GB190906935A - Improvements in or relating to the Purification of Water. - Google Patents

Improvements in or relating to the Purification of Water.

Info

Publication number
GB190906935A
GB190906935A GB190906935DA GB190906935A GB 190906935 A GB190906935 A GB 190906935A GB 190906935D A GB190906935D A GB 190906935DA GB 190906935 A GB190906935 A GB 190906935A
Authority
GB
United Kingdom
Prior art keywords
water
soda
acid
dried
sodium phosphate
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
Inventor
Ernest Edward Munro Payne
William Henry Staynes
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of GB190906935A publication Critical patent/GB190906935A/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
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/02—Softening water by precipitation of the hardness

Abstract

6935. Payne, E. E. M., and Staynes, W. H. March 23. Liquids, purifying.-Permanent hardness is removed from water by the addition of tri-sodium phosphate with sufficient caustic soda to combine with the carbonic acid present in the water as such or in the form of acid carbonates. The precipitant may be prepared by mixing common phosphate of soda with an excess of caustic soda, the mixture being dissolved in hot water. The precipitate is run on to a draining or filter bed, and is air-dried or dried in an evaporating-pan. It may be used as manure, or treated with acid to obtain superphospbates or phosphoric acid, from which sodium phosphate for further use may be obtained by treatment with soda-ash. The sodium salts may be replaced by the similar salts of potassium or ammonium.
GB190906935D 1909-03-23 1909-03-23 Improvements in or relating to the Purification of Water. Expired GB190906935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB190906935T 1909-03-23

Publications (1)

Publication Number Publication Date
GB190906935A true GB190906935A (en) 1909-09-16

Family

ID=32490698

Family Applications (1)

Application Number Title Priority Date Filing Date
GB190906935D Expired GB190906935A (en) 1909-03-23 1909-03-23 Improvements in or relating to the Purification of Water.

Country Status (1)

Country Link
GB (1) GB190906935A (en)

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