CN103011529A - Industrial wastewater treatment technology - Google Patents
Industrial wastewater treatment technology Download PDFInfo
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- 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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Abstract
The invention discloses an industrial wastewater treatment technology including an oxidation reduction reaction, an anoxic hydrolysis reaction, an anaerobic reaction, an aerobic biological reaction, ultra-filtration, nano-filtration and adsorption. The industrial wastewater treatment technology comprises the steps of carrying out pre-oxidation by adding inorganic strong oxide in wastewater, then carrying out biological treatment, allowing the wastewater to be sequentially subjected to anaerobic, anoxic and aerobic biological treatment, then carrying out flocculating settling, and at last carrying out advanced treatment. The industrial wastewater treatment technology has the characteristics of being simple in equipment structure and convenient to operate and maintain; besides, the treated water can be recycled for repeat use; no waste liquid is generated under the condition of complete degradation; meanwhile, the COD (Chemical Oxygen Demand) value of the treated industrial wastewater is lowered to the minimum; and therefore the industrial wastewater treatment technology has excellent economic and environmental benefits.
Description
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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105954553A CN103011529A (en) | 2012-12-07 | 2012-12-07 | Industrial wastewater treatment technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012105954553A CN103011529A (en) | 2012-12-07 | 2012-12-07 | Industrial wastewater treatment technology |
Publications (1)
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| CN103011529A true CN103011529A (en) | 2013-04-03 |
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| CN2012105954553A Pending CN103011529A (en) | 2012-12-07 | 2012-12-07 | Industrial wastewater treatment technology |
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Cited By (5)
| 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 | New low-carbon near-zero emission process for industrial wastewater |
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| 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 | Dyeing waste water treatment system |
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Cited By (6)
| 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 | New low-carbon near-zero emission process for industrial wastewater |
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Application publication date: 20130403 |