CN109133538A - A kind of slaughterhouse wastewater treatment method - Google Patents

A kind of slaughterhouse wastewater treatment method Download PDF

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Publication number
CN109133538A
CN109133538A CN201811188645.7A CN201811188645A CN109133538A CN 109133538 A CN109133538 A CN 109133538A CN 201811188645 A CN201811188645 A CN 201811188645A CN 109133538 A CN109133538 A CN 109133538A
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China
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water
waste water
sludge
grid
tank
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CN201811188645.7A
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Inventor
陈新强
钮劲涛
马三贵
李世新
郭广军
张萌
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Henan Heng'an Environmental Protection Technology Co Ltd
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Henan Heng'an Environmental Protection Technology Co Ltd
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Publication of CN109133538A publication Critical patent/CN109133538A/en
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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00Multistage treatment of water, waste water, or sewage
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00Treatment of sludge; Devices therefor
    • C02F11/12Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C02F11/122Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using filter presses
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/24Treatment of water, waste water, or sewage by flotation
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/40Devices for separating or removing fatty or oily substances or similar floating material
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/50Treatment of water, waste water, or sewage by addition or application of a germicide or by oligodynamic treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/52Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/54Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material
    • C02F1/56Macromolecular compounds
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F2001/007Processes including a sedimentation step
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/20Nature of the water, waste water, sewage or sludge to be treated from animal husbandry
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2301/00General aspects of water treatment
    • C02F2301/08Multistage treatments, e.g. repetition of the same process step under different conditions
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00Specific treatment goals
    • C02F2303/04Disinfection
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/02Aerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/28Anaerobic digestion processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/30Aerobic and anaerobic processes
    • C02F3/302Nitrification and denitrification treatment
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water

Abstract

The present invention relates to slaughterhouse wastewater treatment method, it can effectively solve that existing slaughterhouse wastewater treatment construction investment is big, and operating cost is high, it is inconvenient, excess sludge can not be made proper arrangements, secondary noise pollution is also easy to produce, it is ensured that the problem of environmental sanitation.Slaughtering wastewater is through grid by suspended matter big in waste water, floating material, fibrous matter and solid particulate matter separation, it is precipitated in into oil partiting precipitation pool, sludge enters in sludge concentration tank, waste water enters conditioning tank, stirring increases dissolved oxygen content, it is sent into air flotation oil remover, simultaneously flocculant is added in injection air, the dross of formation enters sludge concentration tank, acidification is hydrolyzed in waste water, into biological contact oxidation pond, remove COD and BOD, carry out nitration denitrification reaction, waste water enters sedimentation in secondary sedimentation tank, clear water enters in biological aerated filter, further remove the COD and realization nitrification function in water removal, through filtering, disinfection, discharge after up to standard;Sludge carries out gravity concentration, filters pressing, and easy to operate of the present invention is at low cost, effect is good.

Description

A kind of slaughterhouse wastewater treatment method
Technical field
The present invention relates to wastewater treatment, especially a kind of slaughterhouse wastewater treatment method.
Background technique
Slaughtering wastewater is rinsed from hutch, is eluted, butchering and other workshop terraces rinse, scald hair, analyse, non-staple foodstuff processing Deng, the slaughtering wastewater generated in slaughtering process, blood stains, grease, meat mincing, poultry hair, indigested food and excrement, urine are mainly contained Liquid etc., water quality characteristics are as follows: major pollutants are COD, SS, grease and ammonia nitrogen;B/C ratio is 0.5 or so, good biodegradability, Belong to easily biological-degradable sewage;Water stabilization but muddiness, color depth and there is stench, is in neutrality, is generally free of noxious material, generally The slaughterhouse wastewater treatment method of use has: A2O, SBR method, oxidation ditch process and activated sludge process, but the investment of its process engineering it is big, Operating cost is high, it is inconvenient for operation, excess sludge can not be made proper arrangements, equipment generates quadratic noise pollution, for preferably purification Therefore how the waste water generated in slaughtering process it is imperative researches and develops a kind of slaughterhouse wastewater treatment method.
