Feasibility Research On Panlong New Distric Wastewater Treatment Plant In Baoji City

The research is based on the sewer networks of Panlong New District, Baoji city and the pressing need to solve effluent problem of present plants. Through comparison between A/A/O and CASS technique from perspectives of feasibility of technique, treatment effects, energy consumption, environment impacts and operation management, the research offers a theoretical foundation for the construction of the wastewater treatment plant. The major findings are:(1) The scale of the program has been set as 100,000m3/d, and it will be constructed in two phases(the first phase 30,000m3/d, the second phase 70,000m3/d);(2) Since the actual measured water quality data within the service area of the wastewater treatment plant is not available, taking land use into consideration, analogy method is employed to set the inflow water quality parameters.;(3)The chosen technique for wastewater is: aerated grit channel+A/A/O technique+secondary sedimentation tank+DT high density sedimentation tank+D-shape filter tank+ sodium hypochlorite; sludge treatment technique is: gravity concentration+plate frame dehydrating and sludge cake outward transportation;(4)The layout plan of the wastewater treatment plant conforms to the planning of Panlong New District. The garden-style building is designed to harmonize with its surroundings, and to better connect with the park landscape;(5)The result of cost analysis is: the total investment of the construction is 214,588,000 yuan, investment of unit water is 2145.9yuan/ton, total cost is 79,570,000 yuan, the operating cost is 2.18yuan/ton.The research lays down the scale of the program, treatment technique, total investment, cost and construction period of the wastewater treatment plant, and makes a calculation of the recommended technique, which provide relevant departments of Panlong New District with reference to the sewage treatment plant construction and preliminary design.