With a catchment area of 50 hectares, a small water impounding reservoir with a capacity of 800 m3 was constructed. If the annual sediment prediction is 4.26 m3/ha, what is the probable life of the reservoir before its capacity is reduced to 400 m3? Assume a sediment trap efficiency of the dam of 25%

Q: Assume that concentration is directly proportional to flow rate (i.e., C=KQ). Determine and plot the…

A: Given Concentration is directly proportional to flow rate, C=KQ Total sediment load = 1150 tons   It…

Q: Draw a flow net for the weir shown in the Figure. Calculate the rate of seepage under the weir in…

A: We have to draw a flow net for the weir shown in the Figure. Calculate the rate of seepage under the…

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A: Waste water treatment for Ponds : Storm Event : It means rainfall event which produce more than 0.1…

Q: The concentration of ultimate BOD in a river entering the first of two lakes connected in series is…

A: Given, Concentration of BOD at entrance = 20 gm/m3 Rate coefficient, k = 0.35 d-1 Flow rate (Q) =…

Q: 1. Calculate the Darcy velocity. 2. The porosity of the sediment is 0.35. What is the actual…

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Q: stream with a flowrate of 10 m3/min and an MTBE concentration of 5 g/m3 flows into the first…

A: Inflow rate = Inflow concentration = Reservoir volume (V) = Time (t) = 1 hour = 60 minutes

Q: (b) Explain three common purposes of reservoirs in arid countries.

A: Reservoirs are the structure which is constructed by forming deep valley upstream of a river to…

Q: 4. A water treatment plant has a sedimentation basin with a width of 10.0 m a depth of 3.0 m, a…

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Q: A reservoir surface covers an area of 850 km2 and has an average depth of 18.7 m. The inflow of the…

A: Estimate the rate at which the depth of the reservoir is decreasing due to sediment accumulation…

Q: 3 wells are sunk in a confined aquifer in a straight line at 25 m intervals. If one end well is…

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Q: Flow through velocity in a horizontal flow type sedimentation tank is 0.32 m/s. If surface overflow…

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Q: A reservoir has an initial capacity of 45,000 acre-ft, with an average annual inflow of 63,000…

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Q: two sedimentation tanks operate in parallel. The combined flow to the two tanks is .1 m^3/s. the…

A: Total flow in parallel tank is equal to sum of flow in each tankFlow (Q) = Volume/detention…

Q: 10 m 9 m Sheet pile 24 m k = 10-3 cm/s Impermeable l=

A: Flow net can be drawn freely with with hand  Flow channels will be perpendicular to equipotential…

Q: 1a. Calculate the terminal settling velocity of a 15 μm clay mineral particle with a density of 2.65…

A: Given : d = 15 μm ρp = 2.65 g / cm3  T = 20 ˚C To find : Vs = Settling velocity Solution : According…

Q: A 60 km^2 lake (surface area) has an inflow from streams of 15 m^3/s with Cpin is 0.06 mg/L. A…

A: Given data  Lake surface area Inflow rate flow CPin settling velocity

Q: Q3: A reservoir with An initial capacity of (30000 acre-ft) .If the average annual inflow is (30000…

A: Initial capacity = 30000 acre-ft Average annual flow = 30000 acre -ft Avergae annual sediment =…

Q: 1. Calculate the specific storage if the storage coefficient from a pumping test in an aquifer…

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Q: The proposed dam shown in figure is 90 m long and the coefficient of permeability of the soil is…

A: Answer  We know that the quantity of water lost per day by seepage in m3 is given by Q = K*H*NfNd*L…

Q: The folowing treated effluent in a dairy factory at Mosul city is discharge to a stream; Q= 30 L's,…

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Q: An earth dam built on an impervious foundation has Horizontal & vertical permeabilities as 3.2 ×…

A: Given: Horizontal permeabilities, kH=3.2×10-2 mms Vertical permeabilities, kV=1.5×10-2 mms The full…

Q: Two observation wells penetrating into a confined aquifer are located 1500 m apart in the direction…

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Q: 6.26 A truck crashed 500 m away from farmland, and it has contaminated an uncon- fined aquifer. A…

A: Darcy's Law. Darcy's Law is a fundamental equation that relates the discharge of groundwater to the…

Q: For an unconfined aquifer, the specific yield is 20%, specific retention is 15%, and permeability is…

A: Given data- An unconfined aquifer- Specific yield Sy= 20%, specific retention SR = 15%,…

Q: 5. The runoff data for a river during a year along with the probable demands are given below. a. Can…

A: Part A  Since the Sum of total river flow data is greater than the sum of the demands so the demands…

Q: A new reservoir has a capacity of 12 3 Mm And its catchment area is 400 km². The annual sediment…

A: Given data- Capacity of reservoir=12 Mm3Area A=400 km2Annual yield=0.1 ham/km2To Find-Number of…

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A: Flow = Q = 50,000,000 litre/day Over flow rate = V = 25 m3/m2.day   It has been asked in the…

Q: 3.2 Calculate the time of concentration (I), with the following design inputs: • Hydraulic length =…

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Q: La.) Predičt thể trophič štătě ôf å (surface area) reservoir that is in steady state and receives a…

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Q: An earth dam is shown in the figure below. Determine the seepage rate. Given: a, = 46 degrees, a2 =…

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Q: Sedimentation is the process of allowing particles in suspension in water to settle out of the…

A: Given: Discharge for four clarifiersQ=1.5 MGD Q=1.5×3785.4 m3day       1 MGD=3785.4 m3day Q=5678.10…

Q: The completed flow net for the dam shown in Figure 1. The coefficient of permeability for soil is…

A: This question is related to the Seepage flow from Soil Mechanics. In this question we calculate…

Q: 2. Laguna Lake has a surface area of 708,800 sq.m. Based on collected data, Pasig river flows into…

A: Given that,  surface area = 708800 sqm inflow = 1.5 cu.m/s outflow = 1.25 cu.m/s evaporation rate =…

Q: PROBLEM. 2: The initial reservoir capacity is 3-10 m². Total annual water entering the reservoir is…

A: Initial reservoir capacity = 3×10⁷ m³Annual weight of sediment entering = 2×10⁹ NSpecific weight of…

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.