CN102964027A - Culture wastewater treatment method - Google Patents
Culture wastewater treatment method Download PDFInfo
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- CN102964027A CN102964027A CN2012104543629A CN201210454362A CN102964027A CN 102964027 A CN102964027 A CN 102964027A CN 2012104543629 A CN2012104543629 A CN 2012104543629A CN 201210454362 A CN201210454362 A CN 201210454362A CN 102964027 A CN102964027 A CN 102964027A
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- down water
- wastewater treatment
- breeding wastewater
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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
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- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The invention discloses a culture wastewater treatment method which comprises the following steps: A. separating wastewater into rinsing water and waste liquor, and respectively collecting the rinsing water and waste liquor; B. treating the collected rinsing water to achieve the culture wastewater discharge standard; C. concentrating the separated waste liquor in the step A to obtain a concentrated solution and a clear solution; D. recycling the concentrated clear solution, and fermenting the concentrated solution; and E. using the fermented concentrated solution as a liquid fertilizer. The culture wastewater is classified to separate the waste liquor containing high-concentration NH3-N and the high-COD (chemical oxygen demand) rinsing water. After the separation, the high-NH3-N waste liquor and the high-COD rinsing water are respectively treated, thereby avoiding the mutual influence between the NH3-N and COD. The treated waste liquor is used as the liquid fertilizer, thereby providing high-quality fertilizer resources for agriculture. The treated rinsing water is superior to the culture wastewater discharge standard, thereby implementing discharge of culture wastewater after reaching the standard or recycling of reclaimed water, and being energy-saving and environment-friendly. The invention is used in the field of wastewater treatment.
Description
Technical field
The present invention relates to a kind for the treatment of process of waste water, particularly relate to a kind for the treatment of process of breeding wastewater.
Background technology
Effective improvement of Stock raising waste has become one of Three Difficult Issues of puzzlement world environments worker.With regard to its quantity discharged, the quantity discharged of its organism take COD as equivalent is industry and urban life waste discharge amount 2 times.More bad is, industry and urban life waste are effectively administered, and the improvement of China's breeding waste also rest on do not process or simply dealt situation under.
Why aquaculture sewage is difficult to process, and its major cause is mainly to contain the ight soil urine in the sewage, wherein organism (COD), ammonia nitrogen (NH
3-N) and the concentration of total phosphorus (TP) high, be the tens of even hundreds of times of most of industrial sewage and sanitary sewage, its intractability and processing cost are well imagined.
The treatment process commonly used of breeding wastewater is anaerobism (biogas) technique+anoxic+aerobic+chemical dephosphorization+oxidation pond at present.Common process uses the organic carbon in the sewage for the COD that effectively degrades, and has strengthened anaerobic treatment at leading portion, because anaerobic technique is hydrolysis, acidifying, methanogenic process.Enough when the anaerobic technique residence time, design is enough reasonable, and a large amount of organic carbons can constantly resolve into CH
4, C
2H
6Deng air release out, so that the range of decrease of COD be greatly improved.Do like this so that a large amount of organic carbons can absorb as biogas energy, the difficulty of simultaneously subsequent technique degraded COD significantly reduces.
But the simultaneous aminating reaction of anaerobic process, so that the NH in the sewage
3-N has increased 20-30%, NH when entering subsequent handling
3The treating processes of-N is finished by ammonification (anaerobism) → nitrated (aerobic) → denitrification (anoxic).By this three-step reaction it is fully decomposed, simultaneously NH
3The removal of-N must have corresponding carbon source as the prerequisite of anti-nitration reaction.C:N is than could effectively carry out denitrification more than 4:1 generally speaking.By the technological design of present breeding wastewater main flow, the water outlet C:N ratio after sewage is processed through anaerobic and aerobic is almost 1:1, realize the C:N ratio that 4:1 is above, needs 400% quantity of reflux.Reflux ratio rises greatly, although to NH
3The treatment effect of-N has ensured, but the biochemical section of system is subject to the impact of impact load more than 4 times, and the effect of each technique unit just can't effectively be controlled, and thus, the design of technological process processing parameter control difficulty strengthens greatly.
Summary of the invention
For addressing the above problem, the invention provides a kind of effective solution and remove COD and NH in the waste water
3The breeding wastewater treatment process of-N contradiction.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of breeding wastewater treatment process may further comprise the steps:
A. be wash-down water and waste liquid with effluent segregation, and collect respectively;
B. the wash-down water of collecting is processed, made it to reach the breeding wastewater emission standard;
C. the waste liquid that distributes in the steps A is carried out concentration, and obtain dope and clear liquid;
D. will concentrate the clear liquid recycling that obtains, the concentrated dope that obtains will be carried out fermentative processing;
E. the dope after the fermentative processing is made the liquid biological organic fertilizer.
Be further used as the improvement of technical solution of the present invention, adopt the shunting of 3-way valve control waste water in the steps A, waste liquid is not collected in 3-way valve control when not washing the cultivation place, and wash-down water is collected in 3-way valve control during the water flushing.
