GB827586A - Improvements in or relating to the treatment of water - Google Patents

Improvements in or relating to the treatment of water

Info

Publication number
GB827586A
GB827586A GB745655A GB745655A GB827586A GB 827586 A GB827586 A GB 827586A GB 745655 A GB745655 A GB 745655A GB 745655 A GB745655 A GB 745655A GB 827586 A GB827586 A GB 827586A
Authority
GB
United Kingdom
Prior art keywords
sol
produced
sulphate
adjusting
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.)
Expired
Application number
GB745655A
Inventor
Norman John Pugh
Geoffrey James Holland
Roy Yearsley Bromell
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.)
Water Research Association
Original Assignee
Water Research Association
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 Water Research Association filed Critical Water Research Association
Priority to GB745655A priority Critical patent/GB827586A/en
Publication of GB827586A publication Critical patent/GB827586A/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
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Silicon Compounds (AREA)

Abstract

A sol for use in the purification of an aqueous liquid is produced by admixing separate aqueous streams of sodium silicate and a metal salt, e.g. aluminium sulphate, ferrous sulphate, or ferric chloride by means of rotary paddles, or a pump or impeller. The pH of the sol produced may be 5.5-8.5, and is preferably 7-8. The apparatus (not shown) comprises means for adjusting the flow of each solution to a desired value and for adjusting the retention time of the sol before use. The sol may contain 0.8-1.2% of silica. An example is given.ALSO:A sol produced by admixing separate aqueous streams of sodium silicate and a metal salt, e.g. aluminium sulphate, ferrous sulphate, or ferric chloride (see Group III) is added to an aqueous liquid as a coagulant aid. 0,4-2,6 parts of SiO2 per million parts of water may be employed. The sol may be added between two successive additions of coagulant.
GB745655A 1955-03-15 1955-03-15 Improvements in or relating to the treatment of water Expired GB827586A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB745655A GB827586A (en) 1955-03-15 1955-03-15 Improvements in or relating to the treatment of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB745655A GB827586A (en) 1955-03-15 1955-03-15 Improvements in or relating to the treatment of water

Publications (1)

Publication Number Publication Date
GB827586A true GB827586A (en) 1960-02-10

Family

ID=9833444

Family Applications (1)

Application Number Title Priority Date Filing Date
GB745655A Expired GB827586A (en) 1955-03-15 1955-03-15 Improvements in or relating to the treatment of water

Country Status (1)

Country Link
GB (1) GB827586A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003440A2 (en) * 1989-09-04 1991-03-21 Henkel Kommanditgesellschaft Auf Aktien Process for homogenizing or separating liquid manure
US5279807A (en) * 1992-05-26 1994-01-18 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polysilicate microgels
US5503820A (en) * 1992-05-26 1996-04-02 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polysilicate microgels
US5648055A (en) * 1992-05-26 1997-07-15 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polyaluminosilicate microgels
US5853616A (en) * 1992-05-26 1998-12-29 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polyaluminosilicate microgels
US5980836A (en) * 1992-05-26 1999-11-09 E. I. Du Pont De Nemours And Company Apparatus for preparing low-concentration polyaluminosilicate microgels
WO2011121619A1 (en) * 2010-03-29 2011-10-06 Abb S.P.A. Water treatment process for oil and gas fields produced water

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991003440A2 (en) * 1989-09-04 1991-03-21 Henkel Kommanditgesellschaft Auf Aktien Process for homogenizing or separating liquid manure
WO1991003440A3 (en) * 1989-09-04 1991-05-02 Henkel Kgaa Process for homogenizing or separating liquid manure
US5279807A (en) * 1992-05-26 1994-01-18 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polysilicate microgels
US5312595A (en) * 1992-05-26 1994-05-17 E. I. Du Pont De Nemours And Company Method and apparatus for preparing low-concentration polysilicate microgels
US5503820A (en) * 1992-05-26 1996-04-02 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polysilicate microgels
US5648055A (en) * 1992-05-26 1997-07-15 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polyaluminosilicate microgels
US5853616A (en) * 1992-05-26 1998-12-29 E. I. Du Pont De Nemours And Company Method for preparing low-concentration polyaluminosilicate microgels
US5980836A (en) * 1992-05-26 1999-11-09 E. I. Du Pont De Nemours And Company Apparatus for preparing low-concentration polyaluminosilicate microgels
WO2011121619A1 (en) * 2010-03-29 2011-10-06 Abb S.P.A. Water treatment process for oil and gas fields produced water

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