STUDY ON THE REMEDIATION OF TEXTILE EFFLUENT CONTAMINATED SOIL USING ELECTROKINETIC AND BIOLOGICAL METHODSS.P. Jeyapriya and Shazli L.
Soil contamination is a major issue all around the globe due to improper disposal of wastes on the ground and the effluent discharged from the polluting industries. Controlling soil contamination or remediation of contaminated site has become a topic of interest of research in the recent past. In the present study, soil remediation by two different techniques namely Electrokinetic method and biological method were employed to remove the heavy metals from soil which was contaminated by the effluent discharged from a textile industry. In Electrokinetic method, three different electrolytic solutions were used namely tap water, EDTA and Citric acid for a selected retention time of 4 hours and 8 hours. Results showed that Citric acid is efficient in the removal of Cr, Cu and Pb whereas EDTA is effective in the removal of Zn. Use of Reactive peat moss barrier, a biological method was also used to study the mobility and sorption of heavy metals for varying periods such as 7 days, 14 days, 30 days and 60 days. Peat moss barrier due to its high organic content is capable of decontaminating the heavy metals. The barrier used in the experimental study removed 46% of Cr and 44% of Pb in a contact time of 60 days.
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