Effect of dissolved organic matter on adsorption and desorption
of mercury by soils |
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| Authors: | YANG Yongkui LIANG Li and WANG Dingyong |
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| Institution: | 1. College of Resources and Environment, Southwest University, Chongqing 400716, China
2. College of Resources and Environment, Southwest University, Chongqing 400716, China;Chongqing Key Lab of Agricultural Resources and Environment, Chongqing 400716, China |
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| Abstract: | Effects of dissolved organic matter (DOM) on adsorption and desorption of Hg were investigated in two kinds of soils, Xanthi-Udic Ferralosols (XUF) and Typic Purpli-Udic Cambosols (TPUC). The DOM was obtained from humus soil (DOMH), rice straw (DOMR), and pig manure (DOMP). The presence of DOM obviously reduced Hg maximum adsorption capacity with up to 40% decreases over the control, being an order of DOMH (250.00 mg/kg) (270.27 mg/kg) < DOM<,R> (312.50 mg/kg)
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| Keywords: | mercury (Hg) dissolved organic matter (DOM) adsorption desorption |
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