Large-scale pig farm culturing wastewater processing system and method - Google Patents
A kind of Large-scale pig farm culturing wastewater processing system and method Download PDFInfo
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- CN107010788A CN107010788A CN201710346003.4A CN201710346003A CN107010788A CN 107010788 A CN107010788 A CN 107010788A CN 201710346003 A CN201710346003 A CN 201710346003A CN 107010788 A CN107010788 A CN 107010788A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/20—Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1268—Membrane bioreactor systems
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
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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
Abstract
The invention discloses a kind of Large-scale pig farm culturing wastewater processing system and method, prior art floor space is mainly solved greatly, the problem for the treatment of effeciency is low, automatic controlling level is low.Large-scale pig farm culturing wastewater processing system includes pretreatment system, system for anaerobic treatment, Aerobic Process for Treatment system and the advanced treatment system being sequentially connected, and advanced treatment system includes MBR reaction tanks, electroxidation decoloration device and the clear water reserviors being sequentially connected.Large-scale pig farm cultivating wastewater purification method, comprises the following steps：Wastewater from Pig Farm enters pretreatment system, system for anaerobic treatment, Aerobic Process for Treatment system, enters back into advanced treatment system, the sewage qualified discharge after processing, and excrement slag, biogas, the sludge produced in processing procedure carries out recycling recycling.
Description
Technical field
The invention belongs to environmental technology field, and in particular to a kind of Large-scale pig farm culturing wastewater processing system and side
Method.
Background technology
Recently as developing rapidly for national economy, China's livestock breeding industry also progressively grows, large quantities of intensive, scales
Change plant to build up in succession, while also bringing the problem of environmental pollution of Relatively centralized.Methane, vulcanization in the air of pig farm
The foul gas such as hydrogen, ammonia pollute periphery and lower air port air, and substantial amounts of liquid metabolin, pig house washing waste water and part dissipate
Pig feed fallen etc. make it that the contaminated wastewater on pig farm is serious.CODcr is up to 4000 in studies have shown that Large-scale pig farm waste water
~20000mg/L, BOD are up to 1500~6000mg/L, ammonia nitrogen concentration 450~1500mg/L, TP 50~330mg/L of concentration, are
A kind of high nitrogen, high phosphorus, high-concentration organic substance wastewater, wherein also containing suspended particulate substances such as substantial amounts of undissolved pig manures.At present
Treatment technology is generally physical filtering+anaerobic reation pool+aerobic reaction tank+nature processing system, and people is used natural processing system more
Work wetland, land treatment systems and stabilization pond technology, the treatment technology floor space are big, and treatment effeciency is low, automatic controlling level is low.
The content of the invention
It is an object of the invention to provide a kind of scale that floor space is small, treatment effeciency is high, automatic controlling level is high
Change the processing system and method for pig farm breeding wastewater.
To achieve the above object, the present invention uses following technical scheme：
A kind of Large-scale pig farm culturing wastewater processing system, includes the pretreatment system, Anaerobic Treatment system being sequentially connected
System, Aerobic Process for Treatment system and advanced treatment system；
The pretreatment system includes the grid canal being sequentially connected, water collecting settling pond, solid-liquid separating machine and mixes well hydrolytic tank,
The entrance of the water collecting settling pond is provided with gate valve；
The system for anaerobic treatment includes IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, desulfurization aeration tank, detested
Oxygen precipitation pond, heat exchanger, collecting methane and disposal system and sludge treatment system, the IC high efficiency anaerobic reactors or ACS
The water inlet of high efficiency anaerobic reactor is connected with the delivery port for mixing well hydrolytic tank, and junction is provided with gate valve；The IC is high
Effect anaerobic reactor or ACS high efficiency anaerobic reactors, desulfurization aeration tank, anaerobic precipitation pond are sequentially connected, the heat exchanger
Water inlet is connected with the delivery port for mixing well hydrolytic tank, and junction is provided with gate valve, the delivery port of the heat exchanger and institute
State the water inlet connection of IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors；
The Aerobic Process for Treatment system includes one-level A/O ponds, second pond and the two grades of A/O ponds being sequentially connected, the one-level A/O
Water inlet be connected with the delivery port in the anaerobic precipitation pond；
The advanced treatment system includes MBR reaction tanks, electroxidation decoloration device and the clear water reserviors being sequentially connected, described
The water inlet of MBR reaction tanks is connected with the delivery port of two grades of A/O.
