Using sequential HO addition to sustain 1,2-dichloroethane detoxification by a nanoscale zerovalent iron-induced Fenton's system at a natural pH.

1,2-dichloroethane (1,2-DCA) is a chlorinated hydrocarbon used for polyvinyl chloride plastic production. As such, 1,2-DCA is a common persistent contaminant in saturated zones. While nanoscale zerovalent iron (NZVI) is considered an effective reductant for removing a wide range of chlorinated hydrocarbons, 1,2-DCA is resistant to reduction by NZVI as well as by modified forms of NZVI (e.