CN107253804A - A kind of livestock and poultry cultivation sewage disposal and method of comprehensive utilization - Google Patents
A kind of livestock and poultry cultivation sewage disposal and method of comprehensive utilization Download PDFInfo
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- CN107253804A CN107253804A CN201710627284.0A CN201710627284A CN107253804A CN 107253804 A CN107253804 A CN 107253804A CN 201710627284 A CN201710627284 A CN 201710627284A CN 107253804 A CN107253804 A CN 107253804A
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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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/06—Controlling or monitoring parameters in water treatment pH
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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
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/22—O2
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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
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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
- C02F3/28—Anaerobic digestion processes
- C02F3/2813—Anaerobic digestion processes using anaerobic contact processes
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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
- C02F3/301—Aerobic and anaerobic treatment in the same reactor
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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
- C02F3/302—Nitrification and denitrification treatment
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/347—Use of yeasts or fungi
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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
- C02F3/34—Biological treatment of water, waste water, or sewage characterised by the microorganisms used
- C02F3/348—Biological treatment of water, waste water, or sewage characterised by the microorganisms used characterised by the way or the form in which the microorganisms are added or dosed
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
- Treatment Of Sludge (AREA)
Abstract
The invention discloses a kind of livestock and poultry cultivation sewage disposal and method of comprehensive utilization, step is followed successively by the separation of solid and liquid of sewage, Anaerobic Treatment is carried out using anaerobic processing device, Composite denitrification is carried out using Composite denitrification device, carries out Aerobic biological process using compound aerobic device；Purifying water micrcxDrganism microbial inoculum is combined by the present invention with different sewage treatment process, and anaerobic organism microbial inoculum can improve anaerobic system factor of created gase, and aerobe microbial inoculum can improve conversion and removal efficiency of the aerobic biochemical system to COD and ammonia nitrogen.By the dirty water pollutant of high-effective microorganism fast decoupled, qualified discharge standard is reached, or as column Water circulation is rushed, realize energy-saving and emission-reduction, cost is low, application easy to spread purpose.Biochemical system is effectively ensured using the automatic control system including dissolved oxygen on-line computing model, pH on-line computing models in whole process normally to run, it is to avoid the impact that cultivation water intermittent discharge change in concentration shines it.
Description
Technical field
The invention belongs to sewage disposal and utilize technical field, and in particular to a kind of livestock and poultry cultivation sewage disposal and comprehensive profit
With method, it is adaptable to the harmless treatment and qualified discharge water and comprehensive utilization of sewage and biogas slurry.
Background technology
Fast development and scale, intensive livestock and poultry breeding industry the are concentrated, large amount of sewage of high concentration discharge and natural pond
Liquid, is a very important important pollution sources to environment.
Livestock and poultry sewage is three high organic sewages of a kind of high COD, high suspended matter, high ammonia nitrogen, during livestock and poultry cultivation
The not timing of industrial water, causes this kind of sewage to have concentration of suspension high, intermittent big, and pollution concentration is uneven to wait special
Point.In sewage treatment facility running, the control of pH, dissolved oxygen and sludge quantity condition determines sewage treating efficiency, and sewage
The change of characteristic, causes above-mentioned parameter easily to change, and manual adjustment can not be met.
Therefore need a kind of preferable livestock and poultry integrated wastewater processing to utilize technique, combined using simple handling process automatic
Control system, can automatically adjust sewage treatment facility operational factor, and control technique meets pollution during livestock and poultry cultivation waste water control
Low impact when high during thing concentration, makes sewage disposal system stable.
Currently available technology biological comprehensive treatment.For example, patent of invention CN10280732A be separation of solid and liquid processing and
Improvement type oxidation ditch is handled sewage of farm, but only treatment facility operational factor requires but how realized not reach
To the control of automation.For another example, patent of invention CN102701512A handles natural pond using the group technology of biochemical process combination physico-chemical process
Liquid, major technique includes stripping and SBR treatment technologies, the ammonia and nitrogen pollution surrounding enviroment that stripping is produced, it is impossible to large-scale promotion.Hair
Bright patent CN10270283A is, using anaerobic bacteria and aerobic bacterial strain trichoderma and saccharomycete as main bacterial strain, to pass through immobilization embedded skill
Art, realizes the sewage for efficiently repairing livestock and poultry cultivation.
Above-mentioned patent final purpose is qualified discharge, and facility operation parameter can not realize automatic running control, and can not be real
Existing system controls, can not reach the requirement of comprehensive utilization reuse steadily in the long term, causes the waste of great lot of water resources.