Collecting methane in the system for anaerobic treatment includes the first moisture trap being sequentially connected with disposal system, taken off
Sulphur device, biogas container, the second moisture trap, methane booster and steam boiler, the sludge treating system is comprising successively
The sludge concentration tank of connection, reactive tank, dewaterer composition, the steam boiler is by conveyance conduit to steam point of use and described
Heat exchanger conveys steam.
The pretreatment system also includes a kind of Emergency Exhaust System, and the Emergency Exhaust System is complete comprising what is be sequentially connected
Anaerobic pond, collecting-tank are closed, the totally-enclosed anaerobic pond entrance is connected with grid canal outlet, and junction is provided with lock
Valve, the delivery port of the collecting-tank is connected by water pump with the water inlet of the water collecting settling pond.
The IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors pass through pipeline and the first moisture trap phase
Connection, totally-enclosed anaerobic pond is connected by pipeline with first moisture trap.
The IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, anaerobic precipitation pond, second pond, MBR reaction tanks
Mud discharging mouthful is connected by sludge pump with the entrance of the sludge concentration tank, the mud discharging mouthful in the anaerobic precipitation pond and
Connected between the sludge reflux mouthful of IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors by sludge reflux water pump, it is described
Connected between the mud discharging mouthful of second pond and the sludge reflux mouthful in one-level A/O ponds by sludge reflux water pump, the MBR reactions
Connected between the mud discharging mouthful in pond and two grades of A/O sludge reflux mouthful by sludge reflux water pump, the sludge concentration tank goes out
The mouth of a river is connected with the entrance for mixing well hydrolytic tank.
MBR filtering film components are provided with the MBR reaction tanks, the MBR filtering film components bottom is equipped with aerator,
The MBR reaction tanks bottom of pond portion is provided with air blower, and the air inlet of the aerator is connected with the gas outlet of the air blower.
Described Large-scale pig farm culturing wastewater processing system is provided with robot control system(RCS) PLC and controls the water pump, air blast
The operation of machine, there is provided on-line monitoring controls the collecting methane and disposal system, water pump, the operation of air blower.
In the electroxidation decoloration device containing can be removed using anodizing reduction reaction Organic Pollutants in Wastewater,
Make the battery lead plate of waste water decoloring, the battery lead plate is made of alloy sheets, low carbon board, aluminium sheet or its combination, and effect stability is used
Mounting industrial waste iron filing and coke packing in long lifespan, the electroxidation equipment, waste water enter electroxidation equipment after with the filler
Micro-electrolysis reaction occurs for interior low price iron, filler low price iron is discharged Fe2+, while the catalytic action of the high pressure dissolved oxygen in equipment
Under, Fe2+Change into Fe3+, newborn Fe2+And Fe3+All it is good flocculant, with higher adsorption-flocculation active function, wadding
The floccule body of ferrous hydroxide and iron hydroxide after solidifying it is most of in the presence of high pressure dissolved oxygen on float on liquid level and pass through
Skimming machine is excluded automatically, has part to enter the quiet heavy and then automatic mud removing in natural sedimentation area to the sludge-tank of equipment.
