What is the hydraulic retention time?  b. What would be concentration decay model along the relative length x=L/L0?

Q: . Design and activated sludge process to treat 10MGD of domestic sewage having a BODs of 210…

A: Data given-Q0 =10 MGD   = 37854.12 m3/d       SS =10 mg/lSo =210 mg/l      Xt =10,000 mg/l     Qc =…

Q: Q1: Design an activated sludge process to treat a wastewater of 15000 m³/day with a BODs of 180 mg/l…

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Q: CSTR CSTR Q Q PFR PFR

A:

Q: A schematic flow diagram of a completely mixed biological reactor with provision for recycling of…

A: given- discharge Q=15000 m3/ddetention time HRT=2 hrs=224daysX=3000 mg/Lwasted sludge Qw=50…

Q: The 5 day BOD of a water sample is 75 mg/l and has a reaction rate constant of 0.345/day. Compute…

A: Given: BOD after 5 days, L5 = 75 mg/lt Reaction rate constant, k = 0.345/day

Q: A sealed 1L reactor contains 500 mL of water, 200 mL of soil (density 2.1 g/cm3) and 300 mL of air.…

A: Calculate the mass of TCE in each phase:Air: 100 μg * 0.3 L / 1 L * 1000 g / 1 kg = 30 μgWater: 100…

Q: Determine the ultimate 1st stage BOD. Calculate the 1-day BOD. What would be the 5 day B0 if the…

A: 5 day BOD5 at 20°C = 150 mg/lk=0.20day-1Let BOD ultimate = L0 thenBOD5=L0(1-e-kt)

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: A small lake with olume m3 has a stream flowing into it with flow rate 100 m3/day and a Toluene…

A: a) The increase in discharge concentration would lead to an increase in the overall concentration of…

Q: Discuss Coefficient of Subgrade Reaction

A: The coefficient of subgrade reaction is the reaction pressure sustained by the soil sample under a…

Q: An open cylindrical tank contains two liquids with a specific gravities and depths as follows:…

A:

Q: 2. A cylindrical tank 1.5m in diameter contains a column of 3 immiscible liquids with SG 0.8, 1.0,…

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Q: Glycerin (specific gravity 1.26) in a processing plant flows in a pipe at a rate of 805 L/s. At a…

A: Given data:

Q: following data : ) Qty. of soft water required per hour = 25,000 litres (ii) Hardness present in raw…

A:

Q: Develop a mathematical expression of three phase fluidized bed reactor for first order catalytic…

A: Fluidized Bed Reactor : The fluidized bead reactor has the ability of processing the large volumes…

Q: A vertical cylindrical tank has a diameter of in and a height of 2.50 m. The tank, open at the top…

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Q: 2. Given the following Ks= 10mg/l; q^=18mg/mg VSSa-d; Kd= .25d-1; Y= 0.7; Sᵒ=1,000mg/l; Q = 1000…

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Q: centrifuge bowl with internal diameter of 150mm is turning at 8000r/min is used to separate…

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Q: A rigid, well-insulated tank contains a two-phase mixture of ammonia with 0.0028 ft3 of saturated…

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Q: A waste stream flows at 2,000 liters/day with a concentration of 60 mg/l of hazardous chemical A.…

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Q: Choose the process that will not disturb the following equilibrium. Co(g) + H2O(g) =CO2(g) + H2(g) O…

A: 1) Answer Option c Lechatelier's principle :- It states that, when a system at equilibrium is…

Q: A full scale agitation system that has a flat blade turbine impeller with six blade-disk is used in…

A: The volume of the scale down system is one-fourth of the large scale volume. The ratio of the volume…

Q: The ratio of the momentum correction factor to the energy correction factor for a laminar flow in a…

A:

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: Glycerin at 20 °C flows upward in a vertical 75- mm-diameter pipe with a centerline velocity of 3.3…

A: Given: Diameter of pipe, D = 75 mm = 0.075 m Centerline velocity, Vc = 3.3 m/s Length of pipe, L =…

