摘要
通过单一Pb^(2+)迁移试验和Pb^(2+)、Cu^(2+)的竞争、顺序迁移试验来研究Pb^(2+)在高岭土中迁移时的吸附特性。对迁移试验的结果进行分析,表明Pb^(2+)刚穿透土柱所需的时间随离子浓度的增大而减少,随溶液pH的增大而增大;Pb^(2+)和Cu^(2+)竞争迁移会使得Pb^(2+)刚刚穿透土柱所需的时间、各深度土样对Pb^(2+)的吸附量都减少;竞争迁移时的穿透时间比单一Pb^(2+)迁移的穿透时间减少了0.11倍;顺序迁移会使得Pb^(2+)穿透土柱所需的时间和各深度土样对其的吸附量都减小,并且时间和吸附量减小的幅度与竞争迁移时十分接近。
The adsorption characteristics of Pb^(2+)in kaolin were studied by single Pb^(2+)migration test, competitive and sequential migration test of Pb^(2+)and Cu^(2+).The competitive and sequential migration experiments of Cu^(2+)and Pb^(2+)were conducted, and the results of Batch experiment were compared and analyzed.The analysis of the transfer test shows that the time required for Pb^(2+)to penetrate the soil column decreases with increasing ion concentration and increases with solution pH;Pb^(2+)and Cu^(2+)reduce the time required for Pb^(2+)to penetrate the soil column and the penetration time decreases 0.11 times than a single Pb^(2+)movement;the time and the time and absorption amount are very close to the simultaneous migration.
作者
王安
艾英钵
曹炜炜
范志浩
WANG An;AI Yingbo;CAO Weiwei;FAN Zhihao(Geotechnical Research Institute,Hohai University,Nanjing 210098,China)
出处
《粉煤灰综合利用》
CAS
2022年第1期32-38,共7页
Fly Ash Comprehensive Utilization
基金
中央高校基本科研业务费专项资金项目(2015B17714)。
