The influent suspended solids concentration to a primary settling (clarifier) tank is 300 mg/L. The average flow rate is 0.037 m3/s. If the suspended solids removal efficiency is 65 percent, how many kilograms of suspended solids are removed in the primary settling tank each day?

Q: B/ design circular tank to treat 5000m3/day of water with particles of 0.003cm, specific density…

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Q: Raw primary sludge at a solids concentration of 4% is mixed with waste activated sludge at a solids…

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

A:

Q: A settling tank (32 m long, 2.1 m across and 1.6 m deep) is used to clarify water containing…

A: width of tank=2.1m=210cmdepth of tank=1.6m=160cmdiameter of particles = 120 μm = 0.12 mm = 0.012…

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: The BOD just downstream from a wastewater pipe is 12.9 mg/L and the DO (dissolved oxygen) is 8.6…

A: Given, BOD just downstream from wastewater pipe, L = 12.9mg/l DO at just downstream from wastewater…

Q: Given: Flow rate of water = 500 L/min Suspended solids concentration in influent water = 100 mg/L…

A: As per guidelines, only first question is been solved.

Q: Hydraulic conductivity K= 100 ft/day, Aquifer thickness B = 50ft, Hydraulic gradient J = 0.001 Plume…

A: Co-efficient of Permeability , K=100ft/d Aquifer Thickness , B=50 ft Hydraulic Gradient , j=0.001

Q: Alum at a rate of 20 mg/l is added to an incoming discharge of 0.5 m3/s which carries 250 mg/1 of…

A: 1. Alum added at a rate of 20 mg/l.2. Incoming discharge: 0.5 m³/s3. Incoming discharge carries 250…

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: There is sedimentation tank that is used to remove suspended solid particles from an incoming…

A: Given Discharge= 150m3/hr surface area= 15m2

Q: A completely mixed activated sludge process operating at equilibrium is designed to treat 300 MLD of…

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Q: 1. The influent suspended solids concentration to a primary settling tank is 435 mg/L. The average…

A: A primary settling tank (PST)-Influent suspended solids concentrations MLSS (Xt)=435 mg/L=435…

Q: How to determine the needed surface area of the secondary clarifier tank given that the flow is…

A: Given, Flow rate, Q = 40,000 m3 /day Recycling ratio = 0.5 Solid concentration = 13,000 mg/L MLSS =…

Q: If the filtration equation for a suspension of solids at a constant pressure of 38.7 psia is:…

A: At constant presssure, P1 = 38.7 psiaThe filtration equation of suspension solids isTo determine the…

Q: A settling chamber is to be used to collect particles with a density of 1200 kg/m3 from an air…

A: A settling chamber is to be used to collect particles with a density of 1200 kg/m3 from an air…

Q: P to a secondary plant that The town of Gatesville has been directed to upgrade its primary" can…

A: Flow = 0.150m3.s-1BOD5 = 84.0mg.L-1 =100 mg.L-1Kd = 0.050day-1

Q: 1. The lab placed a sample in an evaporation dish and evaporated it at 105°C finding that the dish…

A: Given, Design flow, Q = 20 mgd or 20 x 106 gallons Volume of sample, V = 90 ml or 0.09 Liter   NOTE…

Q: Q2: A column analysis for an activated sludge su MLSS Conc (mg/l) Settling velocity m/h 1000 2.8…

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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.