铜、锌、铅和镉在淀山湖沉积物上的吸附特性  

Adsorption Characteristics of Cu, Zn, Pb and Cd in Dianshan Lake Sediments

作　　者：庄云龙[1] 石秀春[1] 

机构地区：[1]上海大学环境与化学工程学院,上海200072

出　　处：《上海大学学报（自然科学版）》2002年第6期526-529,共4页Journal of Shanghai University:Natural Science Edition

摘　　要：该文研究了铜、锌、铅和镉等四种重金属在淀山湖沉积物上的吸附特性,研究发现淀山湖沉积物对Cu、Zn、Pb和Cd的吸附符合Langmuir模型.沉积物对重金属饱和吸附量和重金属在沉积物-水两相中的分配系数的大小顺序均为Zn>Cu>Pb>Cd,表明锌和铜比铅和镉更容易迁移入沉积物.The adsorption characteristics of Cu, Zn, Pb and Cd on Dianshan Lake sediments are studied. The results of isothermal adsorption show that adsorption of these heavy metals on Dianshan Lake sediments accords with the Langmuir model. The order of both the amount of saturated adsorption and the partition coefficients between sediments and water for heavy metals are Zn>Cu>Pb>Cd. Therefore Zn and Cu transport into sediments more easily than Pb and Cd.

关 键 词：铜 锌 铅 镉 淀山湖 沉积物 吸附特性 

分 类 号：X131.2[环境科学与工程—环境科学]