For a spiral membrane filtration system, the membrane was fabricated by adding additional shims to the flow channel to increase the depth of the channel by 30% (the flow rate remains unchanged). What impacts will be on the crossflow velocity? A. increase by about 23% B. increase by about 13% C. decrease by about 23% D. decrease by about 13%

Q: A circular secondary clarifier will be used to treat an average daily flow (ADF) of 6,000 m3 /d from…

A: Overflow Rate (OR) = 15 m3/ d. m2  Solids Loading Rate (SLR) = 100 kg/ d. m 2 Average Daily Flow…

Q: Reservoir A Pipe 2 Pipe 1 10 m Reservoir B

A:

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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: wet sludge contains 3% solid by weight is pumped to a filter belt press at the rate of…

A: wet sludge contains 3% solidFilter rate = 170,000 lb/dayTo calculate the amount of nitrogen (lb/day)…

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: What is the critical depth in a rectangular channel with 2.3 m width and 0.91 m2/s discharge per…

A: What is the critical depth in a rectangular channel and calculate minimum specific energy?

Q: Q4: A wastewater treatment plant as shown: The surface area of each unit 800 m². Depth of each unit…

A: Step 1: Analyse the question. Step 2: Approach question step by step. Step 3: Apply necessary…

Q: A storm sewer is mixed into a small streams. the stream before the mixing point has a NaCl…

A:

Q: The 550-bed Atlanta Hospital has a small, activated sludge plant to treat wastewater from the…

A: Given, V = 10 m x 10 m x 5 m N = 550  q = 1.50 m3 per day per bed   To find : Aeration time

Q: The design flow for a water treatment plant (WTP) is 7.2 x 103 m³/d. The rapid mixing tank will have…

A: Given Data:The design flow for the WTP is Q=7.2x103 m3/day.The average alum dosage is da=50 mg/L.The…

Q: : A tracer a plastic mec recorded as

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Q: usec Eme as a coagulant aid at a water treatment plant. The specific gravity of the floc and adhered…

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A:

Q: The infiltration capacity in basin is represented by Horton's equation as fp=5.0 + e-St where fp is…

A:

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: SAE 10W oil flows in a 40-cm-diameter, 300-m long smooth concrete pipeline at an average velocity of…

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Q: bread and breakfast facility is considering an ion exchange resī ndwater. The flow required is 1000…

A: Efficiency of the reaction :E=325-50325=85.62%so,

Q: The saturation DO concentration of a stream is 9.1 mg/L. At a sewage outfall, the DO of the stream…

A:

Highway Drainage

Highway drainage is the process of extracting and regulating the excess surface water on the pavement by giving the desired slope. The construction of a highway drain helps to divert the water present on the surface, and sub-grade by the means of slope. Highway drainage systems are a necessary part of smooth functioning of traffic, since the highway drainage systems provide proper disposal of unwanted substances from the highways.