Dongguan urban sewage treatment plant is located in Nancheng District, Shigu Village, Wangzhou, Dongguan City, is currently the use of secondary treatment, the design capacity of 200,000 tons of daily sewage treatment of one of the largest state-owned sewage treatment plant. Occupies an area of 154,200 square meters, the total length of the trunk pipe interceptor is 14.77Km, pipe diameter D1400mm to D2600mm; water collection scope: Dongguan City, Guancheng District, Nancheng District, Wanjiang District, the south of the group, the Dongcheng District (Niushan area, Sangyuan, Zhouya, Wintang area except) all the domestic sewage; service area of 62.95 square kilometers, the service area of the current population of 499,600 people. Outside the jurisdiction of the new base sewage pumping station, Shanzhou River sewage pumping station two and the maintenance of the network.
The sewage treatment plant plant one and two phases of the estimated total investment of 600 million yuan, of which 200 million yuan of investment in the plant, pipe network investment of 400 million yuan. Completed in two phases of the project, one in September 2001, put into trial operation in June 2002, the use of anaerobic - oxidation ditch process (A/O process), the capacity of 100,000 tons / day; the second phase in September 2003, put into trial operation on August 28, 2004, the use of anoxic, anaerobic - oxidation ditch process (A2 / O process), with a total investment of 600 million yuan. (A2/O process), treatment capacity of 100,000 tons / day.
The Dongguan municipal sewage treatment plant after treatment of the tail water, by the Dongguan City Environmental Protection Monitoring Station routine sampling and testing, water quality in line with the national "urban sewage pollutant discharge standards" (GB18918-2002) a B standard.