Tangshan Xijiao Sewage Treatment Plant ? Located in the west side of the West Circuit,
Accounting for 11.67 hectares, with a total investment of 244 million yuan, the construction scale of 120,000 tons of sewage treatment, mainly responsible for the western built-up area of the city's industrial and commercial sectors, residential sewage and industrial and mining enterprises industrial wastewater treatment tasks, the service area of 22 square kilometers, about 395,600 people benefited from it. 2001, with the construction of the sewage treatment plant, Tangshan City invested 29.32 million yuan to carry out supporting pipeline network outside the plant, namely the East Sewage Trunk Pipe Project. Tangshan City, invested 29.32 million yuan to carry out the plant outside the supporting pipe network that is the East Sewage Trunk Pipe Project and the West Sewage Trunk Pipe Project construction, laying pipelines totaling 20.9 kilometers, at the same time, the construction of the South Lake pumping station. 2002, the construction began, sewage sludge treatment equipment after an international bidding process, the use of the United States, Germany, advanced equipment. Xijiao second plant project has the following characteristics: First, the water indicators are strictly in accordance with the new national standard design, the use of A/O denitrification process; Second, the simultaneous implementation of the water reuse project, the construction scale of 60,000 tons / day, for the Xijiao Thermal Power Plant as a circulating coolant water supplement; Third, all the sludge to achieve harmlessness and resource utilization, aerobic fermentation made of organic fertilizer or nutrient soil; Fourth, the focus of the odor to carry out Bio-absorption. It is completed and put into operation, so that the western part of Tangshan City can increase the sewage treatment capacity of 120,000 tons per day, regional sewage collection, delivery capacity, will fundamentally improve the pollution of the Qinglong River for the comprehensive management of the environment in Tangshan City, to improve the people's living and health standards play an important role. Second, process introduction? Xijiao Sewage Treatment Plant adopts the traditional activated sludge process with impeller surface aeration as the main body, all using domestic equipment. Sewage treatment uses a variety of methods to separate the pollutants in the sewage or transformed into harmless substances, so that the sewage is purified.?