Chongqing Tangjiatuo WWTP protects water resources of the upper-middle reaches of Yangtze River
Chongqing, located in the area of Three Gorges Reservoir and at the intersection of multiple water bodies, has a large population and boasts prosperous economy, while at the same time, shoulders an arduous responsibility for environmental protection.
In 2007, SUEZ took over the management of Chongqing Tangjiatuo Wastewater Treatment Plant by TOT model, starting to provide wastewater treatment services for over one million citizens in Jiangbei District, Yubei District and Liangjiang New Area, Chongqing.
Protecting water resources of the upper-middle reaches of Yangtze River
WWTP with most complete processes and advanced technologies
Harmless treatment and resource recycling of sludge
Exploit resources from wastewater
The plant invested 11 million RMB to build a treated wastewater power plant with an installed capacity of 800Kw, which can directly substitute 10% of the plant's electricity use in production. In addition, the plant is equipped with a water reuse system, which is applied to greening, road cleaning, equipment cooling and other applications in the plant, saving about 94% of the water use across the whole plant.
- Tangjiatuo WWTP provides daily municipal wastewater treatment services for 1 million citizens, covering an area of 100 km2 in Jiangbei District, Yubei District, and Liangjiang New Area, Chongqing, with daily wastewater treatment capacity of 400,000 tons, and daily sludge drying capacity of 240 tons. It effectively protects the water resources of the upper-middle reaches of Yangtze River and guards the quality of living in Chongqing.
- The plant has creatively adopted resource recycling solutions, such as biogas production from anaerobic digestion of wastewater sludge, treated wastewater power generation, and water reuse facilities, so as to greatly reduce the consumption of natural gas, electricity and water resources. As a result, it saves the natural gas of 4 million Nm3, electricity of 550 kW.h, and water of 3.7 million m3 every year.