A complete mix activated sludge process treats 5 MGD of wastewater containing a total BOD5 concentration of 225 mg/L BOD5 to 20 mg/L BOD5, which is 75% soluble in both the influent and the effluent. The volume of the aeration basin is 111,400 ft3 and the MLSS concentration is 2500 mg/L. Determine the following: a) Detention time in the aeration basin (hr) b) F/M ratio c) Specific substrate utilization rate  d) Substrate removal efficiency

Q: A sewage treatment plant discharges 4 ML/d of effluent with 20.17 mg/L BOD5 into a stream. The…

A:

Q: Problem 1. A wastewater sample is examined for its solid contents. The ionic strength (μ) of…

A: (a). The concentration of organic solids in the wastewater sample. Since 30% of TDS is organic, the…

Q: After primary treatment, a municipal wastewater contains 150 mg/L BOD5. The wastewater flow of 0.44…

A: Given: Influent BOD, S0=150mg/L Discharge through the aeration tank=0.44cumec HRT=6hr…

Q: The 550-bed Atlanta Hospital has a small, activated sludge plant to treat wastewater from the…

A: Given, V = 10 m x 10 m x 5 m N = 550  q = 1.50 m3 per day per bed   To find : Aeration time

Q: The wastewater contains 7.5 x 105 fecal CFU per liter. The maximum permissible fecal coliform…

A: Given: Initial coliform concentration, Co = 7.5 x 105 CFU/L Maximum permissible coliform…

Q: A CMAS treatment system must be designed for a municipal wastewater and the following operating…

A: The given data is: BOD5=0.39m3/s VSS in the aeration tank=4300 mg/L 55 g VSS=100 gm soluble BODs…

Q: 12.50 Determine the activated-sludge aeration volume required to treat 2.64 mgd with a BOD of 120…

A: The objective of the question is to determine the aeration volume, MLSS, sludge age, and the…

Q: rimary and secondary) per day. Assume 30% removal efficiency of the primary clarifier and F/M ratio…

A: Given:- The plant processes 7000 m3/d of wastewater 180 mg/L of BOD5 150 mg/L of suspended solids.…

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.