Sarwoko Mangkoedihardjo : Compost as biocarrier for remediation of lead polluted soil
Prof. Dr. Ir. Sarwoko Mangkoedihardjo MScES
This research investigated the ability of compost in which microbes augmented lead removal from soil. Various levels of lead polluted soil, ranging from 10 to 70 mg-Pb/Kg-soil were amended with compost. Microbial species in compost and polluted soil were identified. Criteria for effective removal of lead were half time for 50% lead removal and 50% microbial elimination (t-50). Initial concentration of lead in soil for the half time, the so called initial concentration time fifty (ICT-50) was a novel criterion to assess the maximum lead concentration initially present in soil. ICT-50 of 35 mg-Pb/Kg-soil could be treated by compost addition of more than the weight of polluted soil.