CN102730914A - Method for processing livestock breeding wastewater by using anoxic membrane bioreactor - Google Patents
Method for processing livestock breeding wastewater by using anoxic membrane bioreactor Download PDFInfo
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- CN102730914A CN102730914A CN2012102401784A CN201210240178A CN102730914A CN 102730914 A CN102730914 A CN 102730914A CN 2012102401784 A CN2012102401784 A CN 2012102401784A CN 201210240178 A CN201210240178 A CN 201210240178A CN 102730914 A CN102730914 A CN 102730914A
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Abstract
The invention discloses a method for processing livestock breeding wastewater by using an anoxic membrane bioreactor. The method comprises the following steps: after preprocessing the livestock breeding wastewater, regulating the water quality and the water volume of the wastewater in a regulating tank, and then allowing the wastewater to enter the anoxic membrane bioreactor, wherein the concentration of active sludge in a reaction zone is 15,000-20,000mg/L, the middle lower part of the membrane zone is an aerobic zone, the dissolved oxygen is kept to be 2-5mg/L, the other zone of the membrane zone is anoxic or anaerobic environment, and the concentration of the dissolved oxygen is lower than 0.5mg/L; and enabling the wastewater in the reactor to continuously and alternately pass the aerobic zone, the anoxic zone and the anaerobic zone, continuously performing the biodegradation and transformation of pollutants, thereby realizing anaerobic ammoxidation denitrification in the same reactor. The whole reactor can achieve near zero emission of organic excess sludge, and the water quality of discharged water can reach the standard for recycling.
Description
Technical field
The present invention relates to a kind of treatment process of livestock breeding wastewater, especially relate to a kind of method of utilizing facultative aerobic membrane bioreactor to handle livestock breeding wastewater.
Background technology
The livestock breeding wastewater suspended substance is many, ammonia nitrogen concentration is high, organic concentration high, stink is big, but also contains the characteristics such as pathogenic agent that excrete with livestock and poultry, and intractability is difficult to qualified discharge greatly and after the traditional technology processing.
Breeding wastewater adopts biological treatments such as natural biology treatment technology, anaerobic treatment technology, aerobic treatment technology, combination treatment technology at present mostly.For single aerobic, the anaerobic treatment effect is unsatisfactory, at present plant's waste water generally adopts anaerobism+aerobic biochemical combination treatment technology.
Anaerobic treatment technology commonly used has: UASB, AF, UBF, USR, two phase anaerobic method;
Aerobic treatment technology commonly used has: active sludge, biological filter, catalytic oxidation, SBR, blodisc;
Advanced treatment technology commonly used: oxidation pond, artificial swamp, soil sanitation.
Fig. 1 is seen in tradition anaerobism+aerobic biochemical combination treatment technical process.
Tradition anaerobism+aerobic biochemical combination treatment technology is not enough: complex process, anaerobism natural pond slag be good utilisation not; Surplus sludge volume is many; The effluent quality difficulty is up to standard; Investment is big, and energy consumption is high; Level of automation is low, and operation is complicated.
Membrane bioreactor is the novel water technology that the high performance membrane stripping technique combines with active sludge; The tool potentiality of generally acknowledging as 21 century and the environmental improvement technology of competitive power, become at present in the desirable technique of water reuse field and high concentrated organic wastewater processing.Yet traditional aerobic membrane bioreactor technology is unsatisfactory to the ammonia nitrogen treatment effect, and energy consumption is high, is difficult to realize discharged wastewater met the national standard.
Summary of the invention
The purpose of this invention is to provide a kind of method of utilizing facultative aerobic membrane bioreactor to handle livestock breeding wastewater; It is not good to overcome existing routine biochemistry treatment process and general membrane biological reactor process treatment effect, and energy consumption is high, and the mud generation is big; Floor space is big, invests high defective.
Technical scheme of the present invention, a kind of method of utilizing facultative aerobic membrane bioreactor to handle livestock breeding wastewater comprises the following steps:
1. livestock breeding wastewater is earlier through aerobic or anaerobic technique pre-treatment;
2. get into equalizing tank through pretreated water outlet and regulate water quality and quantity;
3. water quality and quantity is regulated back sewage and is got into facultative aerobic membrane bioreactor.
In step 3, through optimizing the aerating system intensity distribution, middle and lower part, facultative aerobic membrane bioreactor film district is an aerobic zone particularly, and dissolved oxygen remains on 2-5mg/L; Zone beyond the middle and lower part, facultative aerobic membrane bioreactor film district is oxygen or the anaerobic environment of holding concurrently, and dissolved oxygen concentration is lower than 0.5mg/L.
