CN107253804B - A kind of livestock and poultry cultivation sewage treatment and method of comprehensive utilization - Google Patents
A kind of livestock and poultry cultivation sewage treatment and method of comprehensive utilization Download PDFInfo
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- CN107253804B CN107253804B CN201710627284.0A CN201710627284A CN107253804B CN 107253804 B CN107253804 B CN 107253804B CN 201710627284 A CN201710627284 A CN 201710627284A CN 107253804 B CN107253804 B CN 107253804B
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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)
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- 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 treatment and method of comprehensive utilization, step is followed successively by the separation of solid and liquid of sewage, carries out Anaerobic Treatment using anaerobic processing device, Composite denitrification is carried out using Composite denitrification device, carries out Aerobic biological process using compound aerobic device；The present invention combines purifying water micrcxDrganism microbial inoculum with different sewage treatment process, and anaerobic system factor of created gase can be improved in anaerobic organism microbial inoculum, and conversion and removal efficiency of the aerobic biochemical system to COD and ammonia nitrogen can be improved in aerobe microbial inoculum.By high-effective microorganism fast decoupled dirt water pollutant, reach qualified discharge standard, or as column water reuse is rushed, realizes energy-saving and emission-reduction, the purpose of application at low cost, easy to spread.Biochemical system is effectively ensured using the automatic control system including dissolved oxygen on-line computing model, pH on-line computing model in the whole process to operate normally, the impact for avoiding the variation of cultivation water intermittent discharge concentration from shining it.
Description
Technical field
The invention belongs to sewage treatment and utilize technical field, and in particular to a kind of livestock and poultry cultivation sewage treatment and comprehensive benefit
With method, harmless treatment and qualified discharge water and comprehensive utilization suitable for sewage and biogas slurry.
Background technique
Large amount of sewage that fast development and scale, intensive livestock and poultry breeding industry are concentrated, 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 unevenly waits spies
Point.In sewage treatment facility operational process, the condition of pH, dissolved oxygen and sludge quantity is controlled, and determines sewage treating efficiency, and sewage
The variation of characteristic, causes above-mentioned parameter easily to change, and manual adjustment is unable to satisfy.
Therefore it needs a kind of preferable livestock and poultry integrated wastewater processing to utilize technique, is combined using simple treatment process automatic
Control system, can automatically adjust sewage treatment facility operating parameter, and control technique meets pollution when livestock and poultry cultivation waste water control
Low impact when high when object concentration stablizes sewage disposal system.
Currently available technology biological comprehensive treatment.For example, patent of invention CN10280732A be solid-liquid separation treatment and
Improvement type oxidation ditch handles sewage of farm, but only treatment facility operating parameter requires but how to realize not reach
To automation control.For another example, patent of invention CN102701512A handles natural pond using the group technology of biochemical method combination physico-chemical process
Liquid, major technique include stripping and SBR processing technique, and the ammonia and nitrogen pollution surrounding enviroment that stripping generates are unable to large-scale promotion.Hair
Bright patent CN10270283A is to pass through immobilization embedded skill with anaerobic bacteria and aerobic bacterial strain trichoderma and saccharomycete for main bacterial strain
Art realizes the sewage for efficiently repairing livestock and poultry cultivation.
Above-mentioned patent final purpose is qualified discharge, and facility operation parameter cannot achieve automatic running control, and cannot be real
Existing system controls steadily in the long term, cannot reach the requirement for comprehensively utilizing reuse, causes the waste of great lot of water resources.
Summary of the invention
It is an object of the invention to insufficient according to prior art, a kind of livestock and poultry cultivation sewage treatment and comprehensive utilization are designed
Method, this method combine purifying water micrcxDrganism microbial inoculum 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 be improved 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 reuse is rushed, realizes that energy conservation subtracts
Row, the purpose of application at low cost, easy to spread.Existed in the whole process using online dissolved oxygen meter, sludge photoelectric detector and PH
Biochemical system normal operation can be effectively ensured in line monitor, and the variation of cultivation water intermittent discharge concentration is avoided to rush to what it shone
It hits.