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: A Pump & Treat water treatment system at a contaminated site is designed to treat 5 m3/d of ground…

A: Given, Q = 5 m3/d Ci = 100 mg/L Ce = 25 mg/L V = 20 m3 k = 0.5/d

Q: (Al P,10%12)

A:

Q: A small lake with volume 10,000 m3 has a stream flowing into it with flow rate 100 m3/day and a…

A: a) The increase in discharge concentration will cause a slight increase in the lake concentration.…

Q: An activated sludge system using CSTR with sludge recycle has an influent flow rate (Q°) of 2.5 MGD…

A: We have to determine the value of hydraulic retention time he solids retention time and activated…

Q: figure below at 100 m3/hour. What should be the elevation ( in meters) in the upper reservoir? The…

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Q: a) A PFR has a conversion of A of 90% (i.e. C = 0.1C), and the reaction is first order. If a…

A: Given, Dispersion number = 1  % conversion = 90%

Q: Answer Calculate the mixing power (hp) required the in line kla

A: Given: Mixing intensity, G = 4300 s-1 Temperature = 40F Dynamic viscosity, μ = 3.2 x 10-3 lbf.s/ft2…

Q: A laboratory test on a suspension of solid in liquid gave the following information: Original height…

A: The given data is shown below: Original height of sludge before settling= 10 inchesFree settling…

Q: A laboratory fermentor is equipped with a baffled disc-blade turbine mixer with a diameter of 0.1m…

A: The flow of fluid includes movement of an unbalanced fluid. As long as unequalled forces are in…

Q: Q DA V₁ = 1/2 A. Vi V ) B. Vi = - C. VI = V Q V2 Q2 depth, which equ

A:

Q: Glycerin at 20 °C flows upward in a vertical 75-mm-diameter pipe with a centerline velocity of 3.8…

A: i hope its helpfull.thank you.

Q: - Look at the following information for a completely mixed biological reactor: tank 3 volume 200 m';…

A: Given data, Tank volume= 200m³ Flow rate= 50m³/d  Substrate= 95mg BOD5/L  Ks = 60mg BOD5/L  Kd. =…

Q: 23. The ratio of the momentum correction factor to the energy correction factor for a laminar flow…

A: Required :- Ratio of Momentum Correction Factor to the Kinetic Energy Correction Factor.

Q: The design flow for a water treatment plant (WTP) is 1 MGD (3.8x10' m' /d). The rapid mixing tank…

A:

Q: Calculate the first-order reaction rate constant in days for the given data. The number of CFSTRS in…

A: The values given in the question are as follows: Influent BOD5=BODu=160 g/m3 Effluent BOD5=BOD5=10…

Q: 6. Crude oil of relative density 0.91 (viscosity = 1.24 poise) is pumped through a supply pipeline…

A: Crude oil of relative density (G) = 0.91Viscosity () = 1.24 poisePipe diameter (D) = 75 mmFlow rate…

Q: When the accumulated liquid along the bottom of the pipe or in a well reaches a certain level and…

A: When the accumulated liquid along the bottom of the pipe or in a well reaches a certain level and…

Q: A 12.5mm diameter orifice at the vertical side of the tank showed a discharge of 60 liters for every…

A:

Sediment transport

Sediment transport or Soil transport is the movement of solid particles, usually due to the combination of gravitational forces acting on the sediment, and the movement of the liquid at which the sediment enters. Soil erosion occurs in natural systems where the particles are sandstones (sand, rocks), mud, or clay; the liquid is air, water, or ice; and the gravitational force that works to move particles to the landing surface. Sediment transportation or soil migration due to the movement of liquids occurs in rivers, lakes, lakes, oceans, and other bodies of water as a result of currents and waves. Transportation is also caused by glaciers as they flow, and to places on earth under the influence of wind. Soil erosion due to gravity alone is possible in most sloping areas, including hills, scarves, cliffs, and the continental shelf — the continental boundary of the slope.