Beijing had completed the treatment of 141 black and odorous water bodies and its sewage treatment rate had increased to 94 percent by the end of 2018, according to Beijing Municipal Commission of Development and Reform (BMCDR) on Tuesday.
To strengthen sewage treatment and improve the water environment, Beijing Municipality has carried out two three-year action plans, one from 2013 to 2016, the other from June of 2016 to June of 2019.
The city conducted a comprehensive investigation to large and small rivers and ditches within its border and identified 141 black and odorous water bodies with a total length of 665 kilometers at the end of 2015.
In 2016, the 141 water bodies were listed as a key task of the second three-year action plan for sewage treatment. The treatment methods included pipeline construction, sewage pipe network construction, dredging, and replenishing reclaimed water.
By the end of 2017, treatment had been finished at altogether 57 black and odorous water bodies at the city’s built up area, the treatment of the other 84 water bodies at the non-built up area had completed by the end of 2018.
BMCDR introduced that after the two action plans for sewage treatment, Beijing’s sewage treatment capacity has increased to 6.72 million cubic meters per day, its sewage pipe network has exceeded 12,000 km and sewage treatment rate has increased to 94 percent.
The city has built five sludge treatment plants at the central districts and one new sludge treatment plant at each build-up area in suburb districts, and the city’s sludge treatment capacity has reached nearly 8,000 tonnes per day.