Title : ( Evaluation of the Efficiency of Nanoscale Zero-Valent Iron (nZVI) to Stabilize Heavy Metals in a Calcareous Soil )
Authors: , Amir Fotovat , Reza Khorassani ,
Full TextAbstract
The effect of iron compounds including micrometric zero-valent iron (ZVI), nanoscale zero-valent iron (nZVI), micrometric iron oxide (IOx) and nanoscale iron oxides (nIOx) and incubation times in changing the availability of heavy metals was evaluated in a calcareous soil contaminated to Cd, Zn, Pb, and Ni. Results showed that DTPA extractable heavy metals significantly decreased in soil treated with ZVI, compared to untreated soil. The mean removal efficiency of Ni, Cd, Zn and Pb was 28%, 32%, 37% and 28% for ZVI and 12%, 0%, 25% and 21% for nZVI, respectively. In contrast, presence of iron oxides caused significant increase of DTPA extractable heavy metals in soil except for Ni. Moreover, Ni-DTPA decreased significantly with time whereas it was constant for the other examined elements. In this study, the observed capacity for heavy metals removal by ZVI was higher than other treatments whereas the stabilization efficiency of nZVI was not significant in the soil.
Keywords
, Heavy metals, Iron oxide, nanoscale Zero-valent iron (nZVI), Stabilization
@inproceedings{paperid:1023147,
author = {, and Fotovat, Amir and Khorassani, Reza},
title = {Evaluation of the Efficiency of Nanoscale Zero-Valent Iron (nZVI) to Stabilize Heavy Metals in a Calcareous Soil},
booktitle = {11th International Conference on the Biogeochemistry of Trace Elements},
year = {2011},
location = {فلورانس, ITALY},
keywords = {Heavy metals; Iron oxide; nanoscale Zero-valent iron (nZVI); Stabilization},
}
%0 Conference Proceedings
%T Evaluation of the Efficiency of Nanoscale Zero-Valent Iron (nZVI) to Stabilize Heavy Metals in a Calcareous Soil
%A ,
%A Fotovat, Amir
%A Khorassani, Reza
%J 11th International Conference on the Biogeochemistry of Trace Elements
%D 2011
