首页 | 本学科首页   官方微博 | 高级检索  
   检索      


Improving the Electrokinetic Remediation of Nickel-, Cadmium-, and Lead-contaminated Sediment
Authors:Ljiljana Rajić  BožO Dalmacija  Svetlana Ugarčina Perović  Vesna Pešić  Milena Dalmacija  Mile Klašnja
Institution:1. University of Novi Sad Faculty of Sciences , Novi Sad , Republic of Serbia;2. University of Novi Sad Faculty of Technology , Novi Sad , Republic of Serbia
Abstract:In this work, the simultaneous application of bipolar electrodes and a longer cathodic compartment length without agents addition was used as an enhanced electrokinetic treatment of Ni-, Cd-, and Pb-contaminated sediment. Conventional and enhanced treatments were investigated and their efficacy assessed by comparing the residual metals content in the sediment with values given by Dutch standards. After conventional treatment removals of 20%, 19%, and 31% for Ni, Cd, and Pb were achieved, whereas the enhanced treatment achieved removal efficacies of 36% for Ni, 42% for Cd, and 43% for Pb. Results indicate that the simultaneous application of the techniques mentioned is effective for removing Ni and Pb whereas Cd was not removed to the desired level. Here we show that the addition of chemicals is not necessary to increase the efficacies of electrokinetic sediment treatments, so the simultaneous application of the techniques mentioned can be described as environmentally friendly.
Keywords:Bipolar electrodes  cathodic compartment  electrokinetics  heavy metals
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号