Recovery of copper from contaminated soil by flushing.
In this work the development of a process for the recovery of copper from contaminated industrial soils is presented. Experimental tests on a standard soil contaminated with a solution of copper chloride were carried out. The metal was extracted from the contaminated soil by flushing with a 0.1 M aqueous solution of an ethylenediaminetetraacetic acid (EDTA) sodium salt. A maximum copper extraction efficiency of about 60% was observed. Copper was then separated from the extracted solution by precipitation with sodium hydroxide after addition of ferric sulfate.
Di Palma
L
L
Dipartimento di Ingegneria Chimica, dei Materiali, delle Materie Prime e Metallurgia, Universitá di Roma La Sapienza, Italy. luca.di.palma@ingchim.ing.uniroma1.it
Medici
F
F
D002614:Chelating Agents / Q000737:chemistry; D003300:Copper / Q000302:isolation & purification*; D004492:Edetic Acid / Q000737:chemistry; D007220:Industrial Waste; D012989:Soil Pollutants / Q000302:isolation & purification*
D002614:Chelating Agents; D007220:Industrial Waste; D012989:Soil Pollutants; D003300:Copper; D004492:Edetic Acid