CN102701531A - Slaughter sewage treatment method - Google Patents
Slaughter sewage treatment method Download PDFInfo
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- CN102701531A CN102701531A CN2012102057575A CN201210205757A CN102701531A CN 102701531 A CN102701531 A CN 102701531A CN 2012102057575 A CN2012102057575 A CN 2012102057575A CN 201210205757 A CN201210205757 A CN 201210205757A CN 102701531 A CN102701531 A CN 102701531A
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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, be meant a kind of waste water control method of butchering especially.
Background technology
Contain a large amount of pollutents in the sewage of meat packing plant, 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 operations 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 big, and the malconformation of water quality and quantity discharging is stronger, and the waste water control workload is big, the more labor force who needs; In addition, because of containing a large amount of oxyphorases, pollutents such as grease, ammonia-nitrogen content are very high in the sewage, only by removing CODcr or BOD
5(the chemical oxygen demand of CODcr for adopting SRM 935a to determine as oxygenant; BOD
5Be biochemical requirement, mainly represent the index of easy biochemical degradation in the sewage.) calculated load, the water outlet ammonia nitrogen will be not up to standard; In addition, owing to be discharged in the municipal pipeline after most of sewage pre-treatment, only pre-treatment majority parameters can reach the comb requirement; If only adopt anaerobism; The ammonia nitrogen index can't be up to standard, if adopt A/O (anoxic+aerobic) to handle before the comb, its construction costs and working cost will increase a lot.
Summary of the invention
The present invention provides a kind of waste water control method of butchering, and the waste water control level of automation that exists in the prior art is little, workload is big to overcome, and regulation effect is undesirable, treatment cost is crossed problems such as height.
The present invention adopts following technical scheme:
A kind of waste water control method of butchering, this improvement method may further comprise the steps:
A. slaughter and get into pump well after workshop sewage is removed waste residue through mechanical grille, with pump sewage is promoted to and further removes waste residue in the rotary drum screen cloth, sewage flows automatically to the oil removal detritus pool then, removes most of sediment and oil slick;
B. sewage flows automatically to the pre-exposure equalizing tank by the oil removal detritus pool, regulates water quality through the air blast pre-exposure;
C. water quality is promoted in the air flotation pool with pump through the sewage of regulating, and further removes oil slick and disintegrating slag;
D. the sewage of handling through step c flows into the one-level Aerobic Pond that is equipped with active sludge certainly, under the effect of aerobic microbiological, removes the carbon in the organism;
E. the water section of handling through step c flow to the one-level settling tank, handles isolating water through this settling tank and both can be disposed in the urban sewage pipe through sewage draining exit, but also can further handle the water that obtains reuse through recycling processing system.
Above-mentioned recycling processing system comprises anoxic pond, secondary aerobic pond, second-level settling pond, middle pond, fiber ball filter, sterilization pool and clean water basin; This recycling processing system may further comprise the steps the processing of water:
A. the water of handling through above-mentioned one-level settling tank flow to anoxic pond, makes the organism ammonification;
B. the water handled of step a flow to the secondary aerobic pond and makes that organism is transformed into nitrate salt by the part of ammonification in the water, and the water of handling through the secondary aerobic pond is back to anoxic pond, and the oxygen bacterium of holding concurrently is captured oxygen from nitrate salt, return atmosphere thereby make nitrate salt be converted into nitrogen;
C. after the biochemical treatment of step b, water is arrived in the second-level settling pond by the anoxic pond secondary aerobic pond of flowing through, and realizes mud-water separation; Pond in the middle of supernatant drains in the pond;
D. the water in the middle of in the pond rises in the fiber ball filter with pump, further removes the SS in anhydrating;
E. drain into sterilization pool through filtering water and carry out disinfection, be stored in reuse in the clean water basin through disinfectant water.
More particularly, waiting to kill workshop sewage is disposed in the above-mentioned pump well after the workshop detritus pool is handled.