Summary of the invention
For above situation, for the defect for overcoming the prior art, the purpose of the present invention is just to provide at a kind of slaughtering wastewater Reason method can be effectively used for the processing of slaughter technics, and it is big to solve existing slaughterhouse wastewater treatment construction investment, and operating cost is high, behaviour It is inconvenient to make, and can not make proper arrangements excess sludge, be also easy to produce secondary noise pollution, it is ensured that the problem of environmental sanitation.
The technical solution that the present invention solves is a kind of slaughterhouse wastewater treatment method, comprising the following steps:
1), slaughtering wastewater is sent into grid canal through pipeline, by suspended matter big in waste water, floating material, fibrous matter and consolidates through grid The separation of body particulate matter, the waste isolated clean out grid canal, clean out the sludge in the slaughtering wastewater of waste through arranging Dirty pipeline enters in sludge concentration tank, and the slaughtering wastewater for cleaning out waste and sludge enters oil partiting precipitation pool;The grid The grid gap of canal is 5-10mm;
2) enter the slaughtering wastewater in oil partiting precipitation pool, precipitate 1.5h, make solid particle, oil and suspended matter separation, clean out solid Determine particle, oil and suspended matter, the sludge being settled out enters in sludge concentration tank through blow-off line, carry out concentration, waste water into Enter conditioning tank;
3) waste water after oil removal precipitates (sewage) enters waste water (sewage) conditioning tank, is provided with through wastewater equalization pond mostly bent Face blender or air agitator stir 6-8h, available depth 3-4m, superelevation 0.3m, increase dissolved oxygen content, carry out to waste water pre- Processing, then water quality, the water of waste water are adjusted, realize that mechanical stirring or air agitation system are exchanged by curved surface blender It saves pond and carries out water quality adjustment, be uniformly mixed, to production process since the fluctuation of operation stage difference bring water is adjusted Section is improved to organic loading buffer capacity to realize the adjusting of water, water quality, the sludge of generation through sewage draining exit by pipeline and It is sent into sludge concentration tank, the waste water of liquid is entered in air flotation oil remover by water pump;
4) waste water in air flotation oil remover is entered, through release and flocculant poly aluminium chloride is added through air compressor machine injection air (PAC) and flocculation aid anionic polyacrylamide (PAM), according to waste strength difference, field experiment determines optimum dosage, gathers Conjunction aluminium chloride dosage is 20-80mg/L, and anionic polyacrylamide dosage is 1mg/L, makes oil slick in waste water, small outstanding Floating particles polluter is attached on air bubble, is floated to the water surface with air bubble and is formed dross, dross enters dirt through blow-off line In mud thickener, dross carries out concentration, achievees the purpose that improve water quality, the waste water after venting dross enters water through drainpipe Solve acidification pool;
5) waste water being discharged after oil removal by air bubbling enters hydrolysis acidification pool, and acidifying fermentation, waste water are hydrolyzed in hydrolysis acidification pool In particulate matter be trapped and adsorb with colloidal substance, the aerobic-anaerobic microbe containing high concentration in hydrolysis acidification pool, in pond Anoxic and the organic substance being trapped, by halfway anaerobic fermentation of organisms, make complicated under the action of microorganism Insoluble or dissolubility macromolecule is by hydrolysis and produces acid, is converted into the simple low molecule organic matter of structure, and that improves waste water can Biochemical, sludge concentration is high in hydrolysis acidification pool, and resistance to capacity of resisting impact load is strong, for subsequent Aerobic Process for Treatment create it is stable into Water bar part, treated, and waste water is discharged through hydrolysis acidification pool discharge outlet, into the biological contact oxidation pond being connected to air blower;
