CN1298839A - Process for treating waste water containing sulfanilamide - Google Patents
Process for treating waste water containing sulfanilamide Download PDFInfo
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- CN1298839A CN1298839A CN99125465A CN99125465A CN1298839A CN 1298839 A CN1298839 A CN 1298839A CN 99125465 A CN99125465 A CN 99125465A CN 99125465 A CN99125465 A CN 99125465A CN 1298839 A CN1298839 A CN 1298839A
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- waste water
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- sulfanilamide
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Abstract
The present invention relates to a treatment method of sulfanil amide waste water produced in the pharmaceutical industry. Said method uses chemical and physical combined method to pretreat the sulfanilamide waste water to improve its flocculotion property, and to change hard to proceed biochemical separation waste water into biochemical separable waste water. It is simple in technology, low in cost, and the treated water can reach the standart of discharge.
Description
The present invention relates to a kind of method of handling trade effluent, specifically, the present invention relates to a kind of method of handling the waste water containing sulfanilamide of pharmaceutical industries generation.
At present, causing the principal element of ambient water resource pollution is the discharging of trade effluent and resident living waste water.Wherein the discharging of trade effluent is particularly serious to the pollution of environment, and therefore, the discharging of strict control trade effluent becomes the current problem that becomes increasingly conspicuous.
The source of trade effluent is varied, and wherein contained composition also differs greatly; Therefore, should take different processing modes to different types of waste water.
Sulfanilamide (SN) is a class intermediate main in China's pharmaceutical industries, its finished product be sulfa drugs such as Sulfaguanidine, sulfanilamide (SN) dimethyl mutter sound of sighing etc., its range of application is very extensive.Because sulfa drugs generally is used for antisepsis and anti-inflammation, so it has very had strong inhibitory effects to microorganism; Therefore, its toxicity of waste water containing sulfanilamide that produces in the sulfanilamide (SN) production process is bigger.
Have sulfo group on its phenyl ring of chemical substance in the waste water containing sulfanilamide, simultaneously sulfo group is a hydrophilic radical, and therefore the solubleness height has caused the COD of waste water containing sulfanilamide dense and be difficult to biochemistry.
The manufacturer of domestic most of sulfa drugss does not take effectively to handle means to the waste water containing sulfanilamide that produces in the production process at present, but adopt the method for neutralization, dilution directly to discharge afterwards, handle like this and effectively do not remove pollutants in waste water, must cause serious harm environment.
The more treatment process of current domestic research has: coagulant sedimentation, absorption method, extraction process etc., but because of treatment effect the not good or higher prospect that does not have practical application of processing cost.Therefore, the processing of waste water containing sulfanilamide is a problem demanding prompt solution.
The objective of the invention is at above-mentioned problems of the prior art, propose a kind of method of handling the waste water containing sulfanilamide of pharmaceutical industries generation.This method is carried out pre-treatment by the method that chemistry combines with physics to waste water containing sulfanilamide, changed the structure of compound in the waste water containing sulfanilamide, reduced the COD concentration of waste water, improved the flocculating property of waste water, and will be difficult to originally that biochemical waste water becomes can biochemical waste water; Method technology of the present invention is simple, and cost is low, and the decontamination effect improving of waste water is very desirable.The waste water containing sulfanilamide of handling through the method for the invention can qualified discharge, has solved the problem that present waste water containing sulfanilamide is administered difficulty.
Below, technical scheme of the present invention is described in detail.
Mechanism of the present invention is by the method that chemistry and physics combine, to change the structure of compound in the waste water containing sulfanilamide, the COD concentration in the reduction waste water, but the flocculence of raising waste water, and the biodegradability of raising waste water.The present invention has reduced the COD concentration of waste water by the oxidizing, flocculating pre-treatment, has improved the flocculating property and the biodegradability of waste water, and original difficult biochemical waste water is changed into can biochemical waste water, can qualified discharge after biochemical treatment.
Compound in the waste water containing sulfanilamide that pharmaceutical industries produces is mainly the compound of following structure:
Wherein R is sulfo group SOO
3H or SOO
3Cl.
