Application of polycolloid-releasing substrate to remediate trichloroethylene-contaminated groundwater: A pilot-scale study.

Highlights: [•] A slow polycolloid-releasing substrate for continuous carbon supplement is developed. [•] The developed substrate contains vegetable oil, molasses, and two types of surfactants. [•] Addition of developed substrate can create anaerobic conditions. [•] Gene analysis is useful in evaluating the effectiveness of TCE biodegradation. [•] Complete TCE removal is obtained after injecting the slow polycolloid-releasing substrate. [ABSTRACT FROM AUTHOR]