In total system, form the aerobic-oxygen-anaerobic of the holding concurrently flow field form that alternately distributes; Waste water in the facultative aerobic membrane bioreactor can be continuously alternately through the aerobic-oxygen-anaerobic zone of holding concurrently; Constantly carry out the biological degradation and the conversion of pollutent, principal pollutant (organic loading, ammonia nitrogen and the SS) degraded that strengthened.
Particularly in step 3; Because the crown_interception of film; Form the active sludge of high density in the reaction zone, facultative aerobic membrane bioreactor system activity sludge concentration 15000-20000mg/L, the facultative aerobic membrane bioreactor hydraulic detention time is 8-10 hour; Mud is in low organic loading running status, and whole facultative aerobic membrane bioreactor can be realized organic excess sludge near zero release.
In step 3, it is main forming with amphimicrobe in the reactor drum particularly, and the aerobic bacterium phase morphology that coexists with amphimicrobe is realized the Anammox denitrogenation in same facultative aerobic membrane bioreactor.
The present invention is mainly with the main process of facultative aerobic membrane bioreactor as the processing breeding wastewater; Solve the problem that is difficult to qualified discharge after livestock breeding wastewater is handled, simplified technical process simultaneously, reduced construction investment and floor space; Improved treatment effect, maintenance of the equipment is simple; Effluent quality can reach " urban sewage reutilization city miscellaneous water water quality " (GB/T18920-2002) road-cleaning, fire-fighting, reuse of greening water water quality standard.
Description of drawings
Fig. 1 tradition anaerobism+aerobic biochemical combination treatment process flow sheet.
Fig. 2 process flow diagram of the present invention.
Fig. 3 facultative aerobic membrane bioreactor inside is aerobic-oxygen-anaerobic of the holding concurrently flow field aspect graph that alternately distributes.
Embodiment
Embodiment 1
Treatment scale: 100m
3/ d; Adopt treatment process of the present invention: " pre-treatment (A/O pond)+equalizing tank+facultative aerobic membrane bioreactor ".Livestock breeding wastewater is earlier after pre-treatment; Get into equalizing tank and regulate water quality and quantity; Water quality and quantity is regulated back sewage and is got into facultative aerobic membrane bioreactor, since the crown_interception of film, the interior active sludge that forms high density of reaction zone; Concentration is controlled at 15000-20000mg/L, and the reactor drum waterpower residence time is 10 hours.Through optimizing the aerating system intensity distribution, middle and lower part, film district is an aerobic zone in facultative aerobic membrane bioreactor, and dissolved oxygen remains on 2-5mg/L; Zone beyond the middle and lower part, film district is hold concurrently oxygen or anaerobic environment, and dissolved oxygen concentration is lower than 0.5mg/L, and it is main answering interior the formation with amphimicrobe of device, the aerobic bacterium phase morphology that coexists with amphimicrobe.Waste water in the reactor drum alternately through the aerobic-oxygen-anaerobic zone of holding concurrently, constantly carries out the biological degradation and the conversion of pollutent continuously, principal pollutant (organic loading, ammonia nitrogen and the SS) degraded that strengthened, realization Anammox denitrogenation in same reactor drum.Whole reactor can realize organic excess sludge near zero release, and effluent quality can reach " urban sewage reutilization city miscellaneous water water quality " (GB/T18920-2002) road-cleaning, fire-fighting, reuse of greening water water quality standard.
Table 1 is respectively controlled project discharge value and discharge index comparison sheet
Claims (4)
1. the method for a facultative aerobic membrane bioreactor processing livestock breeding wastewater is characterized in that comprising the following steps:
(1) livestock breeding wastewater is earlier through aerobic or anaerobic technique pre-treatment;
(2) get into equalizing tank through pretreated water outlet and regulate water quality and quantity;
(3) water quality and quantity is regulated back sewage and is got into facultative aerobic membrane bioreactor, water outlet.
2. method according to claim 1 is characterized in that: in the step (3), middle and lower part, facultative aerobic membrane bioreactor film district is an aerobic zone, and dissolved oxygen remains on 2-5mg/L; Zone beyond the middle and lower part, facultative aerobic membrane bioreactor film district is oxygen or the anaerobic environment of holding concurrently, and dissolved oxygen concentration is lower than 0.5mg/L.
