Journal
REVIEWS IN ENVIRONMENTAL SCIENCE AND BIO-TECHNOLOGY
Volume 15, Issue 1, Pages 111-145Publisher
SPRINGER
DOI: 10.1007/s11157-015-9378-2
Keywords
Soil washing; Aminopolycarboxylates chelant agents; Process parameters; Soil characteristics; Heavy metals
Funding
- EU [2010-0009]
- Mediterranean Office for Youth (MOY) [2010/038]
- Universite Franco-Italienne
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The present paper analyzes literature data dealing with the use of aminopolycarboxylates for chemical washing of heavy metals contaminated soils. The aim is to rationalize and organize the up-to-date knowledge of process dependence on different parameters, in order to give a contribution to the development of washing protocols applicable for process optimization. Process efficiency is found to be dependent on i) parameters related to soil composition, ii) parameters related to contaminant characteristics and iii) operating parameters. The effect that each of them, according to the reviewed experimental studies, has on process efficiency, is highlighted, and the interdependence among them is presented as a key point to understand the overall removal mechanism and therefore to calibrate its application case-by-case.
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