CN103011529A - Industrial wastewater treatment technology - Google Patents

Industrial wastewater treatment technology Download PDF

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Publication number
CN103011529A
CN103011529A CN2012105954553A CN201210595455A CN103011529A CN 103011529 A CN103011529 A CN 103011529A CN 2012105954553 A CN2012105954553 A CN 2012105954553A CN 201210595455 A CN201210595455 A CN 201210595455A CN 103011529 A CN103011529 A CN 103011529A
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treatment
waste water
pond
water
anoxic
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CN2012105954553A
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Chinese (zh)
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赵玲萍
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Changzhou University
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Changzhou University
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Priority to CN2012105954553A priority Critical patent/CN103011529A/en
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Abstract

本发明公开了一种化工工业废水处理工艺,包括氧化还原反应、缺氧水解反应、厌氧反应、好氧生物反应、超滤、纳滤、吸附。本发明是通过在废水中加入无机强氧化物进行预氧化处理,再生物处理,使废水依次经过厌氧、缺氧、好氧生物处理,再絮凝沉降,最后深度处理。本发明具有设备结构简单,便于操作和维修的特点,而且对处理后的水质可以反复循环利用,在彻底降解情况下,没有废液产生,同时使处理后的工业废水的COD值降到最低,具有良好的经济和环境效益。The invention discloses a chemical industry wastewater treatment process, which includes redox reaction, anoxic hydrolysis reaction, anaerobic reaction, aerobic biological reaction, ultrafiltration, nanofiltration and adsorption. In the present invention, pre-oxidation treatment and rebiological treatment are carried out by adding inorganic strong oxides into the waste water, so that the waste water undergoes anaerobic, anoxic and aerobic biological treatment in sequence, then flocculation and sedimentation, and finally advanced treatment. The invention has the characteristics of simple equipment structure, easy operation and maintenance, and the treated water can be recycled repeatedly. In the case of complete degradation, no waste liquid is produced, and the COD value of the treated industrial wastewater is reduced to the minimum. It has good economic and environmental benefits.