6) waste water after hydrolysis acidification subsequently enters the biological contact oxidation pond for being connected with air blower, hangs in biological contact oxidation pond The fiberfill that exhibiting high surface is attached with biomembrane is hung, under the action of biomembrane, the organic matter in waste water obtains assimilation and decomposes, Water and carbon dioxide are generated, while removing COD and BOD, COD removal rate 80-95%, BOD removal rate 75%-90%, by nitre The nitration denitrification effect for changing bacterium and denitrifying bacteria, is N by the mineralized nitrogen in sewage2, ammonia nitrogen pollutant in water removal is removed, Treated, and waste water is discharged through discharge outlet, into secondary settling tank;
7) enter secondary settling tank through the waste water that biological contact oxidation pond is isolated, precipitate 1.5-2h, sludge and clear water are separated, sludge It is pumped into sludge concentration tank to be concentrated, clear water using the absorption of microorganism, oxidation through making in discharge of pipes to biological aerated filter With the filtration with filtrate, COD and realization nitrification function in water removal are further removed, is filtered, is sterilized, rear discharge up to standard; Filtering uses quartz filter, quartz sand particle size 1-2mm, and disinfection uses disinfection by chlorine dioxide, hypochlorite disinfectant or pipeline Formula ultraviolet disinfection;
8) sludge entered in sludge concentration tank carries out gravity concentration in pond, and the sludge condensation time is not less than 12h, into mud, row The equal intermittent duty of mud, after concentration, supernatant is back to conditioning tank recycling, and the sludge of concentration is sent into plate and frame filter press filters pressing, filter Liquid is back to conditioning tank recycling, and filter cake outward transport recycles.
The method of the present invention novel and unique, equipment is easy to install, easy to operate, at low cost, effect is good, can effectively solve engineering Investment is big, operating cost is high, it is inconvenient for operation, excess sludge can not be made proper arrangements, equipment leads to the problem of quadratic noise and pollutes, Economic and social benefit is huge.
Detailed description of the invention
Fig. 1 is waste water treatment process equipment frame flow chart of the invention.
Specific embodiment
It elaborates below in conjunction with attached drawing and concrete condition to a specific embodiment of the invention.
The present invention in specific implementation, a kind of slaughterhouse wastewater treatment method, comprising the following steps:
1), slaughtering wastewater is sent into grid canal 1 through pipeline, by suspended matter big in waste water, floating material, fibrous matter and consolidates through grid The separation of body particulate matter, the waste isolated clean out grid canal, clean out the sludge in the slaughtering wastewater of waste through arranging Dirty pipeline enters in sludge concentration tank 12, and the slaughtering wastewater for cleaning out waste and sludge enters oil partiting precipitation pool 2;The lattice The grid gap of grid canal is 5-10mm;
2) enter the slaughtering wastewater in oil partiting precipitation pool 2, precipitate 1.5h, make solid particle, oil and suspended matter separation, clean out solid Determine particle, oil and suspended matter, the sludge being settled out enters in sludge concentration tank 12 through blow-off line, carries out concentration, waste water Into conditioning tank 3;
3) waste water after oil removal precipitates (sewage) enters waste water (sewage) conditioning tank 3, is provided with through wastewater equalization pond more Curved surface blender or air agitator stir 6-8h, available depth 3-4m, superelevation 0.3m, increase dissolved oxygen content, carry out to waste water Pretreatment, then water quality, the water of waste water are adjusted, mechanical stirring or air agitation system pair are realized by curved surface blender Conditioning tank carries out water quality adjustment, is uniformly mixed, and carries out to production process since operation stage difference bring water fluctuates It adjusts, to realize the adjusting of water, water quality, improves to organic loading buffer capacity, the sludge of generation is through sewage draining exit by pipeline And be sent into sludge concentration tank 12, the waste water of liquid is entered in air flotation oil remover 5 by water pump 4;
4) waste water in air flotation oil remover 5 is entered, air is injected through air compressor machine 10 and through release and flocculant poly chlorine is added Change aluminium (PAC) and flocculation aid anionic polyacrylamide (PAM), according to waste strength difference, field experiment determination is most preferably added Amount, aluminium polychloride dosage are 20-80mg/L, and anionic polyacrylamide dosage is 1mg/L, make oil slick in waste water, Small suspended particulate contaminants matter is attached on air bubble, with air bubble float to the water surface formed dross, dross through blow-off line into Enter into sludge concentration tank, dross carries out concentration, achievees the purpose that improve water quality, the waste water after venting dross is through drainpipe Into hydrolysis acidification pool 6;
