Efficient circular treatment device and method for sewage in industrial park

The invention discloses an industrial park sewage efficient circulation treatment device and method.The industrial park sewage efficient circulation treatment device comprises a sedimentation tank and an operation frame, the operation frame is arranged on one side of an opening in the top of the sedimentation tank, an inner cylinder is arranged in the sedimentation tank, and a positioning plate capable of stretching into the inner cylinder is fixedly, vertically and slidably arranged outside the operation frame; water passing holes are densely formed in the outer part of the inner cylinder, the operation frame comprises a mounting block arranged on the side edge of the sedimentation tank, a lifting frame for supporting the positioning plate to vertically slide is fixed on the inner side of the mounting block, a water pump is fixed on the top side of the positioning plate, and the positioning plate is used for supporting the water pump and a filter cover below the positioning plate to float on the water surfac