EP 0701536 A1 19960320 - WATER PURIFICATION COMPOSITION AND ITS USE
Title (en)
WATER PURIFICATION COMPOSITION AND ITS USE
Title (de)
WASSERREINIGUNGSZUSAMMENSETZUNG UND DEREN VERWENDUNG
Title (fr)
COMPOSITION DE PURIFICATION D'EAU ET SON UTILISATION
Publication
Application
Priority
- SE 9400485 W 19940524
- SE 9301775 A 19930525
Abstract (en)
[origin: WO9427917A1] A water purification composition is disclosed, which comprises an aqueous solution of (A) an alkali metal or alkaline earth metal hydroxide, (B) an alkali metal or ammonium sulphide or sodium, potassium or calcium polysulphides, (C) an alkali metal disulphite, (D) an alkali metal dithionite, and (E) an alkali or alkaline earth metal thiosulphate or ammonium thiosulphate. The composition is used for the treatment of polluted water containing heavy metal ions, e.g. polluted scrubber water from the purification according to the wet method of flue gases from refuse incineration.
IPC 1-7
IPC 8 full level
C02F 1/52 (2006.01)
CPC (source: EP)
C02F 1/5236 (2013.01); C02F 2103/18 (2013.01)
Citation (search report)
See references of WO 9427917A1
Designated contracting state (EPC)
DE DK FR GB
DOCDB simple family (publication)
WO 9427917 A1 19941208; EP 0701536 A1 19960320; SE 501569 C2 19950313; SE 9301775 D0 19930525; SE 9301775 L 19941126
DOCDB simple family (application)
SE 9400485 W 19940524; EP 94917236 A 19940524; SE 9301775 A 19930525