An Integrated Cadmium Extraction System (ICES) effective reduction of cadmium in the soil for bench-scale and field study application

Case Studies in Chemical and Environmental Engineering

Paul Aiken¹  Da-Vaugh Sanderson²  Kolapo Alli² 

[1] Corresponding author.;Faculty of Engineering, The University of the West Indies, Mona Campus, Kingston 7, Jamaica;

关键词: Heavy metal;    Remediation;    Soil;    Electrokinetics;   

DOI  :  

来源: DOAJ

【 摘 要 】

High levels of naturally occurring Cadmium (Cd) in soils in Jamaica have been a burden in recent decades. The parish of Manchester reported the highest Cd levels. A study was carried out in the northern community of Devon as it was well known for soils with high Cd levels. An innovative Integrated Cadmium Extraction System (ICES) was developed for the remediation of Cd contaminated soil in a pot and a field study. Both studies were carried out over 42 days consecutively, starting with the pot study. The removal efficiencies of Cd obtained by the ICES were 47.01% and 43.43% for pot and field studies, respectively. The removal efficiencies are promising and are an indication that it is feasible to upscale ICES from bench-scale studies to field application. During the pot study, electrokinetic (EKR) and soil solution extractor (SSE) were used to treat soil placed in two separate pots. The residual Cd level in the soil at the end of the pot study was in the order of SSE ​> ​EKR ​> ​ICES for the soil treatment techniques used.

【 授权许可】

Unknown