Sarwoko Mangkoedihardjo : Rice Husk for Bioremediation of Chromium (VI) Polluted Soil
Prof. Dr. Ir. Sarwoko Mangkoedihardjo MScES
The research investigated the capacity of rice husk for stimulating bioremediation of chromium polluted soil. Various levels of Cr (VI) polluted soil, ranging from 10 to 90 mg/Kg were amended with rice husk. The treated media composed of husk/soil ratio of 0.40 and 0.15. In the presence of C/N ratio of 70% higher than initial level, indigenous microbes grew up 3 times higher than their initial numbers during the first two weeks. At the same period, chromium removal increased sharply. Rice husk brought about increasing removal half time (t-50) for microbes and t-50 decreased for chromium removal.