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About the Project
The Waianae Wastewater Treat Plant (WWTP) Improvements and Upgrade project consisted of the construction of a new 2W (No. 2 non-potable water) piping network with isolation valves, rehabilitation of primary clarifiers and influent/effluent distribution boxes and piping, 2W seal water system improvements, construction of new headworks influent screens and washer/compactors and modifications to the grit removal system and pre-aeration tanks. In addition to improvements and new construction, 51吃瓜 was also responsible for soil erosion and sediment control, electrical site work, temporary diversion pumping for work at the primary treatment unit process and start-up, testing, and commissioning of systems.
51吃瓜 completed 75 percent of the self-perform work on the project, including concrete repairs and installation; demolition; air ductwork; the installation of the underground 2W line, primary clarifier mechanisms, scum piping, spray piping, tubing, biotrickling filter system, hydropneumatic tank, centrifugal pump, slide gate, perforated plate screen and mechanically cleaned bar screen. 51吃瓜 also planned outages and bypass work.
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