A kind of Large-scale pig farm cultivating wastewater purification method, comprises the following steps：
(1) Wastewater from Pig Farm initially enters pretreatment system and pre-processed, and waste water removes the drift of bulk by grid canal
After float, the grid canal outlet and the valve lock of water collecting settling pond entrance are opened, gravity flow enters the water collecting settling pond and passes through weight
Power sedimentation is removed by lifting water pump injection solid-liquid separating machine progress separation of solid and liquid after fraction solids suspension, and obtained solid slag is sent
Organic Fertilizer Plants are transported to after entering excrement slag muck compost, waste liquid, which is discharged into, mixes well hydrolytic tank, regulating pondage, uniform water quality are simultaneously carried out tentatively
Hydrolysis acidification；
(2) waste water after pretreatment enters system for anaerobic treatment, open described in mix well hydrolytic tank and the IC efficiently detests
Gate valve after oxygen reactor or the connection of ACS high efficiency anaerobic reactors, being not less than for hydrolytic tank is mixed well using water pump is lifted by described
In 20 DEG C of waste water injection IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, big portion is removed after being digested through efficient anaerobic
The organic pollution divided, while producing biogas and biogas slurry, biogas slurry enters anaerobic precipitation pond after flowing into desulfurization aeration tank oxidation sweetening
Mud-water separation is carried out, biogas supplies steam boiler for subsequently using after being collected, purify into collecting methane and disposal system,
The partial sludge in the anaerobic precipitation pond is pumped into anaerobic reactor reuse by sludge reflux water pump, and periodically will by sludge pump
The sludge of aging drains into sludge condensation in the IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors and anaerobic precipitation pond
Pond；
(3) waste water after Anaerobic Treatment passes sequentially through one-level A/O, second pond, two into the processing of Aerobic Process for Treatment system
Level A/O biological agent, removes and enters aerobic ponds in waste water after most of not degradable organic matter and ammonia nitrogen, and to two grades of A/
Dephosphorization agent is quantitatively added in O aerobic ponds, phosphorus containg substances in waste water are removed, the partial sludge of the second pond passes back into described one
Level A/O pond reuses, periodically drain into sludge concentration tank by sludge pump by the sludge of aging in the second pond；
(4) waste water after the Aerobic Process for Treatment system denitrogenation dephosphorizing enters advanced treatment system, passes through lifting first
Water pump injects waste water in MBR reaction tanks, is aerated using air blower to aerator, on the one hand provides abundance for biomembrane
Oxygen, on the other hand promotes biomembrane constantly to shake, and blocked up sludge blanket is shaken off, and is made by the choked flow and microbial degradation of film
Organic pollution is removed with further, the waste water injection electroxidation after MBR reaction tanks processing is decolourized using water pump is lifted
In device, undegradable organic pollution, suspension and colourity are finally removed by the redox of battery lead plate and drained into clearly
Column is rushed in pond qualified discharge or reuse, and the wherein sludge of MBR reaction tanks is back to two grades of A/O ponds reuses using water pump is lifted,
The aging sludge of MBR reaction tanks is periodically drained into by sludge concentration tank by sludge pump；
(5) sludge that step (2)~(4) are discharged into sludge concentration tank is pumped into reactive tank by lifting water pump, to anti-
Answer groove to add cationic PAM, be dehydrated after flocculation separation using dewaterer, obtain dry mud, dry mud transports outward recycling, described
The supernatant of sludge concentration tank is back to the hydrolytic tank of mixing well and carries out subsequent treatment.
(6) when the wastewater temperature that hydrolytic tank discharge is mixed well in the step (2) is less than 20 DEG C, hydrolytic tank is mixed well described in unlatching
With the gate valve of heat exchanger junction, the heat exchanger is discharged into, is produced using steam boiler in collecting methane and disposal system
Steam to the waste water heating and thermal insulation in the heat exchanger, reach and be discharged into IC high efficiency anaerobic reactors or ACS again after 20 DEG C
Anaerobic digestion is carried out in high efficiency anaerobic reactor.
The pretreatment system also includes a kind of emergency processing method, opens the grid canal outlet and totally-enclosed anaerobic pond
The valve lock of inlet connection, emergent be discharged into after totally-enclosed anaerobic pond of waste water flows into collecting-tank after anaerobic fermentation, Ran Houzai
Enter water collecting settling pond in the presence of lifting water pump and carry out subsequent treatment, the biogas that anaerobic fermentation is produced herein sends into the first gas
Separator processing.
