CN102701531B - Slaughter sewage treatment method - Google Patents
Slaughter sewage treatment method Download PDFInfo
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- CN102701531B CN102701531B CN201210205757.5A CN201210205757A CN102701531B CN 102701531 B CN102701531 B CN 102701531B CN 201210205757 A CN201210205757 A CN 201210205757A CN 102701531 B CN102701531 B CN 102701531B
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Abstract
The invention provides a slaughter sewage treatment method. After being subjected to slag removal, water quality regulation, primary aerobic treatment, and the sludge-water separation treatment by a primary sedimentation tank, sewage can be discharged into a municipal sewage pipeline through a sewage outlet and also can be further treated by a recycling treatment system to become reusable water. The treatment method adopts a grating, a rotating drum screen stencil, oil removal sedimentation and air floatation for pretreatment and can timely and effectively remove oil slick, floating solids and impurities, the effect is optimal, and the oil stain removing operation is enabled to be simpler; besides, the sewage is treated by a primary aerobic pond before being discharged into the municipal sewage pipeline, so as to ensure that the discharged water meets the requirements of discharge pipes, avoid the problems of substandard ammonia nitrogen of single anoxic interrupt treatment and high construction cost of an A/O method, and reduces the investment cost of a project; and finally, ammonia nitrogen removal is ensured during carbon removal, the whole treatment is mature and stable, has high degree of automation, and is simple to operate and convenient to manage.
Description
Technical field
The present invention relates to a kind of waste water control method, refer to that especially one butchers waste water control method.
Background technology
In the sewage of meat packing plant, contain a large amount of pollutents, this pollutent is mainly derived from blood stains, grease oil clot, pig hair, meat bits, internal organ foreign material, ight soil and other waste water of slaughtering, scalding the operation discharges such as hair, cleaning internal organ, stripping and slicing, cleaning of production line.Butcher process for processing and mainly concentrate in working hour of 3-5 hour, its sewage flow rate is large, and the malconformation of water quality and quantity discharge is stronger, and waste water control workload is large, the more labor force who needs; In addition, in sewage because of containing a large amount of oxyphorases, the pollutents such as grease, ammonia-nitrogen content is very high, only by removing CODcr or BOD
5(CODcr is the chemical oxygen demand that adopts potassium bichromate to determine as oxygenant; BOD
5for biochemical requirement, mainly represent the index of easy biochemical degradation in sewage.) calculated load, water outlet ammonia nitrogen will be not up to standard; In addition, owing to being discharged in municipal pipeline after most of sewage pre-treatment, only pre-treatment majority parameters can reach comb requirement, if only adopt anaerobism, ammonia nitrogen index cannot be up to standard, if adopt A/O (anoxic+aerobic) to process before comb, its construction costs and working cost will increase a lot.
Summary of the invention
The invention provides one and butcher waste water control method, to overcome, the waste water control level of automation existing in prior art is little, workload is large, and regulation effect is undesirable, treatment cost is crossed the problems such as high.
The present invention adopts following technical scheme:
One is butchered waste water control method, and this improvement method comprises the following steps:
A. slaughter workshop sewage and after mechanical grille is removed waste residue, enter pump well, then with pump, sewage lifting is further removed to waste residue to rotary drum screen cloth, then sewage self-flowing, to oil removal detritus pool, is removed most of sediment and oil slick;
B. sewage flows automatically to pre-exposure equalizing tank by oil removal detritus pool, through air blast pre-exposure regulating water quality;
C. water quality is promoted in air flotation pool with pump through the sewage regulating, and further removes oil slick and disintegrating slag;
D. the sewage self-flowing of processing through step c enters to be equipped with the one-level Aerobic Pond of active sludge, under the effect of aerobic microbiological, removes the carbon in organism;
E. the water section of processing through step c flow to one-level settling tank, processes through this settling tank the water separating and both can be disposed in urban sewage pipe through sewage draining exit, also can through recycling processing system further processing obtain water that can reuse.
Above-mentioned recycling processing system comprises anoxic pond, secondary Aerobic Pond, second-level settling pond, intermediate pool, fiber ball filter, sterilization pool and clean water basin; This recycling processing system comprises the following steps the processing of water:
A. flow to anoxic pond through the water of above-mentioned one-level settling tank processing, make organism ammonification;
B. the water that step a processes flow to secondary Aerobic Pond and makes organism in water be transformed into nitrate by the part of ammonification, is back to anoxic pond through the water of secondary Aerobic Pond processing, and the oxygen bacterium of holding concurrently is captured oxygen from nitrate, is that nitrogen returns to atmosphere thereby make nitrate transformation;
C. after the biochemical treatment of step b, water is flowed through in secondary Aerobic Pond arrival second-level settling pond by anoxic pond, realizes mud-water separation; In pond, supernatant liquor drains into intermediate pool;
D. the water in intermediate pool rises in fiber ball filter with pump, further except the SS in anhydrating;
E. filtered water drains into sterilization pool and carries out disinfection, and is stored in reuse in clean water basin through the water of sterilization.
