CN101597116A - A kind of 2,5-dichloronitrobenzene waste water treatment process - Google Patents
A kind of 2,5-dichloronitrobenzene waste water treatment process Download PDFInfo
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- CN101597116A CN101597116A CNA2009101356953A CN200910135695A CN101597116A CN 101597116 A CN101597116 A CN 101597116A CN A2009101356953 A CNA2009101356953 A CN A2009101356953A CN 200910135695 A CN200910135695 A CN 200910135695A CN 101597116 A CN101597116 A CN 101597116A
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- waste water
- equalizing tank
- dichloronitrobenzene
- treatment process
- adsorption
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Abstract
The invention discloses a kind of 2,5-dichloronitrobenzene waste water treatment process, this technology is by throwing waste water into equalizing tank, utilize dilute sulphuric acid to carry out neutralizing treatment, throwing the waste water of catalytic electrolysis into the catalytic oxidation still then reacts, neutralize with milk of lime and regulate the processing back, carry out press filtration with plate-and-frame filter press, and filtrate is delivered to equalizing tank carry out the charcoal absorption processing, the waste water of the above-mentioned every processing of process finally can reach " integrated wastewater discharge standard ".This technology has solved the characteristics of this waste water difficult for biological degradation, is beneficial to environmental protection.
Description
Technical field
The present invention relates to a kind of waste water treatment process, be specifically related to 2 of a kind of environment-friendly type, 5--dichloronitrobenzene waste water treatment process.
Background technology
2, the organic chemical waste water in the 5-dichloronitrobenzene production process has characteristics such as the water yield is little, COD concentration is higher, difficult for biological degradation, belongs to high density, difficult degradation organic chemical waste water.This waste water environmental pollution is serious.
Summary of the invention
It is a kind of 2 that main task of the present invention is to provide, 5--dichloronitrobenzene waste water treatment process.
In order to solve above technical problem, of the present invention a kind of 2,5--dichloronitrobenzene waste water treatment process, it is characterized in that: step is as follows: a, throw dilute sulphuric acid into be marked with waste water equalizing tank, utilize dilute sulphuric acid that waste water is carried out neutralizing treatment in this pond; B, throw the catalysis and micro-electrolysis post into, the device bottom blasts air, and waste water is carried out catalytic electrolysis, generates Fe
2+With H
+When existing, aerobic generates H
2O; Hydrogen in statu nascendi has very high chemically reactive, can with a lot of component generation redox reactions in the waste water, destroy the functional group of chromonic material, change the molecular structure of material, be that chroma in waste water reduces, increase substantially the biodegradability of waste water.Nascent state Fe
2+Being good flocculation agent, is Fe through oxidation transformation
3+, when pH value raises, form Fe (OH)
3Colloid, the multinuclear macromolecular compound of the one-step hydrolysis Cheng Tie that goes forward side by side has improved the adsorption-flocculation activity, the organism in the energy active adsorption waste water.C, the waste water after catalytic site separated are thrown the catalytic oxidation still into, add H
2O
2And H
2SO
4React as catalyzer, generate Fe
3+With Fenton reagent; D, reacted wastewater is input in and equalizing tank, neutralize once more to regulate with milk of lime and handle, pH value is 7～8, to the Fe in the waste water
3+Ion is made neutralization, precipitation process.Form Fe (OH) simultaneously
3Colloid plays flocculation, adsorption to suspended substance in the waste water and organism; E, carry out press filtration, the dewatered sludge press filtration in the waste water is come out; F, filtrate being input into are marked with the equalizing tank of active carbon adsorption column, form the sewage that meets GB after charcoal absorption.
The described charcoal absorption time is 1-3h.
The advantage of above technology is: by throwing waste water into equalizing tank, utilize dilute sulphuric acid to carry out neutralizing treatment, throwing the waste water of catalytic electrolysis into the catalytic oxidation still then reacts, again with milk of lime neutralize regulate to handle after, utilize plate-and-frame filter press to carry out press filtration, the filtering filtrate of above-mentioned process is delivered to equalizing tank carry out the charcoal absorption processing, the waste water of the every processing of process finally can reach " integrated wastewater discharge standard ", enters sewage work and handles.
