摘要
为进一步完善污染场地控制与修复课程实验教学效果,自行设计了原位淋洗实验操作平台,以有机玻璃柱为模拟装置,以蠕动泵为流速控制单元,研究了不同实验条件下Cu^(2+)的淋洗去除效果,结果表明:淋洗剂种类是影响淋洗效果的重要因素,柠檬酸和EDTA2Na的淋洗效果都比较好,EDTA2Na的淋洗效果最好;淋洗流速在一定范围内上升,可以提高淋洗修复效果,但存在一个最适淋洗流速,超过该流速时,淋洗效果反而受制约;粗砂中Cu^(2+)的淋洗效果要优于细砂,说明介质粒径较大时利于Cu^(2+)的淋洗去除。
In order to improve the experimental teaching effect of the Contaminated Sites Control and Remediation course,the insitu leaching operating platform is designed.By using a selfdesigned plexiglass column as an analog device and the peristaltic pump as a velocity control unit,the leaching removal efficiency of Cu2+under different experimental conditions is studied.The results show that the eluent types are the important factors influencing the leaching effect,the citric acid and EDTA2Na have the better leaching effect,and the EDTA2Na has the best leaching effect.When the leaching velocity increases in a certain range,it can improve the leaching remediation effect.However,there is an optimum leaching velocity,and when this velocity is exceeded,the leaching effect is restrained.The leaching effect of Cu2+in the coarse sand is better than that in the fine sand,indicating that the larger particle size is beneficial to the leaching removal of Cu2+.
作者
白静
赵勇胜
秦传玉
Bai Jing;Zhao Yongsheng;Qin Chuanyu(Key Laboratory of Ministry of Education for Groundwater Resources and Environment,Jilin University, Changchun 130021, China)
出处
《实验技术与管理》
CAS
北大核心
2017年第11期39-41,95,共4页
Experimental Technology and Management
基金
国家自然科学基金项目"污染含水层原位空气扰动修复增强机理研究"(3A412S251425)
关键词
土壤污染修复
原位淋洗技术
CU+
实验教学
soil pollution remediation
insitu leaching technology
Cu2+
experimental teaching
