After primary treatment, a municipal wastewater contains 150 mg/L BOD5. The wastewater flow of 0.44 m³/s (10 MGD) is then treated in an activated sludge system with an SRT of 12 d and an HRT of 6 h. Given the biokinetic parameters tabulated below, determine the aeration volume (m³).

Q: Consider a well-mixed aeration lagoon to remove BOD from a waste stream flowing at 5 MGD. The lagoon…

A: Data given: Discharge = 5 MGD Dimensions of lagoon Length (L) = 100 m Width (B) = 30 m Depth (D) = 3…

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

A:

Q: 1. Determine the 5-day 20°C BOD of a wastewater if the 3-day 10°C BOD is 100 mg/L. Assume a…

A:

Q: SS=4,000 mg/L raw wastewater has the following characteristics: w=12 MGD Os=220 mg/L pended solids…

A:

Q: oluble BOD5 = 80 mg/L Assume that the BOD5 of the suspended solids may be estimated as equal to 50%…

A: According to given data  A small town has been directed to upgrade its primary wastewater treatment…

Q: A completely mixed activated sludge plant treats wastewater at a rate of 2,565 m³/d. The influent…

A:

Q: 300 mL of wastewater was collected, aerated and seeded with bacteria. The dissolved oxygen content…

A: Given:- The volume of the wastewater collected = 300 mL Initial dissolved oxygen content = 7.4 mg/L…

Q: Wastewater from a primary treatment tank is to undergo secondary treatment in an activated sludge…

A: Given data-Hydraulic retention time (t) is 6hMean cell residence time is 7 daysBOD content at inlet…

Q: 10 ml of wastewater is diluted to 1 liter, aerated, and sealed. The initial dissolved oxygen level…

A: Given that,Volume of waste water,Vs = 10 mlIt is diluted to 1 liter aerated and sealed.Initial…

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

A: BOD5=150 mg/LQ=0.44 m3/s (10 MGD)SRT = 12dHRT=6h To determine- Limiting value of SRT

Q: b. Find the DO at 12 10. A water treatment plant treats the water at the rate of 33 MGD. Average…

A:

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

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

Q: A conventional activated-sludge system treats 11,000 m3/day of wastewaterin an aeration tank with a…

A: SRT = 7 DAYSExplanation:Step 1:In the context of wastewater treatment specifically with activated…

Q: Direction: An activated sludge system (sketched below) is operating at equilibrium with the…

A: An activated sludge system- Flow rate Q=500 m3/hr, BOD=150 mg/L, Effluent BOD=10 mg/L, MLSS=2000…

Q: (a) (b) Sludge thickening can be implemented using several methods. Describe TWO (2) differences…

A: Sludge can be defined as the residue that is left after the treatment of sewage. Sludge can be…

Q: The wastewater from a synthetic textile manufacturing plant is discharged to a municipal treatment…

A: Given: Textile plant: BOD = 1500 mg/l SS = 2000 mg/l Nitrogen = 30 mg/l Phosphorous = 0   Domestic:…

Q: Question 6 A complete mix activated sludge secondary treatment plant has an influent BOD5 of 80…

A: Solution Given Data s0=80 mg/LS=10 mg/lQc= 5 dayskd=0.06/dx=2200 mg/ly=0.5 mg vss/mg BOD5

Q: 1. It is estimated that the BOD of raw sewage received at a treatment plant serving a population of…

A:

Q: An activated sludge tank is 30 m long and 10 m wide and has an SWD of 4 m. The wastewater flow is…

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.