Efficiency of co-composting process to remove genotoxicity from sewage sludge contaminated with hexavalent chromium

摘要

This study focuses mainly on the genotoxicity of sewage sludge contaminated with hexavalent chromium (Cr(VI)). The effect was assessed by the micronucleus (MN) induction in Vicia faba roots, after exposure to solid co-composting matrix and aqueous extracts. Two different concentrations of co-composting of sewage sludge/palm waste were tested: mixture A: 1/3 sludge + 2/3 palm waste and mixture B:1/2 sludge + 1/2 palm waste.