Recovery of heavy metals from aq. effluents

Process for recovering heavy metals contained in aq. effluents using a polymer (I) / complexing agent (II) system in which the (I) is chosen from opt. substd. polyaniline, opt. substd. poly(paraphenylene-vinylidene), opt. substd. poly p-phenylenes, opt. substd. polyfuran and opt. substd. polypyrrole...

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Bibliographische Detailangaben
Hauptverfasser:	TEDJAR FAROUK, GENIES EUGENE
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	Process for recovering heavy metals contained in aq. effluents using a polymer (I) / complexing agent (II) system in which the (I) is chosen from opt. substd. polyaniline, opt. substd. poly(paraphenylene-vinylidene), opt. substd. poly p-phenylenes, opt. substd. polyfuran and opt. substd. polypyrrole, and the (II) is chosen from ethylenediamine, 1,10-phenanthroline, triaminotriethylamine, triethylenetriamine, tetraethylenepentamine, glycine, ethylenediaminetetraacetic acid (EDTA), ethylene glycol bis ( beta aminoethyl-ether) N,N-tetraacetic acid (EGTA) and dimethyl glyoxime (DSM). L'invention concerne un procédé de récupération des métaux contenus dans les effluents aqueux par fixation sur une colonne d'échange 1 suivie d'une étape de décomplexation 4 et d'une électrolyse 6.