CN103086566A - Method for processing aquaculture wastewater of pig farm - Google Patents
Method for processing aquaculture wastewater of pig farm Download PDFInfo
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- CN103086566A CN103086566A CN2012105468432A CN201210546843A CN103086566A CN 103086566 A CN103086566 A CN 103086566A CN 2012105468432 A CN2012105468432 A CN 2012105468432A CN 201210546843 A CN201210546843 A CN 201210546843A CN 103086566 A CN103086566 A CN 103086566A
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- waste water
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/40—Bio-organic fraction processing; Production of fertilisers from the organic fraction of waste or refuse
Abstract
The invention discloses a method for processing aquaculture wastewater of a pig farm. The method comprises the steps of removing solid substances such as pig manure and the like by a thick grating, a fine grating and a muddy water separator; then pumping the waste water into a floatation tank; exposing the floatation tank by a spherical aeration valve to further remove suspended matters; enabling the waste water to flow into a regulating reservoir from the floatation tank, and enter into an anaerobic reactor via a lift pump in a lifting manner; refluxing sludge in anaerobic generation to a sludge drying bed; composting together with the pig manure from solid-liquid separation after naturally drying; pumping the wastewater pump processed by the anaerobic reactor into the aeration tank; mixing with active sludge inside the tank with oxygen; and discharging the processed waste water to an ecological oxidation pond. The method is simple in process, small in floor area, strong in processing capacity, simple to operate, and less in processed residual sludge; and the capital expenditure is saved.
Description
Technical field
The present invention relates to the processing of waste water, specifically a kind of method of processing the pig farm breeding wastewater.
Background technology
The pig farm breeding wastewater mainly is comprised of urine, remaining ight soil, food-residue and wash-down water etc., and wherein wash-down water has accounted for the overwhelming majority.The Wastewater from Pig Farm water quality characteristic is relevant with use, feed nutrition, pig digestive function and the production management etc. of pig house structure, clear excrement mode and wash-down water.Because the pig industry concentration of organic wastewater is very high, and wherein contain the compositions such as a large amount of nitrogen, phosphorus, suspended substance, pathogenic bacterium, these pollutents are as suitably processing, in case enter natural water body, the farmland will cause serious environmental pollution.
Owing to containing the nutrients such as more nitrogen, phosphorus in the waste water of raising pigs, if accomplish that Rational Application can increase soil fertility effectively, the physicochemical property of improvement soil promotes the growth of farm crop.If but without any processing with regard to direct, continuous, excessive using, cause bad impact can for the growth of soil and farm crop, as cause crop excessive growth, turn green, lodge, output is reduced greatly, in the postponement ripening stage, affect the production of succeeding crop etc.Therefore, it is very necessary that the pollutents such as waste water that the pig farm produced carry out effectively administering.The contriver has summed up a kind of method of processing the pig farm breeding wastewater in line with the purpose of the doulbe-sides' victory that realizes environment and benefit, and the method is easy to operate, and treatment effect is good, and can effectively utilize waste water.
Summary of the invention
The object of the present invention is to provide a kind of method of processing the pig farm breeding wastewater, by the comprehensive regulation and the utilization to piggery wastewater, thereby effectively controlled pig farm breeding wastewater environmental disruption.
Technical scheme of the present invention realizes in the steps below: a kind of method of processing the pig farm breeding wastewater, and concrete steps are as follows:
(1) remove the solid matters such as pig manure with thick, thin twice grid and mud;
(2) waste water is pumped into air flotation pool, air flotation pool adopts spherical aeration valve aeration, further removes suspended substance;
(3) then allow waste water certainly flow to equalizing tank from air flotation pool, the pH that regulates waste water is 7-8;
(4) waste water of equalizing tank promotes through lift pump and enters anaerobic reactor; Make the pollutent in waste water be transformed step by step and obtain stable degraded under the effect of different microorganisms population.
(5) sludge reflux of anaerobism generation is to the sludge drying pond, and after natural air drying, the pig manure one that goes out with solid-liquid separation is used from compost;
(6) waste water after anaerobic reactor is processed pumps into the aeration tank, mixes with active sludge in the pond and oxygen, and the organic pollutant in waste water is by activated sludge absorption and decomposition, by microbial metabolism and utilization.
(7) waste water after processing drains into the biological oxidation pool, and the biological oxidation pool is made of the pond of 3-5 series connection, and the floating plant Herba Eichhorniae is planted in the pond.
There is 2-5 in parallel the use above-mentioned aeration tank.
The mud that deposits in above-mentioned equalizing tank needs periodic cleaning, in order to avoid cause the obstruction of lift pump.
In aforesaid method, the generation methane gas is collected and fully comprehensive utilization.
Advantage of the present invention: technique is simple, and floor space is few, saves capital cost; Good denitrogenation and dephosphorization effect; Operation scheme is flexible, and anti impulsion load, processing power are strong; Mechanization degree is high, and is simple to operate.After processing, surplus sludge volume is few.This pig farm breeding wastewater treatment station operation, convenient management.
Embodiment
A kind of method of processing the pig farm breeding wastewater, its concrete steps are as follows:
(1) remove the solid matters such as pig manure with thick, thin twice grid and mud;
(2) waste water is pumped into air flotation pool, air flotation pool adopts spherical aeration valve aeration, further removes suspended substance;
(3) then allow waste water certainly flow to equalizing tank from air flotation pool, the pH that regulates waste water is 7-8; The mud that deposits in equalizing tank needs periodic cleaning, in order to avoid cause the obstruction of lift pump.
