Progress in the Effect of Dissolved Organic Matter on Adsorption of Heavy Metals by Soil
Dissolved organic matter（DOM） can be served as the ＂carrier＂ or ＂ligand＂ of heavy metals migration because it has many function groups such as carboxyl,hydroxyl,carbonyl and methoxy.DOM can promote or inhibit adsorption of heavy metals by soil through a series of reactions between DOM and heavy metals such as ion exchange,complexing and chelation,which will affect precipitation,migration/transformation and bioavailability of heavy metals,and further affect the ecological environment security and human health.This paper summarized the sources,extraction and composition of DOM in details,and reviewed the progress of research on the effect and mechanism of DOM on heavy metals adsorption by soil.
NETL
NSTL
万方数据
维普