Description

A kind of chemical engineering industry waste water treatment process
Technical field
The present invention relates to a kind of chemical engineering industry waste water treatment process, specifically a kind of process for treating industrial waste water.
Background technology
In the factory of enterprise, mainly be distributed in the industries such as electronics, plastic cement, plating, five metals, printing, food, printing and dyeing.Though yet most of sewage that these factories produce are through just being discharged into after certain processing in the cultivation waters such as lake, reservoir, rivers, pond.But, still there are a lot of impurity to be difficult to process in the sewage after processing, for example: organic chloride comprises the chlorine-containing organic compounds such as chlorinated aliphatic hydrocarbon, chlorination aromatic hydrocarbon.The chemical property of organic chloride is relatively stable, easily accumulates in the organic matter of organism, soils and sediments, and in the occurring in nature degraded slowly, the environmental hazard cycle is long.Many organic chlorides are considered to have " carcinogenic, teratogenesis shape, mutagenesis " effect; The color of industrial sewage can not get weakening in addition, so not only can not reach the standard of national requirements, but also can produce secondary pollution to environment.They have a strong impact on existence, the growth of cultured fishes, affect output, the quality of fishery products, cause biological processing unit efficient obviously to descend, and also jeopardize people's physical and mental health
Summary of the invention
The purpose of this invention is to provide a kind of technique for treating industrial wastewater, for cooled trade effluent being reclaimed and utilizing saving water resource.The method carries out effectively removing synchronously to nutritive elements such as carbon containing organic pollutant and nitrogen, phosphorus, and the final outflow water chemical oxygen demand COD can reach below the 10mg/L, and ammonia nitrogen maintains below the 5mg/L, and total phosphorus maintains below the 0.5mg/L can be back to industrial production.
Technical scheme of the present invention:
A kind of chemical engineering industry waste water treatment process is characterized in that:
(1) pre-oxidation treatment: add inorganic strong oxide compound and carry out oxide treatment in waste water, the amount of adding is waste water 30~40kg per ton;
(2) acidication: the wastewater from chemical industry after the oxide treatment is placed the hydrolysis acidification pool acidifying that is hydrolyzed, and hydraulic detention time is 2.5~3.0 hours;
(3) biological treatment: waste water is processed through anaerobism, anoxic, aerobe successively;
(4) flocculating settling: add polymerize aluminum chloride and polypropylene aminoacyl and carry out mud-water separation;
(5) advanced treatment: the second pond water outlet is processed through entering the RO film after coarse filtration, the essence filter successively.
Described inorganic strong oxidizer is sodium chlorate, sodium manganate, Na2Fe04 and catalyst oxidation nickel, and the mass ratio of three kinds of strong oxidizers is: sodium chlorate 20~50%, sodium manganate 20~50%, Na2Fe04 20~50%.
Described anaerobic pond is UASB anaerobic sludge expansion pond.
Described Aerobic Pond is the value aerobic biofilter.
Effect of the present invention:
Can carry out effectively removing synchronously to nutritive elements such as carbon containing organic pollutant and nitrogen, phosphorus, the final outflow water chemical oxygen demand COD can reach below the 10mg/L, ammonia nitrogen maintains below the 5mg/L, total phosphorus maintains below the 0.5mg/L, can be back to industrial production, ultrafiltration, nanofiltration concentrated solution are cycled to repeat processing, and thoroughly degraded does not have waste liquid to produce.
Advantage of the present invention is:
(1) device structure is simple, the characteristics of convenient operation and maintenance;
(2) can reclaim and utilize trade effluent, the trade effluent after the processing can use as boiler feed water again;
(3) saving water resource in thorough degraded situation, does not have waste liquid to produce, and makes simultaneously the COD value of the trade effluent after the processing drop to minimum;
(4) has good economy and environment benefit.
Embodiment
Example 1
In waste water, add inorganic strong oxide compound (sodium chlorate 30%, sodium manganate 30%, Na2Fe04 20%) carries out oxide treatment, the amount that adds is waste water 30kg per ton, acidication: the wastewater from chemical industry after the oxide treatment is placed the hydrolysis acidification pool acidifying that is hydrolyzed, hydraulic detention time is 2.5 hours, biological treatment: make waste water pass through successively anaerobism, anoxic, aerobe is processed, flocculating settling: add polymerize aluminum chloride and polypropylene aminoacyl and carry out mud-water separation, advanced treatment: coarse filtration is passed through in the second pond water outlet successively, entering the RO film after the essence filter processes, the water outlet chemical oxygen demand COD can reach 8mg/L, and ammonia nitrogen maintains 3mg/L, and total phosphorus maintains 0.3mg/L.
Example 2
In waste water, add inorganic strong oxide compound (sodium chlorate 30%, sodium manganate 20%, Na2Fe04 50%) carries out oxide treatment, the amount that adds is waste water 35kg per ton, acidication: the wastewater from chemical industry after the oxide treatment is placed the hydrolysis acidification pool acidifying that is hydrolyzed, hydraulic detention time is 3.0 hours, biological treatment: make waste water pass through successively anaerobism, anoxic, aerobe is processed, flocculating settling: add polymerize aluminum chloride and polypropylene aminoacyl and carry out mud-water separation, advanced treatment: coarse filtration is passed through in the second pond water outlet successively, entering the RO film after the essence filter processes, the water outlet chemical oxygen demand COD can reach below the 5mg/L, ammonia nitrogen maintains 2mg/L, and total phosphorus maintains 0.1mg/L.
Example 3
In waste water, add inorganic strong oxide compound (sodium chlorate 40%, sodium manganate 40%, Na2Fe04 20%) carries out oxide treatment, the amount that adds is waste water 40kg per ton, acidication: the wastewater from chemical industry after the oxide treatment is placed the hydrolysis acidification pool acidifying that is hydrolyzed, hydraulic detention time is 3.0 hours, biological treatment: make waste water pass through successively anaerobism, anoxic, aerobe is processed, flocculating settling: add polymerize aluminum chloride and polypropylene aminoacyl and carry out mud-water separation, advanced treatment: coarse filtration is passed through in the second pond water outlet successively, entering the RO film after the essence filter processes, the water outlet chemical oxygen demand COD can reach 5mg/L, and ammonia nitrogen maintains 1mg/L, and total phosphorus maintains 0.2mg/L.

