CN103601333A - Processing system and processing method for high concentration sewage in pig farm - Google Patents
Processing system and processing method for high concentration sewage in pig farm Download PDFInfo
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- CN103601333A CN103601333A CN201310473662.6A CN201310473662A CN103601333A CN 103601333 A CN103601333 A CN 103601333A CN 201310473662 A CN201310473662 A CN 201310473662A CN 103601333 A CN103601333 A CN 103601333A
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Abstract
The invention discloses a processing system and a processing method for high concentration sewage in a pig farm. The processing system for the high concentration sewage in the pig farm comprises combined air flotation, a biological filter and a biochemical processing pool with a spherical membrane therein. The processing method for the high concentration sewage in the pig farm comprises two steps of primary physicochemical treatment and aerobic biochemical treatment. The processing system and the processing method have the beneficial effects that dry dirt can be used as an organic fertilizer to promote benign ecological circle development of pork production and drive optimization and adjustment of agricultural structures; the sewage in the pig farm is treated by the primary physicochemical treatment and the aerobic biochemical treatment, i.e., an A2O+MBBR method, so that expensive treatment cost can be reduced and the method is convenient for popularization; the high concentration sewage in the pig farm can be treated efficiently so as to meet a national discharge standard; recycled water is used for recovering the treated sewage, so that water source is saved; due to the application of an emulsion PAM, the content of organic materials in the sludge is increased while heat value of the sewage is kept; objects of sludge reduction and harmless treatment can be achieved; a sustainable development road is reserved for sludge resources; and paths of biochemical sludge utilization are broadened.
Description
Technical field
The present invention relates to live pig production field, relate in particular to pig farm high-concentration sewage treatment system and treatment process.
Background technology
It is the important component part in rural economy chain that live pig produces, but live pig produces ecotope and resident living that formation sewage quantity problem large, that concentration is high has a strong impact on periphery, is problem demanding prompt solution during scale pig farm produces.At present, waste water control is had to a lot of research.In debugging > > (< < guangdong agricultural science > > 37 1 phases of volume in 2010), the design of < < pig breeding farm waste water treatment engineering and operation propose to adopt anaerobic-aerobic-coagulation-settlement process to process high density Wastewater from Pig Farm; In < < MBBR method, process in pig farm sewage experimental study > > (the journal > > of < < Changchun University of Science and Technology 32 1 phases of volume in 2009) and propose to adopt MBBR (MBBR) to process pig farm sewage; In the treatment effect > > (< < China's water supply and drainage > > 18 2 phases of volume in 2002) of < < high dispersive, high mass transfer aerobic biochemical reactor, propose to adopt the high mass transfer aerobic biochemical of high-disperse-system reactor centering high-concentration waste water to carry out direct aerobic aeration processing.Although it is a lot of that these methods are improved than traditional wastewater processing mode, but for the processing of mud, ignored the recycling that water has also been ignored in ecological cycle development simultaneously in treating processes, therefore,, in order to address the above problem, the invention provides a kind of new technical scheme.
Summary of the invention
In order to address the above problem, the invention provides a kind of pig farm high-concentration sewage treatment system and treatment process.
The technical solution used in the present invention: pig farm high-concentration sewage treatment system comprises combined air flotation, the biochemical treatment tank of biological filter and built-in spherical film, combined air flotation injects case continuously with two chemical reagent meterings respectively, materialized mud pond, biological filter is connected by pipeline with grille well, biological filter is connected by pipeline with one end of the biochemical treatment tank of built-in spherical film, the biochemical treatment tank of built-in spherical film is provided with oxygen supply equipment, the other end of the biochemical treatment tank of built-in spherical film is connected by pipeline with one end of settling tank, the other end of settling tank is connected by pipeline with materialized mud pond, materialized mud pond is connected by pipeline with one end of belt press filtration treatment facility, the other end of described press filtration treatment facility is connected by pipeline with one end of anaerobic fixed film reactor, the other end of described anaerobic fixed film reactor is connected by pipeline with one end of grille well.
