Influence of zeolite on heavy metal immobilization in municipal solid waste compost contaminated soil

The application of Municipal solid waste as compost (MSWC) in agricultural fields has become one the most common practices. Besides its benefits, it poses some harmful effects on soil, increases heavy metal content MSWC soil. It is necessary to find a way reduce bioavailability metals before into This study aimed at exploring efficiency zeolite an immobilizer dwindle bioavailability. An incubation experiment was conducted wherein soil samples were artificially spiked with different rates (0, 5, and 10 t ha-1). added 5 levels, namely 0, 10, 15, 20 %, their effect bioavailable status observed during intervals 15. 30, 60, 90, 120 days). Results unveiled that applying 10% significantly (P<0.05) reduced lead (Pb) nickel (Ni) Below detectable limit (Bdl) all samples. Furthermore, organic carbon also enriched by application. pH slightly increased (7.39) resulting immobilization metals. Hence, effective immobilizers eliminating Therefore, can be concluded mixing crop overload this highlights potential choice dwindling soil's content.