Claims (2)

1. chemical engineering industry waste water treatment process is characterized in that:
(1) pre-oxidation treatment: add inorganic strong oxide compound and carry out oxide treatment in waste water, the amount of adding is waste water 30~40kg per ton;
(2) acidication: the wastewater from chemical industry after the oxide treatment is placed the hydrolysis acidification pool acidifying that is hydrolyzed, and hydraulic detention time is 2.5~3.0 hours;
(3) biological treatment: waste water is processed through anaerobism, anoxic, aerobe successively;
(4) flocculating settling: add polymerize aluminum chloride and polypropylene aminoacyl and carry out mud-water separation;
(5) advanced treatment: the second pond water outlet is processed through entering the RO film after coarse filtration, the essence filter successively.
2. a kind of chemical engineering industry method of wastewater treatment according to claim 1, it is characterized in that: described inorganic strong oxidizer is sodium chlorate, sodium manganate, Na2Fe04 and catalyst oxidation nickel, the mass ratio of three kinds of strong oxidizers is: sodium chlorate 20~50%, sodium manganate 20~50%, Na2Fe04 20~50%; Described anaerobic pond is UASB anaerobic sludge expansion pond; Described Aerobic Pond is the value aerobic biofilter.
CN2012105954553A 2012-12-07 2012-12-07 Industrial wastewater treatment technology Pending CN103011529A (en)

Priority Applications (1)

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Application Number Priority Date Filing Date Title
CN2012105954553A CN103011529A (en) 2012-12-07 2012-12-07 Industrial wastewater treatment technology

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395934A (en) * 2013-08-02 2013-11-20 江苏和顺环保股份有限公司 Processing apparatus for machine solvent wastewater and wastewater containing organic solvent
CN104291522A (en) * 2014-09-16 2015-01-21 天津千鑫有色金属制品有限公司 Method for treating industrial wastewater
CN104944709A (en) * 2015-07-01 2015-09-30 郭景奎 Electroplating wastewater zero-discharge treatment method and system
CN105366876A (en) * 2015-09-25 2016-03-02 张荣斌 Urban industrial sewage treatment system
CN117720226A (en) * 2023-12-18 2024-03-19 山西大学 A new low-carbon and near-zero emission process for industrial wastewater

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CN102583879A (en) * 2012-01-16 2012-07-18 宁波工程学院 High-concentration integrated chemical organic wastewater treatment process
CN102659280A (en) * 2012-04-20 2012-09-12 南京理工大学常熟研究院有限公司 Effective printing and dyeing sewage treatment method

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WO2003093178A1 (en) * 2002-04-30 2003-11-13 International Waste Management Systems Plc Organic slurry treatment process
CN1762843A (en) * 2004-10-20 2006-04-26 哈尔滨工业大学 Pollution removing composite medicament for water disposal
CN201990576U (en) * 2011-01-27 2011-09-28 上海彰华膜净化有限公司 A printing and dyeing wastewater treatment system
CN102464401A (en) * 2011-10-20 2012-05-23 常州亚环环保科技有限公司 COD (chemical oxygen demand) degradation agent for removing formaldehyde in industrial wastewater
CN102583879A (en) * 2012-01-16 2012-07-18 宁波工程学院 High-concentration integrated chemical organic wastewater treatment process
CN102659280A (en) * 2012-04-20 2012-09-12 南京理工大学常熟研究院有限公司 Effective printing and dyeing sewage treatment method

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103395934A (en) * 2013-08-02 2013-11-20 江苏和顺环保股份有限公司 Processing apparatus for machine solvent wastewater and wastewater containing organic solvent
CN104291522A (en) * 2014-09-16 2015-01-21 天津千鑫有色金属制品有限公司 Method for treating industrial wastewater
CN104944709A (en) * 2015-07-01 2015-09-30 郭景奎 Electroplating wastewater zero-discharge treatment method and system
CN105366876A (en) * 2015-09-25 2016-03-02 张荣斌 Urban industrial sewage treatment system
CN105366876B (en) * 2015-09-25 2017-12-01 东营国安化工有限公司 Urban industry sewage disposal system
CN117720226A (en) * 2023-12-18 2024-03-19 山西大学 A new low-carbon and near-zero emission process for industrial wastewater
US12358823B2 (en) 2023-12-18 2025-07-15 Shanxi University Low-carbon near zero emission process of industrial waste water

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Application publication date: 20130403