5) waste water being discharged after oil removal by air bubbling enters hydrolysis acidification pool 6, and acidifying fermentation, waste water are hydrolyzed in hydrolysis acidification pool In particulate matter be trapped and adsorb with colloidal substance, the aerobic-anaerobic microbe containing high concentration in hydrolysis acidification pool, in pond Anoxic and the organic substance being trapped, by halfway anaerobic fermentation of organisms, make complicated under the action of microorganism Insoluble or dissolubility macromolecule is by hydrolysis and produces acid, is converted into the simple low molecule organic matter of structure, and that improves waste water can Biochemical, sludge concentration is high in hydrolysis acidification pool, and resistance to capacity of resisting impact load is strong, for subsequent Aerobic Process for Treatment create it is stable into Water bar part, treated, and waste water is discharged through hydrolysis acidification pool discharge outlet, into the biological contact oxidation pond being connected to air blower 10 7;
6) waste water after hydrolysis acidification subsequently enters the biological contact oxidation pond for being connected with air blower, hangs in biological contact oxidation pond The fiberfill that exhibiting high surface is attached with biomembrane is hung, under the action of biomembrane, the organic matter in waste water obtains assimilation and decomposes, Water and carbon dioxide are generated, while removing COD and BOD, COD removal rate 80-95%, BOD removal rate 75%-90%, by nitre The nitration denitrification effect for changing bacterium and denitrifying bacteria, is N by the mineralized nitrogen in sewage2, ammonia nitrogen pollutant in water removal is removed, Treated, and waste water is discharged through discharge outlet, into secondary settling tank 8;
7) enter secondary settling tank 8 through the waste water that biological contact oxidation pond is isolated, precipitate 1.5-2h, sludge and clear water are separated, it is dirty Dredge pump enters sludge concentration tank 12 and is concentrated, clear water through in discharge of pipes to biological aerated filter 9, using the absorption of microorganism, The filtration of oxidation and filtrate further removes COD and realization nitrification function in water removal, is filtered, sterilized, after up to standard Discharge;Filtering use quartz filter, quartz sand particle size 1-2mm, disinfection using disinfection by chlorine dioxide, hypochlorite disinfectant or Duct type ultraviolet disinfection;
8) sludge entered in sludge concentration tank carries out gravity concentration in pond, and the sludge condensation time is not less than 12h, into mud, row The equal intermittent duty of mud, after concentration, supernatant is back to the recycling of conditioning tank 3, and the sludge of concentration is sent into 11 filters pressing of plate and frame filter press, Filtrate is back to the recycling of conditioning tank 3, and filter cake outward transport recycles.
In order to guarantee using effect, the grid canal is the rectangular of Reinforced Concrete Structure, and the grid of grid canal is artificial grid Or mechanical grille, when the grid quantity of slag is more than 0.2m3/d, using stainless steel or corrosion-resistant carbon steel machinery rotation grid;
The oil partiting precipitation pool 2 is the rectangular of Reinforced Concrete Structure, can build jointly and be structure as a whole with grid canal;
The sewage conditioning tank 3 is the square hollow body made of underground type armored concrete, is provided with stainless steel or glass More curved surface blenders made of steel, the power of blender are 5w/m3;
The air flotation oil remover is the rectangular of carbon steel anticorrosion structure.
The biological contact oxidation pond is the round or rectangular of Reinforced Concrete Structure.
The sedimentation basin is round or rectangular Reinforced Concrete Structure.
The sludge concentration tank is hollow round or rectangular Reinforced Concrete Structure, effective depth 3-4m, superelevation 0.3- 0.5m。
Working condition of the invention is:
1), grid canal
Raw water passes through the grid of grid canal (well), to remove biggish suspended matter, floating material, fibrous matter and solid in sewage Particulate matter mitigates the processing load of subsequent processing structures to guarantee the normal operation of subsequent processing structures.