(4) waste water of equalizing tank promotes through lift pump and enters anaerobic reactor; Make the pollutent in waste water be transformed step by step and obtain stable degraded under the effect of different microorganisms population.
(5) sludge reflux of anaerobism generation is to the sludge drying pond, and after natural air drying, the pig manure one that goes out with solid-liquid separation is used from compost;
(6) waste water after anaerobic reactor is processed pumps into the aeration tank, mixes with active sludge in the pond and oxygen, and the organic pollutant in waste water is by activated sludge absorption and decomposition, by microbial metabolism and utilization; There is 2-5 in parallel the use described aeration tank.
(7) waste water after processing drains into the biological oxidation pool, and the biological oxidation pool is made of the pond of 3-5 series connection, and the floating plant Herba Eichhorniae is planted in the pond.
Producing methane gas in aforesaid method is collected and is utilized.
Claims (2)
1. method of processing the pig farm breeding wastewater is characterized in that its concrete steps are as follows:
(1) remove the solid matters such as pig manure with thick, thin twice grid and mud;
(2) waste water is pumped into air flotation pool, air flotation pool adopts spherical aeration valve aeration, further removes suspended substance;
(3) then allow waste water certainly flow to equalizing tank from air flotation pool, the pH that regulates waste water is 7-8;
(4) waste water of equalizing tank promotes through lift pump and enters anaerobic reactor; Make the pollutent in waste water be transformed step by step and obtain stable degraded under the effect of different microorganisms population;
(5) sludge reflux of anaerobism generation is to the sludge drying pond, and after natural air drying, the pig manure one that goes out with solid-liquid separation is used from compost;
(6) waste water after anaerobic reactor is processed pumps into the aeration tank, mixes with active sludge in the pond and oxygen, and the organic pollutant in waste water is by activated sludge absorption and decomposition, by microbial metabolism and utilization;
(7) waste water after processing drains into the biological oxidation pool, and the biological oxidation pool is made of the pond of 3-5 series connection, and the floating plant Herba Eichhorniae is planted in the pond.
2. the method for processing according to claim 1 pig farm breeding wastewater, is characterized in that the aeration tank in described step (5) is 2-5 in parallel the use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105468432A CN103086566A (en) | 2012-12-17 | 2012-12-17 | Method for processing aquaculture wastewater of pig farm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105468432A CN103086566A (en) | 2012-12-17 | 2012-12-17 | Method for processing aquaculture wastewater of pig farm |
Publications (1)
| Publication Number | Publication Date |
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| CN103086566A true CN103086566A (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012105468432A Pending CN103086566A (en) | 2012-12-17 | 2012-12-17 | Method for processing aquaculture wastewater of pig farm |
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| CN (1) | CN103086566A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435224A (en) * | 2013-08-21 | 2013-12-11 | 江苏鑫林环保设备有限公司 | Waste water treatment technology for livestock breeding |
| CN104058558A (en) * | 2014-07-10 | 2014-09-24 | 南京农业大学 | Method for recycling sewage of pig farm |
| CN104140182A (en) * | 2014-07-23 | 2014-11-12 | 湖南富利来环保科技工程有限公司 | Organic sewage treatment system based on siphonage principle |
| CN104310705A (en) * | 2014-10-21 | 2015-01-28 | 农业部环境保护科研监测所 | Comprehensive faces treatment method for community-type dry-manure-collection dairy farm with breeding stock of less than 500 |
| 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 |
| 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 |
| CN105503282A (en) * | 2016-01-05 | 2016-04-20 | 国家林业局竹子研究开发中心 | Method for preparing liquid manure from piggery cultivation waste in zero-release mode |
| CN108726796A (en) * | 2018-05-30 | 2018-11-02 | 甘肃前进牧业科技有限责任公司 | A kind of processing method of milk cattle cultivating waste water |
-
2012
- 2012-12-17 CN CN2012105468432A patent/CN103086566A/en active Pending
Non-Patent Citations (1)
| Title |
|---|
| 何占飞等: "混合工艺处理猪场养殖废水研究", 《广东农业科学》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103435224A (en) * | 2013-08-21 | 2013-12-11 | 江苏鑫林环保设备有限公司 | Waste water treatment technology for livestock breeding |
| CN104058558A (en) * | 2014-07-10 | 2014-09-24 | 南京农业大学 | Method for recycling sewage of pig farm |
| CN104058558B (en) * | 2014-07-10 | 2016-04-06 | 南京农业大学 | A kind of circulation utilization method of wastewater from pig farm |
| CN104140182A (en) * | 2014-07-23 | 2014-11-12 | 湖南富利来环保科技工程有限公司 | Organic sewage treatment system based on siphonage principle |
| CN104140182B (en) * | 2014-07-23 | 2016-04-06 | 湖南富利来环保科技工程有限公司 | A kind of organic sewage treating system based on siphon principle |
| CN104310705A (en) * | 2014-10-21 | 2015-01-28 | 农业部环境保护科研监测所 | Comprehensive faces treatment method for community-type dry-manure-collection dairy farm with breeding stock of less than 500 |
| 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 |
| 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 |
| CN105503282A (en) * | 2016-01-05 | 2016-04-20 | 国家林业局竹子研究开发中心 | Method for preparing liquid manure from piggery cultivation waste in zero-release mode |
| CN108726796A (en) * | 2018-05-30 | 2018-11-02 | 甘肃前进牧业科技有限责任公司 | A kind of processing method of milk cattle cultivating waste water |
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Application publication date: 20130508 |