RCEES OpenIR  > 土壤环境科学实验室
有机酸解吸土壤及矿物表面Cd的动力学特征
王代长; 蒋新; 贺纪正; 邓建才; 王慎阳; 饶伟
2007-11-15
Source Publication环境化学
Volume1Issue:6Pages:762-767
Abstract利用流动搅动法研究几种有机酸对土壤和矿物表面Cd的解吸动力学特征.结果表明,有机酸对Cd的解吸可能有质子的交换和溶解作用,以及有机配体与胶体表面对Cd的竞争作用.在40—50min内,红壤和针铁矿表面Cd的解吸达到稳态,而砖红壤和高岭土上并未达到稳态.柠檬酸、苹果酸、酒石酸和草酸对Cd的解吸率在红壤土上分别为86%,96%,93%和61%;在砖红壤上分别为86%,80%,69%和64%;在针铁矿上分别为94%,93%,86%和87%;在高岭土上分别为34%,41%,35%和42%.用双指数方程和一级动力学方程能更好地拟合Cd的解吸过程.不同有机酸解吸Cd的快反应速率常数为酒石酸、柠檬酸>苹果酸...
Department土壤环境科学实验室
Keyword有机酸 动力学 土壤 矿物
Document Type期刊论文
Identifierhttps://ir.rcees.ac.cn/handle/311016/10837
Collection土壤环境科学实验室
Recommended Citation
GB/T 7714
王代长,蒋新,贺纪正,等. 有机酸解吸土壤及矿物表面Cd的动力学特征[J]. 环境化学,2007,1(6):762-767.
APA 王代长,蒋新,贺纪正,邓建才,王慎阳,&饶伟.(2007).有机酸解吸土壤及矿物表面Cd的动力学特征.环境化学,1(6),762-767.
MLA 王代长,et al."有机酸解吸土壤及矿物表面Cd的动力学特征".环境化学 1.6(2007):762-767.
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