Function: being mainly used for removing the biggish suspended matter of volume or floating material in raw water, be located at advanced treatment system front end, It avoids blocking and subsequent constructs conduit.
Structure: the grid quantity of slag is more than 0.2m3When/d, machinery rotation formula grid should be used, the grid gap country 5-10mm(has into It is available to cover equipment, carbon steel material or stainless steel material).Grid canal can be built jointly with conditioning tank, Reinforced Concrete Structure.
2), sewage conditioning tank
Raw water goes to enter conditioning tank, regulating water quality water in water removal after biggish sundries through grid.
This project slaughtering wastewater considers seasonal variations and real work feature, and water and variation water quality are big, at sewage It is unfavorable that reason equipment normally plays purification function, is to improve sewage treatment facility to organic loading impact capacity, reduces water quality wave It is dynamic, the adjusting that conditioning tank carries out water quantity and quality to raw water need to be set.
Function: according to production in 24 hours fluctuation is presented in waste water, causes the unstable of water and water quality, influences to handle The stability of effect.Therefore it needs to be arranged conditioning tank water quality and quantity is adjusted, improves the buffer capacity to organic loading.
Structure: frequently with underground type armored concrete build, flat shape be it is rectangular, inside can be arranged according to water quality situation More curved surface blenders or air agitation system, blender can be by 5w/m3It chooses, material is stainless steel or glass reinforced plastic.
Its important technological parameters is hydraulic detention time (HRT), generally 6-8h, available depth 3-4m.Superelevation 0.3m.
3), oil removal precipitating+air bearing oil-isolating device
Function: oil separator removes animal fat before being mainly used to remove in waste water into biochemistry pool.Air bearing is exactly to lead into water Enter air, generate fine bubble, sometimes according to needing that coagulant or flotation agent is added simultaneously, make fine suspension in water with Oil slick is attached on air bubble, is floated to the water surface with bubble, is formed dross, reach suspended matter, oil slick in water removal, improves The purpose of water quality.
Structure: oil separator uses Reinforced Concrete Structure, and air bearing is made of carbon steel anticorrosion structure.
4), hydrolysis acidification pool
Hydrolysis Acidification is a part of complete anaerobic bio-treated, and end point is normally controlled in the anaerobic processes first stage The starting of end or second stage.Therefore, hydrolysis acidification fermentation is a kind of halfway organic matter anaerobism conversion process, is acted on In keeping complicated insoluble or dissolubility macromolecule organic sour by hydrolysis and production, it is organic to be converted into simple low molecule Object improves the biodegradability of waste water.Sludge concentration in hydrolysis acidification pool is high, and resistance to water inlet impact load ability is strong, negative to water inlet The buffer function of the variation of lotus is that subsequent Aerobic Process for Treatment creates relatively stable flow condition, and microorganism is mostly facultative in pond Bacterium, type is more, growth is fast and environmental condition that is adaptable to environmental condition, requiring is loose, is easily managed and controls.
5), contact-oxidation pool
Sewage flows through contact-oxidation pool, while substantially removing COD and BOD, by the nitre of nitrobacteria and denitrifying bacteria Change denitrification, is N by the mineralized nitrogen in sewage2, to also remove ammonia nitrogen pollutant in water removal, nitric efficiency can generally reach To 70%-80%.
6), secondary settling tank
After secondary sedimentation tank is located at biological treatment structures, for carrying out the separation of sludge and clear water.It is using after biochemical treatment The density of certain suspended particulates is greater than the characteristic of water in water outlet, it is removed from water.Its major advantage is simple structure, cost Lower, convenient operation and management, horizontal layout is compact, constructs simpler, and sedimentation effect is stablized, adaptable to raw water.
7), biological aerated filter (BAF)
Two water that settle out enter biological aerated filter (BAF), utilize the filtration of the absorption of microorganism, oxidation and filtrate real COD and nitrification function in water removal are now further removed, anti-Japanese normal impact load ability is strong.
