CN1587111A - Discharging technology for livestock feces sewage treatment to reach standard - Google Patents
Discharging technology for livestock feces sewage treatment to reach standard Download PDFInfo
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- CN1587111A CN1587111A CN 200410060847 CN200410060847A CN1587111A CN 1587111 A CN1587111 A CN 1587111A CN 200410060847 CN200410060847 CN 200410060847 CN 200410060847 A CN200410060847 A CN 200410060847A CN 1587111 A CN1587111 A CN 1587111A
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Abstract
The present invention relates to the technology of treating livestock feces sewage to reach the exhaust standard and to eliminate the pollution of exhausted sewage on water source. The process of treating livestock feces sewage includes the following steps: regulating sewage, anaerobic acidification and hydrolysis, aerobic treatment, flocculation and deposition, and zeolite adsorption. The present invention has the advantages of low cost, less covered area, simple management, etc.
Description
Technical field:
The present invention relates to a kind of livestock industry fecal sewage treatment technology, especially relate to a kind of livestock industry fecal sewage and handle the qualified discharge technology.
Background technology:
Ight soil that produces by the intensification livestock and poultry breeding industry and sewage and problems such as the stench that causes, body eutrophication, propagation " infecting both domestic animals and human " disease have caused people's very big concern.But for the improvement of plant's sewage, still lacking at present can be by the generally accepted technology of raiser, and the intractability of such waste water is very big.Existing livestock industry plant directly enters pond or rivers with fowl and animal excrement, and these contaminated water sources pour the river course in flood season with rainwater, the surface water, underground water, soil and air are caused serious pollution, and cause body eutrophication and jeopardize livestock and poultry self and HUMAN HEALTH, be the major cause of China lake and offshore sea waters eutrophication.On the other hand, progress along with development of global economy and society, people have proposed more and more higher requirement to quality of life and Food Quality, thirst for obtaining good, the nutritious food of mouthfeel, pursuit pure natural, free of contamination heath food become a kind of fashion, and the Organic farming that provides machine food for people is quietly risen.Organic farming is to comply with the product of world's environmental protection trend and consumer market demand, is to use organic fertilizer and biotic pesticide to replace chemical fertilizer and chemical insecticide in agriculture production.Processing to fowl and animal excrement can solve the contaminated water source problem, can provide fertilizer for Organic farming again.
Summary of the invention:
The fowl and animal excrement that the invention solves existing livestock industry plant directly discharging to the contaminated water source problem, provide a kind of cost low, take up an area of less, the livestock industry fecal sewage of convenient management handles the qualified discharge technology.
Purpose of the present invention is achieved through the following technical solutions: it is as follows that livestock industry fecal sewage of the present invention is handled the qualified discharge technological step:
1. sewage is regulated: collect sewage, the pH that regulates sewage is that the volume organic loading of 3.5-10.0, sewage is 8.0-12.0kgcod/ (m
3.d);
2. anaerobic acidification hydrolysis: the sewage after overregulating of learning from else's experience is sent into and is carried out the anaerobic acidification hydrolysis in the anaerobic acidification pond, and hydraulic detention time is 8-14 hour;
3. aerobic treatment: get the sewage behind the anaerobic acidification, the complex micro organism fungicide kind that will contain nitrite bacteria, thiobacillus, subtilis, Bacillus licheniformis, bacillus polymyxa, pseudomonas is carried out aerobic treatment in this sewage, the hydraulic detention time of aerobic treatment was controlled at 10-16 hour;
4. flocculation sediment: adding aluminium chlorohydroxide through in the sewage of aerobic treatment;
5. zeolite adsorption: the treatment solution that will add aluminium chlorohydroxide is through zeolite adsorption.
Advantage of the present invention is as follows:
1, have capital construction and running cost low, take up an area of less, characteristics such as convenient management, qualified discharge are effective, good in economic efficiency, can be unmanageable livestock and poultry breeding industry ight soil practicable innoxious, a recycling treatment approach and the pattern of providing be provided.Can generally be accepted by the raiser.
2, the present invention meets national environmental protection, agricultural, high-tech three big industry policy and agriculture future thrusts, can apply the ight soil of all livestock and poultry breeding industries and handle, and meets the target of country's " waste treatment industrialization ".
3, can remove suspended substance and organism in the waste water significantly in the anaerobic acidification hydrolysis section, the sludge quantity that follow-up aerobe is handled reduces effectively, thus volume of equipment also can dwindle, and, be easy to handle with the height mineralising; Simultaneously, the aerobe of its subsequent disposal is handled the excess sludge that is produced can be back to the anaerobic acidification pond in case of necessity, to increase the sludge concentration of anaerobism section, reduces the treatment capacity of mud simultaneously.
4, the anaerobic acidification hydrolysis process can play shock absorption to the variation of influent load, thereby is the comparatively stable water inlet condition of aerobe processing creation.
