Multistage purification magnetic separation heavy metal wastewater treatment system

The utility model discloses a multistage purification magnetic separation heavy metal wastewater treatment system which comprises a reaction system, a dosing system, a magnetic separation system, a magnetic recovery system and a sludge drying system, the reaction system is communicated with a sewage inlet pipe and is communicated with the magnetic separation system, the reaction system is connected with the dosing system, and the magnetic recovery system is connected with the sludge drying system. The magnetic separation system is communicated with the magnetic recovery system, the magnetic recovery system comprises a high-speed shearing machine, a magnetic drum and a blow-off pipe, the blow-off pipe is communicated with the sludge drying system, and the magnetic drum is connected with the dosing system to convey recovered magnetic seeds into the dosing system. According to the utility model, the removal efficiency of heavy metal ions in wastewater can be effectively improved, and bottom mud reduction is real