Electrokinetic Remediation of Cadmium Contaminated Soil Using Zero Valant Iron Particle

 

Mahesh Rawat

M.Tech. Geotechnical Engineering Department of Civil Engineering, Motilal Nehru National Institute of Technology, Allahabad – 211 004, India
e-mail: rawat.m1@gmail.com

 

ABSTRACT

Electrokinetic remediation technique, ERT, has shown impressive results in soil remediation process. Several research and experimental work have been carried out to enhance the electrokinetic remediation process. There are certain enhancing technique has been developed like pH control, desorbing agent concentration, washings solution and use of zero valant iron particle as a permeable reactive barrier. Due to their minute size and higher surface area zero valant iron particle become highly reactive in ERT process. The use of iron particle as a permeable reactive barrier as shown remarkable result in enhancing the Electrokinetic remediation process.
The present paper deals with the use of zero-valant iron particle as a permeable reactive barrier and its effect on Ek process for cadmium contaminated soil. There are three experiment are conducted first soil is washed with distilled water and distilled was used as a purging solution, second soil is washed with distilled water and ammonium citrate was used as purging solution third soil is washed with distilled water, ammonium citrate was used as purging solution and a permeable reactive barriers of zero valant iron particle was created .result showed that with out use of zero valant iron powder 62% removal efficiency was recorded and with use ZVI as permeable reactive barrier 83% removal efficiency has been recorded.

Keywords: Electrokinetic remediation, zero-valant iron, permeable reactive barrier

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