More specifically, be disposed in above-mentioned pump well after workshop detritus pool is processed wait killing workshop sewage.
Above-mentioned mechanical grille, the isolated waste residue of rotary drum screen cloth institute reclaim and are for further processing.
Above-mentioned oil removal detritus pool and the air flotation pool isolated oil slick of institute and sediment are disposed to storage slag bath, transport outward and are for further processing through the de-dry-cure of water extracter, and this water extracter is horizontal screw centrifuge.
The treatment time of sewage in above-mentioned pre-exposure equalizing tank is 18～25 hours.
Above-mentioned air flotation pool is shallow air-floatation pond.
Above-mentioned one-level settling tank is rectangular sedimentation tank.
Above-mentioned second-level settling pond is vertical-flow tube settler.
Above-mentioned sterilization pool is deflector type sterilization pool, and the treatment time of sewage in this sterilization pool is 20～40 minutes.
From the above-mentioned description of this invention, compared to the prior art, tool of the present invention has the following advantages: adopt grid+rotary drum screen cloth+oil removal sediment+air supporting to carry out pre-treatment and can remove timely and effectively oil slick, scum silica frost and foreign material, its best results, also makes the operation of removing greasy dirt become simpler; In addition, sewage discharge adopts one-level Aerobic Pond to dispose of sewage to urban sewage pipe, effectively ensures that water outlet reaches comb requirement, has avoided only and A/O method construction costs high problem not up to standard with the disconnected processing of anoxic ammonia nitrogen, has saved the investment cost of engineering; In addition, recycling processing system part adopts A/O method, makes technique simpler, and aerobic time adds and grows to 12 hours, has reduced the load of BOD, has effectively improved processing efficiency, avoids sludge bulking; Finally, in de-carbon, ensure the removal of ammonia nitrogen, by outputted aerobic water is back to anoxic unit, completed nitrated-denitrification process, ensured to remove NH
4+ N; The ripe stable and reliable operation of whole improvement method, level of automation is high, can, according to the automatic conditioning equipment working order of biochemical parameter, save running cost, simple to operate, convenient management.
Brief description of the drawings
Fig. 1 is comb processing technological flow figure.
Fig. 2 is reuse water processing technological flow.
Embodiment
One is butchered waste water control method, and this improvement method comprises the following steps:
With reference to Fig. 1, a. slaughter workshop sewage 1a and remove the waste residue of the larger particles such as grease of the chitling, internal organ foreign material, pig hair, the clot solidifying and the part that contain through mechanical grille 2a from butcher the sewage that job shop flows out, enter subsequently pump well 3, also be disposed in this pump well 3 after workshop detritus pool 2b processes wait killing workshop sewage 1b, workshop detritus pool 2b is equipped with running type mud and slag scraping machine, scum silica frost lift pump and sediment lift pump, so that the processing of sediment; With diving lift pump, sewage is promoted in rotary drum screen cloth 4 and is further removed pig hair, little meat mincing and other foreign material thereof in decontaminated water by pump well 3 again, then sewage self-flowing, to oil removal detritus pool 5, is removed most of sediment and oil slick;
B. sewage flows automatically to pre-exposure equalizing tank 6 by oil removal detritus pool 5, sewage enters after equalizing tank, through air blast pre-exposure regulating water quality, prevent sediment precipitation and oil slick caking in sewage simultaneously, avoid long-term accumulated, affect the normal operation of equipment, simultaneously because the residence time in equalizing tank reaches 18～25 hours, be generally 20 hours, there is anaerobic reaction in sewage, be small molecules by sub-the major part in sewage scission of link in equalizing tank, and partial organic substances is degraded, greatly adjust the stability of sewage, be beneficial to follow-up processing of constructing;
C. water quality is promoted to pump in air flotation pool 7 through the sewage regulating, and this air flotation pool 7 is shallow air-floatation pond, further removes oil slick and disintegrating slag, is separated out scum silica frost, to avoid the impact of scum silica frost on follow-up biochemistry;
D. the sewage self-flowing of processing through step c enters to be equipped with the one-level Aerobic Pond 8 of active sludge, under the effect of aerobic microbiological, removes the carbon in organism;
E. the water section of processing through step c flow to one-level settling tank 9, and this one-level settling tank 9 is rectangular sedimentation tank; Process through this settling tank the water separating and both can be disposed in urban sewage pipe through sewage draining exit 10, also can through recycling processing system further process obtain can reuse water.
