JPS5549191A - Purifying treatment method of waste water - Google Patents
Purifying treatment method of waste waterInfo
- Publication number
- JPS5549191A JPS5549191A JP12165478A JP12165478A JPS5549191A JP S5549191 A JPS5549191 A JP S5549191A JP 12165478 A JP12165478 A JP 12165478A JP 12165478 A JP12165478 A JP 12165478A JP S5549191 A JPS5549191 A JP S5549191A
- Authority
- JP
- Japan
- Prior art keywords
- added
- waste water
- sediment
- chlorine
- metal salt
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
Abstract
PURPOSE: To remove metal salt, NH3 and cyanide at high efficiency, by adding chlorine-based oxidizing agent then reducing agent under specified condition to the NH3 and cyanide waste water containing metal salt, and adding ferrous salt under acidic state to remove sediment, then adding slaked lime to remove sediment.
CONSTITUTION: Chlorine-based oxidizing agent is added to ammonia and cyanide waste water containing metal salt so as to maintain the oxidation-reduction potential difference(ORP) within 550W700mV, and then chlorine-based oxidizing agent is added to keep ORP within 800W900mV while maintaning pH within 7.5W8.5, then reducing agent is added so as to keep ORP within 150W200mV, next mineral acid is added and ferrous salt is added while maintaining pH at acidity to produce sediment, which is removed, then slaked lime is added to adjust pH to 12 or more, and the produced sediment is removed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12165478A JPS5549191A (en) | 1978-10-03 | 1978-10-03 | Purifying treatment method of waste water |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12165478A JPS5549191A (en) | 1978-10-03 | 1978-10-03 | Purifying treatment method of waste water |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5549191A true JPS5549191A (en) | 1980-04-09 |
JPS572077B2 JPS572077B2 (en) | 1982-01-13 |
Family
ID=14816589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12165478A Granted JPS5549191A (en) | 1978-10-03 | 1978-10-03 | Purifying treatment method of waste water |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5549191A (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5120451A (en) * | 1989-07-05 | 1992-06-09 | Minproc Technology Pty. Limited | Process for reducing the cyanide content of a solution |
US5158687A (en) * | 1991-07-11 | 1992-10-27 | Hydrite Chemical Co. | Methods of removing undesired ions from aqueous solutions |
KR100433048B1 (en) * | 2002-01-31 | 2004-05-24 | (주)동진켐스타 | Total Nitrogen Eliminator Composition |
US7253332B2 (en) * | 2001-11-08 | 2007-08-07 | Nihon Parkerizing Co., Ltd. | Method for treating cyanide waste liquid |
JP2009254959A (en) * | 2008-04-15 | 2009-11-05 | Sumitomo Heavy Industries Environment Co Ltd | Method and apparatus for treating wastewater |
WO2013147128A1 (en) * | 2012-03-30 | 2013-10-03 | 栗田工業株式会社 | Method for treating cyanogen-containing waste water |
JP2013208551A (en) * | 2012-03-30 | 2013-10-10 | Kurita Water Ind Ltd | Method for treating cyanogen-containing waste water |
JP2013208550A (en) * | 2012-03-30 | 2013-10-10 | Kurita Water Ind Ltd | Method for treating cyanogen-containing waste water |
CN104341056A (en) * | 2013-07-24 | 2015-02-11 | 上海派特贵金属环保科技有限公司 | A method and a treatment trough for treating waste liquid of a precious-metal recovery process |
JP2015202483A (en) * | 2014-04-16 | 2015-11-16 | 栗田工業株式会社 | Method of treating wastewater containing ammonia |
JP2021016845A (en) * | 2019-07-23 | 2021-02-15 | 株式会社片山化学工業研究所 | Method for treating cyanide-containing wastewater |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4827569A (en) * | 1971-08-14 | 1973-04-11 | ||
JPS50106455A (en) * | 1974-01-31 | 1975-08-21 | ||
JPS5280658A (en) * | 1975-12-26 | 1977-07-06 | Kubota Ltd | Method for removing ammoniac nitrogen from waste water |
-
1978
- 1978-10-03 JP JP12165478A patent/JPS5549191A/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4827569A (en) * | 1971-08-14 | 1973-04-11 | ||
JPS50106455A (en) * | 1974-01-31 | 1975-08-21 | ||
JPS5280658A (en) * | 1975-12-26 | 1977-07-06 | Kubota Ltd | Method for removing ammoniac nitrogen from waste water |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5120451A (en) * | 1989-07-05 | 1992-06-09 | Minproc Technology Pty. Limited | Process for reducing the cyanide content of a solution |
US5158687A (en) * | 1991-07-11 | 1992-10-27 | Hydrite Chemical Co. | Methods of removing undesired ions from aqueous solutions |
US7253332B2 (en) * | 2001-11-08 | 2007-08-07 | Nihon Parkerizing Co., Ltd. | Method for treating cyanide waste liquid |
KR100433048B1 (en) * | 2002-01-31 | 2004-05-24 | (주)동진켐스타 | Total Nitrogen Eliminator Composition |
JP2009254959A (en) * | 2008-04-15 | 2009-11-05 | Sumitomo Heavy Industries Environment Co Ltd | Method and apparatus for treating wastewater |
WO2013147128A1 (en) * | 2012-03-30 | 2013-10-03 | 栗田工業株式会社 | Method for treating cyanogen-containing waste water |
JP2013208551A (en) * | 2012-03-30 | 2013-10-10 | Kurita Water Ind Ltd | Method for treating cyanogen-containing waste water |
JP2013208550A (en) * | 2012-03-30 | 2013-10-10 | Kurita Water Ind Ltd | Method for treating cyanogen-containing waste water |
CN104169226A (en) * | 2012-03-30 | 2014-11-26 | 栗田工业株式会社 | Method for treating cyanogen-containing waste water |
CN104341056A (en) * | 2013-07-24 | 2015-02-11 | 上海派特贵金属环保科技有限公司 | A method and a treatment trough for treating waste liquid of a precious-metal recovery process |
JP2015202483A (en) * | 2014-04-16 | 2015-11-16 | 栗田工業株式会社 | Method of treating wastewater containing ammonia |
JP2021016845A (en) * | 2019-07-23 | 2021-02-15 | 株式会社片山化学工業研究所 | Method for treating cyanide-containing wastewater |
Also Published As
Publication number | Publication date |
---|---|
JPS572077B2 (en) | 1982-01-13 |
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