Pig farm process for treating high-concentration sewage comprises one-level materialization and two steps of aerobic biochemical:
One-level materialization: the sewage through anaerobic hydrolysis and grille well filtration enters combined air flotation, with the speed of 260-300L/h, 350-400mL/h, in combined air flotation, inject the aluminium chlorohydroxide solution coagulating agent of 7.5%-10%, the emulsion PAM coagulant aids of 0.3-0.5% respectively, sewage is carried out to materialization processing, isolated organic pollutant is sent into materialized mud pond, by belt press filtration treatment facility, carry out solid-liquid separation again, separated dry dirt is made fertilizer, separated liquid enters anaerobic fixed film reactor, then enters combined air flotation repetition said process until isolate dry dirt;
Aerobic biochemical: the water completing by said process preliminary treatment enters biological filter and carries out anaerobic/anoxic processing filtering-depositing, then enter in the biochemical treatment tank of built-in spherical film, oxygen supply equipment carries out aerobic treatment to water body, spherical membrane technique is processed increases active sludge carrier volume, strengthen the capacity of resisting impact load of biochemical sludge, improve the adsorptive power of mud to the nitrogen phosphate and sulfur ion in water, last water enters settling tank and carries out mud-water separation, the sewage qualified discharge after processing or be directly used in pig farm and recycle.
PAM is poly-propionic acid amide, and emulsion PAM is cationic polymers.
Beneficial effect of the present invention: dry dirt is made fertilizer and can be promoted live pig to produce optimum ecological circulation development, drives the structure of agricultural production to optimize and revise; It is A that one-level materialization adds aerobic biochemical
2o+MBBR method is processed the sewage on pig farm, reduces expensive processing cost, is convenient to promote; Effectively process high density pig farm sewage, make it to reach discharging standards, in use, water reclaims, saving water resource; The application of emulsion PAM, when keeping sludge calorific value, improves the content of mud organic substance, has reached sludge reduction, innoxious object, for recycling sludge, has reserved the road of Sustainable development, has expanded the approach that biochemical sludge utilizes.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
As shown in Figure 1, pig farm high-concentration sewage treatment system comprises combined air flotation, the biochemical treatment tank of biological filter and built-in spherical film, combined air flotation injects case continuously with two chemical reagent meterings respectively, materialized mud pond, biological filter is connected by pipeline with grille well, biological filter is connected by pipeline with one end of the biochemical treatment tank of built-in spherical film, the biochemical treatment tank of built-in spherical film is provided with oxygen supply equipment, the other end of the biochemical treatment tank of built-in spherical film is connected by pipeline with one end of settling tank, the other end of settling tank is connected by pipeline with materialized mud pond, materialized mud pond is connected by pipeline with one end of belt press filtration treatment facility, the other end of described press filtration treatment facility is connected by pipeline with one end of anaerobic fixed film reactor, the other end of described anaerobic fixed film reactor is connected by pipeline with one end of grille well.
Pig farm process for treating high-concentration sewage comprises one-level materialization and two steps of aerobic biochemical:
One-level materialization: the sewage through anaerobic hydrolysis and grille well filtration enters combined air flotation, with the speed of 260-300L/h, 350-400mL/h, in combined air flotation, inject the aluminium chlorohydroxide solution coagulating agent of 7.5%-10%, the emulsion PAM coagulant aids of 0.3-0.5% respectively, sewage is carried out to materialization processing, isolated organic pollutant is sent into materialized mud pond, by belt press filtration treatment facility, carry out solid-liquid separation again, separated dry dirt is made fertilizer, separated liquid enters anaerobic fixed film reactor, then enters combined air flotation repetition said process until isolate dry dirt;
Aerobic biochemical: the water completing by said process preliminary treatment enters biological filter and carries out anaerobic/anoxic processing filtering-depositing, then enter in the biochemical treatment tank of built-in spherical film, oxygen supply equipment carries out aerobic treatment to water body, spherical membrane technique is processed increases active sludge carrier volume, strengthen the capacity of resisting impact load of biochemical sludge, improve the adsorptive power of mud to the nitrogen phosphate and sulfur ion in water, last water enters settling tank and carries out mud-water separation, the sewage qualified discharge after processing or be directly used in pig farm and recycle.
