湖北[Xiaonan District Center] Xiaonan Economic Development Zone North District Sewage Treatment Plant and Supporting Pipe Network (Integrated Plant Network) Project Preliminary Design Service Project Application Announcement (Project No. HBXN-202504SZ-022)

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The construction unit (or bidder) of Xiaonan District Housing and Urban Rural Development Bureau in Xiaogan City. Project name: Xiaonan District Economic Development Zone North District Sewage Treatment Plant and Supporting Pipe Network (Factory Network Integration) Project Preliminary Design Service Project Location: Xiaonan Economic Development Zone North District Construction (Bidding) Content: A new sewage treatment plant will be built in the North District of Xiaonan Economic Development Zone, with a short-term design scale of 25000 tons/day and a long-term scale of 50000 tons/day. The short-term and long-term scale will be constructed in stages. Construct and renovate approximately 24.145 kilometers of sewage pipeline network, including 0.3km of DN1200-DN1500 (excluding DN1500) gravity main pipeline, using reinforced concrete pipes and top-down construction; The DN600 pressure main pipe entering the factory is 0.845km long, using ball milled cast iron pipes for excavation construction; Construct a new sewage branch pipe of 7.4km with a diameter of DN400-DN1000 using reinforced concrete pipes, and renovate a sewage branch pipe of 15.6km with a diameter of DN400-DN1000 using reinforced concrete pipes. The sewage pipeline is cleared for about 10 kilometers. The sewage treatment adopts the process of "coarse grid and lifting pump room+fine grid and cyclone sand settling tank+regulating tank+biological doubling tank+mobile bed biological tank (denitrification biological tank+nitrification biological tank)+high-density sedimentation tank+sand filter+contact disinfection tank+pasteurization metering tank". After the implementation of the project, the effluent quality meets the national surface level IV standard requirements, the centralized sewage collection rate is increased by 10%, and 1.6 square kilometers of blank areas are eliminated. Complete the preliminary design (including budget preparation) that meets the technical requirements of the project in accordance with current national, local, and industry standards. The total investment amount (in 10000 yuan) is 410.0. The project approval number is Xiaonan Development and Reform Approval [2025] No. 37, and the registration completion time is April 15, 2025. The estimated contract issuance time is April 15, 2025. Contact person Huang Kun's contact phone number is 0712-2064715
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