Transport of green rust and biochar mixtures in porous media for in-situ remediation of chlorinated ethylenes.

Composite materials consisting of green rust (GR) and bone char (BC) have proven effective for reductive dechlorination of chlorinated solvents and could be used in the remediation of contaminated aquifers by injection of the materials. However, the injection of the materials is complex because successful dechlorination requires contact between the two types of particles post-injection. In this study, the transport and retention properties of GR and BC mixtures were investigated and improved in a series of sand column experiments and the data were used for development of a transport model.