Dairy wastewater is treated in a series of CSTRs. The initial concentration of complex organics in the wastewater is 1500 mg/L. The first order rate coefficient is 0.45 d–1. Detention time in each reactor is 1.5 d. If two reactors are used in series, calculate the final effluent concentration of the organic matter. What is the conversion efficiency?

Q: Waste, measured as BOD, is removed according to first order kinetics at a rate constant of 0.4…

A: We knowBODt=BODY1-e-ktso for ·%BODtBODy=100-80=20%so,0.2=1-e-0.4tt=1.9348min

Q: A 1000 L completely mixed reactor receives a constant inflow of 250 L/day. The inflow is free of…

A: Following are the given information. A 1000 L completely mixed reactor receives a constant inflow of…

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: 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: problem 4: A wastewater treatment plant with an average daily flow of 0.25 m³/s must meet 30 mg/L of…

A: Part e) is not in your question but if you want it then only write otherwise leave that.

Q: 2) A wastewater is to be treated in a CSTR. Assume a first-order reaction where k = 0.15 per day.…

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 secondary treatment using a mixed water activated sludge system, have the flow rate of…

A: simple activated sludge process diagram and their simple formula

Q: A bio-tower composed of a modular plastic medium of 6 m is used as secondary treatment component in…

A: A bio-tower composed of a modular plastic medium of 6 m is used as a secondary treatment component…

Q: Q2) A waste of 600 m/hr flow rate with an ultimate BOD0 = 140 mg/l is to be treated in an activated…

A: Q = 600 m3hr y = .65 kd = .055 /day So = 140 mgl Se = 20 mgl θc= 10 days

Q: Consider an activated sludge WWTP (wastewater treatment plant). Influent comes in at 28 million…

A: As per guidelines, we are supposed to answer only first 3 sub-parts. Kindly repost other parts in…

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

A: To determine- Aeration volume (m3)

Q: 3.6. Determine the reactions to Beam D in Figure 3.22. Assume that the average dead and live load is…

A: Given: Average dead load and live load = 60 psf

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

A:

Q: A treatment plant treats water at an average daily flowrate of 2.7 m3/s. The water is chlorinated…

A: Given data,average daily flowrate of 2.7 m3/sChlorine concentration = 3 mg/LChlorine decays at a…

Q: i) Calculate ultimate BOD of the wastewater. ii) Based on the result calculated in Q2d(i), explain…

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.