The underground WWTP, featuring “eco-friendliness, land intensiveness and resource utilization”, is an upgraded version of the traditional WWPT. It can effectively save land (covering only 1/3 of the area of traditional WWTP) and sewer pipe network investment, and leaves the above-ground space for urban ecological complexes, providing a perfect solution to municipal wastewater treatment system planning and innovation in the densely populated downtown areas.
1.HBR™ (Hybrid Bio-Reactor) High-Efficiency-Low-Energy-Consumption Biofilm Process (non MBR) independently developed by CWEG: The effluent of the underground WWTP achieves Surface Water Quality Standard Class IV, ensuring effective ecological water replenishment for the murky and smelly rivers in the city.

2.CWEG boasts the most technologically advanced underground WWTP with top 1 treatment capacity worldwide and over 60 core and patented technologies.

3.The underground WWTP, featuring “eco-friendliness, land intensiveness and resource utilization”, has been widely deployed in places like Beijing, Shanghai, Chengdu, Guiyang and Fuzhou.