A wastewater treatment plant must disinfect its effluent before discharging the wastewater to a nearby stream. The wastewater contains 6.5 x 105 fecal coliform – forming units (CFU) per liter. The maximum permissible fecal coliform concentration that may be discharged is 3000 fecal coliform CFU/L. It is proposed that a pipe carrying the wastewater be used for the disinfection process. Determine the length of pipe required if the linear velocity of the wastewater pipe is 0.85 m/s. Assume that the pipe behaves as a steady-state plug flow system and that the reaction rate constant for the destruction of the fecal coliform is 0.23 per min.

Q: A wastewater treatment plant must disinfect its effluent before discharging the wastewater to a…

A: Given data: Initial concentration of California colony (Co) = 5.5 x 105 CFU/L. Maximum California…

Q: The wastewater having an organic concentration of 54 mg/l is flowing at a steady rate of 0.8 m³/day…

A: Given data- Organic concentration- Lo=54 mg/L,Q=0.8 m3/day,dimension 2 m×4 m×2 m.decay constant…

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A:

Integrated Solid Waste Management

Integrated Solid Waste Management (ISWM) is a thorough waste suppression, compost, removal and recycling Program. An effective ISWM system considers how to suppress, manage and recycle solid waste in a manner that is most efficiently to protect human health and the surrounding. ISWM system requires evaluation of public wants and demands and then selecting and merging the most effective waste management activities for the proposed demands. The main ISWM activities for solid waste management are Waste prevention, Recycling and Composting, and Combustion and Removal and waste collection in a properly planned, constructed, managed and mitigated landfill areas. Each of these requires careful designing, financing, accumulation, and delivery of activities.