Evaluation of biodegradable plastics as solid hydrogen donors for the reductive dechlorination of fthalide by Dehalobacter species

► A starch-based plastic (SP) functioned as an H2 donor for microbial dechlorination. ► Newly isolated Clostridium sp. Ma13 transferred H2 from SP to a dechlorinator. ► SP exhibited significantly more efficient H2 transfer to dechlorinators than lactate.