Owing to have sulfo group on this compound phenyl ring, so be difficult to biochemical treatment.Simultaneously because sulfo group is a hydrophilic radical, therefore the solubleness height in water has caused the COD of waste water containing sulfanilamide dense and be difficult to biochemistry.
Method of the present invention can realize by following two kinds of approach: 1. by the approach of chemical oxidation, change the molecular structure of sulfo group compound, phenyl ring is disconnected, become acid, the biodegradability of treated waste water is improved greatly.2. by the approach of chemical oxidation, change the molecular structure of sulfo group compound, the sulfo group in the sulfo group compound is come off from phenyl ring, and then the solubleness of compound in the original waste water containing sulfanilamide is reduced greatly.
Solubleness through compound in the aforesaid method processed waste water reduces greatly; small-particle or colloid have been formed; again by in waste water, adding coagulating agent and flocculation agent; make small-particle or colloid flocculation sediment in the waste water; at last; handle with conventional biochemical method again, thereby reach the purpose of removing COD in the waste water.
The chemical equation of the method for the invention is as follows:
Wherein R is sulfo group SOO
3H or SOO
3Cl.
The method of processing waste water containing sulfanilamide of the present invention comprises the steps:
(1) in waste water containing sulfanilamide, adds oxygenant;
(2) adding coagulating agent and flocculation agent carry out flocculation sediment in aforesaid waste water;
(3) biochemical treatment.
Wherein, oxygenant of the present invention is the compound with oxidation susceptibility, and preferred compound is ozone, clorox, sodium chlorate, hydrogen peroxide, Sulfothiorine, Sodium Persulfate.The add-on of described oxygenant is the 0.1%-1% of waste water total amount by weight.Reaction times is 10-120 minute, and reaction time range is 40-60 minute preferably.
Coagulating agent of the present invention can adopt conventional coagulating agent.Described coagulating agent comprises cationic coagulating agent, as polymerize aluminum chloride (PAC), polyaluminium sulfate (PAS), Tai-Ace S 150, polymer phosphate aluminium (PAP), bodied ferric sulfate (PFS), poly-ferric chloride (PFC), iron(ic) chloride; The anionic coagulating agent is as activated silicic acid (AS), polymeric silicicacid (PS); The inorganic composite type coagulating agent is as aluminium iron polychloride (PAFC), poly-silicic acid iron sulfate (PFSS), polymerization sulfuric chlorohydrin iron (PFCS), polymer aluminium silicate (PASI), polymeric silicicacid iron (PFSI), polymeric aluminium ferrum silicate (PAFSI), polymer phosphate ferro-aluminum (PAFP), the compound poly-ferric chloride of silico-calcium (SCPAFC) etc.
Wherein the add-on scope of coagulating agent of the present invention is 1000-10000PPM, and preferably adding scope is 3000-5000PPM.
Flocculation agent wherein of the present invention is an anion-polyacrylamide, and its molecular weight is more than or equal to 9,000,000.
The add-on scope of described flocculation agent is 1-10PPM, and preferred add-on scope is 3-5PPM.
Biochemical treatment of the present invention can be adopted conventional treatment process, the oxygen-aerobic biodegradation of for example can holding concurrently.The residence time that the oxygen of wherein holding concurrently is degraded is 4-6 hour; The residence time 8-12 of aerobic degradation hour.Aerobic degradation is handled and can be adopted soft-filler contact biological oxidation process, its gas-water ratio 15: 1-25: 1.
Treatment process of the present invention has following beneficial effect:
1. at present the waste water containing sulfanilamide that produces of pharmaceutical industries is difficult to biochemistry, handles with method of the present invention, and will be difficult to that biochemical waste water is transformed into can biochemical waste water, present insurmountable waste water containing sulfanilamide is handled problems be resolved.
2. after handling through oxidation of the present invention-flucculation process, the COD total amount in the waste water can be removed 35%-70%, BOD
5/ COD brings up to 0.3-0.5 from 0.05 of raw wastewater, and after handling through biochemical method of the present invention, waste water can qualified discharge again.
3. the cost of treatment process of the present invention is lower, is suitable for practical application in the industry.
