CN103466882A - Livestock and poultry breeding wastewater treatment technology - Google Patents

Livestock and poultry breeding wastewater treatment technology Download PDF

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Publication number
CN103466882A
CN103466882A CN2013104139517A CN201310413951A CN103466882A CN 103466882 A CN103466882 A CN 103466882A CN 2013104139517 A CN2013104139517 A CN 2013104139517A CN 201310413951 A CN201310413951 A CN 201310413951A CN 103466882 A CN103466882 A CN 103466882A
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CN
China
Prior art keywords
tank
pond
enters
water
treatment
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Pending
Application number
CN2013104139517A
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Chinese (zh)
Inventor
姚明
赵晓刚
胡召堂
李双建
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ANHUI LVJUREN ENVIRONMENT TECHNOLOGY Co Ltd
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ANHUI LVJUREN ENVIRONMENT TECHNOLOGY Co Ltd
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Priority to CN2013104139517A priority Critical patent/CN103466882A/en
Publication of CN103466882A publication Critical patent/CN103466882A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a livestock and poultry breeding wastewater treatment technology. The livestock and poultry breeding wastewater treatment technology comprises the steps that water in a septic tank enters an artificial grid, so that impurities are removed, and then water enters an adjusting tank; wastewater in the adjusting tank is lifted by a lift pump to enter a cavitation air floatation tank, a flocculating agent is added so as to generate flocculent precipitates, the wastewater flows into an anaerobic tank, phosphorus contained in phosphorus accumulating bacteria is released, the wastewater flows into a tank A, water flowing out of the tank A flows into a contact oxidation tank, and organic matters in the wastewater are oxidized and decomposed; the wastewater flows into a secondary sedimentation tank and is subjected to solid-liquid separation, precipitated liquid supernatant enters a disinfecting tank, ClO2 is added to the disinfection tank for disinfection, and yielding water reaching the standards is discharged through a standardized exhaust port; and the sludge treatment is carried out. The livestock and poultry breeding wastewater treatment technology has the advantages that the technological process is simple, the anaerobic biochemical treatment and the aerobiotic biochemical treatment are combined, nitrogen and phosphorus are removed; sludge is rich in phosphorus and has very high fertilizer efficiency; and the comprehensive energy consumption is low, the high-efficiency energy conservation is realized, the shock resistance is strong, the control requirements are low, and the secondary pollution is avoided.

Description

The livestock breeding wastewater treatment process
Technical field
The invention belongs to the wastewater treatment of animal husbandry field, specifically the livestock breeding wastewater treatment process.
Background technology
Livestock-raising has become one of three large sources of water environment pollution.Along with developing rapidly of China's livestock industry, the livestock and poultry cultivation scale is increasing, and the livestock-raising field produces the movement brought and the poisonous residue brought by animal and fowl fodder and product is also more and more serious to the pollution of ecotope.The wastewater flow rate of large-scale cultivation field discharge every day is large, concentrated; and contain a large amount of pollutents in waste water; as heavy metal, residual veterinary drug and a large amount of pathogenic agent etc., therefore as without processing just be thrown into environment or directly agricultural, will cause the severe contamination in local environment and farmland.
The problem of environmental pollution that livestock and poultry breeding industry produces not only appears at the plant of mass-producing, small scale and relatively concentrated Animal Raising Zone also faces same problem.Along with the anxiety at cities and towns expansion, industrial development and water source, livestock and poultry farm more and more difficulty is looked for " place ".The cultivation industry of managing in meagre profit for China, build that the required investment of the dirty treatment facility of such excrement is too large, working cost is too high.Therefore, seek that facility investment is few, working cost is low and the aquaculture excrement pollution discharge treatment method of highly-efficient treatment, become and solved the key point that aquaculture is polluted.
Summary of the invention
The object of the present invention is to provide a kind of livestock breeding wastewater treatment process.
Purpose of the present invention can be achieved through the following technical solutions:
The livestock breeding wastewater treatment process, is characterized in that, comprises the following steps:
(1) pre-treatment: septic tank water enters artificial grid and filters out impurities, and then enters equalizing tank, establishes stirrer in equalizing tank, by stirring action, the waste water homogeneous is all measured;
(2) anaerobic biological is processed: in equalizing tank, waste water promotes and enters the cavitation air flotation pond through lift pump, add flocculation agent and produce flocculation sediment, waste water flows into anaerobic pond, and the phosphorus that polyP bacteria contains is discharged, wastewater streams is to the A pond, and organism carries out the denitrification denitrogenation reaction in the A pond;
(3) aerobic treatment: the water outlet of A pond flows into contact-oxidation pool, and organism in waste water is carried out to oxidation, decomposition;
(4) solid-liquid separation: step (3) wastewater streams carries out solid-liquid separation to second pond, and the supernatant liquor after precipitation enters sterilization pool, adds ClO 2carry out disinfection, water outlet is through standardization row mouthful qualified discharge;
(5) sludge treatment: the cavitation air flotation scum silica frost enters sludge thickener, the mud of contact-oxidation pool enters sludge thickener, the mud of second pond enters sludge thickener, the supernatant liquor of sludge thickener is back to equalizing tank, mud after concentrated is squeezed into chamber filter press by spiral pump and is dewatered, the mud cake outward transport.
Be provided with water distributor in described anaerobic pond.
Described A is provided with elastic solid filler, stirrer in pond.
Be provided with aerating system, filler, reflux pump in described contact-oxidation pool, the microbial film contact on the waste water filler, microorganism carries out oxidation, decomposition to the organism in waste water, by aerating system, to the filler air blast, increases the dissolved oxygen in water.
Beneficial effect of the present invention: technical process of the present invention is simple, in conjunction with anaerobic biological processing, aerobic treatment, removes nitrogen, phosphorus; Phosphorous height in mud, have very high fertilizer efficiency; Comprehensive energy consumption is low, energy-efficient, strong shock resistance, control requires low, do not produce secondary pollution.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
The waste water quality data that table 1 is embodiment 1-4.
 
? Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
CODcr(mg/L) 1876 1745 1922 2071
BOD(mg/L) 1017 1120 1168 995
SS(mg/L) 1400 1384 1466 1500
NH3-N(mg/L) 140 120 150 137
TP(mg/L) 28 27 30 29
Coliform number (individual/100mL) 4300 4279 4100 4217
Roundworm egg number (individual/L) 20 17 14.2 16.5
Technique of the present invention is: comprise the following steps:
1, pre-treatment: at first septic tank water enter artificial grid and filter out impurities, and enters equalizing tank, is provided with stirrer in equalizing tank, by stirring action, the waste water homogeneous all measured.
2, anaerobic biological is processed: in equalizing tank, waste water promotes and enters the cavitation air flotation pond through lift pump, add flocculation agent and produce flocculation sediment, waste water flows into anaerobic pond, and the phosphorus that polyP bacteria contains is discharged, wastewater streams is to the A pond, and organism carries out the denitrification denitrogenation reaction in the A pond;
3, aerobic treatment: the water outlet of A pond flows into contact-oxidation pool, and organism in waste water is carried out to oxidation, decomposition;
4, solid-liquid separation: step (3) wastewater streams carries out solid-liquid separation to second pond, and the supernatant liquor after precipitation enters sterilization pool, adds ClO 2carry out disinfection, water outlet is through standardization row mouthful qualified discharge;
5, sludge treatment: the cavitation air flotation scum silica frost enters sludge thickener, the mud of contact-oxidation pool enters sludge thickener, the mud of second pond enters sludge thickener, the supernatant liquor of sludge thickener is back to equalizing tank, mud after concentrated is squeezed into chamber filter press by spiral pump and is dewatered, the mud cake outward transport.
The preparation technology of embodiment 1-4 is identical, as mentioned above.
Table 2 is the data after art breading of the present invention.
? Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
CODcr(mg/L) 96 60 77 85
BOD(mg/L) 16 19 18 15
SS(mg/L) 61 55 58 66
NH3-N(mg/L) 12 11 14 13
TP(mg/L) 0.4 0.32 0.36 0.3
Coliform number (individual/100mL) 870 760 900 716
Roundworm egg number (individual/L) 2 1.8 1.3 1.5

Claims (4)

1. the livestock breeding wastewater treatment process, is characterized in that, comprises the following steps:
(1) pre-treatment: septic tank water enters artificial grid and filters out impurities, and then enters equalizing tank, establishes stirrer in equalizing tank, by stirring action, the waste water homogeneous is all measured;
(2) anaerobic biological is processed: in equalizing tank, waste water promotes and enters the cavitation air flotation pond through lift pump, add flocculation agent and produce flocculation sediment, waste water flows into anaerobic pond, and the phosphorus that polyP bacteria contains is discharged, wastewater streams is to the A pond, and organism carries out the denitrification denitrogenation reaction in the A pond;
(3) aerobic treatment: the water outlet of A pond flows into contact-oxidation pool, and organism in waste water is carried out to oxidation, decomposition;
(4) solid-liquid separation: step (3) wastewater streams carries out solid-liquid separation to second pond, and the supernatant liquor after precipitation enters sterilization pool, adds ClO 2carry out disinfection, water outlet is through standardization row mouthful qualified discharge;
(5) sludge treatment: the cavitation air flotation scum silica frost enters sludge thickener, the mud of contact-oxidation pool enters sludge thickener, the mud of second pond enters sludge thickener, the supernatant liquor of sludge thickener is back to equalizing tank, mud after concentrated is squeezed into chamber filter press by spiral pump and is dewatered, the mud cake outward transport.
2. livestock breeding wastewater treatment process according to claim 1, is characterized in that, in described anaerobic pond, is provided with water distributor.
3. livestock breeding wastewater treatment process according to claim 1, is characterized in that, described A is provided with elastic solid filler, stirrer in pond.
4. livestock breeding wastewater treatment process according to claim 1, it is characterized in that, be provided with aerating system, filler, reflux pump in described contact-oxidation pool, microbial film contact on the waste water filler, microorganism carries out oxidation, decomposition to the organism in waste water, by aerating system, to the filler air blast, increase the dissolved oxygen in water.
CN2013104139517A 2013-09-12 2013-09-12 Livestock and poultry breeding wastewater treatment technology Pending CN103466882A (en)