The content of the invention
It is an object of the invention to according to the deficiencies in the prior art, design a kind of livestock and poultry cultivation sewage disposal and comprehensive utilization
Purifying water micrcxDrganism microbial inoculum is combined by method, this method with different sewage treatment process, and anaerobic organism microbial inoculum, which can be improved, to be detested
Oxygen system factor of created gase, aerobe microbial inoculum can improve conversion and removal efficiency of the aerobic biochemical system to COD and ammonia nitrogen, pass through
High-effective microorganism fast decoupled dirt water pollutant, reaches qualified discharge standard, or as column Water circulation is rushed, realize that energy-conservation subtracts
Row, cost is low, application easy to spread purpose.Existed in whole process using online dissolved oxygen meter, sludge photoelectric detector and PH
Line monitor can be effectively ensured biochemical system and normally run, it is to avoid cultivation water intermittent discharge change in concentration is to rushing that it shines
Hit.
The technical solution adopted for the present invention to solve the technical problems is：A kind of livestock and poultry cultivation sewage disposal and comprehensive utilization
Method, comprises the following steps：
A, sewage separation of solid and liquid
The sewage that poultry house is collected in into cesspool passes through waterpower screen cloth separator for processing, carries out in sewage after separation of solid and liquid next
Level biochemical treatment, the dejecta moisture 70-80% isolated is used as composting material；
B, Anaerobic Treatment
Sewage after separation of solid and liquid enters the anaerobic processing device of closing, hydraulic detention time 2-6 days；By the COD conversions in water
For biogas, take off the sewage after COD and continue to precipitate, or so sedimentation time 6-12 hour, anaerobism supernatant biogas slurry gravity flow enters next stage
Composite denitrification device, the anaerobic sludge of precipitation is pumped in anaerobic processing device by pipeline pump, supplements the anaerobic sludge being lost in；
C, Composite denitrification processing
The gravity flow of anaerobism biogas slurry enters Composite denitrification device, hydraulic detention time 1-2 days, while containing for compound aerobe pond is lived
Property sludge water be back to Composite denitrification device, in the presence of denitrifying bacteria, turn NO3-N and NO2-N in sewage
Nitrogen is turned to, the total nitrogen content in sewage is reduced；
In Composite denitrification device half using aeration mixing agitating mode, second half using diving mixer stir by the way of,
Dissolved oxygen control in mixed zone is aerated in pond in 0.8-1mg/L, dissolved oxygen control in submersible agitating mixed zone is less than 1mg/L；
D, compound Aerobic biological process
The gravity flow of anaerobic denitrification biogas slurry, which enters, is combined aerobic device, hydraulic detention time 2-3 days, the COD's and ammonia nitrogen in raising water
Dissolved oxygen in decomposition and inversion efficiency, adjusting means, dissolved oxygen control continues to precipitate in 1-3mg/L, then sewage, the sedimentation time
3-6 hours or so, supernatant gravity flow entered next stage sterilization pool, and the aerobic sludge of precipitation is pumped to Composite denitrification by pipeline pump
In device, the sludge being lost in is supplemented, excess sludge is periodically discharged into sludge dehydration device, and sewage backflow to the Anaerobic Treatment of abjection is filled
Put, the sludge of abjection is used for compost.
A kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, when described step b carries out Anaerobic Treatment, detest
Initial operating stage adds acetobacter, Propionibacterium, three kinds of clostridium butyricum combination microbial inoculums in oxygen processing unit, microbial inoculum dosage according to
Device volume calculations unit dosage is acetobacter 0.1-0.5g/m3, Propionibacterium 0.1-0.5g/m3, clostridium butyricum 0.1-
0.5g/m3, device is normally after operation, and 3-6 adds a nitrobacteria and bacillus subtilis for individual month, and unit dosage is acetic acid
Bacillus 0.01-0.05g/m3, Propionibacterium 0.01-0.05g/m3, clostridium butyricum 0.01-0.05g/m3。
A kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, its anaerobic processing device are filled including anaerobic reaction
Put and use Reinforced Concrete Structure or carbon steel anticorrosion structure with anaerobic precipitation pond, described anaerobic processing device, its outer wall is provided with insulation
Material, its length-width ratio is 3:1, height 4-5m；Plug-flow stirring is carried out using submersible agitator inside described anaerobic reaction device,
COD in water is rapidly converted into biogas；Described anaerobic reaction device bottom is provided with collecting methane mouthful, by force (forcing) pump and de-
Enter dry gas-holder Collection utilization after sulphur dehydrating unit；Described anaerobic reaction device inwall, which is provided with U-tube road, pipe, electricity
Heater, pipeline water is biochemistry pool outlet water at tail end；Described anaerobic precipitation pond is arranged on the outlet ends of anaerobic reaction device,
Or so sedimentation time 6-12 hour, anaerobism supernatant biogas slurry gravity flow enters next stage Composite denitrification device, and the anaerobic sludge of precipitation leads to
Piping pump is pumped in anaerobic reaction device, supplements the anaerobic sludge being lost in.