8), sludge concentration tank
The regular static pressure of a small amount of materialization, biological sludge and dross generated in treatment process drains into sludge-tank, manual cleaning outward transport Disposition.
The present invention is applied and is tested on the spot, and effect is very good, and each processing unit effect is as follows:
Each processing unit sharing of load table
Have above-mentioned it is found that CODcr water inlet content is 2000mg/L, water content is 24 mg/L, Effluent criteria 50mg/L out;BOD Water inlet content is 1000mg/L, and water content is 9.8 mg/L, Effluent criteria 10mg/L out;SS water inlet content is 1000mg/L, Water content is 24mg/L, Effluent criteria 30mg/L out, can reach provincial standard and " saves linchpin Haihe basin Sewage Water Emissions mark It is quasi- " (DB41/777-2013) discharge standard.
Project occupation of land of the present invention is few, and the 1/3 of only former engineering, expense is low, can reduce by 50% or more expense, operational management side Just, resistance to overload shock reduces labor intensity, has saved manpower, and effectively solution construction investment is big, operating cost is high, operates not Conveniently, excess sludge can not be made proper arrangements, equipment leads to the problem of quadratic noise pollution, that is to say, that compared with prior art, With advantageous effects following prominent:
1), technological design is simple and reliable, and characteristics of compact layout saves land occupation, small investment, saves management and running cost.
2), this engineering is the wastewater treatment of bench scale, for convenient for management service, treatment process is preferably reliable easy, to subtract The operation operator configured less.
3), the present invention treated waste water deodorization taste, it is noiseless in treatment process, it eliminates stink and NOISE ON ENVIRONMENT is made At pollution, have huge economic and social benefit.

Claims (8)

1. a kind of slaughterhouse wastewater treatment method, which comprises the following steps:
1), slaughtering wastewater is sent into grid canal through pipeline, by suspended matter big in waste water, floating material, fibrous matter and consolidates through grid The separation of body particulate matter, the waste isolated clean out grid canal, clean out the sludge in the slaughtering wastewater of waste through arranging Dirty pipeline enters in sludge concentration tank, and the slaughtering wastewater for cleaning out waste and sludge enters oil partiting precipitation pool;The grid The grid gap of canal is 5-10mm;
2) enter the slaughtering wastewater in oil partiting precipitation pool, precipitate 1.5h, make solid particle, oil and suspended matter separation, clean out solid Determine particle, oil and suspended matter, the sludge being settled out enters in sludge concentration tank through blow-off line, carry out concentration, waste water into Enter conditioning tank;
3) waste water after oil removal precipitates enters wastewater equalization pond, is provided with more curved surface blenders or sky through wastewater equalization pond Gas agitating device stirs 6-8h, available depth 3-4m, superelevation 0.3m, increases dissolved oxygen content, pre-processes to waste water, then to waste water Water quality, water be adjusted, realize that mechanical stirring or air agitation system carry out water quality to conditioning tank by curved surface blender It adjusts, is uniformly mixed, to production process since the fluctuation of operation stage difference bring water is adjusted, to realize water The adjusting of amount, water quality is improved to organic loading buffer capacity, and the sludge of generation by pipeline and is sent into sludge concentration tank through sewage draining exit Interior, the waste water of liquid is entered in air flotation oil remover by water pump;
4) waste water in air flotation oil remover is entered, through release and flocculant poly aluminium chloride is added through air compressor machine injection air With flocculation aid anionic polyacrylamide, aluminium polychloride dosage is 20-80mg/L, and anionic polyacrylamide dosage is 1mg/L is attached to the oil slick in waste water, small suspended particulate contaminants matter on air bubble, floats to the water surface with air bubble and formed Dross, dross enter in sludge concentration tank through blow-off line, and dross carries out concentration, achieve the purpose that improve water quality, row Waste water after removing dross enters hydrolysis acidification pool through drainpipe;