3. method according to claim 1 is characterized in that: facultative aerobic membrane bioreactor system activity sludge concentration 15000-20000mg/L, the facultative aerobic membrane bioreactor hydraulic detention time is 8-10 hour.
4. method according to claim 1 is characterized in that: it is main forming with amphimicrobe in the facultative aerobic membrane bioreactor, the aerobic bacterium phase morphology that coexists with amphimicrobe.
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803706A (en) * | 2014-03-04 | 2014-05-21 | 重庆耐德机械设备有限公司 | Membrane bioreactor-based sewage treatment method |
| CN103864211A (en) * | 2014-02-26 | 2014-06-18 | 上海大学 | Method for processing food processing wastewater by adopting facultative membrane bioreactor and facultative membrane bioreactor |
| 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 |
| CN104528934A (en) * | 2014-12-04 | 2015-04-22 | 浙江清华长三角研究院 | Shortcut nitrification-denitrification membrane bioreactor and sewage treatment technology thereof |
| CN104829043A (en) * | 2015-04-20 | 2015-08-12 | 江西金达莱环保股份有限公司 | Method for treatment of foodstuff wastewater based on technology of facultative anaerobic membrane bioreactor |
| CN105036328A (en) * | 2015-04-20 | 2015-11-11 | 江西金达莱环保股份有限公司 | Village decentralized wastewater treatment method |
| WO2017035891A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system of wastewater treatment with zero discharge of sludge |
| WO2017035892A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system for wastewater treatment using membrane bioreactor |
| CN106554075A (en) * | 2015-09-24 | 2017-04-05 | 北京联合创业环保工程股份有限公司 | Micro- aerobic recirculating fluidized bed membrane bioreactor and system |
| CN108911135A (en) * | 2018-07-17 | 2018-11-30 | 厦门理工学院 | A kind of processing method of waste water of livestock poultry |
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| CN101885570A (en) * | 2009-05-15 | 2010-11-17 | 深圳市金达莱环保股份有限公司 | Sludge treatment method |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103864211A (en) * | 2014-02-26 | 2014-06-18 | 上海大学 | Method for processing food processing wastewater by adopting facultative membrane bioreactor and facultative membrane bioreactor |
| CN103803706B (en) * | 2014-03-04 | 2016-01-27 | 重庆耐德机械设备有限公司 | A kind of based on membrane bioreactor sewage water treatment method |
| CN103803706A (en) * | 2014-03-04 | 2014-05-21 | 重庆耐德机械设备有限公司 | Membrane bioreactor-based sewage treatment method |
| 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 |
| CN104528934A (en) * | 2014-12-04 | 2015-04-22 | 浙江清华长三角研究院 | Shortcut nitrification-denitrification membrane bioreactor and sewage treatment technology thereof |
| CN104528934B (en) * | 2014-12-04 | 2016-04-27 | 浙江清华长三角研究院 | Short-cut nitrification-denitrification denitrogenation membrane bioreactor and sewage treatment process thereof |
| CN105036328A (en) * | 2015-04-20 | 2015-11-11 | 江西金达莱环保股份有限公司 | Village decentralized wastewater treatment method |
| CN104829043A (en) * | 2015-04-20 | 2015-08-12 | 江西金达莱环保股份有限公司 | Method for treatment of foodstuff wastewater based on technology of facultative anaerobic membrane bioreactor |
| WO2017035891A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system of wastewater treatment with zero discharge of sludge |
| WO2017035892A1 (en) * | 2015-09-01 | 2017-03-09 | Jiangxi Jdl Environmental Protection Co., Ltd. | Method and system for wastewater treatment using membrane bioreactor |
| CN106554075A (en) * | 2015-09-24 | 2017-04-05 | 北京联合创业环保工程股份有限公司 | Micro- aerobic recirculating fluidized bed membrane bioreactor and system |
| CN108911135A (en) * | 2018-07-17 | 2018-11-30 | 厦门理工学院 | A kind of processing method of waste water of livestock poultry |
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| CN102730914B (en) | 2014-04-02 |
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Address after: 330100 Jiangxi city in Nanchang Province, the new County Changleng foreign investment industrial zone (District) No. 459 Industrial Avenue Applicant after: Jiangxi JDL Environmental Protection Ltd Address before: 330100 Jiangxi city in Nanchang Province, the new County Changleng foreign investment industrial zone (District) No. 459 Industrial Avenue Applicant before: Jiangxi JDL Environmental Protection Research Ltd. |
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