The present invention has the advantages that compared with the prior art：
(1) stable effluent quality reaches after present invention processing《Livestock and poultry breeding industry pollutant emission standard》(GB18596-
2001) pollutant emission limit in, rushes column, aquaculture available for breeding or is discharged into the class water body of earth's surface three；
(2) non-secondary pollution of the present invention, excrement slag, biogas, sludge collect reuse, the biogas of generation by steam boiler to
Heat exchanger heat supply makes anaerobic digestion reaction not limited by low temperature environment, and economic and ecological, environmental protective benefit is protruded；
(3) Waste Water Treatment floor space of the invention is small, automaticity is high, treatment effeciency is high, wide adaptability.
Brief description of the drawings
Fig. 1 is the MBR reaction tank structural representations of advanced treatment system in the present invention；
Fig. 2 is process flow figure.
Reference：11.MBR filtering film components, 12. aerators, 13. air blowers
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Embodiment：As shown in Fig. 2 a kind of Large-scale pig farm culturing wastewater processing system, includes the pre- place being sequentially connected
Reason system, system for anaerobic treatment, Aerobic Process for Treatment system and advanced treatment system；
As shown in Fig. 2 the pretreatment system include be sequentially connected grid canal, water collecting settling pond, solid-liquid separating machine and
Hydrolytic tank is mixed well, the entrance of the water collecting settling pond is provided with gate valve；
As shown in Fig. 2 the system for anaerobic treatment includes IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, taken off
Sulphur aeration tank, anaerobic precipitation pond, heat exchanger, collecting methane and disposal system and sludge treatment system, the IC efficient anaerobics
The water inlet of reactor or ACS high efficiency anaerobic reactors is connected with the delivery port for mixing well hydrolytic tank, and junction is provided with lock
Valve；The IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, desulfurization aeration tank, anaerobic precipitation pond are sequentially connected, described
The water inlet of heat exchanger is connected with the delivery port for mixing well hydrolytic tank, and junction is provided with gate valve, the heat exchanger
Delivery port is connected with the water inlet of the IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors；
As shown in Fig. 2 the Aerobic Process for Treatment system includes one-level A/O ponds, second pond and the two grades of A/O ponds being sequentially connected,
The water inlet of the one-level A/O is connected with the delivery port in the anaerobic precipitation pond；
As shown in Fig. 2 the advanced treatment system includes the MBR reaction tanks being sequentially connected, electroxidation decoloration device and clear
Pond, the water inlet of the MBR reaction tanks is connected with the delivery port of two grades of A/O.
As shown in Fig. 2 the collecting methane in the system for anaerobic treatment includes the first gas being sequentially connected with disposal system
Separator, desulfurizer, biogas container, the second moisture trap, methane booster and steam boiler, the Treatment of Sludge system
System includes sludge concentration tank, reactive tank, the dewaterer composition being sequentially connected, and the steam boiler is made by conveyance conduit to steam
Steam is conveyed with point and the heat exchanger.
As shown in Fig. 2 the pretreatment system also include a kind of Emergency Exhaust System, the Emergency Exhaust System include according to
Totally-enclosed anaerobic pond, the collecting-tank of secondary connection, the totally-enclosed anaerobic pond entrance are connected with grid canal outlet, and connection
Place is provided with gate valve, and the delivery port of the collecting-tank is connected by water pump with the water inlet of the water collecting settling pond.
As shown in Fig. 2 the IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors pass through pipeline and first gas
Separator is connected, and totally-enclosed anaerobic pond is connected by pipeline with first moisture trap.
As shown in Fig. 2 the IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, anaerobic precipitation pond, second pond,
The mud discharging mouthful of MBR reaction tanks is connected by sludge pump with the entrance of the sludge concentration tank, the anaerobic precipitation pond
Pass through sludge reflux water between the sludge reflux mouthful of mud discharging mouthful and IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors
Pump is connected, and is connected between the mud discharging mouthful of the second pond and the sludge reflux mouthful in one-level A/O ponds by sludge reflux water pump,
Connected between the mud discharging mouthful of the MBR reaction tanks and two grades of A/O sludge reflux mouthful by sludge reflux water pump, the dirt
Mud thickener delivery port is connected with the entrance for mixing well hydrolytic tank.
