Wastewater heavy metal detection and separation device

The utility model discloses a wastewater heavy metal detection and separation device which is characterized in that an adding module is arranged on a shell and is used for automatically adding a precipitant into an inner cavity of a reaction tank; comprising a weighing tank, a plurality of bulges, a weight sensor, a second electric valve and a plurality of material tanks, wherein the weighing tank is movably arranged in an inner cavity of a shell, and the bottom end of the weighing tank extends into an inner cavity of a reaction tank; the bulges are fixed on the inner wall of the shell in an annular array manner; the weight sensor is mounted at the top ends of the bulges; the feeding pipeline is fixed at the bottom end of the material tank and penetrates through the shell to extend into an inner cavity of the weighing tank, the third electric valve is installed on the feeding pipeline, the sealing shell is fixed on the outer side face of the shell, and the center control assembly is installed on the inner wal