Carried out in a kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, described step c at Composite denitrification
During reason, initial operating stage adds denitrification bacillus and saccharomycete in Composite denitrification device, and microbial inoculum dosage is according to device volume calculations
Unit dosage is denitrification bacillus 0.1-0.5g/m3, saccharomycete 0.1-0.5g/m3, device is normally after operation, and 3-6 is added for individual month
Denitrification bacillus and saccharomycete, unit dosage are denitrification bacillus 0.01-0.05mL/m3, saccharomycete 0.01-0.05g/
m3。
A kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, its Composite denitrification device using Reinforced Concrete Structure or
Carbon steel anticorrosion structure, its outer wall is provided with insulation material, length-width ratio 3:1, height 4-5m；Composite denitrification device includes submersible agitating
Mixed zone and aeration mixed zone, described submersible agitating mixed zone bottom is provided with submersible agitator, described aeration mixed zone
Bottom is provided with aerating system, and described aerating system includes multiple aerators；It is additionally provided with described Composite denitrification device
PH on-line computing models, the water that Composite denitrification device is back to containing activated sludge water that control is combined aerobic device is changed by pH
Amount, the reflux pump run time that water is set by compound aerobic device is controlled, and works as pH<7.5 backflow pump operations, work as pH>9 reflux pumps
Close.
Carry out being combined aerobic life in a kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, described step d
During thing processing, it is combined initial operating stage in aerobic device and adds nitrobacteria, bacillus subtilis, microbial inoculum dosage holds according to device
Product unit of account dosage is nitrobacteria 0.1-0.5mL/m3, bacillus subtilis 0.1-0.5g/m3, after device is normally run,
A nitrobacteria and bacillus subtilis are added within 3-6 months, unit dosage is nitrobacteria 0.01-0.05mL/m3, withered grass
Bacillus 0.01-0.05g/m3。
A kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, it, which is combined aerobic device, includes being combined aerobic place
Area and compound aerobic sedimentation tank are managed, described compound aerobic device uses Reinforced Concrete Structure or carbon steel anticorrosion structure, and its outer wall is set
There is insulation material, length-width ratio is 3:1, height 4-5m；Described compound Aerobic Process for Treatment area bottom is equipped with aerating system, and described answers
Get togather oxygen treatment region middle and upper part and be from left to right disposed with combined stuffing area, non-packing area and combined stuffing area, described group
Close to be provided with combined stuffing, described combined stuffing in packing area and be provided with biomembrane, grown simultaneously in the biomembrane of attachment
Facultative microbe and aerobic microbiological, nitrification and denitrification are synchronously carried out；It is aerobic that described non-packing area is produced
Activated sludge, only occurs nitrification and aerobic reaction；Produced by combined stuffing area and the combination of non-packing area in same device
It is raw to form different microorganism species, different biochemical reactions are produced, the decomposition and inversion efficiency of the COD and ammonia nitrogen in water is improved；
Dissolved oxygen on-line computing model and fan frequency converter coordinated signals are installed in described compound Aerobic Process for Treatment area, become by blower fan frequency
Change, control aerating system enters the air capacity for being combined aerobic device, so that the dissolved oxygen in adjusting means, dissolved oxygen is controlled in 1-
3mg/L；PH on-line computing models are installed in described compound Aerobic Process for Treatment area, and linked with pH adjustment systems, PH regulation dresses
The medicament put is the solution of mass fraction 30% -50% of quick lime or sodium carbonate or sodium hydroxide, works as pH<When 6.5, PH regulation dresses
The alkali lye put is automatically flowed into device, works as pH>Stopped flow into when 7.5；Described compound aerobic sedimentation tank is arranged on compound aerobic
Treatment region outlet ends, 3-6 hours or so the settlement of sewage time of entrance, supernatant gravity flow enters next stage sterilization pool, precipitation
Aerobic sludge be pumped to by pipeline pump in Composite denitrification device, supplement the sludge being lost in, excess sludge is periodically discharged into sludge
Dehydration device, the sewage backflow of abjection is to anaerobic processing device, and the sludge of abjection is used for compost.
A kind of described livestock and poultry cultivation sewage disposal and method of comprehensive utilization, described pH adjusting meanss using fiberglass or
Carbon steel anticorrosion structure, its outer wall is provided with the thinned water that alkali is provided with insulation material, pH adjusting meanss, from elevator pump
The tail water of the compound aerobic device processing of conveying, and lift pump operation with liquid level gauge control.