As depicted in figs. 1 and 2, MBR filtering film components 11, the MBR filtering film components are provided with the MBR reaction tanks
Bottom is equipped with aerator 12, and the MBR reaction tanks bottom of pond portion is provided with air blower 13, the air inlet of the aerator 12 and institute
The gas outlet for stating air blower 13 is connected.
Robot control system(RCS) PLC is provided with the present embodiment and controls the water pump, the operation of air blower, there is provided on-line monitoring control
Make the collecting methane and disposal system, water pump, the operation of air blower.
In the present embodiment, what anaerobic reactor was chosen is ACS high efficiency reactors.
In the present embodiment, the selection of MBR membrane modules is 0.04 μm of miillpore filter in MBR reaction tanks.
A kind of Large-scale pig farm cultivating wastewater purification method, comprises the following steps：
(1) Wastewater from Pig Farm initially enters pretreatment system and pre-processed, and waste water removes the drift of bulk by grid canal
After float, the grid canal outlet and the valve lock of water collecting settling pond entrance are opened, gravity flow enters the water collecting settling pond and passes through weight
Power sedimentation is removed by lifting water pump injection solid-liquid separating machine progress separation of solid and liquid after fraction solids suspension, and obtained solid slag is sent
Organic Fertilizer Plants are transported to after entering excrement slag muck compost, waste liquid, which is discharged into, mixes well hydrolytic tank, regulating pondage, uniform water quality are simultaneously carried out tentatively
Hydrolysis acidification；
(2) waste water after pretreatment enters system for anaerobic treatment, open described in mix well hydrolytic tank and the IC efficiently detests
Gate valve after oxygen reactor or the connection of ACS high efficiency anaerobic reactors, being not less than for hydrolytic tank is mixed well using water pump is lifted by described
In 20 DEG C of waste water injection IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, big portion is removed after being digested through efficient anaerobic
The organic pollution divided, while producing biogas and biogas slurry, biogas slurry enters anaerobic precipitation pond after flowing into desulfurization aeration tank oxidation sweetening
Mud-water separation is carried out, biogas supplies steam boiler for subsequently using after being collected, purify into collecting methane and disposal system,
The partial sludge in the anaerobic precipitation pond is pumped into anaerobic reactor reuse by sludge reflux water pump, and periodically will by sludge pump
The sludge of aging drains into sludge condensation in the IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors and anaerobic precipitation pond
Pond；
(3) waste water after Anaerobic Treatment passes sequentially through one-level A/O, second pond, two into the processing of Aerobic Process for Treatment system
Level A/O biological agent, removes and enters aerobic ponds in waste water after most of not degradable organic matter and ammonia nitrogen, and to two grades of A/
Dephosphorization agent is quantitatively added in O aerobic ponds, phosphorus containg substances in waste water are removed, the partial sludge of the second pond passes back into described one
Level A/O pond reuses, periodically drain into sludge concentration tank by sludge pump by the sludge of aging in the second pond；
(4) waste water after the Aerobic Process for Treatment system denitrogenation dephosphorizing enters advanced treatment system, passes through lifting first
Water pump injects waste water in MBR reaction tanks, is aerated using air blower to aerator, on the one hand provides abundance for biomembrane
Oxygen, on the other hand promotes biomembrane constantly to shake, and blocked up sludge blanket is shaken off, and is made by the choked flow and microbial degradation of film
Organic pollution is removed with further, the waste water injection electroxidation after MBR reaction tanks processing is decolourized using water pump is lifted
In device, undegradable organic pollution, suspension and colourity are finally removed by the redox of battery lead plate and drained into clearly
Column is rushed in pond qualified discharge or reuse, and the wherein sludge of MBR reaction tanks is back to two grades of A/O ponds reuses using water pump is lifted,
The aging sludge of MBR reaction tanks is periodically drained into by sludge concentration tank by sludge pump；
(5) sludge that step (2)~(4) are discharged into sludge concentration tank is pumped into reactive tank by lifting water pump, to anti-
Answer groove to add cationic PAM, be dehydrated after flocculation separation using dewaterer, obtain dry mud, dry mud transports outward recycling, described
The supernatant of sludge concentration tank is back to the hydrolytic tank of mixing well and carries out subsequent treatment.