The technical solution adopted by the present invention to solve the technical problems is: a kind of livestock and poultry cultivation sewage treatment and comprehensive utilization
Method, comprising the following steps:
A, the separation of solid and liquid of sewage
The sewage that poultry house collects in cesspool is passed through into waterpower sieve separator for processing, is carried out in sewage after separation of solid and liquid
Next stage biochemical treatment, the dejecta moisture 70-80% isolated, as composting material；
B, Anaerobic Treatment
Sewage after separation of solid and liquid enters closed anaerobic processing device, and hydraulic detention time 2-6 days；By the COD in water
It is converted into biogas, the sewage after de- COD continues to precipitate, or so sedimentation time 6-12 hour, under the gravity flow of anaerobism supernatant biogas slurry enters
Level-one Composite denitrification device, the anaerobic sludge of precipitating are pumped in anaerobic processing device by pipeline pump, supplement the anaerobism of loss
Sludge；
C, Composite denitrification is handled
The gravity flow of anaerobism biogas slurry enters Composite denitrification device, and hydraulic detention time 1-2 days, while compound aerobe pond contains
Active sludge water is back to Composite denitrification device, under the action of denitrifying bacteria, makes the nitrate and nitrous acid in sewage
Salt is converted into nitrogen, reduces the total nitrogen content in sewage；
For half using mixed agitating mode is aerated, the other half uses the side of diving mixer stirring in Composite denitrification device
Formula, the control of aeration mixed zone dissolved oxygen is less than 1mg/L in 0.8-1mg/L, the control of submersible agitating mixed zone dissolved oxygen in pond；
D, compound Aerobic biological process
The gravity flow of anaerobic denitrification biogas slurry enters compound aerobic device, hydraulic detention time 2-3 days, improves the COD and ammonia in water
The decomposition and inversion efficiency of nitrogen, the dissolved oxygen in regulating device, dissolved oxygen are controlled in 1-3mg/L, and then sewage continues to precipitate, precipitating
Or so time 3-6 hour, supernatant gravity flow enter next stage sterilization pool, and the aerobic sludge of precipitating is pumped to compound by pipeline pump
In nitrogen rejection facility, the sludge of loss is supplemented, excess sludge is periodically discharged into sludge dehydration device, at the sewage backflow to anaerobism of abjection
Device is managed, the sludge of abjection is used for compost.
A kind of described livestock and poultry cultivation sewage treatment and method of comprehensive utilization are detested when the step b carries out Anaerobic Treatment
Initial operating stage adds three kinds of acetobacter, Propionibacterium, 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, after device operates normally, add an acetobacter, Propionibacterium and clostridium butyricum, unit dosage within 3-6 months
For acetobacter 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 treatment and method of comprehensive utilization, anaerobic processing device include anaerobic reaction dress
It sets and uses Reinforced Concrete Structure or carbon steel anticorrosion structure with anaerobic precipitation pond, the anaerobic processing device, outer wall is provided with heat preservation
Material, length-width ratio 3:1, height 4-5m；Plug-flow stirring is carried out using submersible agitator inside the anaerobic reaction device,
COD in water is rapidly converted into biogas；The anaerobic reaction device bottom is equipped with collecting methane mouth, by force (forcing) pump and takes off
Enter dry gas-holder Collection utilization after sulphur dehumidification device；The anaerobic reaction device inner wall is equipped with U-shaped pipe, has electricity in pipe
Heating device, pipeline water are biochemistry pool outlet water at tail end；The outlet ends of anaerobic reaction device are arranged in the anaerobic precipitation pond,
Or so sedimentation time 6-12 hour, the gravity flow of anaerobism supernatant biogas slurry enter next stage Composite denitrification device, and the anaerobic sludge of precipitating is logical
Piping is pumped in anaerobic reaction device, supplements the anaerobic sludge of loss.
