SEWAGE WATER TREATMENT PLANT USING DIFFUSED AIR SYSTEM

Current study was aimed to propose a novel design for compact sewage water treatment plant with a capacity of 100 m3/day (2x50 m3/day). The major pollutants are SS, BOD5, COD and organic pollutants. The recommended treatment process is an aerobic activated sludge. The analysis results of the sewage water are: pH average values 6-8, turbidity 12 UNT, daily suspended solid 850 mg/L, BOD is760 mg/L. The proposed design for the treatment plant consists mainly of: a bar screen, aerated gas trap, aeration tank and a collection pit. The main components of the extended aeration unit are: clarifier, sludge holding tank and diffused air system. The general objective of this investigation is to treat sewage wastewater and produce treated water which coincides with environmental regulations. While the specific objective is to get odourless, colourless treated water free of pathogens and toxic materials so it can be used for irrigation of non-edible trees.

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