Complete sewage treatment equipment is suitable for domestic sewage treatment of residential communities, hotels, schools, hospitals and scenic spots, industrial wastewater treatment for printing and dyeing, food processing, aquaculture, slaughterhouses, chemical plants and leather factories, rural decentralized sewage purification, underground station sewage treatment, small factory workshop wastewater disposal, park integrated wastewater treatment, black and odorous river water restoration, as well as medium and small-sized sewage upgrading and reconstruction projects.