A kind of described livestock and poultry cultivation sewage treatment and method of comprehensive utilization carry out at Composite denitrification in the step c
When 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, after device operates normally, add within 3-6 months
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 treatment and method of comprehensive utilization, Composite denitrification device using Reinforced Concrete Structure or
Carbon steel anticorrosion structure, outer wall are provided with thermal insulation material, length-width ratio 3:1, height 4-5m；Composite denitrification device includes submersible agitating
Mixed zone and aeration mixed zone, the submersible agitating mixed zone bottom is provided with submersible agitator, the aeration mixed zone
Bottom is provided with aerating system, and the aerating system includes multiple aerators；It is additionally provided in the Composite denitrification device
PH on-line computing model controls the water that Composite denitrification device is back to containing activated sludge water of compound aerobic device by pH variation
Amount, water are controlled by the reflux pump runing time that compound aerobic device is arranged, and when the reflux pump operation of pH<7.5, work as the reflux pump of pH>9
It closes.
A kind of described livestock and poultry cultivation sewage treatment and method of comprehensive utilization carry out compound aerobic life in the step d
When object processing, initial operating stage adds nitrobacteria, bacillus subtilis in compound aerobic device, and 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 operates normally,
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 treatment and method of comprehensive utilization, compound aerobic device include compound aerobic place
Area and compound aerobic sedimentation tank are managed, the compound aerobic device uses Reinforced Concrete Structure or carbon steel anticorrosion structure, outer wall setting
There are thermal insulation material, length-width ratio 3:1, height 4-5m；The compound Aerobic Process for Treatment area bottom is equipped with aerating system, and described answers
It gets togather oxygen treatment region middle and upper part and has been set gradually from left to right composite filling area, non-packing area and composite filling area, the group
It closes in packing area and is provided with composite filling, biomembrane is provided on the composite filling, is grown simultaneously in the biomembrane of attachment
Facultative microbe and aerobic microbiological, nitrification is synchronous with denitrification to be carried out；The non-packing area generates aerobic
Nitrification and aerobic reaction only occur for activated sludge；It is produced in same device by composite filling area and the combination of non-packing area
Life forms different microbial floras, generates different biochemical reactions, improves the decomposition and inversion efficiency of the COD and ammonia nitrogen in water；
Dissolved oxygen on-line computing model and fan frequency converter linkage control are installed in the compound Aerobic Process for Treatment area, become by blower frequency
Change, control aerating system enters the air capacity of compound aerobic device, thus the dissolved oxygen in regulating device, dissolved oxygen is controlled in 1-
3mg/L；PH on-line computing model is installed in the compound Aerobic Process for Treatment area, and is linked with pH adjustment system, PH adjusts dress
The medicament set is 30% -50% solution of mass fraction of quick lime or sodium carbonate or sodium hydroxide, and as pH < 6.5, PH adjusts dress
The lye set automatically flows into device, stops flow into as pH > 7.5；The compound aerobic sedimentation tank is arranged compound aerobic
Exit of the treatment zone end, the settlement of sewage time 3-6 hours or so of entrance, supernatant gravity flow entered next stage sterilization pool, precipitating
Aerobic sludge be pumped in Composite denitrification device by pipeline pump, supplement the sludge of loss, excess sludge is periodically discharged into sludge
Dehydration device, for the sewage backflow of abjection to anaerobic processing device, the sludge of abjection is used for compost.
A kind of described livestock and poultry cultivation sewage treatment and method of comprehensive utilization, the pH regulating device using glass reinforced plastic or
Carbon steel anticorrosion structure, outer wall are provided with thermal insulation material, the thinned water of alkali are provided in pH regulating device, derive from elevator pump
The tail water of the compound aerobic device processing of conveying, and controlled with liquidometer and promote pump operation.
The beneficial effects of the present invention are:
The present invention combines purifying water micrcxDrganism microbial inoculum with different sewage treatment process, and anaerobic organism microbial inoculum can be improved
Conversion and removal efficiency of the aerobic biochemical system to COD and ammonia nitrogen can be improved in anaerobic system factor of created gase, aerobe microbial inoculum.It is logical
High-effective microorganism fast decoupled dirt water pollutant is crossed, qualified discharge standard is reached, or as column water reuse is rushed, realizes that energy conservation subtracts
Row, the purpose of application at low cost, easy to spread.It in the whole process can be with using dissolved oxygen on-line computing model and pH on-line computing model
Biochemical system normal operation is effectively ensured, the impact for avoiding the variation of cultivation water intermittent discharge concentration from shining it.
