A Semi-solid waste storage has a volume of 1145 m3. The basin is initially 71% empty. The semi-solid density is 1521 kg/m3 is taken away from the storage tank at a rate of 5211.81 kg/day. How long will the basin take to be 91% emptied? Assume the storage is now initially full 23% and re-estimate the time to empty it

Q: Design the in-line storage volume required to equalize the flowrate by using the following data.…

A: Time (hour) Flow (m3 /s) Volume (m3 ) 0000 0.0591 425.52 0200 0.0336 241.92 0400 0.0297…

Q: What is the effluent BOD5 of an activated sludge plant, given So = 150 mg/1, y = 0.5 kg biomass/kg…

A:

Q: 2. A suspension of particles with a particle density of 2796 kg/m³ is settling in water with a…

A: Given Specific gravity G = 2796/1000 = 2.796  Kinematic viscosity of water at 20 ° C = 1.004 × 10 -6…

Q: 2. Reservoir R is elevation 180 m. Junction Y is at elevation of 120 m and 15,000 m from R. Town A…

A:

Q: A container of Atrazine (500 g) is dumped into a river 2.3 km upstream of a municipal water intake…

A: Given, M = 500 gm or 0.5 kg L = 2.3 km or 2300 m  A = 5.7 m2  Q = 8.25 m3/s D = 0.1 m2/s

Q: Question 4 Screenings are placed in a debris roll-off dumpster that holds 20 cubic yards of…

A: Let's convert first the 20 cubic yards to gallons:   = 20 yards3 x 27 ft3/yd3   = 540 ft3 x 7.48…

Q: A stream containing no biochemical O2 demand (obviously a hypothetical situation) has a DO of 5.00…

A: Given  DO = 5.00mg/l Flow Rate =  8.7m3/s Temperature = 15oC Avg Velocity =  0.174 m/s Avg Depth =…

Q: 2. A digester has a total volume of 720 m3. It will be used to treat sludge from a wastewater…

A: Total volume of digester (V) = 720 m3Sludge production rate = 2m3/h Determine the retention time in…

Q: A chemical tanker truck crashes into a flooded, abandoned quarry (no soil or sediment on the…

A: Given data,carrying 1000 kg of benzeneThe quarry is 10 m deep and has a surface area of 10,000…

Q: Fifty kilograms of toxic material is spilled uniformly across a canal. The canal is trapezoidal with…

A: Velocity, V = Q/A. V = 16/12.325 = 1.3 m/s  For after t= 2 hours of spill, t= 2*60*60 sec length of…

Q: A stream has a cross-sectional area of ​​A= 85 m2, length L = 1000 m, velocity U=185 m/hour,…

A: Given area of the stream  A=85 m2 Area of the stream  A=85 m2and velocity of the stream U=185 m/hour…

Q: Water in a channel is flowing at a velocity, u=0.5 ms-1, and has a flow rate, Q = 2 m3s-1. The…

A:

Q: Calculate the steady-state recharge rate, and find how long would it take for dissolved road salt to…

A: Given data: Hydraulic conductivity, k(z)=0.5+0.03z Porosity, n=0.23 Depth of unconfined aquifer=-11m…

Q: 1 Jar tests have indicated that 80 mg/L of alum are required to coagulate water for drinking water…

A:

Q: A municipal wastewater treatment plant processes an average flow of 5000 m³/d. A primary clarifier…

A: Average flow Q=5000 m3/dEfficiency of primary clarifier=60% at average flow.To Find-The value of…

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.