摘要
文章研究电压、修复时间,添加新型绿色络合剂-PASP和缓冲液对电动修复实验效果的影响。结果表明,升高电压和加长修复时间都能提高Cd的迁移率。随络合剂浓度由2g/L升高到4g/L,阳极附近的迁移率由68.8%提高到78.5%,实验中在阴极加入醋酸后,阴极附近Cd的迁移率升高了12.3%,说明添加络合剂和醋酸可以提高修复效果。
The aim of the research was to investigate the influence of the voltage, experiment time, the complexant and buffer solution to the electrokinetic rcmediation experiment＇s results. It indicated that raising the voltage and prolonging the experiment time could improve the results of the remediation. The migration rate was improved from 68.8 % to 78,5 % in the vicinity of anode as the concentration of PASP was enhanced from 2 g/L to 4 g/L. The migration rate of Cd was also improved by 12.3 % in the vicinity of cathode while acetic acid was used in the experiment, which showed the PASP and acetic acid have played an important role of improving the results of remediation in this experiment.
出处
《广东化工》
CAS
2009年第8期6-7,62,共3页
Guangdong Chemical Industry
基金
上海市科委"世博专项"资助课题(05dz05816)
关键词
CD污染土壤
电动修复
PASP(聚天冬氨酸)
醋酸
cadmium contaminated soils
electrokinetic remediation
PASP（Polyaspartic acid）
acetic acid