Detailed description of the invention
Fig. 1 is flow chart of the invention；
Fig. 2 is the structural schematic diagram of anaerobic processing device of the present invention；
Fig. 3 is the structural schematic diagram of Composite denitrification device of the present invention；
Fig. 4 is the structural schematic diagram of the compound aerobic device of the present invention.
Each appended drawing reference are as follows: 1-submersible agitator, 2-anaerobic processing devices, 21-anaerobic reaction devices, 22-anaerobism
Sedimentation basin, 3-Composite denitrification devices, 31-submersible agitating mixed zones, 32-aeration mixed zones, 4-compound aerobic devices, 41-
Compound Aerobic Process for Treatment area, 42-compound aerobic sedimentation tanks, 5-pH on-line computing models, 6-aerating systems, 7-dissolved oxygens on-line monitoring
Instrument, 8-composite fillings.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to 4, the invention discloses a kind of livestock and poultry cultivation sewage treatment and method of comprehensive utilization, including
Following steps:
1) separation of solid and liquid of sewage: the sewage that poultry house collects in cesspool is separated by waterpower sieve with conventional method
Machine is handled, and carries out next stage biochemical treatment after separation of solid and liquid in sewage, and the dejecta moisture 70-80% isolated can be used as compost
Raw material；
2) Anaerobic Treatment: it is by the mode that the sewage after separation of solid and liquid carries out Anaerobic Treatment, into closed Anaerobic Treatment
Device 2, the anaerobic processing device 2 include anaerobic reaction device 21 and anaerobic precipitation pond 22, the anaerobic processing device 2
Reinforced Concrete Structure or carbon steel anticorrosion structure can be used, outer wall is provided with thermal insulation material, length-width ratio 3:1, height 4-5m, waterpower
Residence time 2-6 days.
Plug-flow stirring is carried out using submersible agitator 1 inside the anaerobic reaction device 21, accelerates anaerobic reaction, by water
In COD be rapidly converted into biogas, carry out using energy source.
21 bottom of anaerobic reaction device is equipped with collecting methane mouth, by entering after force (forcing) pump and desulfurization dehumidification device
Dry gas-holder Collection utilization.
21 inner wall of anaerobic reaction device is equipped with U-shaped pipe, there is electric heater unit in pipe, and pipeline water is biochemistry pool end
Water is brought out, convenient for winter control reaction unit temperature at 30 DEG C -38 DEG C or so.
The outlet ends of anaerobic reaction device 21 are arranged in the anaerobic precipitation pond 22, and sedimentation time 6-12 hour is left
The right side, the gravity flow of anaerobism supernatant biogas slurry enter next stage Composite denitrification device 3, and the anaerobic sludge of precipitating is pumped to anaerobism by pipeline pump
In processing unit 2, the anaerobic sludge of loss is supplemented.
In anaerobic processing device 2, initial operating stage adds three kinds of acetobacter, Propionibacterium, clostridium butyricum combination microbial inoculums, 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, after device operates normally, add an acetobacter, Propionibacterium and clostridium butyricum within 3-6 months,
Unit dosage is acetobacter 0.01-0.05g/m3, Propionibacterium 0.01-0.05g/m3, clostridium butyricum 0.01-0.05g/m3,
The total dosage of microbial inoculum is according to device volume calculations.
3) Composite denitrification is handled: the gravity flow of anaerobism biogas slurry enters Composite denitrification device 3, hydraulic detention time 1-2 days, multiple simultaneously
Get togather oxygen device 4 is back to Composite denitrification device 3 containing activated sludge water, under the action of denitrifying bacteria, makes in sewage
NO3-N and NO2-N be converted into nitrogen, reduce the total nitrogen content in sewage.
Reinforced Concrete Structure can be used in the Composite denitrification device 3 or carbon steel anticorrosion structure, outer wall are provided with thermal 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, the submersible agitating mixed zone
31 bottoms are provided with submersible agitator 1, and 32 bottom of aeration mixed zone is provided with aerating system 6, the aerating system 6
Including multiple aerators by rule setting；The control of 32 dissolved oxygen of mixed zone 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 operates normally, 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.