(6) when the wastewater temperature that hydrolytic tank discharge is mixed well in the step (2) is less than 20 DEG C, hydrolytic tank is mixed well described in unlatching
With the gate valve of heat exchanger junction, the heat exchanger is discharged into, is produced using steam boiler in collecting methane and disposal system
Steam to the waste water heating and thermal insulation in the heat exchanger, reach and be discharged into IC high efficiency anaerobic reactors or ACS again after 20 DEG C
Anaerobic digestion is carried out in high efficiency anaerobic reactor.
The pretreatment system also includes a kind of emergency processing method, opens the grid canal outlet and totally-enclosed anaerobic pond
The valve lock of inlet connection, emergent be discharged into after totally-enclosed anaerobic pond of waste water flows into collecting-tank after anaerobic fermentation, Ran Houzai
Enter water collecting settling pond in the presence of lifting water pump and carry out subsequent treatment, the biogas that anaerobic fermentation is produced herein sends into the first gas
Separator processing.
Do not pre-processed in the present embodiment using emergency processing method.
In the present embodiment, the wastewater temperature into ACS high efficiency anaerobic reactors is controlled at 20 DEG C~35 DEG C.The present embodiment
In：Each stage effluent treatment effect is as follows, and final discharge meets national standard.
It is described above, it is only the preferably specific case of the present invention, but protection scope of the present invention is not limited thereto, and it is any
Those familiar with the art the invention discloses technical scope in, the change or replacement that can be readily occurred in, all should
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.
Claims (10)
1. a kind of Large-scale pig farm culturing wastewater processing system, it is characterised in that comprising the pretreatment system being sequentially connected, detest
Oxygen processing system, Aerobic Process for Treatment system and advanced treatment system；
The pretreatment system includes the grid canal being sequentially connected, water collecting settling pond, solid-liquid separating machine and mixes well hydrolytic tank, described
The entrance of water collecting settling pond is provided with gate valve；
The system for anaerobic treatment sinks comprising IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors, desulfurization aeration tank, anaerobism
Shallow lake pond, heat exchanger, collecting methane and disposal system and sludge treatment system, the IC high efficiency anaerobic reactors or ACS are efficient
The water inlet of anaerobic reactor is connected with the delivery port for mixing well hydrolytic tank, and junction is provided with gate valve；The IC efficiently detests
Oxygen reactor or ACS high efficiency anaerobic reactors, desulfurization aeration tank, anaerobic precipitation pond are sequentially connected, the water inlet of the heat exchanger
Mouth is connected with the delivery port for mixing well hydrolytic tank, and junction is provided with gate valve, the delivery port of the heat exchanger and the IC
The water inlet connection of high efficiency anaerobic reactor or ACS high efficiency anaerobic reactors；
The Aerobic Process for Treatment system includes one-level A/O ponds, second pond and the two grades of A/O ponds being sequentially connected, and the one-level A/O's enters
The mouth of a river is connected with the delivery port in the anaerobic precipitation pond；
The advanced treatment system includes MBR reaction tanks, electroxidation decoloration device and the clear water reserviors being sequentially connected, and the MBR is anti-
Ying Chi water inlet is connected with the delivery port of two grades of A/O.