5, anaerobic acidification hydrolysis process working cost is low, and also can save the oxygen requirement that aerobe is handled to organic removal in the waste water, thereby saves the bulk treatment expense.
6, what is more important anaerobic acidification hydrolysis, not only can provide fine water inlet condition for aerobic process, the biodegradability of waste water is provided, thereby can improve the usefulness that aerobe is handled, and can utilize the acid-producing bacteria kind many, growth is fast and to the adaptable characteristics of envrionment conditions, is beneficial to the control of operational conditions and dwindles the volume of treatment facility.
7, anaerobic acidification hydrolysis---aerobic process not only to envrionment conditions require lowly, the required volume of anaerobism salt acidifying hydrolysis section is dwindled, can not consider that the collection of gas utilizes system simultaneously, thereby save capital cost.
8, owing to anaerobic acidification hydrolysis process organic loading rate height, hydraulic detention time is very short, so can dwindle reactor solvent, reduces investment; Before aerobe is handled, add the pre-treatment of anaerobic acidification hydrolysis process, can handle the organic waste water of middle and high concentration, and the aerobe processing efficiency improves.
Description of drawings:
Fig. 1 is a process flow sheet of the present invention.
Embodiment: (as shown in Figure 1 :)
1, equalizing tank: the sewage discharge of fowl and livestock farm in equalizing tank, is mixed well water quality and quantity, make the pH value of water reach 5.0-6.5, and the organic loading of volume adjusted reaches 9.0kgcod/ (m
3.d) about, the anaerobic acidification pond is arrived in the sewage discharge after the solid deposits in the equalizing tank.
2, anaerobic acidification hydrolysis: the anaerobic acidification hydrolysis adopts useful volume to be about the synthetic glass reactor of 8.5L, and the bottom intakes, upper strata overflow port water outlet, and hydraulic detention time is 8-12 hour, carries out the anaerobic acidification hydrolysis treatment.Water outlet voltaile fatty acid＞1000mg/L, water outlet biological oxygen demand (BOD)/chemical oxygen demand reaches 0.53, hydrolysis efficiency 40%.
3, one is heavy: will send into a heavy pond through the sewage that anaerobic acidification is handled and carry out the precipitation first time.
4, the LMT treatment agent is handled: get above-mentioned oettIed sewage and send into aerobic jar, the LMT treatment agent is inoculated into carries out aerobic treatment in this sewage.The hydraulic detention time of aerobic treatment (HRT) was controlled at 10-16 hour.Reach following index through the sewage after the processing of LMT treatment agent: the volume organic loading is about 4.0～5.0kg chemical oxygen demand/(m
3.d), the water outlet chemical oxygen demand is about 1000mg/L, and biological oxygen demand (BOD) is about 100mg/L, and ammonia-nitrogen content is about 300mg/L, and total phosphorous is about 35mg/L.
The complex microorganism that the LMT treatment agent is made up of digestion and inferior bacterial digestion, thiobacillus, Bacillus subtillis, bacillus licheniformis, bacillus polymyxa, the pseudomonas of different ratios, have the reciprocal relation of syntrophism between these microorganisms, and under different envrionment conditionss, have different metabolism performancees.
5, two is heavy: will send into second pond through the sewage of LMT treatment agent aerobic treatment and carry out secondary sedimentation.
6, flocculation sediment: adding aluminium chlorohydroxide through in the second pond sedimentary sewage, adding dose is 0.03-0.5g/l, and to regulate ph be about 5-9, stirs, and makes it abundant precipitation.
7, zeolite adsorption: will add the treatment solution of aluminium chlorohydroxide through zeolite adsorption, its processing parameter is: zeolite granular size 0.2-1.2mm, the ph that the absorption of ammonia nitrogen is removed is 4-10, static zeolite ammonia nitrogen saturated extent of adsorption is 28-30mg/g, dynamically saturated extent of adsorption is 20-22mg/g, and the zeolite addition is 10-15g/L.
Claims (7)
1 one kinds of livestock industry fecal sewages are handled the qualified discharge technology, and it is characterized in that: it may further comprise the steps:
1. sewage is regulated: collect sewage, the pH that regulates sewage is that the volume organic loading of 3.5-10.0, sewage is 8.0-12.0kgcod/ (m
3.d);
2. anaerobic acidification hydrolysis: the sewage after overregulating of learning from else's experience is sent into and is carried out the anaerobic acidification hydrolysis in the anaerobic acidification pond, and hydraulic detention time is 8-14 hour;
3. aerobic treatment: get the sewage behind the anaerobic acidification, the complex micro organism fungicide that will contain nitrite bacteria, thiobacillus, subtilis, Bacillus licheniformis, bacillus polymyxa, pseudomonas is inoculated into and carries out aerobic treatment in this sewage, and the hydraulic detention time of aerobic treatment was controlled at 10-16 hour;
4. flocculation sediment: adding aluminium chlorohydroxide through in the sewage of aerobic treatment;
5. zeolite adsorption: the treatment solution that will add aluminium chlorohydroxide is through zeolite adsorption.