The beneficial effects of the invention are as follows：
Purifying water micrcxDrganism microbial inoculum is combined by the present invention with different sewage treatment process, and anaerobic organism microbial inoculum can improve anaerobism
System factor of created gase, aerobe microbial inoculum can improve conversion and removal efficiency of the aerobic biochemical system to COD and ammonia nitrogen.Pass through height
The dirty water pollutant of microorganism fast decoupled is imitated, qualified discharge standard is reached, or as column Water circulation is rushed, realizes energy-saving and emission-reduction,
Cost is low, application easy to spread purpose.Can be had using dissolved oxygen on-line computing model and pH on-line computing models in whole process
Effect ensures that biochemical system is normally run, it is to avoid the impact that cultivation water intermittent discharge change in concentration is shone it.
Brief description of the drawings
Fig. 1 is the flow chart of the present invention；
Fig. 2 is the structural representation of anaerobic processing device of the present invention；
Fig. 3 is the structural representation of Composite denitrification device of the present invention；
Fig. 4 is the structural representation that the present invention is combined aerobic device.
Each reference is：1-submersible agitator, 2-anaerobic processing device, 21-anaerobic reaction device, 22-anaerobism
Sedimentation basin, 3-Composite denitrification device, 31-submersible agitating mixed zone, 32-aeration mixed zone, 4-be combined aerobic device, 41-
Compound Aerobic Process for Treatment area, 42-it is combined aerobic sedimentation tank, 5-pH on-line computing models, 6-aerating system, 7-dissolved oxygen on-line monitoring
Instrument, 8-combined stuffing.
Embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to shown in Fig. 4, the invention discloses a kind of livestock and poultry cultivation sewage disposal and method of comprehensive utilization, including
Following steps：
1）The separation of solid and liquid of sewage：Poultry house is collected in into the sewage of cesspool by waterpower screen cloth seperator with conventional method
Next stage biochemical treatment is carried out after reason, separation of solid and liquid in sewage, the dejecta moisture 70-80% isolated can be former as compost
Material；
2）Anaerobic Treatment：The mode that sewage after separation of solid and liquid is carried out into Anaerobic Treatment is, into the anaerobic processing device of closing
2, described anaerobic processing device 2 includes anaerobic reaction device 21 and anaerobic precipitation pond 22, and described anaerobic processing device 2 can be adopted
With Reinforced Concrete Structure or carbon steel anticorrosion structure, its outer wall is provided with insulation material, and its length-width ratio is 3:1, height 4-5m, hydraulic retention
2-6 days time.
The described inside of anaerobic reaction device 21 carries out plug-flow stirring using submersible agitator 1, accelerates anaerobic reaction, by water
In COD be rapidly converted into biogas, carry out using energy source.
The described bottom of anaerobic reaction device 21 is provided with collecting methane mouthful, by entering after force (forcing) pump and desulfurization dehydrating unit
Dry gas-holder Collection utilization.
The described inwall of anaerobic reaction device 21, which is provided with U-tube road, pipe, electric heater unit, and pipeline water is biochemistry pool end
Water is brought out, is easy to winter to control reaction unit temperature at 30 DEG C -38 DEG C or so.
Described anaerobic precipitation pond 22 is arranged on the outlet ends of anaerobic reaction device 21, and sedimentation time 6-12 hour is left
The right side, anaerobism supernatant biogas slurry gravity flow enters next stage Composite denitrification device 3, and the anaerobic sludge of precipitation is pumped to anaerobism by pipeline pump
In processing unit 2, the anaerobic sludge being lost in is supplemented.
In anaerobic processing device 2, initial operating stage adds acetobacter, Propionibacterium, three kinds of combination microbial inoculums of clostridium butyricum, bacterium
Agent dosage is acetobacter 0.1-0.5g/m according to device volume calculations unit dosage3, Propionibacterium 0.1-0.5g/m3, fourth
Sour clostridium 0.1-0.5g/m3, device is normally after operation, and 3-6 adds a nitrobacteria and bacillus subtilis in individual month, and unit is thrown
Dosage is acetobacter 0.01-0.05g/m3, Propionibacterium 0.01-0.05g/m3, clostridium butyricum 0.01-0.05g/m3, microbial inoculum is total
Dosage is according to device volume calculations.
3）Composite denitrification processing：The gravity flow of anaerobism biogas slurry enters Composite denitrification device 3, and hydraulic detention time 1-2 days is simultaneously multiple
Get togather oxygen device 4 is back to Composite denitrification device 3 containing activated sludge water, in the presence of denitrifying bacteria, makes in sewage
NO3-N and NO2-N be converted into nitrogen, reduce the total nitrogen content in sewage.
Described Composite denitrification device 3 can use Reinforced Concrete Structure or carbon steel anticorrosion structure, and its outer wall is provided with insulation material,
Length-width ratio 3:1, height 4-5m, hydraulic detention time 1-2 days.
