Chongqing Endurance Environmental Technology Co., Ltd. is a national high-tech enterprise integrating sewage treatment process R & D, design and manufacturing of complete equipment sets, and the investment, construction and operation of water environment project. It has evolved into a large-scale company with three integrated sectors, including the construction and operation of sewage treatment projects, urban sanitation integrated operation services, and smart sanitation management that cover the entire industry chain. The following technologies it designs independently prove efficient in solving a variety of difficult problems in relation to wastewater discharge qualification: full quantification treatment for high-concentration organic wastewater, high-concentration ammonia wastewater treatment, zero discharge and resource utilization of electroplating wastewater, and full quantification treatment of landfill leachate under smart IoT control. The company provides customers with a reliable complete set of wastewater treatment solutions, including complete sets of wastewater treatment equipment; it keeps maintenance and operation advantages with a professional technical team for post-sales services, full life cycle management, and reduced operation and maintenance costs; it possesses advantages in terms of its operating model, and has built a management model that is highly efficient, replicable, and promotable.