Deposition of Fe And Mn in Two Subtropical Soils and Their Adsorption Characteristics of Pb2+ and Cd2+
The characteristics of the leaching and deposition of iron and manganese in the yellow-brown soil and brown-red soil of subtropical area were studied using soil columns leached by the mixed solution of iron and manganese (0-0.04 mol L-1),and their isothermal adsorptions to Pb2+ and Cd2+ by the leached soils were studied in batch experiments.The results were as follows:after soils were leached in the columns,manganese deposited 0.24-1.17mg/g more in yellow brown soils than those in brown red soils,and the contents of free iron and amorphous iron were significantly higher than those of manganese oxides in the samples.The maximum adsorption capacities to Pb2+ and Cd2+ of leached soil samples were higher than those of the soils not leached,and the increased maximum was up to 33.07mmol/kg.
yellow-brown soil brown-red soil iron and manganese oxides deposition pb2+ Cd2+ isothermal adsorption
TANG Fan HUANG Li LIU Fan
Key Laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtze River),Ministry of Agriculture,Huazhong Agricultural University,P.R.China,430070
国际会议
3rd International Conference on Pollution Ecology(第三届污染生态学国际会议(3rd ICPE))
天津
英文
58-59
2012-11-06（万方平台首次上网日期，不代表论文的发表时间）