GB1516255A - Process for removing heavy metal sulphides from aqueous systems - Google Patents

Process for removing heavy metal sulphides from aqueous systems

Info

Publication number
GB1516255A
GB1516255A GB3460376A GB3460376A GB1516255A GB 1516255 A GB1516255 A GB 1516255A GB 3460376 A GB3460376 A GB 3460376A GB 3460376 A GB3460376 A GB 3460376A GB 1516255 A GB1516255 A GB 1516255A
Authority
GB
United Kingdom
Prior art keywords
heavy metal
metal sulphides
aug
copolymers
aqueous systems
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.)
Expired
Application number
GB3460376A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB1516255A publication Critical patent/GB1516255A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C02F1/54—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using organic material

Landscapes

  • 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)
  • Removal Of Specific Substances (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

1516255 Treating aqueous waste to remove heavy metal sulphides BAYER AG 19 Aug 1976 [20 Aug 1975] 34603/76 Heading C1C Heavy metal sulphides are removed from industrial waste effluent containing from 5 to 10,000 ppm of heavy metal sulphides and having a pH of less than 2 and having a temperature of from 60 to 120‹C, by adding firstly an anionic polymer and secondly a cationic polymer to the effluent to agglomerate the heavy metal sulphides into stable, coarse flocs, and removing the flocs by filtration. The anionic and cationic polymers are preferably homopolymers and copolymers of derivatives of acrylic and methacrylic acid containing tertiary or quaternary amino groups, copolymers of acrylamide and dimethylamino-ethylmethacrylate, and vinyl polymers having carboxyl and/or sulphonic acid groups. Specified heavy metals are mercury, copper and molybdenum.
GB3460376A 1975-08-20 1976-08-19 Process for removing heavy metal sulphides from aqueous systems Expired GB1516255A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752536969 DE2536969A1 (en) 1975-08-20 1975-08-20 PROCESS FOR THE REMOVAL OF HEAVY METAL SULPHIDES FROM Aqueous SYSTEMS

Publications (1)

Publication Number Publication Date
GB1516255A true GB1516255A (en) 1978-06-28

Family

ID=5954347

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3460376A Expired GB1516255A (en) 1975-08-20 1976-08-19 Process for removing heavy metal sulphides from aqueous systems

Country Status (8)

Country Link
JP (1) JPS5225459A (en)
BE (1) BE845324A (en)
BR (1) BR7605452A (en)
DE (1) DE2536969A1 (en)
ES (1) ES450804A1 (en)
FR (1) FR2321457A1 (en)
GB (1) GB1516255A (en)
IT (1) IT1065147B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114088703A (en) * 2020-08-24 2022-02-25 台湾永光化学工业股份有限公司 Quick screening sleeve set and method for detecting activity of aluminum anode dye liquor

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3540107A1 (en) * 1985-11-12 1987-05-14 Klimsch & Co Contact copier for UV-sensitive material
JP4765146B2 (en) * 2000-07-03 2011-09-07 三菱瓦斯化学株式会社 Process for producing polyphenylene ether
CN114307692A (en) * 2022-02-23 2022-04-12 上海鲲谷环境科技有限公司 Method for removing cesium and strontium in nuclear wastewater

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3171804A (en) * 1961-10-16 1965-03-02 Archie H Rice Sewage and industrial waste purification process
US3259570A (en) * 1963-03-04 1966-07-05 Dow Chemical Co Dewatering aqueous suspensions of organic solids
US3418237A (en) * 1963-12-22 1968-12-24 American Cyanamid Co Settling of non-argillaceous ore pulps and mineral suspensions by use of water-soluble acrylic polymers
FR1452107A (en) * 1965-06-30 1966-02-25 Nalco Chemical Co New flocculants consisting of copolymeric substances
JPS4884461A (en) * 1972-02-12 1973-11-09

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114088703A (en) * 2020-08-24 2022-02-25 台湾永光化学工业股份有限公司 Quick screening sleeve set and method for detecting activity of aluminum anode dye liquor
CN114088703B (en) * 2020-08-24 2024-04-02 台湾永光化学工业股份有限公司 Quick screen set and method for detecting activity of aluminum anode dye liquor

Also Published As

Publication number Publication date
JPS5225459A (en) 1977-02-25
IT1065147B (en) 1985-02-25
DE2536969A1 (en) 1977-03-03
FR2321457A1 (en) 1977-03-18
BE845324A (en) 1977-02-21
ES450804A1 (en) 1977-08-16
BR7605452A (en) 1977-08-16

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee