In recent years, the county-level city of Qingzhen in Southwest China's Guizhou province has implemented domestic sewage treatment in villages along Hongfeng Lake, which has improved the water quality of Hongfeng Lake and the living environment in rural areas.
Hongfeng Lake, which takes its name from the red leaves adorning the lakeside maple trees, is a significant drinking water source for local residents.
According to local officials, there are 17 administrative villages along the Hongfeng Lake, with a total permanent population of 44,084, discharging about 3,000 metric tons of domestic sewage into the lake every day.
In 2018, Qingzhen city launched the domestic sewage treatment project in the villages along Hongfeng Lake.
The project had a total investment of 180 million yuan ($27.83 million) and saw the construction of 136 new sets of sewage treatment systems and supporting pipe networks. The treatment systems have reached a daily sewage treatment capacity of 3,255 tons and achieved full coverage of rural domestic sewage treatment within the scope of Hongfeng Lake's protection zone.
Through the treatment project, the villages along the lake are expected to reduce emissions of 210 tons of chemical oxygen demand, 28 tons of ammonia nitrogen and 3 tons of total phosphorus each year. The pollution reduction has improved the lake's water quality and advanced the living environment of villages along the lake.
Che Weiwei contributed to this story.