2, livestock industry fecal sewage according to claim 1 is handled the qualified discharge technology, it is characterized in that: learn from else's experience and overregulate supernatant liquor after the pond is regulated and send into and carry out the anaerobic acidification hydrolysis treatment in the anaerobic acidification pond, the anaerobic acidification hydrolysis adopts useful volume to be about the synthetic glass reactor of 8.5L, the bottom water inlet, upper strata overflow port water outlet, hydraulic detention time are 10 hours, water outlet voltaile fatty acid＞1000mg/L, water outlet biological oxygen demand (BOD)/chemical oxygen demand reaches 0.53, hydrolysis efficiency 40%.
3, livestock industry fecal sewage according to claim 1 and 2 is handled the qualified discharge technology, it is characterized in that: the step of its aerobic treatment is: will send into a heavy pond through the sewage that anaerobic acidification is handled and carry out the precipitation first time, get supernatant liquor and send into aerobic jar, complex micro organism fungicide is inoculated into carries out aerobic treatment in the supernatant liquor.
4, livestock industry fecal sewage according to claim 3 is handled the qualified discharge technology, and it is characterized in that: described complex micro organism fungicide is the LMT treatment agent.
5, livestock industry fecal sewage according to claim 4 is handled the qualified discharge technology, it is characterized in that: will send into second pond through the sewage of LMT treatment agent aerobic treatment and carry out secondary sedimentation.
6, livestock industry fecal sewage according to claim 5 is handled the qualified discharge technology, it is characterized in that: in through the sedimentary supernatant liquor of second pond, add aluminium chlorohydroxide, carry out flocculation sediment, the dose that adds of aluminium chlorohydroxide is 0.03-0.5g/l, Ph value 5-9.
7, livestock industry fecal sewage according to claim 6 is handled the qualified discharge technology, it is characterized in that: in the zeolite adsorption step, the zeolite granular size is advisable with 0.2-1.2mm, ph is 4-10, static zeolite ammonia nitrogen saturated extent of adsorption is 28-30mg/g, dynamically saturated extent of adsorption is 20-22mg/g, and the zeolite addition is 8-15g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060847 CN1290776C (en) | 2004-09-10 | 2004-09-10 | Discharging technology for livestock feces sewage treatment to reach standard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410060847 CN1290776C (en) | 2004-09-10 | 2004-09-10 | Discharging technology for livestock feces sewage treatment to reach standard |
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| Publication Number | Publication Date |
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| CN1587111A true CN1587111A (en) | 2005-03-02 |
| CN1290776C CN1290776C (en) | 2006-12-20 |
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|---|---|---|---|
| CN 200410060847 Expired - Fee Related CN1290776C (en) | 2004-09-10 | 2004-09-10 | Discharging technology for livestock feces sewage treatment to reach standard |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300300C (en) * | 2005-07-20 | 2007-02-14 | 南开大学 | Composite fungus preparation for high-efficient flocculation processing of starch waste water and preparing process thereof |
| CN101148306B (en) * | 2007-08-24 | 2010-12-08 | 万若（北京）环境工程技术有限公司 | Method for treating and utilizing human fecaluria |
| CN102583893A (en) * | 2012-02-24 | 2012-07-18 | 浙江省农业科学院 | Method for adsorbing and removing microscale antibiotic in livestock and poultry waste water by modified zeolite |
| CN103466885A (en) * | 2013-09-12 | 2013-12-25 | 安徽省绿巨人环境技术有限公司 | Process for treating wastewater generated in solar silicon wafer production process |
-
2004
- 2004-09-10 CN CN 200410060847 patent/CN1290776C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1300300C (en) * | 2005-07-20 | 2007-02-14 | 南开大学 | Composite fungus preparation for high-efficient flocculation processing of starch waste water and preparing process thereof |
| CN101148306B (en) * | 2007-08-24 | 2010-12-08 | 万若（北京）环境工程技术有限公司 | Method for treating and utilizing human fecaluria |
| CN102583893A (en) * | 2012-02-24 | 2012-07-18 | 浙江省农业科学院 | Method for adsorbing and removing microscale antibiotic in livestock and poultry waste water by modified zeolite |
| CN103466885A (en) * | 2013-09-12 | 2013-12-25 | 安徽省绿巨人环境技术有限公司 | Process for treating wastewater generated in solar silicon wafer production process |
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| Publication number | Publication date |
|---|---|
| CN1290776C (en) | 2006-12-20 |
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Granted publication date: 20061220 Termination date: 20120910 |