Composite denitrification device 3 includes submersible agitating mixed zone 31 and aeration mixed zone 32, described submersible agitating mixed zone
31 bottoms are provided with submersible agitator 1, and the described bottom of aeration mixed zone 32 is provided with aerating system 6, described aerating system 6
Including the multiple aerators set by rule；The control of the dissolved oxygen of mixed zone 32 is aerated in pond in 0.8-1mg/L, submersible agitating mixed zone
The control of 31 dissolved oxygens is less than 1mg/L.
In Composite denitrification device 3, initial operating stage adds denitrification bacillus and saccharomycete, and microbial inoculum dosage is according to device volume
Unit of account dosage is denitrification bacillus 0.1-0.5g/m3, saccharomycete 0.1-0.5g/m3, after device is normally run, 3-6 months
A denitrification bacillus and saccharomycete are added, unit dosage is denitrification bacillus 0.01-0.05mL/m3, saccharomycete 0.01-
0.05g/m3, the total dosage of microbial inoculum is according to device volume calculations.
PH on-line computing models 5 are additionally provided with described Composite denitrification device 3, aerobic device is combined by pH change controls
4 water that Composite denitrification device 3 is back to containing activated sludge water, water is transported by being combined the reflux pump that aerobic device 4 is set
Row time control, works as pH<7.5 backflow pump operations, work as pH>9 reflux pumps are closed.
4）Compound Aerobic biological process：The gravity flow of anaerobic denitrification biogas slurry, which enters, is combined aerobic device 4, described compound aerobic dress
Putting 4 includes compound Aerobic Process for Treatment area 41 and compound aerobic sedimentation tank 42, described compound aerobic device 4 can use Reinforced Concrete Structure or
Carbon steel anticorrosion structure, its outer wall is provided with insulation material, and length-width ratio is 3:1, height 4-5m, hydraulic detention time 2-3 days.
The described compound bottom of Aerobic Process for Treatment area 41 is equipped with aerating system 6, the described compound middle and upper part of Aerobic Process for Treatment area 41
From left to right it is disposed with combined stuffing area, non-packing area and combined stuffing area, described combined stuffing area and is provided with group
Close to be provided with filler 8, described combined stuffing 8 in biomembrane, the biomembrane of attachment and grow facultative microbe simultaneously and aerobic
Microorganism, nitrification and denitrification can be carried out synchronously；The aerobic activated sludge that described non-packing area is produced, only occurs
Nitrification and aerobic reaction；Produced in same device by combined stuffing area and the combination of non-packing area and form different micro- lifes
Thing flora, produces different biochemical reactions, improves the decomposition and inversion efficiency of the COD and ammonia nitrogen in water；
Dissolved oxygen on-line computing model 7 and fan frequency converter coordinated signals are installed in described compound Aerobic Process for Treatment area 41, pass through wind
Unit frequency changes, and can control aerating system 6 and enters the air capacity for being combined aerobic device 4, so that the dissolved oxygen in adjusting means, molten
Oxygen control is solved in 1-3mg/L.
PH on-line computing models 5 are installed in described compound Aerobic Process for Treatment area 41, and linked with pH adjustment systems, pH is adjusted
The medicament of regulating device is the solution of mass fraction 30% -50% of quick lime or sodium carbonate or sodium hydroxide, works as pH<When 6.5, pH is adjusted
The alkali lye of regulating device is automatically flowed into device, works as pH>Stopped flow into when 7.5.
In described compound Aerobic Process for Treatment area 41, initial operating stage adds nitrobacteria, bacillus subtilis, microbial inoculum dosage
It is nitrobacteria 0.1-0.5mL/m according to device volume calculations unit dosage3, bacillus subtilis 0.1-0.5g/m3, device
After normal operation, a nitrobacteria and bacillus subtilis are added within 3-6 months, unit dosage is nitrobacteria 0.01-
0.05mL/m3, bacillus subtilis 0.01-0.05g/m3, the total dosage of microbial inoculum is according to device volume calculations.
Described compound aerobic sedimentation tank 42 is arranged on the compound outlet ends of Aerobic Process for Treatment area 41, during the settlement of sewage of entrance
Between 3-6 hours or so, supernatant gravity flow enters next stage sterilization pool, and the aerobic sludge of precipitation is pumped to compound de- by pipeline pump
In nitrogen device 3, the sludge being lost in is supplemented, excess sludge is periodically discharged at sludge dehydration device, sewage backflow to the anaerobism of abjection
Device 2 is managed, the sludge of abjection is used for compost.
Described pH adjusting meanss can use fiberglass or carbon steel anticorrosion structure, and its outer wall is provided with insulation material, and pH is adjusted
The thinned water of alkali is provided with regulating device, the tail water that the compound aerobic device 4 conveyed from elevator pump is handled does not disappear additionally
Other water sources are consumed, and pump operation is lifted with liquid level gauge control；Alkali lye regulation in pH adjusting meanss is combined the pH side of aerobic device 4
Formula is that the flow for installing control alkali lye into compound Aerobic Pond with compound aerobic device 4 by electrically operated valve is controlled.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1：
By taking ten thousand pig farms as an example, using bubble excrement technique, COD 10000-20000mg/L, ammonia nitrogen 1000- in sewage
1500mg/L, SS 28000-35000mg/L, quantity of wastewater effluent 150t/d.
