A stream containing no biochemical O2 demand (obviously a hypothetical situation) has a DO of 5.00 mg/L and a flow rate of 8.70 m3/s.  The temperature of the stream is 15 degrees Celsius.  The average velocity in the stream is 0.174 m/s.  The average depth is 5 m.  Determine the reaeration coefficient and the rate of reaeration.

Q: Problem (1) Find the quantity of discharge q in meter cube per second per meter width for the…

A: To Determine Quantity of discharge, q in m³/s/m

Q: has the dimensions of 16.0 m² (4 m by 4 m). At 22°C, the density of the oil is 913 kg m-3 and the…

A: given data,FINDi)verify boundary layer laminar or notii)thickness of boundary layer at 2m in the…

Q: 2. In an unconfined aquifer, the drawdown is 2m at a radial distance of 9m from a well after two…

A: Given:- The drawdown from the unconfined aquifer = 2 m The radial distance from a well = 9 m  Time…

Q: Dissolved chloride in a concentration of 500 mg/L is being advected with flowing groundwater at a…

A:

Q: The flow through the aquifer can also be calculated from the equation

A: Q=-T *dh/dx=qx  Where  T= Transmisibility h= head  X= distance between two points q = Discharge per…

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: There is a flood that takes place above the ground surface table up to 1.3 m in height. Assume the…

A: The soil comprises soil solids and void space.  The void space may be filled with water or air, or…

Q: A confined aquifer is pumped with a constant rate through abstraction well. There is a big lake of…

A: Confined aquifer- It is aquifer that completly saturated with water. Top and bottom both layers are…

Q: Consider a cylindrical oil reservoir of radius 1.2 km and height 20 m having in situ pressure of 45…

A:

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: The loss of energy head in a hydraulic jump formed in a rectangular channel is (4.25 m) the Froude…

A:

Q: A 200 mm diameter well which fully penetrating a confined aquifer of thickness 25 m is pumped at a…

A:

Q: To clarify water containing particles with a diameter of 120 m, a settling tank (32 m long, 2.1 m…

A: Diameter of particle=120Tank dimentionLength=32mWidth=2.1mDepth=1.6mparticle density is 2.5…

Q: A meat processing factory's raw effluent has a five day BOD at 20°C of 1760 mg/l. If the k value is…

A: Part a.

Q: In a homogeneous unconfined aquifer of area 3.00 km², the water table was at an elevation of 102.00…

A:

Q: The flow net constructed for the dam is shown in the figure below. Taking the coefficient of…

A: Flow net for a dam is given- From the figure-Nf=no. of flow channels=3,Nd=No. of equipotential…

Q: An oil of viscosity 9 poise is flowing through a horizontal pipe of 60 mm diameter. If the flow is…

A:

Q: For a system of heterogeneous, linear, and horizontal flow, and starting from the continuity…

A: Suppose a system is given below,

Q: 2. The figure shown below is a cross section of a concrete dam. The subsoil is anisotropic and has…

A: Given: The permeability in horizontal direction is 0.8 x 10 in/sec. The permeability in vertical…

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: 1.25 m head of water is flowing over a 36-1m high spillway, hence, the percentage of energy…

A: He = 1.25m H = 36 + 1.25 = 37.25m C(coefficient of spillway discharge) = 2.6(assuming)  {vary from…

Q: Losses from lake A (left) feed lake B (right). The distance between them is 3.5 km. The water level…

A: The problem is about calculating the rate of flow in the pore between two lakes. The water level…

Q: B- A 20cm diameter well penetrates fully a confined aquifer of thickness 25m .when the well is…

A:

Q: The hydraulic conductivity of a homogeneous sandy/gravelly aquifer is 3 x 10-2 cm/sec. The…

A:

Q: In a soil column study, a solute with a concentration of 1000 µg/mL is being pumped from the bottom…

A: To solve this problem, we need to use the advection-dispersion equation, which describes the…

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

A: Solution: Given Data: Specefic gravity of the floc and adhered suspended material=1.005 (a) Compute…

Q: Oil (density = 846 kg/m³ and kinematic viscosity = 6.2e - 4 m²/s) is being discharged by a 49 mm…

A: Dynamic viscosity is defined as that the resistance that is provided in the movement of the one…

Q: (a) Using a clearly annotated diagram, describe the major processes in a tertiary level wastewater…

A:

Q: A tube well having a diameter 15 cm fully penetrates a confined aquifer of thickness 10 m. The…

A: Confined aquiferDiameter of well (d) = 15cm Thickness of confined aquifer (B) = 10m Discharge from…

Q: Located in north Derbyshire astride the River Derwent, Derwent Dam impounds the Derwent Reservoir,…

A: given- peak volume V=9.64 million m3tempertaure=16.8oC

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: For the laminar flow of an oil having dynamic viscosity, μ = 2Pa in a 0.5 m diameter pipe, the…

A: Given data- Laminar flow- Dynamic viscosity of oil- μ= 2 Pa, Diameter of the pipe D=0.5 m, Parabolic…

Q: Two reservoirs are connected through a homogeneous and isotropic aquifer having hydraulic…

A: Given data- Hydraulic conductivity K=25 m/day, Porosity n=0.3, Length L=2 km=2000 m, To Find- The…

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: 1. The radial flow pump produces 0.8 m of frictional head losses within the pump. If 3.10 m of head…

A: Input head = 3.10mOutput head = 0.8mTo find:The pump efficiency

Q: certain liquid flows in a 10 mm diameter smooth pipe that is 20 m long. The total head lost in the…

A: Given Reynolds number Re=1800 <2000 so laminar flow so friction factor…

Q: A petroleum reservoir is discovered at 3000 psia and 130°F. If the reservoir fluid is represented by…

A: To find : Which fluid will exhibit retrograde behaviour at reservoir condition.

Q: A rectangular channel 9 m wide carries 7.65 m3/s when flowing 0.90 m deep. What is the specific…

A:

Q: A waste water stream (flow=2 m³/s, ultimate BOD=90 mg/l) is joining a small river (flow=12 m³/s,…

A: Given- Waste water flow Qw=2 m3/s, BODw=90 mg/L, River flow QR=12 m3/s, BODR=5 mg/L, Area A=50 m2,…

Q: well is located 25 m away from a impervious boundary as shown in Figure Q4. The  well diameter is 4…

A: Prob 3: Step 1:  Well diameter - 4 m The drawdown at the well - 5 m Hydraulic Conductivity -2x10-4…

Q: confined aquifer of 20-m thick and having a permeability of 40 m/day. The drawdown in the well is 3…

A: To find percentage increase

Evaporation

This topic is majorly taught in various undergraduate and postgraduate degree courses of: