Virkutyt Jurate, Sillanpää Mika, Latostenmaa Petri
University of Oulu, Water Resources and Environmental Engineering Laboratory, Finland.
Sci Total Environ. 2002 Apr 22;289(1-3):97-121. doi: 10.1016/s0048-9697(01)01027-0.
In recent years, there has been increasing interest in finding new and innovative solutions for the efficient removal of contaminants from soils to solve groundwater, as well as soil, pollution. The objective of this review is to examine several alternative soil-remediating technologies, with respect to heavy metal remediation, pointing out their strengths and drawbacks and placing an emphasis on electrokinetic soil remediation technology. In addition, the review presents detailed theoretical aspects, design and operational considerations of electrokinetic soil-remediation variables, which are most important in efficient process application, as well as the advantages over other technologies and obstacles to overcome. The review discusses possibilities of removing selected heavy metal contaminants from clay and sandy soils, both saturated and unsaturated. It also gives selected efficiency rates for heavy metal removal, the dependence of these rates on soil variables, and operational conditions, as well as a cost-benefit analysis. Finally, several emerging in situ electrokinetic soil remediation technologies, such as Lasagna, Elektro-Klean, electrobioremediation, etc., are reviewed, and their advantages, disadvantages and possibilities in full-scale commercial applications are examined.
近年来，人们对寻找新的创新解决方案以高效去除土壤中的污染物来解决地下水及土壤污染的兴趣与日俱增。本综述的目的是考察几种用于重金属修复的替代性土壤修复技术，指出它们的优缺点，并着重介绍电动土壤修复技术。此外，该综述还阐述了电动土壤修复变量的详细理论方面、设计和操作考量，这些变量在高效工艺应用中最为重要，同时还介绍了其相对于其他技术的优势以及需克服的障碍。该综述讨论了从饱和及非饱和的黏土和砂土中去除选定重金属污染物的可能性。它还给出了选定的重金属去除效率、这些效率对土壤变量和操作条件的依赖性，以及成本效益分析。最后，对几种新兴的原位电动土壤修复技术，如“千层面”技术、“电清洁”技术、电生物修复等进行了综述，并考察了它们在大规模商业应用中的优缺点及可能性。