1）The liquid dung of pig house discharge is flowed into after collecting-tank by separation of solid and liquid separator for processing, excrement slag in water and is not digested
The solid that is separated of feed can be used for compost, the sewage SS after separation can be down to 20000mg/L.
2）Sewage after separation enters anaerobic processing device 2, and the organic matter of sewage is in anaerobic bacteria（Acetobacter, propionic acid bar
Bacterium, clostridium butyricum）In the presence of occur hydrolysis acidification reaction produce VFA (volatile fatty acids）, utilized by methane backeria and produce natural pond
Gas, sewage is changed into biogas slurry.
The volume of anaerobic reaction device 21 is 900m3, inside is equipped with 4-5 platforms diving mixer 1, the volume of anaerobic precipitation pond 22
75m3.Pollutant concentration is reduced in biogas slurry after Anaerobic Treatment, and wherein COD is down to 3000mg/L, ammonia nitrogen 1000-1500mg/L
Concentration is substantially unchanged, SS 28000-35000mg/L can be down to below 5000mg/L, and biogas slurry flows into compound de- after precipitation
Nitrogen device 3.
3）Biogas slurry flows into the recirculation water containing activated sludge flowed back with compound aerobic device 4 and mixed, in Composite denitrification dress
Denitrification occurs in putting 3, will by carbon source of the organic matter in biogas slurry in the presence of denitrification bacillus and saccharomycete
Nitrate nitrogen in sewage is converted into nitrogen so as to which while reducing COD in water, the total nitrogen in reduction water is handled by Composite denitrification
Afterwards, the COD in water can be down to below 600mg/L.
The volume of Composite denitrification device 3 is 300m3, the wherein volume 150m of submersible agitating mixed zone 313, using aeration mixing
Mode, dissolved oxygen control is aerated the volume 150m of mixed zone 32 in 0.5-1mg/L3, equipped with 2 diving mixers 1, dissolved oxygen control exists
0-0.5mg/L scopes.
4）The water outlet of Composite denitrification device 3, which enters, is combined aerobic device 4, dirty in the presence of nitrobacteria and aerobic bacteria
Organic matter in water is broken down into carbon dioxide, and nitrification and denitrification are carried out simultaneously in biomembrane, ammonia nitrogen
While being converted into nitrite or nitrite, nitrite or nitrate is converted into COD and ammonia in nitrogen, final sewage
Nitrogen reformed gas is overflowed from water, so as to reduce the pollutant concentration in water, the sewage for being combined Aerobic Process for Treatment area 41 enters compound
Aerobic sedimentation tank 42, carries out mud-water separation, and activated sludge is precipitated to bottom of pond and is pumped to after Composite denitrification device 3, processing precipitation
Reclaimed water COD be down to 100-200mg/L, ammonia nitrogen and be down to 10-20mg/L, SS and be down to 100-200mg/L, completely can be as irrigating
With water, column link can be rushed as Treated sewage reusing to pig house after sterilization, reach the purpose that water resource is recycled.
The compound volume of Aerobic Process for Treatment area 41 is 400m3, it is 75m to be combined the volume of aerobic sedimentation tank 423.Compound Aerobic Process for Treatment area
The pH on-line computing models 5 installed in 41 link with pH adjustment systems, and the medicament of pH adjusting meanss is quick lime or sodium carbonate
Or the solution of mass fraction 30% -50% of sodium hydroxide.Work as pH<When 6.5, the alkali lye of pH adjusting meanss is automatically flowed into device, when
pH>Stopped flow into when 7.5.
Dissolved oxygen on-line computing model 7 and fan frequency converter coordinated signals are installed in compound Aerobic Process for Treatment area 41, pass through blower fan
Frequency changes, and can control aerating system 6 and enters the air capacity for being combined aerobic device 4, so that the dissolved oxygen in adjusting means, dissolving
Oxygen is controlled in 1-3mg/L.
The above-described embodiments merely illustrate the principles and effects of the present invention, and the embodiment that part is used, for
For one of ordinary skill in the art, without departing from the concept of the premise of the invention, can also make it is some deformation and
Improve, these belong to protection scope of the present invention.