2. Large-scale pig farm culturing wastewater processing system as claimed in claim 1, it is characterised in that：The Anaerobic Treatment system
Collecting methane in system includes the first moisture trap, desulfurizer, biogas container, the second gas that are sequentially connected with disposal system
Separator, methane booster and steam boiler, the sludge treating system include the sludge concentration tank being sequentially connected, reaction
Groove, dewaterer composition, the steam boiler convey steam by conveyance conduit to steam point of use and the heat exchanger.
3. Large-scale pig farm culturing wastewater processing system as claimed in claim 1, it is characterised in that：The pretreatment system
A kind of Emergency Exhaust System is also included, the Emergency Exhaust System includes totally-enclosed anaerobic pond, the collecting-tank being sequentially connected, described
Totally-enclosed anaerobic pond entrance is connected with grid canal outlet, and junction is provided with gate valve, and the delivery port of the collecting-tank leads to
The water inlet that water pump is crossed with the water collecting settling pond is connected.
4. the Large-scale pig farm culturing wastewater processing system as described in claim 1,2 or 3, it is characterised in that：The IC is high
Effect anaerobic reactor or ACS high efficiency anaerobic reactors are connected by pipeline with first moisture trap, totally-enclosed anaerobism
The pool is connected by pipeline with first moisture trap.
5. Large-scale pig farm culturing wastewater processing system as claimed in claim 4, it is characterised in that：The IC efficient anaerobics
Reactor or ACS high efficiency anaerobic reactors, anaerobic precipitation pond, second pond, the mud discharging mouthful of MBR reaction tanks by sludge pump and
The entrance of the sludge concentration tank is connected, the mud discharging mouthful and IC high efficiency anaerobic reactors or ACS in the anaerobic precipitation pond
Connected between the sludge reflux mouthful of high efficiency anaerobic reactor by sludge reflux water pump, the mud discharging mouthful of the second pond and one
Connected between the sludge reflux mouthful in level A/O ponds by sludge reflux water pump, the mud discharging mouthful and two grades of A/ of the MBR reaction tanks
Connected between O sludge reflux mouthful by sludge reflux water pump, the sludge concentration tank delivery port and the entrance for mixing well hydrolytic tank
It is connected.
6. Large-scale pig farm culturing wastewater processing system as claimed in claim 1, it is characterised in that：The MBR reaction tanks
MBR filtering film components are inside provided with, the MBR filtering film components bottom is equipped with aerator, and the MBR reaction tanks bottom of pond portion is set
There is air blower, the air inlet of the aerator is connected with the gas outlet of the air blower.
7. Large-scale pig farm culturing wastewater processing system as claimed in claim 6, it is characterised in that：There is provided robot control system(RCS)
PLC controls the water pump, the operation of air blower, there is provided on-line monitoring controls the collecting methane and disposal system, water pump, drum
The operation of blower fan.
8. Large-scale pig farm culturing wastewater processing system as claimed in claim 1, it is characterised in that：The electroxidation is decolourized
Organic Pollutants in Wastewater can be removed using anodizing reduction reaction, make the battery lead plate of waste water decoloring by containing in device.
