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

Q: feeding continuously 6 g/L stock tracer soluti mine the theoretical tracer concentration in the he…

A: According to given data CFSTR Volume= 45 m3Constant flow in reactor= m3/d 6g/L stock tracer solution…

Q: 2. smaller than any of the cells to the left or right of the sheetpile. Is the velocity of flow in…

A: Flow net is given, Number of equipotential drops, ND= 7 Number of flow channels, Nf = 3 Coefficient…

Q: In an activated sludge treatment system, the BOD concentration decays according to first order…

A:

Q: A CMFR is to be designed to remove contaminant A from water with a steady-state efficiency of 95…

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Q: CSTR CSTR Q Q PFR PFR

A:

Q: 2. What is the effluent concentration of a substance t CM reactors at a concentration of 560 mg/l ?…

A:

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: brine. tly to into the water table. The concentration of chloride in the be img/L. The flow in the…

A: In this question ,we have to find out Hydraulic gradient i from given data

Q: Assume the described is at steady state. A fluid goes up to an aquifer that has groundwater and a…

A: Volume of groundwater reservoir, Outflow, Chloride Concentration of fluid, Chloride outflow,

Q: Water containing 50 mg/L of monodisperse (uniformly sized) spherical particles of diameter 100 μm…

A:

Q: (a) Determine the size range for the various fractions obtained during settling.

A: particle sizes ranging 1.27 × 10^-2 mm (smallest) to 5.08 × 10^-2 mm (largest)specific gravity of…

Q: For an aquifer with a bulk density of 2 g/cm3 containing 0.5% organic carbon, estimate the estimate…

A: Aquifer: It is an underground  water bearing rock structure. The water from the aquifer is yielded…

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: lorine concentration to inactive 2 logs of Cryptosporidium at a water temperature of 25oC, if the…

A: Vb =QKlnNoN        , Vb = volume of compact chamber =2×2×1 =4m3                                Q =…

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: Look at the following information for a completely mixed biological reactor: tank volume = 200 m³;…

A: Given- Tank volume V=200 m3 Flow rate=50 m3/day Substrate concentration=95 mg BOD5/L Ks=60 mg BOD5/L…

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: For an SBR process, the sludge takes 45 minutes to settle and the depth of liquid in the reactor is…

A: Given data- SBR process Sludge takes 45 minutes to settle. The depth of liquid in the reactor is 40%…

Q: Estimate the reduction in bacteria during the passage of wastewater that initially contains 106…

A: Initial Concentration = 106 org per ml V1 = 10000 m3 V2 = 20000 m3 V3 = 6000 m3 K = 0.1 per day Find…

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: 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: 2.52. A water sample has been analyzed and found to have a BOD, (20°C) of 7.00 g/m³ and a reaction…

A:

Q: shown in the figure Cons The flow rate through the reactor is 3 1.

A:

Q: 6.10. A reactor that behaves as an ideal PFR is to be used to carry out a BOD removal reaction. The…

A: Given BOD removal reactor with removal rate formula. Influent BODu = 150 g/m3 Effluent BODu= 20 g/m3…

Q: 3- Most hydraulic structure designs depends on: a- the firm flows in the river b-the maximum flows…

A:

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: (a) What is the maximum contaminant concentration that is expected at a location 2 km downstream of…

A: a) - Discharge(Q) = 2m3/s B= 5m    D= 1m  Velocity = QB*D V= 25*1 = 0.4m/s Time taken to travel…

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: n use sludge recycle.

A: Hi! Thank you for the question As per the honour code, We’ll answer the first question since the…

Q: A plug-flow reactor (PFR) has an influent flow with a concentration of 100 mg/L of A and a flowrate…

A: Reference : Water Resources, Hydrology. Given : Concentration and flow rate. Rate constant for first…

Q: e is 2 L/hr. What is the concentration of tracer in the reactor 1 hr minated? The reactor had an…

A: To solve this problem, we'll use the principle of mass balance in a continuously stirred tank…

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: The BOD3 of a wastewater is determined to be 270 mg/L at 20 o The rate constant (k) value is known…

A: Question is based on biochemical oxygen demand. BOD for 3 day at 20°cIs given in question. Value of…

Q: In a municipal wastewater treatment plant, the influent flow rate into a complete mixing activated…

A: it is a sludge containing a large concentrations of highly active aerobic micro organisms.…

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: For an SBR process, the sludge takes 45 minutes to settle and the depth of liquid in the reactor is…

A: total time allowed for one operation in SBR processT=45+20+10+60=135 minFlow rate Q=55000…

Q: A plug flow and a CFSTR biological reactor are both operating with an influent substrate…

A: Answer We need to calculate Volume of both the reactor first Volume of plug flow reactor is given by…

Q: The secondary NAAQS for SO2 is 0.5 ppm (for a 3-hour averaging time). Calculate the equivalent…

A: Given:- The secondary NAAQS for SO2 is 0.5 ppm To find:- The equivalent concentration in pg/m3

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: A reactor that behaves as an ideal PFR is to be used to carry out a BOD removal reaction. The…

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.