Sleeve type bioelectrochemical reactor for in-situ remediation of chlorinated hydrocarbon pollution of shallow groundwater

The invention relates to a sleeve type bioelectrochemical reactor for in-situ remediation of shallow groundwater polluted by chlorinated hydrocarbon, in particular to a bioelectrochemical reactor for in-situ remediation of shallow groundwater polluted by halogenated hydrocarbon. The bioelectrochemical dehalogenation technology is utilized, electrons are provided for dehalogenation breathing bacteria through the biological cathode, and completion of biological dehalogenation breathing is promoted, so that the problem that exogenous electron donors in underground water are insufficient is solved. A cathode of the reactor comprises a stainless steel cylinder with holes uniformly distributed in the surface and a carbon felt; the upper section of the bottom cylinder is of a straight cylinder structure, the lower section is of a conical cylinder structure, the upper edge of the bottom cylinder is connected with the stainless steel cylinder, and the check ball is located in the lower section of the bottom cylinder.