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 air flotation pool isolated oil slick of institute and sediment are disposed to the storage slag bath, take off dry-cure through water extracter and transport outward and be for further processing, and this water extracter is a 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 the shallow air-floatation pond.
Above-mentioned one-level settling tank is a rectangular sedimentation tank.
Above-mentioned second-level settling pond is vertical-flow tube settler.
Above-mentioned sterilization pool is the deflector type sterilization pool, and the treatment time of sewage in this sterilization pool is 20～40 minutes.
Can know by the above-mentioned description of this invention; Compare with prior art; The present invention has following advantage: adopt grid+rotary drum screen cloth+oil removal sediment+air supporting to carry out pre-treatment and can remove oil slick, scum silica frost and foreign material timely and effectively, its best results makes that also removing the smeary operation becomes simpler; In addition, adopt the one-level Aerobic Pond to dispose of sewage before sewage discharge to the urban sewage pipe, guarantee that effectively water outlet reaches the comb requirement, having avoided only breaks with anoxic handles the not up to standard and high problem of A/O method construction costs of ammonia nitrogen, has practiced thrift the investment cost of engineering; In addition, recycling processing system partly adopts the A/O method, makes technology simpler, and the aerobic time adds grows to 12 hours, has reduced the load of BOD, has improved processing efficiency effectively, avoids sludge bulking; At last, in de-carbon, guaranteed the removal of ammonia nitrogen,, accomplished nitrated-denitrification process, guaranteed to remove NH through outputted aerobic water is back to anoxic unit
4+ N; The ripe stable and reliable operation of whole improvement method, level of automation is high, can practice thrift running cost according to the automatic conditioning equipment working order of biochemical parameter, and is simple to operate, convenient management.
Description of drawings
Fig. 1 is comb processing technological flow figure.
Fig. 2 is the reuse water processing technological flow.
Embodiment
A kind of waste water control method of butchering, this improvement method may further comprise the steps:
With reference to Fig. 1; A. slaughter workshop sewage 1a and pass through the waste residue that mechanical grille 2a removes the larger particles such as grease of the chitling, internal organ foreign material, pig hair, the clot that solidifies and the part that from butcher the effusive sewage of job shop, contain; Get into pump well 3 subsequently; Wait to kill workshop sewage 1b and after workshop detritus pool 2b handles, also be disposed in this pump well 3, 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 the diving lift pump sewage is promoted to pig hair, little meat mincing and other foreign material thereof that further remove in the rotary drum screen cloth 4 in the decontaminated water by pump well 3 again, sewage flows automatically to oil removal detritus pool 5 then, removes most of sediment and oil slick;
B. sewage flows automatically to pre-exposure equalizing tank 6 by oil removal detritus pool 5, after sewage gets into equalizing tank, regulates water quality through the air blast pre-exposure; Prevent sediment deposition and oil slick caking in the sewage simultaneously, avoid long-term accumulated, influence the normal operation of equipment; Because the residence time in equalizing tank reaches 18～25 hours, be generally 20 hours simultaneously, anaerobic reaction takes place in sewage in equalizing tank; With the most of sub-scission of link in the sewage is small molecules; Partial organic substances obtains degraded, has adjusted the stability of sewage greatly, is beneficial to follow-up processing of constructing;
C. water quality is promoted to pump in the air flotation pool 7 through the sewage of regulating, and this air flotation pool 7 is the shallow air-floatation pond, further removes oil slick and disintegrating slag, is separated out scum silica frost, to avoid the influence of scum silica frost to follow-up biochemistry;
D. the sewage of handling through step c flows into the one-level Aerobic Pond 8 that is equipped with active sludge certainly, under the effect of aerobic microbiological, removes the carbon in the organism;
E. the water section of handling through step c flow to one-level settling tank 9, and this one-level settling tank 9 is a rectangular sedimentation tank; Handle isolating water through this settling tank and both can be disposed in the urban sewage pipe, but also can further handle the water that obtains reuse through recycling processing system through sewage draining exit 10.