Claims (8)
1. a kind of livestock and poultry cultivation sewage disposal and method of comprehensive utilization, it is characterised in that comprise the following steps：
A, sewage separation of solid and liquid
The sewage that poultry house is collected in into cesspool passes through waterpower screen cloth separator for processing, carries out in sewage after separation of solid and liquid next
Level biochemical treatment, the dejecta moisture 70-80% isolated is used as composting material；
B, Anaerobic Treatment
Sewage after separation of solid and liquid enters the anaerobic processing device of closing（2）, hydraulic detention time 2-6 days；COD in water is turned
Biogas is turned to, the sewage after COD is taken off and continues to precipitate, or so sedimentation time 6-12 hour, anaerobism supernatant biogas slurry gravity flow enters next
Level Composite denitrification device（3）, the anaerobic sludge of precipitation is pumped to anaerobic processing device by pipeline pump（2）It is interior, what supplement was lost in
Anaerobic sludge；
C, Composite denitrification processing
The gravity flow of anaerobism biogas slurry enters Composite denitrification device（3）, hydraulic detention time 1-2 days, while being combined containing for aerobe pond
Active sludge water is back to Composite denitrification device, in the presence of denitrifying bacteria, makes the nitrate and nitrous acid in sewage
Salt is converted into nitrogen, reduces the total nitrogen content in sewage；
Composite denitrification device（3）Interior half is using the agitating mode of aeration mixing, and second half uses diving mixer（1）Stirring
Mixed zone is aerated in mode, pond（32）Dissolved oxygen is controlled in 0.8-1mg/L, submersible agitating mixed zone（31）Dissolved oxygen control is less than 1mg/
L；
D, compound Aerobic biological process
The gravity flow of anaerobic denitrification biogas slurry, which enters, is combined aerobic device（4）, hydraulic detention time 2-3 days, improve water in COD and ammonia nitrogen
Decomposition and inversion efficiency, the dissolved oxygen in adjusting means, dissolved oxygen control continues to precipitate in 1-3mg/L, then sewage, during precipitation
Between 3-6 hours or so, supernatant gravity flow enters next stage sterilization pool, and the aerobic sludge of precipitation is pumped to compound de- by pipeline pump
Nitrogen device（3）It is interior, the sludge being lost in is supplemented, excess sludge is periodically discharged into sludge dehydration device, the sewage backflow of abjection to anaerobism
Processing unit（2）, the sludge of abjection is for compost.
2. a kind of livestock and poultry cultivation sewage disposal according to claim 1 and method of comprehensive utilization, it is characterised in that described
When step b carries out Anaerobic Treatment, anaerobic processing device（2）Middle initial operating stage adds acetobacter, Propionibacterium, clostridium butyricum three
Combination microbial inoculum is planted, microbial inoculum dosage is acetobacter 0.1-0.5g/m according to device volume calculations unit dosage3, Propionibacterium
0.1-0.5g/m3, clostridium butyricum 0.1-0.5g/m3, device is normally after operation, and 3-6 adds a nitrobacteria and withered grass bud in individual month
Spore bacillus, unit dosage is acetobacter 0.01-0.05g/m3, Propionibacterium 0.01-0.05g/m3, clostridium butyricum 0.01-
0.05g/m3。
3. a kind of livestock and poultry cultivation sewage disposal according to claim 2 and method of comprehensive utilization, it is characterised in that described
Anaerobic processing device（2）Including anaerobic reaction device（21）With anaerobic precipitation pond（22）, described anaerobic processing device（2）Using
Reinforced Concrete Structure or carbon steel anticorrosion structure, its outer wall are provided with insulation material, and its length-width ratio is 3:1, height 4-5m；
Described anaerobic reaction device（21）Inside uses submersible agitator（1）Plug-flow stirring is carried out, the COD in water is quickly turned
Turn to biogas；Described anaerobic reaction device（21）Bottom is provided with collecting methane mouthful, after force (forcing) pump and desulfurization dehydrating unit
Into dry gas-holder Collection utilization；Described anaerobic reaction device（21）Inwall, which is provided with U-tube road, pipe, electrical heating dress
Put, pipeline water is biochemistry pool outlet water at tail end；
Described anaerobic precipitation pond（22）It is arranged on anaerobic reaction device（21）Outlet ends, sedimentation time 6-12 hour is left
The right side, anaerobism supernatant biogas slurry gravity flow enters next stage Composite denitrification device（3）, the anaerobic sludge of precipitation is pumped to by pipeline pump to be detested
Oxygen reaction unit（21）It is interior, supplement the anaerobic sludge being lost in.