Be further used as the improvement of technical solution of the present invention, among the step B, wash-down water passes through the processing of baffling type anaerobic reactor and BAF successively, removes the pollutent in the wash-down water, finishes the carbon elimination of wash-down water, nitrated, denitrogenation, dephosphorization and processes.
Be further used as the improvement of technical solution of the present invention, in dope, add organic high phosphorus, high potassium material, middle trace element and microbial preparation during fermentative processing among the step D.
Beneficial effect of the present invention: this breeding wastewater treatment process is at first classified to breeding wastewater, will contain high density NH
3The waste liquid of-N and the shunting of the wash-down water of high COD.After the shunting, process respectively higher NH
3The waste liquid of-N and the wash-down water of high COD have been avoided combination treatment NH
3The interactional contradiction of-N and COD, the waste liquid after processing is simultaneously made liquid fertilizer, and for agricultural provides the manure resources of high-quality, wash-down water is better than the breeding wastewater emission standard after treatment, realizes qualified discharge or the middle water reuse of breeding wastewater, not only energy-conservation but also environmental protection.
Description of drawings
The invention will be further described below in conjunction with accompanying drawing:
Fig. 1 is embodiment of the invention schematic flow sheet.
Embodiment
With reference to Fig. 1, of the present invention a kind of breeding wastewater treatment process disclosed, may further comprise the steps:
A. be wash-down water and waste liquid with effluent segregation, and collect respectively;
B. the wash-down water of collecting is processed, made it to reach the breeding wastewater emission standard;
C. the waste liquid that distributes in the steps A is carried out concentration, and obtain dope and clear liquid;
D. will concentrate the clear liquid recycling that obtains, the concentrated dope that obtains will be carried out fermentative processing;
E. the dope after the fermentative processing is made the liquid biological organic fertilizer.
The breeding wastewater main component is animal excrements and feed, and this breeding wastewater treatment process is at first classified to breeding wastewater, will contain high density NH
3The waste liquid of-N and the shunting of the wash-down water of high COD.After the shunting, process respectively higher NH
3The waste liquid of-N and the wash-down water of high COD have been avoided combination treatment NH
3The interactional contradiction of-N and COD, the waste liquid after processing is simultaneously made liquid fertilizer, and for agricultural provides the manure resources of high-quality, wash-down water is better than the breeding wastewater emission standard after treatment, realizes qualified discharge or the middle water reuse of breeding wastewater, not only energy-conservation but also environmental protection.
As the preferred embodiment of the present invention, adopt the shunting of 3-way valve control waste water in the steps A, waste liquid is not collected in 3-way valve control when not washing the cultivation place, and wash-down water is collected in 3-way valve control during the water flushing.
For the cleaning of cultivation waste liquid, 3-way valve control waste liquid does not import the waste collection pond when not washing the cultivation place, and 3-way valve control wash-down water imports the wash-down water collecting tank during flushing cleaning, finishes high NH
3The shunting of the waste liquid of-N and the wash-down water of high COD.
As the preferred embodiment of the present invention, among the step B, wash-down water passes through the processing of baffling type anaerobic reactor and BAF successively, removes the pollutent in the wash-down water, finishes the carbon elimination of wash-down water, nitrated, denitrogenation, dephosphorization and processes.
In the baffling type anaerobic reactor, realize hydrolysis, acidifying, the methanogenic process of wash-down water.Enough when the anaerobic technique residence time, a large amount of organic carbons can constantly resolve into CH
4, C
2H
6Deng air release out, so that the range of decrease of COD is greatly improved, so that a large amount of organic carbons can absorb as biogas energy, the difficulty of simultaneously subsequent technique degraded COD significantly reduces, anaerobic reactor is in the methanogenic process of acidication, for the aminating reaction of while output provides the nitrification and denitrification condition, so that NH in the reactor water outlet
3-N obviously descends, and further removes by BAF to comprise SS, COD, BOD, NH
3-N, TP finish the carbon elimination of wash-down water, nitrated, denitrogenation, dephosphorization and process.
As the preferred embodiment of the present invention, in dope, add organic high phosphorus, high potassium material, middle trace element and microbial preparation during fermentative processing among the step D.
Fermentative processing mainly is for NH in the dope
3The processing of-N, NH
3The treating processes of-N is finished by ammonification (anaerobism) → nitrated (aerobic) → denitrification (anoxic), in dope, add organic high phosphorus, high potassium material, middle trace element and microbial preparation during processing, guarantee that fermentation carries out smoothly, and obtain the liquid biological fertilizer of high-quality, high quality, the biological insect protected of tool, diseases prevention.
Certainly, the invention is not limited to above-mentioned embodiment, those of ordinary skill in the art also can make equivalent variations or replacement under the prerequisite of spirit of the present invention, the modification that these are equal to or replacement all are included in the application's claim limited range.
Claims (4)
1. a breeding wastewater treatment process is characterized in that, may further comprise the steps:
A. be wash-down water and waste liquid with effluent segregation, and collect respectively;
B. the wash-down water of collecting is processed, made it to reach the breeding wastewater emission standard;
C. the waste liquid that distributes in the steps A is carried out concentration, and obtain dope and clear liquid;
D. will concentrate the clear liquid recycling that obtains, the concentrated dope that obtains will be carried out fermentative processing;
E. the dope after the fermentative processing is made the liquid biological organic fertilizer.
2. a kind of breeding wastewater treatment process according to claim 1 is characterized in that: adopt the shunting of 3-way valve control waste water in the described steps A, do not wash 3-way valve control collection waste liquid when cultivating the place, 3-way valve control collection wash-down water during the water flushing.