With reference to Fig. 2, above-mentioned recycling processing system comprises anoxic pond 13, secondary aerobic pond 14, second-level settling pond 15, middle pond 16, fiber ball filter 17, sterilization pool 18 and clean water basin 19; This recycling processing system may further comprise the steps the processing of water:
A. the water of handling through above-mentioned one-level settling tank 9 flow to anoxic pond 13, makes the organism ammonification;
B. the water handled of step a flow to secondary aerobic pond 14 and makes that organism is transformed into nitrate salt by the part of ammonification in the water; The water of 14 processing is back to anoxic pond 13 through the secondary aerobic pond, and the treatment time in secondary aerobic pond 14 is 12 hours, and the oxygen bacterium of holding concurrently is captured oxygen from nitrate salt; Thereby make nitrate salt be converted into nitrogen and return atmosphere; Reach the purpose of denitrogenation fully, the realization denitrification denitrogenation is handled, and further flows into secondary aerobic pond 14 certainly behind the degraded part organic cpds simultaneously;
C. after the biochemical treatment of step b, water is arrived in the second-level settling ponds 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; Pond 16 in the middle of supernatant drains in the pond, mud concentrates on sludge thickener, and this sludge thickener adopts vertical-flow concentration basin, and outward transport is handled after folded spiral shell machine press filtration;
D. the water in the middle of in the pond 16 rises in the fiber ball filter 17 with pump, and further (SS is the english abbreviation of suspend solid, and promptly suspended solids is an important indicator of water quality except that the SS in anhydrating.), guarantee that water outlet reaches miscellaneous water reuse requirement;
E. drain into sterilization pool 18 through filtering water; This sterilization pool 18 is the deflector type sterilization pool; Sewage adopted disinfection by chlorine dioxide 20～40 minutes in this sterilization pool 18; Disinfecting time commonly used is 30 minutes, and dioxide peroxide is produced by the chlorine dioxide generator preparation, is stored in reuse in the clean water basin 19 through disinfectant water.
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, take off dry-cure through water extracter 12 and transport outward and be for further processing, and this water extracter is a horizontal screw centrifuge.
Above-mentionedly be merely embodiment of the present invention, but design concept of the present invention is not limited thereto, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should belong to the behavior of invading protection domain of the present invention.
Claims (10)
1. butcher the waste water control method for one kind, it is characterized in that, this improvement method may further comprise the steps:
A. slaughter and get into pump well after workshop sewage is removed waste residue through mechanical grille, with pump sewage is promoted to and further removes waste residue in the rotary drum screen cloth, sewage flows automatically to the oil removal detritus pool then, removes most of sediment and oil slick;
B. sewage flows automatically to the pre-exposure equalizing tank by the oil removal detritus pool, regulates water quality through the air blast pre-exposure;
C. water quality is promoted in the air flotation pool with pump through the sewage of regulating, and further removes oil slick and disintegrating slag;
D. the sewage of handling through step c flows into the one-level Aerobic Pond that is equipped with active sludge certainly, under the effect of aerobic microbiological, removes the carbon in the organism;
E. the water section of handling through step c flow to the one-level settling tank, handles isolating water through this settling tank and both can be disposed in the urban sewage pipe through sewage draining exit, but also can further handle the water that obtains reuse through recycling processing system.