Embodiment
2 of this art breading, the water quality and quantity of the organic chemical waste water in the 5-dichloronitrobenzene production process is as follows:
1, waste water quality, the water yield
Throw this waste water into be marked with dilute sulphuric acid equalizing tank, in this pond, utilize dilute sulphuric acid that waste water is carried out neutralizing treatment, make pH value reach 5-6, throw the catalysis and micro-electrolysis post then into, waste water is carried out catalytic electrolysis, generate Fe
2+With H
+Waste water after again catalytic site being separated is thrown the catalytic oxidation still into, adds H
2O
2And H
2SO
4React as catalyzer, after reaction finishes, in being input into and equalizing tank, neutralize once more to regulate with milk of lime and handle, pH value is 7～8, to the Fe in the waste water
3+Ion is made neutralization, precipitation process.Form Fe (OH) simultaneously
3Colloid plays flocculation, adsorption after neutralizing once more to suspended substance in the waste water and organism, throws waste water into plate-and-frame filter press, utilizes plate-and-frame filter press to carry out press filtration, and the dewatered sludge press filtration in the waste water is come out, and waste water is further purified.
Be marked with the equalizing tank of active carbon adsorption column through filtrate being input into of press filtration, 1-3h is after the time in absorption, and liquid waste disposal finishes, and forms the sewage that meets integrated wastewater discharge standard, enters draining sewage work.
By the sewage that this operation is handled, water quality finally reaches grade III Standard among " integrated wastewater discharge standard " GB8978-1996:
| The pollutent title | Water outlet requires ((mg/L)) |
| Five-day BOD BOD 5 | 300 |
| Chemical oxygen demand COD | 500 |
| Ss suspended solid | 400 |
| PH value (zero dimension) | 6～9 |
| Santochlor | 1.0 |
| Nitrobenzene | 5.0 |
Claims (2)
1, a kind of 2,5--dichloronitrobenzene waste water treatment process, it is characterized in that: step is as follows:
A, throw dilute sulphuric acid into be marked with waste water equalizing tank, in this pond, utilize dilute sulphuric acid that waste water is carried out neutralizing treatment; B, throw the catalysis and micro-electrolysis post into, the device bottom blasts air, and waste water is carried out catalytic electrolysis, generates Fe
2+With H
+When existing, aerobic generates H
2O; Hydrogen in statu nascendi has very high chemically reactive, can with a lot of component generation redox reactions in the waste water, destroy the functional group of chromonic material, change the molecular structure of material, be that chroma in waste water reduces, increase substantially the biodegradability of waste water.Nascent state Fe
2+Being good flocculation agent, is Fe through oxidation transformation
3+, when pH value raises, form Fe (OH)
3Colloid, the multinuclear macromolecular compound of the one-step hydrolysis Cheng Tie that goes forward side by side has improved the adsorption-flocculation activity, the organism in the energy active adsorption waste water.C, the waste water after catalytic site separated are thrown the catalytic oxidation still into, add H
2O
2And H
2SO
4React as catalyzer, generate Fe
3+With Fenton reagent; D, reacted wastewater is input in and equalizing tank, neutralize once more to regulate with milk of lime and handle, pH value is 7～8, to the Fe in the waste water
3+Ion is made neutralization, precipitation process.Form Fe (OH) simultaneously
3Colloid plays flocculation, adsorption to suspended substance in the waste water and organism; E, carry out press filtration, the dewatered sludge press filtration in the waste water is come out; F, filtrate being input into are marked with the equalizing tank of active carbon adsorption column, form the sewage that meets GB after charcoal absorption.