It is additionally provided with pH on-line computing model 5 in the Composite denitrification device 3, compound aerobic device is controlled by pH variation
4 water that Composite denitrification device 3 is back to containing activated sludge water, water are transported by the reflux pump that compound aerobic device 4 is arranged
The control of row time works as the closing of the reflux pump of pH>9 when the reflux pump operation of pH<7.5.
4) compound Aerobic biological process: the gravity flow of anaerobic denitrification biogas slurry enters compound aerobic device 4, the compound aerobic dress
Set 4 include compound Aerobic Process for Treatment area 41 and compound aerobic sedimentation tank 42, the compound aerobic device 4 can be used Reinforced Concrete Structure or
Carbon steel anticorrosion structure, outer wall are provided with thermal insulation material, length-width ratio 3:1, height 4-5m, and hydraulic detention time 2-3 days.
Compound 41 bottom of Aerobic Process for Treatment area is equipped with aerating system 6, compound 41 middle and upper part of Aerobic Process for Treatment area
It has been set gradually from left to right composite filling area, non-packing area and composite filling area, has been provided with group in the composite filling area
Filler 8 is closed, biomembrane is provided on the composite filling 8, growth facultative microbe and aerobic simultaneously in the biomembrane of attachment
Microorganism, nitrification and denitrification synchronous can carry out；The aerobic activated sludge that the non-packing area generates only occurs
Nitrification and aerobic reaction；It is generated in same device by composite filling area and the combination of non-packing area and forms different micro- lifes
Object flora generates 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 linkage control are installed in the compound Aerobic Process for Treatment area 41, led to
The variation of blower frequency is crossed, can control aerating system 6 to enter the air capacity of compound aerobic device 4, thus the dissolution in regulating device
Oxygen, dissolved oxygen are controlled in 1-3mg/L.
PH on-line computing model 5 is installed in the compound Aerobic Process for Treatment area 41, and is linked with pH adjustment system, pH tune
The medicament of regulating device is 30% -50% solution of mass fraction of quick lime or sodium carbonate or sodium hydroxide, as pH < 6.5, pH tune
The lye of regulating device automatically flows into device, stops flow into as pH > 7.5.
In the 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.
The compound aerobic sedimentation tank 42 is arranged in compound 41 outlet ends of Aerobic Process for Treatment area, 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 precipitating is pumped to compound take off by pipeline pump
In nitrogen device 3, the sludge of loss is supplemented, excess sludge is periodically discharged into sludge dehydration device, at the sewage backflow to anaerobism of abjection
Device 2 is managed, the sludge of abjection is used for compost.
Glass reinforced plastic or carbon steel anticorrosion structure can be used in the pH regulating device, and outer wall is provided with thermal insulation material, pH tune
The thinned water of alkali is provided in regulating device, the tail water handled from the compound aerobic device 4 of elevator pump conveying does not disappear additionally
Other water sources are consumed, and is controlled with liquidometer and promotes pump operation；Lye in pH regulating device adjusts the side pH of compound aerobic device 4
Formula is to enter the flow control of compound aerobic tank by electrically operated valve and the compound aerobic installation of device 4 control lye.
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) liquid dung of pig house discharge flows into after collecting-tank the excrement slag by being separated by solid-liquid separation separator for processing, in water and does not digest
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 separating enters anaerobic processing device 2, and the organic matter of sewage is in anaerobic bacteria (acetobacter, propionic acid bar
Bacterium, clostridium butyricum) under the action of occur hydrolysis acidification reaction generate VFA (volatile fatty acid), by methane backeria using generate natural pond
Gas, sewage become biogas slurry.
21 volume of anaerobic reaction device is 900m3, inside is equipped with 4-5 platform diving mixer 1,22 volume of anaerobic precipitation pond
75m3.Pollutant concentration reduces 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 5000mg/L hereinafter, biogas slurry flows into compound take off after precipitating
Nitrogen device 3.
