EP 2205367 A4 20131127 - METHOD, DECONTAMINANT AND CHEMICAL KIT FOR THE DECONTAMINATION OF MEDIA POLLUTED BY METALS AND HYDROPHOBIC ORGANIC COMPOUNDS
Title (en)
METHOD, DECONTAMINANT AND CHEMICAL KIT FOR THE DECONTAMINATION OF MEDIA POLLUTED BY METALS AND HYDROPHOBIC ORGANIC COMPOUNDS
Title (de)
VERFAHREN, DEKONTAMINIERENDES UND CHEMISCHES KIT ZUR DEKONTAMINIERUNG VON DURCH METALLE UND HYDROPHOBE ORGANISCHE VERBINDUNGEN VERSCHMUTZTEN MEDIEN
Title (fr)
PROCÉDÉ, DÉCONTAMINANT ET KIT CHIMIQUE POUR LA DÉCONTAMINATION DE MILIEUX POLLUÉS PAR DES MÉTAUX ET DES COMPOSÉS ORGANIQUES HYDROPHOBES
Publication
Application
Priority
- CA 2008001766 W 20081002
- CA 2605053 A 20071002
Abstract (en)
[origin: WO2009043177A1] The invention relates to a method for decontaminating a medium polluted by metals and hydrophobic organic compounds (COH), that comprises: (a) obtaining an acidic pulp from water, an acid, a chloride salt, a surfactant and the polluted medium; (b) making a floatation on the acidic pulp in order to form a COH-rich foam and a COH-depleted pulp; (c) recovering the foam; and (d) separating the depleted foam in order to obtain a processed solid and a liquid effluent rich in metal ions. The invention also relates to a decontaminant containing an acid, a chloride salt and a surfactant, and to a chemical kit for decontaminating a polluted medium, that comprises the decontaminant in which the acid, the chloride salt and the surfactant can be mixed with the polluted medium in the presence of water before removing a portion at least of the metals and of the COH from the polluted medium.
IPC 8 full level
B03B 9/02 (2006.01); B09C 1/02 (2006.01); B09C 1/04 (2006.01); B09C 1/08 (2006.01)
CPC (source: EP US)
B01D 1/24 (2013.01 - US); B01D 21/01 (2013.01 - US); B09C 1/02 (2013.01 - EP US); B09C 1/08 (2013.01 - EP US); C02F 1/24 (2013.01 - US); C02F 1/469 (2013.01 - US); C02F 1/52 (2013.01 - US); C02F 1/62 (2013.01 - US); C02F 1/66 (2013.01 - US); B03D 1/002 (2013.01 - US); B03D 1/14 (2013.01 - EP US); B03D 2201/007 (2013.01 - EP US); C02F 1/5227 (2013.01 - US); C02F 1/5236 (2013.01 - US); C02F 1/5245 (2013.01 - US)
Citation (search report)
- [XI] DE 4409605 A1 19951130 - WALTER REINGER RECYCLING UND E [DE], et al
- [XI] EP 0479258 A1 19920408 - ENSR CORP [US]
- [I] EP 0193109 A2 19860903 - HENKEL KGAA [DE]
- See references of WO 2009043177A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
CA 2605053 A1 20090402; CA 2701000 A1 20090409; CA 2701000 C 20160920; EP 2205367 A1 20100714; EP 2205367 A4 20131127; US 2011004043 A1 20110106; US 2013012752 A2 20130110; US 9073106 B2 20150707; WO 2009043177 A1 20090409
DOCDB simple family (application)
CA 2605053 A 20071002; CA 2008001766 W 20081002; CA 2701000 A 20081002; EP 08836146 A 20081002; US 68155408 A 20081002