2. a kind of waste water control method of butchering as claimed in claim 1, it is characterized in that: said recycling processing system comprises anoxic pond, secondary aerobic pond, second-level settling pond, middle pond, fiber ball filter, sterilization pool and clean water basin; This recycling processing system may further comprise the steps the processing of water:
A. the water of handling through said one-level settling tank flow to anoxic pond, makes the organism ammonification;
B. the water handled of step a flow to the secondary aerobic pond and makes that organism is transformed into nitrate salt by the part of ammonification in the water, and the water of handling through the secondary aerobic pond is back to anoxic pond, and the oxygen bacterium of holding concurrently is captured oxygen from nitrate salt, return atmosphere thereby make nitrate salt be converted into nitrogen;
C. after the biochemical treatment of step b, water is arrived in the second-level settling pond by the anoxic pond secondary aerobic pond of flowing through, and realizes mud-water separation; Pond in the middle of supernatant drains in the pond;
D. the water in the middle of in the pond rises in the fiber ball filter with pump, further removes the SS in anhydrating;
E. drain into sterilization pool through filtering water and carry out disinfection, be stored in reuse in the clean water basin through disinfectant water.
3. a kind of waste water control method of butchering as claimed in claim 2 is characterized in that: wait to kill workshop sewage and after the workshop detritus pool is handled, be disposed in the said pump well.
4. a kind of waste water control method of butchering as claimed in claim 2 is characterized in that: said mechanical grille, the isolated waste residue of rotary drum screen cloth institute reclaim and are for further processing.
5. a kind of waste water control method of butchering as claimed in claim 2; It is characterized in that: said oil removal detritus pool and the air flotation pool isolated oil slick of institute and sediment are disposed to the storage slag bath; Take off dry-cure through water extracter and transport outward and be for further processing, this water extracter is a horizontal screw centrifuge.
6. a kind of waste water control method of butchering as claimed in claim 2 is characterized in that: the treatment time of sewage in said pre-exposure equalizing tank is 18～25 hours.
7. a kind of waste water control method of butchering as claimed in claim 2, it is characterized in that: said air flotation pool is the shallow air-floatation pond.
8. a kind of waste water control method of butchering as claimed in claim 2, it is characterized in that: said one-level settling tank is a rectangular sedimentation tank.
9. a kind of waste water control method of butchering as claimed in claim 2, it is characterized in that: said second-level settling pond is vertical-flow tube settler.
10. a kind of waste water control method of butchering as claimed in claim 2, it is characterized in that: said sterilization pool is the deflector type sterilization pool, the treatment time of sewage in this sterilization pool is 20～40 minutes.
Priority Applications (1)
| 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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| 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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| CN102701531A true CN102701531A (en) | 2012-10-03 |
| CN102701531B CN102701531B (en) | 2014-06-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992548A (en) * | 2012-12-06 | 2013-03-27 | 山东名科环保工程有限公司 | Method for treating low-temperature slaughter wastewater |
| CN103553265A (en) * | 2013-10-11 | 2014-02-05 | 沈阳建筑大学 | Module processing method for distributed slaughter wastewater |
| CN104961292A (en) * | 2015-06-04 | 2015-10-07 | 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 |
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| KR100845195B1 (en) * | 2007-06-13 | 2008-07-10 | 한국과학기술원 | Treatment of Slaughter Wastewater Using a Continuous Batch Bioreactor |
| 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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2012
- 2012-06-21 CN CN201210205757.5A patent/CN102701531B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100845195B1 (en) * | 2007-06-13 | 2008-07-10 | 한국과학기술원 | Treatment of Slaughter Wastewater Using a Continuous Batch Bioreactor |
| CN202072578U (en) * | 2010-12-08 | 2011-12-14 | 余弟和 | Dual-system slaughter waste water treatment system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102992548A (en) * | 2012-12-06 | 2013-03-27 | 山东名科环保工程有限公司 | Method for treating low-temperature slaughter wastewater |
| 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 |
| CN103553265A (en) * | 2013-10-11 | 2014-02-05 | 沈阳建筑大学 | Module processing method for distributed slaughter wastewater |
| CN104961292A (en) * | 2015-06-04 | 2015-10-07 | 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 |
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| CN102701531B (en) | 2014-06-04 |
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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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Granted publication date: 20140604 Termination date: 20200621 |