3) biogas slurry flows into the recirculation water containing activated sludge to flow back with compound aerobic device 4 and mixes, and fills in Composite denitrification
It sets and denitrification occurs in 3, it, will by carbon source of the organic matter in biogas slurry under the action of denitrification bacillus and saccharomycete
While nitrate nitrogen in sewage is converted into nitrogen to reduce COD in water, the total nitrogen in water is reduced, is handled by Composite denitrification
Afterwards, the COD in water can be down to 600mg/L or less.
3 volume of Composite denitrification device is 300m3, wherein 31 volume 150m of submersible agitating mixed zone3, using aeration mixing
Mode, dissolved oxygen control are aerated 32 volume 150m of mixed zone in 0.5-1mg/L3, 2 diving mixers 1 are housed, dissolved oxygen control exists
0-0.5mg/L range.
4) water outlet of Composite denitrification device 3 enters compound aerobic device 4, dirty under the action of nitrobacteria and aerobic bacteria
Organic matter in water is broken down into carbon dioxide gas, and nitrification and denitrification carry out simultaneously in biomembrane, ammonia nitrogen
While being converted into nitrite or nitrite, nitrite or nitrate is converted into nitrogen, COD and ammonia in final sewage
Nitrogen reformed gas is overflowed from water, to reduce the pollutant concentration in water, the sewage in compound 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 Composite denitrification device 3, after processing precipitates
Middle water COD be down to 100-200mg/L, ammonia nitrogen is down to 10-20mg/L, SS and is down to 100-200mg/L, can be used as irrigation completely
With water, it can be used as Treated sewage reusing to pig house after disinfection and rush column link, achieve the purpose that water resource recycles.
Compound 41 volume of Aerobic Process for Treatment area is 400m3, compound 42 volume of aerobic sedimentation tank is 75m3.Compound Aerobic Process for Treatment area
The pH on-line computing model 5 and pH adjustment system installed in 41 link, and the medicament of pH regulating device is quick lime or sodium carbonate
Or 30% -50% solution of mass fraction of sodium hydroxide.As pH < 6.5, the lye of pH regulating device is automatically flowed into device, when
It is stopped flow into when pH > 7.5.
Dissolved oxygen on-line computing model 7 and fan frequency converter linkage control are installed in compound Aerobic Process for Treatment area 41, pass through blower
Frequency variation, can control aerating system 6 to enter the air capacity of compound aerobic device 4, thus the dissolved oxygen in regulating device, dissolution
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 uses, for
For those skilled in the art, without departing from the concept of the premise of the invention, can also make it is several deformation and
It improves, these are all within the scope of protection of the present invention.
Claims (6)
1. a kind of livestock and poultry cultivation sewage treatment and method of comprehensive utilization, which comprises the following steps:
A, the separation of solid and liquid of sewage
Poultry house is collected in into the sewage of cesspool by waterpower sieve separator for processing, is carried out in sewage after separation of solid and liquid next
Grade biochemical treatment, the dejecta moisture 70-80% isolated, as composting material；
B, Anaerobic Treatment
Sewage after separation of solid and liquid enters closed anaerobic processing device (2), and hydraulic detention time 2-6 days；COD in water is turned
Biogas is turned to, the sewage after de- COD continues to precipitate, sedimentation time 6-12 hour, and the gravity flow of anaerobism supernatant biogas slurry is multiple into next stage
It closes nitrogen rejection facility (3), the anaerobic sludge of precipitating is pumped in anaerobic processing device (2) by pipeline pump, supplements the anaerobism of loss
Sludge；
C, Composite denitrification is handled
The gravity flow of anaerobism biogas slurry enters Composite denitrification device (3), and hydraulic detention time 1-2 days, while compound aerobe pond contains
