Sequential Anaerobic/Aerobic Microbial Transformation of Chlorinated Ethenes: Use of Sustainable Approaches for Aquifer Decontamination

Chlorinated ethene contamination is a worldwide relevant health issue. In anaerobic aquifers, highly chlorinated ethenes are transformed by microbially-mediated organohalide respiration metabolism. For this reason, in the last few years, bioremediation interventions have been developed and employed situ for aquifer decontamination. Biostimulation has demonstrated to be efficient enhancing activity. The use of agrifood wastes that replace engineered substrates as biostimulants permits low carbon impact treatment part circular economy approach. present work depicts effects available bio-based discusses their efficiency on microbial communities when applied contaminated aquifers. As drawback respiration, there accumulation more toxic lower-chlorinated ethenes. However, compounds such dichloroethene (DCE) vinyl chloride (VC) can mineralized metabolic co-metabolic pathways aerobic conditions. sequential anaerobic/aerobic treatments proposed stimulate natural biotransformation activity achieve complete degradation aim provide an up-to-date revision transformation towards discuss application real scenarios futurable bioelectrochemical systems remediate