Embodiment
Certain waste water containing sulfanilamide COD of factory of south is 7417mg/l, under the pH4 condition, add sodium chlorate, add-on 0.4%, react and add Tai-Ace S 150 after 60 minutes, add-on 4000ppm stirs under pH6.5 after 1 minute and adds anion-polyacrylamide, add-on 5ppm, water outlet COD is 3101mg/l behind flocculation sediment, and COD removes 58.2%, BOD
5/ COD brings up to 0.4 by former water 0.05, and the oxygen of then pretreated waste water being held concurrently-bio-contact oxidation is handled, water inlet COD1380mg/l, hold concurrently 6 hours oxygen residence time, 10 hours bio-contact oxidation residence time, gas-water ratio 20: 1, discharging water outlet COD after treatment is less than 150mg/l.
Claims (9)
1. a method of handling waste water containing sulfanilamide is characterized in that, comprises the steps:
(1) add oxygenant in waste water containing sulfanilamide, the reaction times is 10-120 minute;
(2) adding coagulating agent and flocculation agent carry out flocculation sediment in aforesaid waste water;
(3) biochemical treatment;
Wherein the add-on of coagulating agent is 1000-10000PPM;
Wherein the add-on of flocculation agent is 1-10PPM.
2. method according to claim 1 is characterized in that, described oxygenant is a kind of in ozone, clorox, sodium chlorate, hydrogen peroxide, Sulfothiorine, the Sodium Persulfate or their combination.
3. method according to claim 1 is characterized in that, the add-on of described oxygenant is the 0.1%-1% of waste water total amount by weight.
4. method according to claim 1 is characterized in that, the reaction times of described adding oxygenant is 40-60 minute.
5. method according to claim 1, it is characterized in that described coagulating agent is a kind of in polymerize aluminum chloride, polyaluminium sulfate, Tai-Ace S 150, polymer phosphate aluminium, bodied ferric sulfate, poly-ferric chloride, iron(ic) chloride, activated silicic acid, polymeric silicicacid, aluminium iron polychloride, poly-silicic acid iron sulfate, polymerization sulfuric chlorohydrin iron, polymer aluminium silicate, polymeric silicicacid iron, polymeric aluminium ferrum silicate, polymer phosphate ferro-aluminum, the compound poly-ferric chloride of silico-calcium or their combination.
6. method according to claim 1 is characterized in that, the add-on of described coagulating agent is 3000-5000PPM.
7. method according to claim 1 is characterized in that, described flocculation agent is an anion-polyacrylamide.
8. method according to claim 1 is characterized in that, the add-on of described flocculation agent is 3-5PPM.
9. method according to claim 1 is characterized in that, described biochemical treatment is the oxygen-aerobic biodegradation of holding concurrently;
The oxygen degradation time of wherein holding concurrently is 4-6 hour; The time 8-12 of aerobic degradation hour; Aerobic degradation is handled and is adopted soft-filler contact biological oxidation process, its gas-water ratio 15: 1-25: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99125465 CN1101343C (en) | 1999-12-09 | 1999-12-09 | Process for treating waste water containing sulfanilamide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99125465 CN1101343C (en) | 1999-12-09 | 1999-12-09 | Process for treating waste water containing sulfanilamide |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1298839A true CN1298839A (en) | 2001-06-13 |
| CN1101343C CN1101343C (en) | 2003-02-12 |
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ID=5283946
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99125465 Expired - Fee Related CN1101343C (en) | 1999-12-09 | 1999-12-09 | Process for treating waste water containing sulfanilamide |
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| CN (1) | CN1101343C (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503478C (en) * | 2006-07-27 | 2009-06-24 | 王树森 | Waste water treatment method and its device |
