CN108341536A - 一种环氧树脂生产废水的处理方法 - Google Patents
一种环氧树脂生产废水的处理方法 Download PDFInfo
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- CN108341536A CN108341536A CN201810149253.3A CN201810149253A CN108341536A CN 108341536 A CN108341536 A CN 108341536A CN 201810149253 A CN201810149253 A CN 201810149253A CN 108341536 A CN108341536 A CN 108341536A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/06—Flash evaporation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/26—Treatment of water, waste water, or sewage by extraction
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
- C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
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- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/34—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32
- C02F2103/36—Nature of the water, waste water, sewage or sludge to be treated from industrial activities not provided for in groups C02F2103/12 - C02F2103/32 from the manufacture of organic compounds
- C02F2103/38—Polymers
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2301/00—General aspects of water treatment
- C02F2301/08—Multistage treatments, e.g. repetition of the same process step under different conditions
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/026—Fenton's reagent
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Water Treatment By Sorption (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
Description
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Priority Applications (1)
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CN201810149253.3A CN108341536B (zh) | 2018-02-12 | 2018-02-12 | 一种环氧树脂生产废水的处理方法 |
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CN201810149253.3A CN108341536B (zh) | 2018-02-12 | 2018-02-12 | 一种环氧树脂生产废水的处理方法 |
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CN108341536A true CN108341536A (zh) | 2018-07-31 |
CN108341536B CN108341536B (zh) | 2020-08-14 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111348795A (zh) * | 2020-03-26 | 2020-06-30 | 福州大学 | 基于电渗析的pta精制废水资源化回收利用装置和方法 |
CN111592167A (zh) * | 2020-06-02 | 2020-08-28 | 江苏扬农化工集团有限公司 | 一种环氧树脂高盐废水的处理方法 |
CN113636667A (zh) * | 2021-08-20 | 2021-11-12 | 无锡厚德石化工程设计有限公司 | 一种环氧树脂生产中含老化树脂废水的分离工艺 |
CN114590948A (zh) * | 2022-04-26 | 2022-06-07 | 扬州大学 | 一种环氧树脂生产废水无害化处置及资源化利用工艺 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1792832A (zh) * | 2005-12-05 | 2006-06-28 | 江苏三木集团有限公司 | 环氧树脂含盐废水的处理及盐的回收 |
CN102815827A (zh) * | 2012-06-18 | 2012-12-12 | 江苏扬农锦湖化工有限公司 | 环氧树脂高盐废水处理方法 |
CN106915857A (zh) * | 2015-12-25 | 2017-07-04 | 蓝星环境工程有限公司 | 一种氯醇法生产环氧丙烷皂化废水的深度处理工艺 |
CN107162298A (zh) * | 2017-04-20 | 2017-09-15 | 中交天航环保工程有限公司 | 一种高盐有机废水的近零排放处理方法 |
CN107235534A (zh) * | 2017-06-06 | 2017-10-10 | 南京工业大学 | 一种一价盐混合溶液的纳滤分离方法 |
-
2018
- 2018-02-12 CN CN201810149253.3A patent/CN108341536B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1792832A (zh) * | 2005-12-05 | 2006-06-28 | 江苏三木集团有限公司 | 环氧树脂含盐废水的处理及盐的回收 |
CN102815827A (zh) * | 2012-06-18 | 2012-12-12 | 江苏扬农锦湖化工有限公司 | 环氧树脂高盐废水处理方法 |
CN106915857A (zh) * | 2015-12-25 | 2017-07-04 | 蓝星环境工程有限公司 | 一种氯醇法生产环氧丙烷皂化废水的深度处理工艺 |
CN107162298A (zh) * | 2017-04-20 | 2017-09-15 | 中交天航环保工程有限公司 | 一种高盐有机废水的近零排放处理方法 |
CN107235534A (zh) * | 2017-06-06 | 2017-10-10 | 南京工业大学 | 一种一价盐混合溶液的纳滤分离方法 |
Non-Patent Citations (1)
Title |
---|
何晓文,伍斌: "《水体污染处理新技术及应用》", 31 March 2013, 中国科学技术大学出版社 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111348795A (zh) * | 2020-03-26 | 2020-06-30 | 福州大学 | 基于电渗析的pta精制废水资源化回收利用装置和方法 |
CN111592167A (zh) * | 2020-06-02 | 2020-08-28 | 江苏扬农化工集团有限公司 | 一种环氧树脂高盐废水的处理方法 |
CN113636667A (zh) * | 2021-08-20 | 2021-11-12 | 无锡厚德石化工程设计有限公司 | 一种环氧树脂生产中含老化树脂废水的分离工艺 |
CN114590948A (zh) * | 2022-04-26 | 2022-06-07 | 扬州大学 | 一种环氧树脂生产废水无害化处置及资源化利用工艺 |
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