A NOVEL TREATMENT TRAIN FOR REMEDIATION OF PAH CONTAMINATED SOILS

Present study investigated the use of a novel two-unit treatment train for remediation of an industrially contaminated soil containing Polyc ylic Aromatic Hydrocarbons (PAH). The first unit of the treatment trai n involved soil washing using micellar solution of a nonionic surfacta nt, aiding contaminant transfer from soil matrix into the liquid phase , for enhanced bioavailability. The second unit employed remediation o f the leachate contaminants using Acinetobacter Sp, under completely m ixed conditions, with nutrients and oxygen amendment. Under single was h, minimal surfactant concentration, and short mixing time conditions, removal efficiency of eighty-to-hundred percent was achieved for all contaminants using bioremediation.