5) waste water being discharged after oil removal by air bubbling enters hydrolysis acidification pool, and acidifying fermentation, waste water are hydrolyzed in hydrolysis acidification pool In particulate matter be trapped and adsorb with colloidal substance, the aerobic-anaerobic microbe containing high concentration in hydrolysis acidification pool, in pond Anoxic and the organic substance being trapped, by halfway anaerobic fermentation of organisms, make complicated under the action of microorganism Insoluble or dissolubility macromolecule is by hydrolysis and produces acid, is converted into the simple low molecule organic matter of structure, and that improves waste water can Biochemical, sludge concentration is high in hydrolysis acidification pool, and resistance to capacity of resisting impact load is strong, for subsequent Aerobic Process for Treatment create it is stable into Water bar part, treated, and waste water is discharged through hydrolysis acidification pool discharge outlet, into the biological contact oxidation pond being connected to air blower;
6) waste water after hydrolysis acidification subsequently enters the biological contact oxidation pond for being connected with air blower, hangs in biological contact oxidation pond The fiberfill that exhibiting high surface is attached with biomembrane is hung, under the action of biomembrane, the organic matter in waste water obtains assimilation and decomposes, Water and carbon dioxide are generated, while removing COD and BOD, COD removal rate 80-95%, BOD removal rate 75%-90%, by nitre The nitration denitrification effect for changing bacterium and denitrifying bacteria, is N by the mineralized nitrogen in sewage2, ammonia nitrogen pollutant in water removal is removed, Treated, and waste water is discharged through discharge outlet, into secondary settling tank;
7) enter secondary settling tank through the waste water that biological contact oxidation pond is isolated, precipitate 1.5-2h, sludge and clear water are separated, sludge It is pumped into sludge concentration tank to be concentrated, clear water using the absorption of microorganism, oxidation through making in discharge of pipes to biological aerated filter With the filtration with filtrate, COD and realization nitrification function in water removal are further removed, is filtered, is sterilized, rear discharge up to standard; Filtering uses quartz filter, quartz sand particle size 1-2mm, and disinfection uses disinfection by chlorine dioxide, hypochlorite disinfectant or pipeline Formula ultraviolet disinfection;
8) sludge entered in sludge concentration tank carries out gravity concentration in pond, and the sludge condensation time is not less than 12h, into mud, row The equal intermittent duty of mud, after concentration, supernatant is back to conditioning tank recycling, and the sludge of concentration is sent into plate and frame filter press filters pressing, filter Liquid is back to conditioning tank recycling, and filter cake outward transport recycles.
2. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the grid canal is Reinforced Concrete Structure Rectangular, the grid of grid canal is artificial grid or mechanical grille, when the grid quantity of slag is more than 0.2m3/d, using stainless steel or anti-corrosion Carbon steel machinery rotation grid.
3. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the oil partiting precipitation pool 2 is steel concrete knot Structure it is rectangular, can build jointly and be structure as a whole with grid canal.
4. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the sewage conditioning tank 3 is by underground Square hollow body made of formula armored concrete is provided with more curved surface blenders made of stainless steel or glass reinforced plastic, blender Power is 5w/m3.
5. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the air flotation oil remover is anti-for carbon steel Rotten structure it is rectangular.
6. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the biological contact oxidation pond is Reinforced Concrete Structure it is round or rectangular.
7. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the sedimentation basin is round or rectangular Reinforced Concrete Structure.
8. the slaughterhouse wastewater treatment method according to claim, which is characterized in that the sludge concentration tank is open circles Shape or rectangular Reinforced Concrete Structure, effective depth 3-4m, superelevation 0.3-0.5m.