Active sludge water is back to Composite denitrification device, under the action of denitrifying bacteria, makes the nitrate and nitrous acid in sewage
Salt is converted into nitrogen, reduces the total nitrogen content in sewage；
The interior half of Composite denitrification device (3) is using mixed agitating mode is aerated, the other half is using submersible agitator (1) stirring
Mode, the control of aeration mixed zone (32) dissolved oxygen is less than 1mg/ in 0.8-1mg/L, the control of submersible agitating mixed zone (31) dissolved oxygen in pond
L；
D, compound Aerobic biological process
The gravity flow of anaerobic denitrification biogas slurry enters compound aerobic device (4), hydraulic detention time 2-3 days, improves the COD and ammonia nitrogen in water
Decomposition and inversion efficiency, the dissolved oxygen in regulating device, dissolved oxygen controls in 1-3mg/L, and then sewage continues to precipitate, when precipitating
Between 3-6 hours, supernatant gravity flow enters next stage sterilization pool, and the aerobic sludge of precipitating is pumped to Composite denitrification by pipeline pump and fills
It sets in (3), supplements the sludge of loss, excess sludge is periodically discharged into sludge dehydration device, the sewage backflow of abjection to Anaerobic Treatment
The sludge of device (2), abjection is used for compost；
Initial operating stage adds nitrobacteria, bacillus subtilis in compound aerobic device (4), and microbial inoculum dosage is according to device volume
Unit of account dosage is nitrobacteria 0.1-0.5mL/m3, bacillus subtilis 0.1-0.5g/m3, after device operates normally, 3-
A nitrobacteria and bacillus subtilis are added within 6 months, unit dosage is nitrobacteria 0.01-0.05mL/m3, withered grass bud
Spore bacillus 0.01-0.05g/m3；
The compound aerobic device (4) includes compound Aerobic Process for Treatment area (41) and compound aerobic sedimentation tank (42), and described answers
Oxygen device (4) are got togather using Reinforced Concrete Structure or carbon steel anticorrosion structure, outer wall is provided with thermal insulation material, length-width ratio 3:1, height
4-5m；
Compound Aerobic Process for Treatment area (41) bottom is equipped with aerating system (6), in the compound Aerobic Process for Treatment area (41) on
Portion has been set gradually from left to right composite filling area, non-packing area and composite filling area, is provided in the composite filling area
Composite filling (8) is provided with biomembrane on the composite filling (8), growth facultative microbe simultaneously in the biomembrane of attachment
And aerobic microbiological, nitrification is synchronous with denitrification to be carried out；The aerobic activated sludge that the non-packing area generates, only
Nitrification and aerobic reaction occurs；By composite filling area and the combination of non-packing area, the generation in same device forms different
Microbial flora generates 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 linkage control are installed in the compound Aerobic Process for Treatment area (41), are led to
The variation of blower frequency is crossed, control aerating system (6) enters the air capacity of compound aerobic device (4), thus molten in regulating device
Oxygen is solved, dissolved oxygen is controlled in 1-3mg/L；
PH on-line computing model (5) are installed in the compound Aerobic Process for Treatment area (41), and are linked with pH adjustment system, pH tune
The medicament of regulating device is 30% -50% solution of mass fraction of quick lime or sodium carbonate or sodium hydroxide, as pH < 6.5, pH tune
The lye of regulating device automatically flows into device, stops flow into as pH > 7.5；
The compound aerobic sedimentation tank (42) is arranged in compound Aerobic Process for Treatment area (41) outlet ends, the settlement of sewage of entrance
Between 3-6 hours, supernatant gravity flow enters next stage sterilization pool, and the aerobic sludge of precipitating is pumped to Composite denitrification by pipeline pump and fills
It sets in (3), supplements the sludge of loss, excess sludge is periodically discharged into sludge dehydration device, the sewage backflow of abjection to Anaerobic Treatment
The sludge of device (2), abjection is used for compost.
