GB786647A - Improvements in or relating to the purification of water - Google Patents

Improvements in or relating to the purification of water

Info

Publication number
GB786647A
GB786647A GB2188/55A GB218855A GB786647A GB 786647 A GB786647 A GB 786647A GB 2188/55 A GB2188/55 A GB 2188/55A GB 218855 A GB218855 A GB 218855A GB 786647 A GB786647 A GB 786647A
Authority
GB
United Kingdom
Prior art keywords
water
tri
commercial
calcium orthophosphate
calcium
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
GB2188/55A
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.)
ROBERT BALLANTYNE ADAMSON
Original Assignee
ROBERT BALLANTYNE ADAMSON
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 ROBERT BALLANTYNE ADAMSON filed Critical ROBERT BALLANTYNE ADAMSON
Priority to GB2188/55A priority Critical patent/GB786647A/en
Publication of GB786647A publication Critical patent/GB786647A/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
    • 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
    • C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
    • 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
    • C02F1/02—Treatment of water, waste water, or sewage by heating
    • 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
    • C02F2101/12—Halogens or halogen-containing compounds
    • C02F2101/14—Fluorine or fluorine-containing compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage

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)
  • Removal Of Specific Substances (AREA)

Abstract

To remove fluorides dissolved therein, water is subjected to treatment at a temperature of 50 DEG C. or more with tri-calcium orthophosphate, and calcium carbonate and/or magnesium carbonate. The reagents may be added to the water either singly or together. When the water to be treated is alkaline, or becomes so on boiling, ammonium chloride may be added to the reacting substances. The treated water may be passed subsequently to a conventional water filter. In one example fluoride-containing water was boiled for a quarter-of-an-hour with commercial-grade tri-calcium orthophosphate and powdered marble chips. In another example the same procedure was followed, with the addition of commercial-grade ammonium chloride to the reactants. For the tri-calcium orthophosphate there may be substituted any material or materials which can produce it under the conditions of the process. The process may be used in addition to any conventional water-purification process.
GB2188/55A 1955-01-25 1955-01-25 Improvements in or relating to the purification of water Expired GB786647A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2188/55A GB786647A (en) 1955-01-25 1955-01-25 Improvements in or relating to the purification of water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2188/55A GB786647A (en) 1955-01-25 1955-01-25 Improvements in or relating to the purification of water

Publications (1)

Publication Number Publication Date
GB786647A true GB786647A (en) 1957-11-20

Family

ID=9735128

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2188/55A Expired GB786647A (en) 1955-01-25 1955-01-25 Improvements in or relating to the purification of water

Country Status (1)

Country Link
GB (1) GB786647A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125781A (en) * 1982-08-20 1984-03-14 Kenneth Stephen Butler Water defluorinating bags
CN102126776A (en) * 2011-01-14 2011-07-20 广西大学 Method for removing fluorions from mineral water by using food grade alkaline magnesium carbonate
US8470181B2 (en) 2007-06-15 2013-06-25 Omya Development Ag Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment
US8728322B2 (en) 2007-03-21 2014-05-20 Omya International Ag Process for the purification of water using surface treated calcium carbonate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2125781A (en) * 1982-08-20 1984-03-14 Kenneth Stephen Butler Water defluorinating bags
US8728322B2 (en) 2007-03-21 2014-05-20 Omya International Ag Process for the purification of water using surface treated calcium carbonate
US9745212B2 (en) 2007-03-21 2017-08-29 Omya International Ag Surface-reacted calcium carbonate and its use in waste water treatment
US8470181B2 (en) 2007-06-15 2013-06-25 Omya Development Ag Surface-reacted calcium carbonate in combination with hydrophobic adsorbent for water treatment
CN102126776A (en) * 2011-01-14 2011-07-20 广西大学 Method for removing fluorions from mineral water by using food grade alkaline magnesium carbonate

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