4. a kind of livestock and poultry cultivation sewage disposal according to claim 1 and method of comprehensive utilization, it is characterised in that described
When carrying out Composite denitrification processing in step c, Composite denitrification device（3）Middle initial operating stage adds denitrification bacillus and saccharomycete, bacterium
Agent dosage is denitrification bacillus 0.1-0.5g/m according to device volume calculations unit dosage3, saccharomycete 0.1-0.5g/m3, dress
Put after normal operation, add within 3-6 months a denitrification bacillus and saccharomycete, unit dosage is denitrification bacillus 0.01-
0.05mL/m3, saccharomycete 0.01-0.05g/m3。
5. a kind of livestock and poultry cultivation sewage disposal according to claim 4 and method of comprehensive utilization, it is characterised in that described
Composite denitrification device（3）Using Reinforced Concrete Structure or carbon steel anticorrosion structure, its outer wall is provided with insulation material, length-width ratio 3:1, height
4-5m；
Composite denitrification device（3）Including submersible agitating mixed zone（31）With aeration mixed zone（32）, described submersible agitating mixing
Area（31）Bottom is provided with submersible agitator（1）, described aeration mixed zone（32）Bottom is provided with aerating system（6）, it is described
Aerating system（6）Including multiple aerators；
Described Composite denitrification device（3）Inside it is additionally provided with pH on-line computing models（5）, aerobic device is combined by pH change controls
（4）Be back to Composite denitrification device containing activated sludge water（3）Water, water by be combined aerobic device（4）What is set returns
Pump operation time control is flowed, works as pH<7.5 flow back pump operation, work as pH>9 reflux pumps are closed.
6. a kind of livestock and poultry cultivation sewage disposal according to claim 1 and method of comprehensive utilization, it is characterised in that described
When carrying out compound Aerobic biological process in step d, aerobic device is combined（4）Middle initial operating stage adds nitrobacteria, withered grass gemma
Bacillus, microbial inoculum dosage is nitrobacteria 0.1-0.5mL/m according to device volume calculations unit dosage3, bacillus subtilis
0.1-0.5g/m3, device is normally after operation, and 3-6 adds a nitrobacteria and bacillus subtilis in individual month, and unit dosage is
Nitrobacteria 0.01-0.05mL/m3, bacillus subtilis 0.01-0.05g/m3。
7. a kind of livestock and poultry cultivation sewage disposal according to claim 6 and method of comprehensive utilization, it is characterised in that described
It is combined aerobic device（4）Including being combined Aerobic Process for Treatment area（41）With compound aerobic sedimentation tank（42）, described compound aerobic device
（4）Using Reinforced Concrete Structure or carbon steel anticorrosion structure, its outer wall is provided with insulation material, and length-width ratio is 3:1, height 4-5m；
Described compound Aerobic Process for Treatment area（41）Bottom is equipped with aerating system（6）, described compound Aerobic Process for Treatment area（41）In on
Portion is from left to right disposed with combined stuffing area, non-packing area and combined stuffing area, described combined stuffing area and is provided with
Combined stuffing（8）, described combined stuffing（8）On be provided with biomembrane, the biomembrane of attachment growth facultative microbe simultaneously
And aerobic microbiological, nitrification and denitrification are synchronously carried out；The aerobic activated sludge that described non-packing area is produced, only
Generation nitrification and aerobic reaction；Produced in same device by combined stuffing area and the combination of non-packing area and form different
Microorganism species, produce different biochemical reactions, improve the decomposition and inversion efficiency of the COD and ammonia nitrogen in water；
Described compound Aerobic Process for Treatment area（41）Dissolved oxygen on-line computing model is inside installed（7）With fan frequency converter coordinated signals, lead to
The change of blower fan frequency is crossed, aerating system is controlled（6）Into compound aerobic device（4）Air capacity so that molten in adjusting means
Oxygen is solved, dissolved oxygen is controlled in 1-3mg/L；
Described compound Aerobic Process for Treatment area（41）Interior installation pH on-line computing models（5）, and linked with pH adjustment systems, PH is adjusted
The medicament of regulating device is the solution of mass fraction 30% -50% of quick lime or sodium carbonate or sodium hydroxide, works as pH<When 6.5, PH is adjusted
The alkali lye of regulating device is automatically flowed into device, works as pH>Stopped flow into when 7.5；
Described compound aerobic sedimentation tank（42）It is arranged on compound Aerobic Process for Treatment area（41）Outlet ends, during the settlement of sewage of entrance
Between 3-6 hours or so, supernatant gravity flow enters next stage sterilization pool, and the aerobic sludge of precipitation is pumped to compound de- by pipeline pump
Nitrogen device（3）It is interior, the sludge being lost in is supplemented, excess sludge is periodically discharged into sludge dehydration device, the sewage backflow of abjection to anaerobism
Processing unit（2）, the sludge of abjection is for compost.
8. a kind of livestock and poultry cultivation sewage disposal according to claim 7 and method of comprehensive utilization, it is characterised in that described
PH adjusting meanss use fiberglass or carbon steel anticorrosion structure, and its outer wall is provided with insulation material, pH adjusting meanss and is provided with alkali
Thinned water, from elevator pump convey compound aerobic device（4）The tail water of processing, and transported with liquid level gauge control elevator pump
OK.
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