MY123469A - Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation - Google Patents

Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation

Info

Publication number
MY123469A
MY123469A MYPI99005789A MYPI9905789A MY123469A MY 123469 A MY123469 A MY 123469A MY PI99005789 A MYPI99005789 A MY PI99005789A MY PI9905789 A MYPI9905789 A MY PI9905789A MY 123469 A MY123469 A MY 123469A
Authority
MY
Malaysia
Prior art keywords
metal ions
enhancing
composition
precipitating metal
simultaneously precipitating
Prior art date
Application number
MYPI99005789A
Other languages
English (en)
Inventor
Kristine S Salmen
Angela S Kowalski
E H Kelle Zeiher
William J Ward
Original Assignee
Nalco Chemical Co
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 Nalco Chemical Co filed Critical Nalco Chemical Co
Publication of MY123469A publication Critical patent/MY123469A/en

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
    • C02F1/56—Macromolecular compounds
    • 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
    • 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
    • C02F2103/346—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 semiconductor processing, e.g. waste water from polishing of wafers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal

Landscapes

  • Organic Chemistry (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Removal Of Specific Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
MYPI99005789A 1999-01-15 1999-12-29 Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation MY123469A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23248599A 1999-01-15 1999-01-15

Publications (1)

Publication Number Publication Date
MY123469A true MY123469A (en) 2006-05-31

Family

ID=22873309

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI99005789A MY123469A (en) 1999-01-15 1999-12-29 Composition and method for simultaneously precipitating metal ions from semiconductor wastewater and enhancing microfilter operation

Country Status (10)

Country Link
US (2) US6258277B1 (https=)
EP (1) EP1171389B1 (https=)
JP (2) JP2002534564A (https=)
KR (1) KR20010101520A (https=)
CN (2) CN1978336B (https=)
AU (1) AU1929600A (https=)
DE (1) DE69941160D1 (https=)
MY (1) MY123469A (https=)
TW (1) TW508344B (https=)
WO (1) WO2000041974A1 (https=)

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US20100051553A1 (en) * 2008-08-29 2010-03-04 General Electric Company Method for removing mercury from wastewater and other liquid streams
US8945394B2 (en) 2009-10-27 2015-02-03 Soane Energy, Llc System, methods, processes and apparatus for removing finely dispersed particulate matter from a fluid stream
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Also Published As

Publication number Publication date
AU1929600A (en) 2000-08-01
EP1171389A1 (en) 2002-01-16
EP1171389B1 (en) 2009-07-22
US6403726B1 (en) 2002-06-11
JP5570458B2 (ja) 2014-08-13
EP1171389A4 (en) 2003-04-09
CN1978336B (zh) 2014-09-03
DE69941160D1 (de) 2009-09-03
CN1337923A (zh) 2002-02-27
TW508344B (en) 2002-11-01
KR20010101520A (ko) 2001-11-14
JP2002534564A (ja) 2002-10-15
JP2011117000A (ja) 2011-06-16
WO2000041974A1 (en) 2000-07-20
CN1978336A (zh) 2007-06-13
US6258277B1 (en) 2001-07-10

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