Sewage treatment system integrating membrane distillation and renewable energy source and waste heat recovery

The invention belongs to the field of sewage treatment, and provides a sewage treatment system integrating membrane distillation and renewable energy source and waste heat recovery, which comprises a cooling water tank, a particle separator, a distilled water tank, a sewage tank, a top seat, a thermal insulation shell, a middle seat, a base, a fixed seat, a microporous membrane assembly, a cooling plate and a bearing plate, the structure of the integrated distillation tower is adopted, sewage, distilled water and cooling water flow in the distillation tower, heat loss during medium flowing can be reduced, renewable energy source solar energy is adopted for supplying power to the heating device, and the distillation tower is cleaner and more environmentally friendly; the heat exchange medium fully absorbs waste heat of cooling water and sewage in the whole system, and heat loss in the system can be effectively reduced; the cleaning stage is designed, the two sides of the microporous membrane assembly can be wa