2, according to claim 1 a kind of 2,5--dichloronitrobenzene waste water treatment process is characterized in that: the described charcoal absorption time is 1-3h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910135695 CN101597116B (en) | 2009-04-27 | 2009-04-27 | Process for treating 2,5-dichloro nitrobenzene wastewater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910135695 CN101597116B (en) | 2009-04-27 | 2009-04-27 | Process for treating 2,5-dichloro nitrobenzene wastewater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101597116A true CN101597116A (en) | 2009-12-09 |
| CN101597116B CN101597116B (en) | 2011-08-24 |
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ID=41418743
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200910135695 Active CN101597116B (en) | 2009-04-27 | 2009-04-27 | Process for treating 2,5-dichloro nitrobenzene wastewater |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102531141A (en) * | 2011-11-16 | 2012-07-04 | 北京师范大学 | Method of catalytic reduction treatment on nitrobenzene wastewater by utilizing Korean pine source charcoal |
| CN102627352A (en) * | 2012-04-17 | 2012-08-08 | 北京师范大学 | Method for catalytically reducing chloronitrobenzene waste water by using straw carbon |
| CN102786179A (en) * | 2011-05-19 | 2012-11-21 | 阳新县泰鑫化工有限公司 | Method for treatment and comprehensive utilization of high-concentration organic wastewater |
| CN103626277A (en) * | 2013-09-13 | 2014-03-12 | 上海市环境科学研究院 | Ex-situ remediation method suitable for chloronitrobenzene type polluted ground water |
| CN104355466A (en) * | 2014-11-10 | 2015-02-18 | 绍兴奇彩化工有限公司 | Purification treatment process of methoxylation wastewater |
| CN105236653A (en) * | 2015-10-13 | 2016-01-13 | 桂林市春晓环保科技有限公司 | Waste water treatment device with organic matter degradation function |
| CN105601039A (en) * | 2015-12-30 | 2016-05-25 | 江汉大学 | Method for treating nitrobenzene wastewater |
| CN105753236A (en) * | 2016-03-24 | 2016-07-13 | 湖北省宏源药业科技股份有限公司 | Treatment method of double-effect condensate water in metronidazole wastewater |
| CN107129078A (en) * | 2017-04-28 | 2017-09-05 | 南京环保产业创新中心有限公司 | O-aminophenol wastewater treatment and method of resource |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004017628A1 (en) * | 2004-04-10 | 2005-11-03 | Bayer Materialscience Ag | Process for the treatment of wastewater containing aromatic nitro compounds |
| CN1803228B (en) * | 2006-01-25 | 2010-05-12 | 中国科学院微生物研究所 | Biological restoration method for p-chloronitrobenzene compound polluted environment |
-
2009
- 2009-04-27 CN CN 200910135695 patent/CN101597116B/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102786179A (en) * | 2011-05-19 | 2012-11-21 | 阳新县泰鑫化工有限公司 | Method for treatment and comprehensive utilization of high-concentration organic wastewater |
| CN102531141A (en) * | 2011-11-16 | 2012-07-04 | 北京师范大学 | Method of catalytic reduction treatment on nitrobenzene wastewater by utilizing Korean pine source charcoal |
| CN102627352A (en) * | 2012-04-17 | 2012-08-08 | 北京师范大学 | Method for catalytically reducing chloronitrobenzene waste water by using straw carbon |
| CN103626277B (en) * | 2013-09-13 | 2016-04-13 | 上海市环境科学研究院 | Be applicable to the Ex-situ remediation method of chloronitrobenzene class polluted underground water |
| CN103626277A (en) * | 2013-09-13 | 2014-03-12 | 上海市环境科学研究院 | Ex-situ remediation method suitable for chloronitrobenzene type polluted ground water |
| CN104355466A (en) * | 2014-11-10 | 2015-02-18 | 绍兴奇彩化工有限公司 | Purification treatment process of methoxylation wastewater |
| CN104355466B (en) * | 2014-11-10 | 2016-08-24 | 浙江奇彩环境科技股份有限公司 | A kind of purification process technique of methyl-etherified waste water |
| CN105236653A (en) * | 2015-10-13 | 2016-01-13 | 桂林市春晓环保科技有限公司 | Waste water treatment device with organic matter degradation function |
| CN105601039A (en) * | 2015-12-30 | 2016-05-25 | 江汉大学 | Method for treating nitrobenzene wastewater |
| CN105601039B (en) * | 2015-12-30 | 2018-06-15 | 江汉大学 | A kind of method for the treatment of of Nitrobenzene class waste water |
| CN105753236A (en) * | 2016-03-24 | 2016-07-13 | 湖北省宏源药业科技股份有限公司 | Treatment method of double-effect condensate water in metronidazole wastewater |
| CN105753236B (en) * | 2016-03-24 | 2019-03-08 | 湖北省宏源药业科技股份有限公司 | The processing method of economic benefits and social benefits condensed water in a kind of metronidazole waste water |
| CN107129078A (en) * | 2017-04-28 | 2017-09-05 | 南京环保产业创新中心有限公司 | O-aminophenol wastewater treatment and method of resource |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101597116B (en) | 2011-08-24 |
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