EP 1175374 A1 20020130 - TREATMENT OF SOLUTIONS COMPRISING METALS, PHOSPHOROUS AND HEAVY METALS OBTAINED FROM DISSOLUTION OF COMBUSTED WASTE MATERIALS IN ORDER TO RECOVER METALS AND PHOSPHOROUS
Title (en)
TREATMENT OF SOLUTIONS COMPRISING METALS, PHOSPHOROUS AND HEAVY METALS OBTAINED FROM DISSOLUTION OF COMBUSTED WASTE MATERIALS IN ORDER TO RECOVER METALS AND PHOSPHOROUS
Title (de)
BEHANDLUNG VON AUS DER ABFALLVERBRENNUNG STAMMENDEN LÖSUNGEN MIT METALLEN, PHOSPOHOR UND SCHWERMETALLENZUR WIEDERGEWINNUNG VON METALLEN UND PHOSPHOR
Title (fr)
TRAITEMENT DES SOLUTIONS COMPRENANT DES METAUX, DU PHOSPHORE ET DES METAUX LOURDS ET OBTENUES PAR LA DISSOLUTION DE DECHETS BRULES VISANT LA RECUPERATION DES METAUX ET DU PHOSPHORE
Publication
Application
Priority
- DK 0000072 W 20000223
- DK PA199900243 A 19990223
Abstract (en)
[origin: WO0050343A2] The present invention relates to a method for treatment of a solution comprising ions of at least one metal selected from iron and aluminium, phosphorus ions and at least one heavy metal selected from lead, cadmium, chromium, copper, mercury, nickel and zinc ions, in order to recover ions the metal(s), phosphorus and heavy metal(s). The method comprises the following four steps performed in arbitrary (however preferably sequential) order: contacting said solution with a first cation exchange material; when the solution comprises HSO4-ions, contacting said solution with a first anion exchange material; contacting said solution with a second anion exchange material; contacting said solution with a second cation exchange material. The method is useful in large scale plants for treatment of combusted waste materials. Alternatively, the two anion contacting steps can be replaced by contacting with a nano-filtration material.
IPC 1-7
IPC 8 full level
CPC (source: EP)
C02F 1/42 (2013.01); C02F 1/442 (2013.01); C02F 1/66 (2013.01); C02F 2101/105 (2013.01); C02F 2101/20 (2013.01); C02F 2101/203 (2013.01); C02F 2101/22 (2013.01); C02F 2201/005 (2013.01); C02F 2303/16 (2013.01)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
WO 0050343 A2 20000831; WO 0050343 A3 20001207; AU 2658700 A 20000914; EP 1175374 A1 20020130
DOCDB simple family (application)
DK 0000072 W 20000223; AU 2658700 A 20000223; EP 00904864 A 20000223