With reference to Fig. 2, above-mentioned recycling processing system comprises anoxic pond 13, secondary Aerobic Pond 14, second-level settling pond 15, intermediate pool 16, fiber ball filter 17, sterilization pool 18 and clean water basin 19; This recycling processing system comprises the following steps the processing of water:
A. the water of processing through above-mentioned one-level settling tank 9 flow to anoxic pond 13, makes organism ammonification;
B. the water that step a processes flow to secondary Aerobic Pond 14 and makes organism in water be transformed into nitrate by the part of ammonification, the water of processing through secondary Aerobic Pond 14 is back to anoxic pond 13, the treatment time of secondary Aerobic Pond 14 is 12 hours, the oxygen bacterium of holding concurrently is captured oxygen from nitrate, thereby making nitrate transformation is that nitrogen returns to atmosphere, reach the object of denitrogenation completely, realize denitrification denitrogenation processing, further after degraded part organic compound, certainly flow into secondary Aerobic Pond 14 simultaneously;
C. after the biochemical treatment of step b, water is arrived in second-level settling pond 15 by the anoxic pond 13 secondary Aerobic Pond 14 of flowing through, and realizes mud-water separation, and this second-level settling pond 15 is vertical-flow tube settler; In pond, supernatant liquor drains into intermediate pool 16, and mud concentrates on sludge thickener, and this sludge thickener adopts vertical-flow concentration basin, and after folded spiral shell machine press filtration, outward transport is processed;
D. the water in intermediate pool 16 rises in fiber ball filter 17 with pump, and further except the SS(SS in anhydrating is the english abbreviation of suspend solid, i.e. suspended solids, is an important indicator of water quality.), ensure that water outlet reaches miscellaneous water reuse requirement;
E. filtered water drains into sterilization pool 18, this sterilization pool 18 is deflector type sterilization pool, sewage adopts disinfection by chlorine dioxide 20～40 minutes in this sterilization pool 18, conventional disinfecting time is 30 minutes, dioxide peroxide is produced by chlorine dioxide generator preparation, is stored in reuse in clean water basin 19 through the water of sterilization.
Further, above-mentioned mechanical grille 2a, 4 isolated waste residues of rotary drum screen cloth reclaim and are for further processing.
7 isolated oil slick of above-mentioned oil removal detritus pool 5 and air flotation pool and sediment are disposed to storage slag bath 11, transport outward and are for further processing again through the de-dry-cure of water extracter 12, and this water extracter is horizontal screw centrifuge.
Above are only the specific embodiment of the present invention, but design concept of the present invention is not limited to this, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should belong to the behavior of invading protection domain of the present invention.
Claims (9)
1. butcher a waste water control method, it is characterized in that, this improvement method comprises the following steps:
A. slaughter workshop sewage and after mechanical grille is removed waste residue, enter pump well, then with pump, sewage lifting is further removed to waste residue to rotary drum screen cloth, then sewage self-flowing, to oil removal detritus pool, is removed most of sediment and oil slick;
B. sewage flows automatically to pre-exposure equalizing tank by oil removal detritus pool, and through air blast pre-exposure regulating water quality, the treatment time of sewage in this pre-exposure equalizing tank is 18～25 hours;
C. water quality is promoted in air flotation pool with pump through the sewage regulating, and further removes oil slick and disintegrating slag;
D. the sewage self-flowing of processing through step c enters to be equipped with the one-level Aerobic Pond of active sludge, under the effect of aerobic microbiological, removes the carbon in organism;
E. the water section of processing through step c flow to one-level settling tank, processes through this settling tank the water separating and both can be disposed in urban sewage pipe through sewage draining exit, also can through recycling processing system further processing obtain water that can reuse.
2. one as claimed in claim 1 is butchered waste water control method, it is characterized in that: described recycling processing system comprises anoxic pond, secondary Aerobic Pond, second-level settling pond, intermediate pool, fiber ball filter, sterilization pool and clean water basin; This recycling processing system comprises the following steps the processing of water:
A. flow to anoxic pond through the water of described one-level settling tank processing, make organism ammonification;
B. the water that step a processes flow to secondary Aerobic Pond and makes organism in water be transformed into nitrate by the part of ammonification, is back to anoxic pond through the water of secondary Aerobic Pond processing, and the oxygen bacterium of holding concurrently is captured oxygen from nitrate, is that nitrogen returns to atmosphere thereby make nitrate transformation;
C. after the biochemical treatment of step b, water is flowed through in secondary Aerobic Pond arrival second-level settling pond by anoxic pond, realizes mud-water separation; In pond, supernatant liquor drains into intermediate pool;
D. the water in intermediate pool rises in fiber ball filter with pump, further except the SS in anhydrating;
E. filtered water drains into sterilization pool and carries out disinfection, and is stored in reuse in clean water basin through the water of sterilization.
3. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: be disposed in described pump well after workshop detritus pool is processed wait killing workshop sewage.
4. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: described mechanical grille, the isolated waste residue of rotary drum screen cloth institute reclaim and be for further processing.
5. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: described oil removal detritus pool and the air flotation pool isolated oil slick of institute and sediment are disposed to storage slag bath, transport outward and be for further processing again through the de-dry-cure of water extracter, this water extracter is horizontal screw centrifuge.
6. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: described air flotation pool is shallow air-floatation pond.
7. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: described one-level settling tank is rectangular sedimentation tank.
8. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: described second-level settling pond is vertical-flow tube settler.
9. one as claimed in claim 2 is butchered waste water control method, it is characterized in that: described sterilization pool is deflector type sterilization pool, and the treatment time of sewage in this sterilization pool is 20～40 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210205757.5A CN102701531B (en) | 2012-06-21 | 2012-06-21 | Slaughter sewage treatment method |
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| CN201210205757.5A CN102701531B (en) | 2012-06-21 | 2012-06-21 | Slaughter sewage treatment method |
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| CN102701531A CN102701531A (en) | 2012-10-03 |
| CN102701531B true CN102701531B (en) | 2014-06-04 |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992548B (en) * | 2012-12-06 | 2013-12-18 | 山东名科环保工程有限公司 | Method for treating low-temperature slaughter wastewater |
| CN103553265B (en) * | 2013-10-11 | 2015-02-04 | 沈阳建筑大学 | Module processing method for distributed slaughter wastewater |
| CN104961292B (en) * | 2015-06-04 | 2017-01-18 | 沈阳建筑大学 | Modularized integrated system and method applicable to treatment of low-temperature livestock and poultry slaughtering waste water in north |
| CN106116031A (en) * | 2016-07-28 | 2016-11-16 | 云南珠源环保工程有限公司 | A kind of efficient treatment process of slaughtering wastewater |
| CN107140767A (en) * | 2017-07-11 | 2017-09-08 | 苏州希瑞特环保科技有限公司 | Slaughterhouse sewage-treatment plant |
| CN110697921A (en) * | 2019-10-28 | 2020-01-17 | 深圳德蓝生态环境有限公司 | Slaughter wastewater grease treatment integrated process |
| CN111847771A (en) * | 2020-07-06 | 2020-10-30 | 浙江省环境工程有限公司 | Slaughter wastewater treatment method and system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102206023A (en) * | 2011-05-06 | 2011-10-05 | 北京剑平瑞华环保技术有限公司 | Double-reflux sewage biochemical treatment system and method for sewage and sludge |
| CN202072578U (en) * | 2010-12-08 | 2011-12-14 | 余弟和 | Dual-system slaughter waste water treatment system |
| CN202107597U (en) * | 2011-05-27 | 2012-01-11 | 大连康源食品有限公司 | Novel sewage treatment system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100845195B1 (en) * | 2007-06-13 | 2008-07-10 | 한국과학기술원 | Treating method of slaughterhouse wastewater using sequencing batch bioreactor |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202072578U (en) * | 2010-12-08 | 2011-12-14 | 余弟和 | Dual-system slaughter waste water treatment system |
| CN102206023A (en) * | 2011-05-06 | 2011-10-05 | 北京剑平瑞华环保技术有限公司 | Double-reflux sewage biochemical treatment system and method for sewage and sludge |
| CN202107597U (en) * | 2011-05-27 | 2012-01-11 | 大连康源食品有限公司 | Novel sewage treatment system |
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Effective date of registration: 20180118 Address after: No. 4 group 35, Mau village, Zhun drum Township, Qianwei County, Sichuan Province Patentee after: Tang Hongjun Address before: 362700 Shishi science and Technology Park, Fujian, Shandong Province, the science and Technology Park on both sides of the Strait of science and technology incubator base, floor four, building Patentee before: Fujian Guanghuilong Environmental Technology Co., Ltd. |
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Effective date of registration: 20180504 Address after: 362000 1 innovation and entrepreneurship center, 7 Xin Qiang Road, hi tech Zone, Shishi, Quanzhou, Fujian. Patentee after: Fujian Guanghuilong Environmental Technology Co., Ltd. Address before: 614405 group 4, Ma Liu village, Zha Gu township, Qianwei County, Sichuan province 35 Patentee before: Tang Hongjun |
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