| CN101734825B (en) * | 2008-11-20 | 2012-07-25 | 中国石油化工股份有限公司 | Method for treating wastewater generated by cyclohexanone ammoximation process |
| CN102992458A (en) * | 2012-11-26 | 2013-03-27 | 洪仁作 | Flocculating agent for treating leather waste water |
| CN103086562A (en) * | 2011-11-01 | 2013-05-08 | 上海博丹环境工程技术有限公司 | Phenolic resin wastewater processing method and special-purposed device |
| CN104211150A (en) * | 2014-08-26 | 2014-12-17 | 北京国中科创环境科技有限责任公司 | Advanced treatment method for degradation-resistant organic wastewater |
| CN105439262A (en) * | 2014-08-28 | 2016-03-30 | 中国石油化工股份有限公司 | Organic amine-containing wastewater pretreatment method |
| CN108017196A (en) * | 2017-12-14 | 2018-05-11 | 山鹰国际控股股份公司 | A kind of wastewater deep treatment process of acid out oxidizing, flocculating precipitation |
| CN109019795A (en) * | 2018-07-31 | 2018-12-18 | 南京化学工业园环保产业协同创新有限公司 | A kind of COD degradation agent and its preparation method and application |
| CN109626677A (en) * | 2019-02-22 | 2019-04-16 | 江苏同瑞环保有限公司 | A kind of advanced treatment process of coking waste water |
| CN110683720A (en) * | 2019-11-21 | 2020-01-14 | 重庆化医长寿化工集团有限公司 | Method for treating sulfanilamide mother liquor |
| CN113121036A (en) * | 2021-03-15 | 2021-07-16 | 太原理工大学 | Integrated device for degrading antibiotic wastewater by persulfate |
| CN113429080A (en) * | 2021-07-15 | 2021-09-24 | 郑州大学综合设计研究院有限公司 | Process for treating wastewater generated in sulfamonomethoxine production |
-
1999
- 1999-12-09 CN CN 99125465 patent/CN1101343C/en not_active Expired - Fee Related
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100503478C (en) * | 2006-07-27 | 2009-06-24 | 王树森 | Waste water treatment method and its device |
| CN101734825B (en) * | 2008-11-20 | 2012-07-25 | 中国石油化工股份有限公司 | Method for treating wastewater generated by cyclohexanone ammoximation process |
| CN103086562A (en) * | 2011-11-01 | 2013-05-08 | 上海博丹环境工程技术有限公司 | Phenolic resin wastewater processing method and special-purposed device |
| CN103086562B (en) * | 2011-11-01 | 2015-02-18 | 上海博丹环境工程技术有限公司 | Phenolic resin wastewater processing method and special-purposed device |
| CN102992458A (en) * | 2012-11-26 | 2013-03-27 | 洪仁作 | Flocculating agent for treating leather waste water |
| CN104211150B (en) * | 2014-08-26 | 2016-04-27 | 北京国中科创环境科技有限责任公司 | A kind of deep treatment method to organic wastewater with difficult degradation thereby |
| CN104211150A (en) * | 2014-08-26 | 2014-12-17 | 北京国中科创环境科技有限责任公司 | Advanced treatment method for degradation-resistant organic wastewater |
| CN105439262A (en) * | 2014-08-28 | 2016-03-30 | 中国石油化工股份有限公司 | Organic amine-containing wastewater pretreatment method |
| CN105439262B (en) * | 2014-08-28 | 2018-03-20 | 中国石油化工股份有限公司 | A kind of preprocess method containing organic amine wastewater |
| CN108017196A (en) * | 2017-12-14 | 2018-05-11 | 山鹰国际控股股份公司 | A kind of wastewater deep treatment process of acid out oxidizing, flocculating precipitation |
| CN109019795A (en) * | 2018-07-31 | 2018-12-18 | 南京化学工业园环保产业协同创新有限公司 | A kind of COD degradation agent and its preparation method and application |
| CN109626677A (en) * | 2019-02-22 | 2019-04-16 | 江苏同瑞环保有限公司 | A kind of advanced treatment process of coking waste water |
| CN110683720A (en) * | 2019-11-21 | 2020-01-14 | 重庆化医长寿化工集团有限公司 | Method for treating sulfanilamide mother liquor |
| CN113121036A (en) * | 2021-03-15 | 2021-07-16 | 太原理工大学 | Integrated device for degrading antibiotic wastewater by persulfate |
| CN113429080A (en) * | 2021-07-15 | 2021-09-24 | 郑州大学综合设计研究院有限公司 | Process for treating wastewater generated in sulfamonomethoxine production |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1101343C (en) | 2003-02-12 |
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Granted publication date: 20030212 Termination date: 20101209 |