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Application Number Priority Date Filing Date Title
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310706A (en) * 2014-10-21 2015-01-28 农业部环境保护科研监测所 Method for comprehensive treatment of dung of dry dung collection dairy farm as pasture of less than 500 livestock on hand
CN104326561A (en) * 2014-11-18 2015-02-04 华中农业大学 Method for improving livestock and poultry breeding wastewater treatment efficiency via strengthening of multistage microorganisms
CN104961289A (en) * 2015-03-27 2015-10-07 湖北源中清生物环保科技有限公司 Micro-nano aeration high-efficiency biotreatment technical system for livestock and poultry breeding wastewater
CN105217884A (en) * 2015-09-18 2016-01-06 北京环业兴吉科技有限公司 A kind of city nightsoil garbage comprehensive treatment technology
CN105541003A (en) * 2015-12-11 2016-05-04 青岛清科环保科技有限公司 Method for treating aquaculture wastewater
CN106315983A (en) * 2016-09-30 2017-01-11 广西罗城科潮基业科技发展有限公司 Starch alcohol wastewater treatment system and method
CN106746212A (en) * 2016-12-20 2017-05-31 怀宁县森源生态养殖有限公司 A kind of handling process of Pig raising wastewater
CN106746004A (en) * 2016-12-27 2017-05-31 重庆亚协环保工程有限公司 Cultivation excrement treatment method
CN106857272A (en) * 2017-03-10 2017-06-20 湖南三湘智谷技术有限公司 A kind of breeding house and cultivating system
CN106922550A (en) * 2017-03-10 2017-07-07 湖南三湘智谷技术有限公司 A kind of breeding house and cultivating system
CN106962208A (en) * 2017-03-10 2017-07-21 湖南三湘智谷技术有限公司 A kind of breeding house and cultivating system
CN107117771A (en) * 2017-06-01 2017-09-01 杨水红 A kind of aquaculture wastewater joint processing system and its method
CN107628726A (en) * 2016-07-19 2018-01-26 梁开新 A kind of cultivating wastewater purification method
CN110002666A (en) * 2019-03-25 2019-07-12 中国水产科学研究院南海水产研究所 Nitration denitrification circulating water treatment method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103183446A (en) * 2011-12-29 2013-07-03 宜兴市金琪洋生物质环境治理技术咨询有限公司 Treatment device for piggery wastewater

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103183446A (en) * 2011-12-29 2013-07-03 宜兴市金琪洋生物质环境治理技术咨询有限公司 Treatment device for piggery wastewater

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104310706A (en) * 2014-10-21 2015-01-28 农业部环境保护科研监测所 Method for comprehensive treatment of dung of dry dung collection dairy farm as pasture of less than 500 livestock on hand
CN104326561A (en) * 2014-11-18 2015-02-04 华中农业大学 Method for improving livestock and poultry breeding wastewater treatment efficiency via strengthening of multistage microorganisms
CN104326561B (en) * 2014-11-18 2016-04-20 华中农业大学 A kind of multistage microbial augmentation improves the method for livestock breeding wastewater processing efficiency
CN104961289A (en) * 2015-03-27 2015-10-07 湖北源中清生物环保科技有限公司 Micro-nano aeration high-efficiency biotreatment technical system for livestock and poultry breeding wastewater
CN105217884A (en) * 2015-09-18 2016-01-06 北京环业兴吉科技有限公司 A kind of city nightsoil garbage comprehensive treatment technology
CN105541003A (en) * 2015-12-11 2016-05-04 青岛清科环保科技有限公司 Method for treating aquaculture wastewater
CN107628726A (en) * 2016-07-19 2018-01-26 梁开新 A kind of cultivating wastewater purification method
CN106315983A (en) * 2016-09-30 2017-01-11 广西罗城科潮基业科技发展有限公司 Starch alcohol wastewater treatment system and method
CN106315983B (en) * 2016-09-30 2019-07-26 广西罗城科潮基业科技发展有限公司 A kind of starch alcohol waste water processing system and method
CN106746212A (en) * 2016-12-20 2017-05-31 怀宁县森源生态养殖有限公司 A kind of handling process of Pig raising wastewater
CN106746004A (en) * 2016-12-27 2017-05-31 重庆亚协环保工程有限公司 Cultivation excrement treatment method
CN106922550A (en) * 2017-03-10 2017-07-07 湖南三湘智谷技术有限公司 A kind of breeding house and cultivating system
CN106962208A (en) * 2017-03-10 2017-07-21 湖南三湘智谷技术有限公司 A kind of breeding house and cultivating system
CN106857272A (en) * 2017-03-10 2017-06-20 湖南三湘智谷技术有限公司 A kind of breeding house and cultivating system
CN107117771A (en) * 2017-06-01 2017-09-01 杨水红 A kind of aquaculture wastewater joint processing system and its method
CN110002666A (en) * 2019-03-25 2019-07-12 中国水产科学研究院南海水产研究所 Nitration denitrification circulating water treatment method

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Application publication date: 20131225