PAM is poly-propionic acid amide, and emulsion PAM is cationic polymers.
Beneficial effect of the present invention: dry dirt is made fertilizer and can be promoted live pig to produce optimum ecological circulation development, drives the structure of agricultural production to optimize and revise; It is A that one-level materialization adds aerobic biochemical
2o+MBBR method is processed the sewage on pig farm, reduces expensive processing cost, is convenient to promote; Effectively process high density pig farm sewage, make it to reach discharging standards, in use, water reclaims, saving water resource; The application of emulsion PAM, when keeping sludge calorific value, improves the content of mud organic substance, has reached sludge reduction, innoxious object, for recycling sludge, has reserved the road of Sustainable development, has expanded the approach that biochemical sludge utilizes.
Claims (2)
1. pig farm high-concentration sewage treatment system, it is characterized in that: this system comprises combined air flotation, the biochemical treatment tank of biological filter and built-in spherical film, described combined air flotation injects case continuously with two chemical reagent meterings respectively, materialized mud pond, biological filter is connected by pipeline with grille well, described biological filter is connected by pipeline with one end of the biochemical treatment tank of built-in spherical film, the biochemical treatment tank of described built-in spherical film is provided with oxygen supply equipment, the other end of the biochemical treatment tank of described built-in spherical film is connected by pipeline with one end of settling tank, the other end of described settling tank is connected by pipeline with materialized mud pond, described materialized mud pond is connected by pipeline with one end of belt press filtration treatment facility, the other end of described press filtration treatment facility is connected by pipeline with one end of anaerobic fixed film reactor, the other end of described anaerobic fixed film reactor is connected by pipeline with one end of grille well.
2. the treatment process of pig farm according to claim 1 high-concentration sewage treatment system, is characterized in that: the method comprises one-level materialization and two steps of aerobic biochemical:
A, one-level materialization: the sewage through anaerobic hydrolysis and grille well filtration enters combined air flotation, with the speed of 260-300L/h, 350-400mL/h, in combined air flotation, inject the aluminium chlorohydroxide solution coagulating agent of 7.5%-10%, the emulsion PAM coagulant aids of 0.3-0.5% respectively, sewage is carried out to materialization processing, isolated organic pollutant is sent into materialized mud pond, by belt press filtration treatment facility, carry out solid-liquid separation again, separated dry dirt is made fertilizer, separated liquid enters anaerobic fixed film reactor, then enters combined air flotation repetition said process until isolate dry dirt;
B, aerobic biochemical: the water completing by said process preliminary treatment enters biological filter and carries out anaerobic/anoxic processing filtering-depositing, then enter in the biochemical treatment tank of built-in spherical film, oxygen supply equipment carries out aerobic treatment to water body, spherical membrane technique is processed increases active sludge carrier volume, strengthen the capacity of resisting impact load of biochemical sludge, improve the adsorptive power of mud to the nitrogen phosphate and sulfur ion in water, last water enters settling tank and carries out mud-water separation, the sewage qualified discharge after processing or be directly used in pig farm and recycle.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104743736A (en) * | 2014-08-12 | 2015-07-01 | 安徽一隆羽绒有限公司 | Down feather washing wastewater treatment system |
| CN105036470A (en) * | 2015-07-21 | 2015-11-11 | 常州大学 | Pig farm waste water and manure processing system |
| CN105967457A (en) * | 2016-07-07 | 2016-09-28 | 全椒县夏军养猪专业合作社 | Treatment and reutilization method for piggery sewage |
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| CN104743736A (en) * | 2014-08-12 | 2015-07-01 | 安徽一隆羽绒有限公司 | Down feather washing wastewater treatment system |
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Application publication date: 20140226 |