2. a kind of livestock and poultry cultivation sewage treatment according to claim 1 and method of comprehensive utilization, which is characterized in that described
When step b carries out Anaerobic Treatment, initial operating stage adds acetobacter, Propionibacterium, clostridium butyricum three in anaerobic processing device (2)
Kind combination microbial inoculum, microbial inoculum dosage are 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, after device operates normally, add an acetobacter, propionic acid bar within 3-6 months
Bacterium, clostridium butyricum, unit dosage are 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 treatment according to claim 2 and method of comprehensive utilization, which is characterized in that described
Anaerobic processing device (2) includes anaerobic reaction device (21) and anaerobic precipitation pond (22), and the anaerobic processing device (2) uses
Reinforced Concrete Structure or carbon steel anticorrosion structure, outer wall are provided with thermal insulation material, length-width ratio 3:1, height 4-5m；
Plug-flow stirring is carried out using submersible agitator (1) inside the anaerobic reaction device (21), the COD in water is quickly turned
Turn to biogas；Anaerobic reaction device (21) bottom is equipped with collecting methane mouth, after force (forcing) pump and desulfurization dehumidification device
Into dry gas-holder Collection utilization；Anaerobic reaction device (21) inner wall is equipped with U-shaped pipe, has electric heating dress in pipe
It sets, pipeline water is biochemistry pool outlet water at tail end；
Anaerobic precipitation pond (22) setting sedimentation time 6-12 hour, is detested in the outlet ends of anaerobic reaction device (21)
The gravity flow of oxygen supernatant biogas slurry enters next stage Composite denitrification device (3), and it is anti-that the anaerobic sludge of precipitating by pipeline pump is pumped to anaerobism
It answers in device (21), supplements the anaerobic sludge of loss.
4. a kind of livestock and poultry cultivation sewage treatment according to claim 1 and method of comprehensive utilization, which is characterized in that described
When carrying out Composite denitrification processing in step c, initial operating stage adds denitrification bacillus and saccharomycete, bacterium in Composite denitrification device (3)
Agent dosage is denitrification bacillus 0.1-0.5g/m according to device volume calculations unit dosage3, saccharomycete 0.1-0.5g/m3, dress
After setting normal operation, a denitrification bacillus and saccharomycete are added within 3-6 months, 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 treatment according to claim 4 and method of comprehensive utilization, which is characterized in that described
Composite denitrification device (3) uses Reinforced Concrete Structure or carbon steel anticorrosion structure, and outer wall is provided with thermal insulation material, length-width ratio 3:1, height
4-5m；
Composite denitrification device (3) includes submersible agitating mixed zone (31) and aeration mixed zone (32), the submersible agitating mixing
Area (31) bottom is provided with submersible agitator (1), and described aeration mixed zone (32) bottom is provided with aerating system (6), described
Aerating system (6) include multiple aerators；
PH on-line computing model (5) are additionally provided in the Composite denitrification device (3), compound aerobic device is controlled by pH variation
(4) the water that Composite denitrification device (3) are back to containing activated sludge water, water are returned by what compound aerobic device (4) was arranged
The control of pump operation time is flowed, when the reflux pump operation of pH<7.5, works as the closing of the reflux pump of pH>9.
6. a kind of livestock and poultry cultivation sewage treatment according to claim 1 and method of comprehensive utilization, which is characterized in that described
PH regulating device uses glass reinforced plastic or carbon steel anticorrosion structure, and outer wall is provided with thermal insulation material, is provided with alkali in pH regulating device
Thinned water from the tail water of compound aerobic device (4) processing of elevator pump conveying, and is controlled with liquidometer and promotes pump operation.
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| CN108059238B (en) * | 2017-12-26 | 2021-04-27 | 长沙理工大学 | Pig farm waste liquid treatment process |
| CN110183031B (en) * | 2019-04-18 | 2022-01-25 | 长沙工研院环保有限公司 | High-concentration livestock and poultry breeding wastewater and manure residue co-treatment system and treatment method |
| CN110436702A (en) * | 2019-07-18 | 2019-11-12 | 海南晟泰环保工程有限公司 | A kind of livestock and poultry cultivation sewage zero-discharge group technology |
| CN110551667A (en) * | 2019-10-09 | 2019-12-10 | 武汉欧瑞景环保科技有限公司 | Method for treating aquaculture wastewater by using composite bacteria culture solution |
| CN110642483A (en) * | 2019-11-14 | 2020-01-03 | 横县丰创农业科技有限公司 | Chicken farm wastewater treatment method |
| CN112499914A (en) * | 2021-01-12 | 2021-03-16 | 惠州市济圣环保科技有限公司 | Method for preparing derivative of aquaculture sewage by recycling |
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