ZA200205344B - A method for treatment of hexavalent chromium compounds in waste water originating from processing of metals. - Google Patents
A method for treatment of hexavalent chromium compounds in waste water originating from processing of metals.Info
- Publication number
- ZA200205344B ZA200205344B ZA200205344A ZA200205344A ZA200205344B ZA 200205344 B ZA200205344 B ZA 200205344B ZA 200205344 A ZA200205344 A ZA 200205344A ZA 200205344 A ZA200205344 A ZA 200205344A ZA 200205344 B ZA200205344 B ZA 200205344B
- Authority
- ZA
- South Africa
- Prior art keywords
- metals
- treatment
- hexavalent chromium
- chromium compounds
- processing
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
- C01G37/033—Chromium trioxide; Chromic acid
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/02—Oxides or hydrates thereof
-
- 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
-
- 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
- C02F1/70—Treatment of water, waste water, or sewage by reduction
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/02—Amorphous compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/88—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by thermal analysis data, e.g. TGA, DTA, DSC
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/32—Thermal properties
- C01P2006/33—Phase transition temperatures
- C01P2006/36—Solid to solid transition temperatures
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
- C02F2101/22—Chromium or chromium compounds, e.g. chromates
-
- 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
- C02F2103/16—Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
Landscapes
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Removal Of Specific Substances (AREA)
- Treatment Of Water By Oxidation Or Reduction (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FI20000103A FI110508B (fi) | 2000-01-19 | 2000-01-19 | Menetelmä metallien käsittelystä peräisin olevien jätevesien sisältämän 6-arvoisen kromin käsittelemiseksi |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA200205344B true ZA200205344B (en) | 2003-02-06 |
Family
ID=8557119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA200205344A ZA200205344B (en) | 2000-01-19 | 2002-07-04 | A method for treatment of hexavalent chromium compounds in waste water originating from processing of metals. |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP1250288B1 (fi) |
JP (1) | JP2003520131A (fi) |
AT (1) | ATE374732T1 (fi) |
AU (1) | AU2001228541A1 (fi) |
DE (1) | DE60130736T2 (fi) |
ES (1) | ES2295172T3 (fi) |
FI (1) | FI110508B (fi) |
WO (1) | WO2001053204A1 (fi) |
ZA (1) | ZA200205344B (fi) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007085559A1 (en) * | 2006-01-27 | 2007-08-02 | Ciba Holding Inc. | Method of treating stone sludge |
CN102189093B (zh) * | 2010-03-09 | 2015-02-04 | 刘杰 | 一种铬渣解毒方法以及解毒后铬渣的综合利用 |
CN109574185B (zh) * | 2017-09-28 | 2022-05-10 | 上海梅山钢铁股份有限公司 | 一种处理有机含铬钝化废液中六价铬离子的试剂 |
CN108178366A (zh) * | 2017-12-06 | 2018-06-19 | 宜兴市馨德环保科技有限公司 | 一种金属酸洗产生的中性盐废水回收利用的方法 |
CN110550783A (zh) * | 2019-09-29 | 2019-12-10 | 海南金海浆纸业有限公司 | 一种电解法氯酸盐生产系统中含铬废水的处理系统及处理方法 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1134763A (en) * | 1965-10-28 | 1968-11-27 | Purac Ab | Improvements in and relating to flotation tanks |
JPS4871395A (fi) * | 1971-12-27 | 1973-09-27 | ||
JPS516195A (en) * | 1974-07-05 | 1976-01-19 | Hitachi Chemical Co Ltd | Kuromuhaiekikara ryokushokuganryokuo seizosuruhoho |
US4108596A (en) * | 1975-07-11 | 1978-08-22 | Revere Copper And Brass, Incorporated | Recovery of chromium values from waste streams by the use of alkaline magnesium compounds |
JPS54108460A (en) * | 1978-02-13 | 1979-08-25 | Tamotsu Morimasa | Method of disposing chrome plating waste liquor |
US5415848A (en) * | 1993-06-24 | 1995-05-16 | General Electric Company | Method for removal of hexavalent chromium from a solution |
-
2000
- 2000-01-19 FI FI20000103A patent/FI110508B/fi active
-
2001
- 2001-01-18 DE DE60130736T patent/DE60130736T2/de not_active Expired - Fee Related
- 2001-01-18 ES ES01942611T patent/ES2295172T3/es not_active Expired - Lifetime
- 2001-01-18 AT AT01942611T patent/ATE374732T1/de not_active IP Right Cessation
- 2001-01-18 JP JP2001553217A patent/JP2003520131A/ja active Pending
- 2001-01-18 WO PCT/FI2001/000039 patent/WO2001053204A1/en active IP Right Grant
- 2001-01-18 EP EP01942611A patent/EP1250288B1/en not_active Expired - Lifetime
- 2001-01-18 AU AU2001228541A patent/AU2001228541A1/en not_active Abandoned
-
2002
- 2002-07-04 ZA ZA200205344A patent/ZA200205344B/xx unknown
Also Published As
Publication number | Publication date |
---|---|
AU2001228541A1 (en) | 2001-07-31 |
JP2003520131A (ja) | 2003-07-02 |
FI110508B (fi) | 2003-02-14 |
WO2001053204A1 (en) | 2001-07-26 |
EP1250288B1 (en) | 2007-10-03 |
ATE374732T1 (de) | 2007-10-15 |
DE60130736T2 (de) | 2008-07-03 |
EP1250288A1 (en) | 2002-10-23 |
FI20000103A0 (fi) | 2000-01-19 |
DE60130736D1 (de) | 2007-11-15 |
FI20000103A (fi) | 2001-07-20 |
ES2295172T3 (es) | 2008-04-16 |
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