A domestic wastewater with BODs of 205 mg/L is treated by a secondary treatment plant that removes 85% of the BOD. You are to run a five-day BOD test with a standard 300-ml bottle on the treated sewage without seed. Assume the initial DO is 9.2 mg/L. (a) (b) What maximum volume of treated sewage should you put in the bottle if you want to have at least 2.0 mg/L of DO at the end of the test (filling the rest of the bottle with water)? If you make the mixture half water and half treated sewage, what DO would you expect after five days?

Q: A 5-mL sample of sewage is diluted to 300 mL in a stan- dard BOD bottle. The initial DO in the…

A:

Q: A municipal wastewater flow of 1,000 m³/d contains 400 mg/L BOD5 and is treated to be in a trickling…

A:

Q: incoming waste, with BOD5 equal to about 200 mg/l is treated in a well-run secondary treatment plant…

A: BOD5 = 200 mg/LRemoval Efficiency =90 %Total Volume (V) = 300 mLInitial DO  (DOi) = 9.2 mg/LFinal DO…

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: 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: If the BOD3 of a wastewater sample is 75 mg/l and reaction rate constant k (base e) is 0.345 per…

A:

Q: A city discharges 1500 litres per second of sewage into a stream whose minimum rate of flow is 6000…

A:

Q: A BOD test is to be run on a sample of wastewater that has a five-day BOD of 195 mg/L. If the…

A: Given, BOD5 = 195 mg/L DOi = 9 mg/L Vb = 300 ml

Q: A municipal wastewater flow of 1,000 m³/d contains 400 mg/L BOD5 and is treated to be in a trickling…

A:

Q: A domestic wastewater with BOD5 of 205 mg/L is treated by a secondary treatment plant that removes…

A: Given:- BOD5= 205 mg/L, the Secondary Treatment Plant removes 85% of BOD. Initial Do (Doi) =9.2…

Q: 4.4.If an industrial plant is generating wastewater containing 350 mg/L of lysine [HO₂ CCH (NH2)…

A: Step 1: Step 2: Step 3: Step 4:

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.