CN201811188645.7A 2018-10-12 2018-10-12 A kind of slaughterhouse wastewater treatment method Withdrawn CN109133538A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111115970A (en) * 2020-01-13 2020-05-08 江苏开放大学(江苏城市职业学院) Meat processing sewage treatment method and sewage treatment device used by same
CN111115971A (en) * 2020-01-13 2020-05-08 江苏开放大学(江苏城市职业学院) Poultry processing sewage treatment device and sewage treatment method
CN111204921A (en) * 2020-01-09 2020-05-29 昆山水清华环保科技有限公司 Spraying factory sewage treatment process
CN111470715A (en) * 2020-04-15 2020-07-31 河南恒安环保科技有限公司 Method for treating and recycling rice puffed food wastewater
CN111635062A (en) * 2019-03-01 2020-09-08 江苏碧沃丰环境科技有限公司 Wastewater treatment process
CN112010511A (en) * 2020-09-09 2020-12-01 福建环球环保科技发展有限公司 Small complete equipment for treating production wastewater and treatment process thereof
CN112408723A (en) * 2020-12-07 2021-02-26 深圳市浩天源环保科技有限公司 Slaughterhouse wastewater treatment method and system
CN113117392A (en) * 2021-06-16 2021-07-16 山东彩客东奥化学有限公司 Organic wastewater treatment process and device
CN113371943A (en) * 2021-06-29 2021-09-10 成都飞创科技有限公司 Method for treating wastewater of farm
CN113666528A (en) * 2020-05-14 2021-11-19 中国节能减排有限公司 Process for treating tail water of sewage to reach standard

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105254113A (en) * 2014-10-12 2016-01-20 砀山圣沣食品有限公司 Slaughter wastewater treatment device
CN106116031A (en) * 2016-07-28 2016-11-16 云南珠源环保工程有限公司 A kind of efficient treatment process of slaughtering wastewater
CN106977040A (en) * 2016-01-15 2017-07-25 厦门聚龙腾威环境工程技术有限公司 The technique that slaughtering wastewater is handled using UCT
CN206408057U (en) * 2016-12-29 2017-08-15 修武县伊赛牛肉有限公司 A kind of recycling treatment system of slaughtering wastewater

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105254113A (en) * 2014-10-12 2016-01-20 砀山圣沣食品有限公司 Slaughter wastewater treatment device
CN106977040A (en) * 2016-01-15 2017-07-25 厦门聚龙腾威环境工程技术有限公司 The technique that slaughtering wastewater is handled using UCT
CN106116031A (en) * 2016-07-28 2016-11-16 云南珠源环保工程有限公司 A kind of efficient treatment process of slaughtering wastewater
CN206408057U (en) * 2016-12-29 2017-08-15 修武县伊赛牛肉有限公司 A kind of recycling treatment system of slaughtering wastewater

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111635062A (en) * 2019-03-01 2020-09-08 江苏碧沃丰环境科技有限公司 Wastewater treatment process
CN111204921A (en) * 2020-01-09 2020-05-29 昆山水清华环保科技有限公司 Spraying factory sewage treatment process
CN111115970A (en) * 2020-01-13 2020-05-08 江苏开放大学(江苏城市职业学院) Meat processing sewage treatment method and sewage treatment device used by same
CN111115971A (en) * 2020-01-13 2020-05-08 江苏开放大学(江苏城市职业学院) Poultry processing sewage treatment device and sewage treatment method
CN111470715A (en) * 2020-04-15 2020-07-31 河南恒安环保科技有限公司 Method for treating and recycling rice puffed food wastewater
CN113666528A (en) * 2020-05-14 2021-11-19 中国节能减排有限公司 Process for treating tail water of sewage to reach standard
CN112010511A (en) * 2020-09-09 2020-12-01 福建环球环保科技发展有限公司 Small complete equipment for treating production wastewater and treatment process thereof
CN112408723A (en) * 2020-12-07 2021-02-26 深圳市浩天源环保科技有限公司 Slaughterhouse wastewater treatment method and system
CN113117392A (en) * 2021-06-16 2021-07-16 山东彩客东奥化学有限公司 Organic wastewater treatment process and device
CN113117392B (en) * 2021-06-16 2021-08-24 山东彩客东奥化学有限公司 Organic wastewater treatment process and device
CN113371943A (en) * 2021-06-29 2021-09-10 成都飞创科技有限公司 Method for treating wastewater of farm

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