3. a kind of breeding wastewater treatment process according to claim 1, it is characterized in that: among the described step B, wash-down water passes through the processing of baffling type anaerobic reactor and BAF successively, removes the pollutent in the wash-down water, finishes the carbon elimination of wash-down water, nitrated, denitrogenation, dephosphorization and processes.
4. a kind of breeding wastewater treatment process according to claim 1 is characterized in that: add organic high phosphorus, high potassium material, middle trace element and microbial preparation during fermentative processing among the described step D in dope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210454362.9A CN102964027B (en) | 2012-11-13 | 2012-11-13 | Culture wastewater treatment method |
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| CN201210454362.9A CN102964027B (en) | 2012-11-13 | 2012-11-13 | Culture wastewater treatment method |
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| CN102964027A true CN102964027A (en) | 2013-03-13 |
| CN102964027B CN102964027B (en) | 2014-10-29 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172244A (en) * | 2013-03-26 | 2013-06-26 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
| CN103601346A (en) * | 2013-12-04 | 2014-02-26 | 苏理黔 | Method for producing liquid active ecological organic raw material by adopting breeding wastewater |
| CN108976060A (en) * | 2018-10-10 | 2018-12-11 | 徽县绿源科技开发有限责任公司 | A kind of water soluble fertilizer processed using Wastewater from Pig Farm |
| CN109133516A (en) * | 2018-09-18 | 2019-01-04 | 广西大学 | A kind of breeding wastewater resource utilization utilizes method |
| CN109455888A (en) * | 2019-01-02 | 2019-03-12 | 云南正辰环境科技有限公司 | A kind of processing method of livestock breeding wastewater |
| CN109619017A (en) * | 2018-12-29 | 2019-04-16 | 广州创领水产科技有限公司 | A kind of environment-friendly type industrial circulating water cultivating technology and system |
| CN112897707A (en) * | 2021-01-15 | 2021-06-04 | 四川渔光物联技术有限公司 | Tail water treatment device |
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| JP2006348191A (en) * | 2005-06-16 | 2006-12-28 | Chugoku Electric Power Co Inc:The | System for circulating biomass |
| CN101020593A (en) * | 2006-04-06 | 2007-08-22 | 上海百峰环保工程有限公司 | Process of treating sewage with animal's excrement |
| CN201777956U (en) * | 2010-04-14 | 2011-03-30 | 南昌大学 | Sequencing batch biofilm reactor processing system for piggery wastewater |
| CN102642985A (en) * | 2012-04-23 | 2012-08-22 | 南京师范大学 | Method and system for treatment and recycling of feces and waste from livestock and poultry culture |
| CN102718355A (en) * | 2012-05-21 | 2012-10-10 | 杨欣 | Breeding pollution discharge treatment system and treatment method thereof |
-
2012
- 2012-11-13 CN CN201210454362.9A patent/CN102964027B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2006348191A (en) * | 2005-06-16 | 2006-12-28 | Chugoku Electric Power Co Inc:The | System for circulating biomass |
| CN101020593A (en) * | 2006-04-06 | 2007-08-22 | 上海百峰环保工程有限公司 | Process of treating sewage with animal's excrement |
| CN201777956U (en) * | 2010-04-14 | 2011-03-30 | 南昌大学 | Sequencing batch biofilm reactor processing system for piggery wastewater |
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| CN102718355A (en) * | 2012-05-21 | 2012-10-10 | 杨欣 | Breeding pollution discharge treatment system and treatment method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103172244A (en) * | 2013-03-26 | 2013-06-26 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
| CN103172244B (en) * | 2013-03-26 | 2014-12-31 | 广州培根裕农生物科技有限公司 | Recycling treatment method of water-submerged manure in breeding industry |
| CN103601346A (en) * | 2013-12-04 | 2014-02-26 | 苏理黔 | Method for producing liquid active ecological organic raw material by adopting breeding wastewater |
| CN109133516A (en) * | 2018-09-18 | 2019-01-04 | 广西大学 | A kind of breeding wastewater resource utilization utilizes method |
| CN108976060A (en) * | 2018-10-10 | 2018-12-11 | 徽县绿源科技开发有限责任公司 | A kind of water soluble fertilizer processed using Wastewater from Pig Farm |
| CN109619017A (en) * | 2018-12-29 | 2019-04-16 | 广州创领水产科技有限公司 | A kind of environment-friendly type industrial circulating water cultivating technology and system |
| CN109455888A (en) * | 2019-01-02 | 2019-03-12 | 云南正辰环境科技有限公司 | A kind of processing method of livestock breeding wastewater |
| CN112897707A (en) * | 2021-01-15 | 2021-06-04 | 四川渔光物联技术有限公司 | Tail water treatment device |
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| CN102964027B (en) | 2014-10-29 |
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