چکیده مقاله
The mix contamination presents a particularly difficult task for soil remediation The objective of research was to find a method to cleanup mixed contaminated clayey soils Clayey soil, contaminated with lead and nickel heavy metals and phenanthrene PAH , was subjected to simultaneous removal using a multifunctional electrokinetic system The electrokinetic surfactant supply system was applied to mobilize, transport and remove phenanthrene A chelation agent EDTA was also electrokinetically supplied to mobilize heavy metals The mixed contaminated clayey soil was subjected to low DC voltage gradient Conditioning liquids surfactant and EDTA were introduced in different periods of time 22 days, 42 days in order to optimize the most excessive removal of contaminants The pH, electrical parameters, volume supplied, and volume discharged was monitored continuously during lab experiments At the end of tests soil and cathalyte were subjected to physico chemical analysis Results showed that the optimal average simultaneous removal was 85 % for lead, 84 % for nickel, and 74 % for phenanthrene The highest local removals achieved for lead, nickel and phenanthrene were 96 %, 95 %, and 84 % respectively The results of this study can be applied for in situ remediation of clayey sites contaminated with petroleum products and heavy metals
کلیدواژهها
نویسندگان
Mansour Hakimipour
Department of Building, Civil and Environmental Engineering, Concordia University, Montreal H۳G ۱M۸, Canada
Maria Elektorowicz
Department of Building, Civil and Environmental Engineering, Concordia University, Montreal H۳G ۱M۸
شیوه ارجاع
Hakimipour, Mansour and Elektorowicz, Maria,1382,Electrokinetic Soil Remediation Method for Mix Contaminated Soil,6th International Conference on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات ششمین کنفرانس بین المللی مهندسی عمران15 اردیبهشت 1382 · اصفهان