9. a kind of Large-scale pig farm cultivating wastewater purification method, it is characterised in that comprise the following steps：
(1) Wastewater from Pig Farm initially enters pretreatment system and pre-processed, and waste water removes the floating object of bulk by grid canal
Afterwards, the grid canal outlet and the valve lock of water collecting settling pond entrance are opened, it is heavy by gravity that gravity flow enters the water collecting settling pond
Remove except separation of solid and liquid is carried out by lifting water pump injection solid-liquid separating machine after fraction solids suspension, obtained solid slag sends into excrement
Organic Fertilizer Plants are transported to after slag muck compost, and waste liquid, which is discharged into, mixes well hydrolytic tank, and regulating pondage, uniform water quality simultaneously carry out preliminary hydrolysis
Acidifying；
(2) waste water after pretreatment enters system for anaerobic treatment, open described in mix well hydrolytic tank and the IC efficient anaerobics are anti-
Answer device or ACS high efficiency anaerobic reactors connect after gate valve, using lifted water pump by it is described mix well hydrolytic tank be not less than 20 DEG C
Waste water injection IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors in, removed after being digested through efficient anaerobic most
Organic pollution, while producing biogas and biogas slurry, biogas slurry, which is flowed into, enters the progress of anaerobic precipitation pond after the oxidation sweetening of desulfurization aeration tank
Mud-water separation, supply steam boiler is described for subsequently using after biogas is collected, purified into collecting methane and disposal system
The partial sludge in anaerobic precipitation pond is pumped into anaerobic reactor reuse by sludge reflux water pump, and periodically will be described by sludge pump
The sludge of aging drains into sludge concentration tank in IC high efficiency anaerobic reactors or ACS high efficiency anaerobic reactors and anaerobic precipitation pond；
(3) waste water after Anaerobic Treatment passes sequentially through one-level A/O, second pond, two grades of A/ into the processing of Aerobic Process for Treatment system
O biological agent, removes and enters aerobic ponds in waste water after most of not degradable organic matter and ammonia nitrogen, and to two grades of A/O's
Dephosphorization agent is quantitatively added in aerobic ponds, phosphorus containg substances in waste water are removed, the partial sludge of the second pond passes back into the one-level
The reuse of A/O ponds, periodically drains into sludge concentration tank by sludge pump by the sludge of aging in the second pond；
(4) waste water after the Aerobic Process for Treatment system denitrogenation dephosphorizing enters advanced treatment system, first by lifting water pump
Waste water is injected in MBR reaction tanks, is aerated using air blower to aerator, the oxygen of abundance is on the one hand provided for biomembrane
Gas, on the other hand promotes biomembrane constantly to shake, and blocked up sludge blanket is shaken off, choked flow and microbiological deterioration by film
Organic pollution is further removed, the waste water injection electroxidation after MBR reaction tanks processing decolourizes to fill using water pump is lifted
In putting, undegradable organic pollution, suspension and colourity are finally removed by the redox of battery lead plate and drain into clear water
Column is rushed in pond qualified discharge or reuse, and the wherein sludge of MBR reaction tanks is back to two grades of A/O ponds reuses using water pump is lifted, fixed
The aging sludge of MBR reaction tanks is drained into sludge concentration tank by the phase by sludge pump；
(5) sludge that step (2)~(4) are discharged into sludge concentration tank is pumped into reactive tank by lifting water pump, to reactive tank
Cationic PAM is added, is dehydrated after flocculation separation using dewaterer, dry mud is obtained, dry mud transports outward recycling, the sludge
The supernatant of concentration basin is back to the hydrolytic tank of mixing well and carries out subsequent treatment.
(6) when the wastewater temperature that hydrolytic tank discharge is mixed well in the step (2) is less than 20 DEG C, hydrolytic tank and heat are mixed well described in unlatching
The gate valve of exchanger junction, is discharged into the heat exchanger, the steaming produced using steam boiler in collecting methane and disposal system
Vapour is discharged into IC high efficiency anaerobic reactors after reaching 20 DEG C or ACS is efficient again to the waste water heating and thermal insulation in the heat exchanger
Anaerobic digestion is carried out in anaerobic reactor.
10. Large-scale pig farm cultivating wastewater purification method as claimed in claim 9, it is characterised in that：The pretreatment system
System also includes a kind of emergency processing method, opens the grid canal outlet and the valve lock of totally-enclosed anaerobic pond inlet connection, gives up
Emergent be discharged into after totally-enclosed anaerobic pond of water flows into collecting-tank after anaerobic fermentation, then enters again in the presence of lifting water pump
Enter water collecting settling pond and carry out subsequent treatment, the biogas that anaerobic fermentation is produced herein sends into the processing of the first moisture trap.
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| CN109289498A (en) * | 2018-10-17 | 2019-02-01 | 浙江大学城市学院 | A kind of identification of municipal sewage plant's foul gas feature and deodorization technology |
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| CN113735382A (en) * | 2021-09-24 | 2021-12-03 | 江苏卓博环保科技有限公司 | Pig farm pig manure wastewater recycling treatment device and method |
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