Find the pollutant concentration leaving each pond

Assignment Help Civil Engineering
Reference no: EM13559347

The two-pond system shown below is fed by a stream with a flow rate of 1.0 MGD and a non-conservative pollutant concentration of 20.0 mg/L. The rate of biological consumption is 0.3 day-1. Find the pollutant concentration leaving each pond if the volume of the first is 5.0 million gallons and the volume of the second is 3.0 million gallons.

Reference no: EM13559347

Questions Cloud

Calculate the hydraulic conductivity of the aquifer : A pumping well of 0.75-m radius fully penetrates an unconfined aquifer of 24-m thickness and produces at a rate of 10 L/s. After a long period of pumping well is 1.6 m. The drawdown in another observation well 60 m from the pumping wel
Estimate the weight of concrete in a four-lane highway : Estimate the weight of concrete in a four-lane highway segment that begins as a 3% grade climb from 1000 feet altitude to 4000 feet and then a 6% downgrade to 2500 feet
Highlight the area of the graph that represents work : Consider a piston-cylinder device. Within this device, a quasi-equilibrium process occurs for which the pressure changes according to the equation p = 300V2 + 1000 V + 1000, with p, pressure, in psfa, and V, volume
What length of the existing level highway must be reconstruc : At a railroad crossing, an overpass must be built centered over the tracks at a height of 24ft and be 200ft long. the existing highway has a design speed of 50mi/hr. what length of the existing level highway must be reconstructed to provide an approp..
Find the pollutant concentration leaving each pond : The two-pond system shown below is fed by a stream with a flow rate of 1.0 MGD and a non-conservative pollutant concentration of 20.0 mg/L. The rate of biological consumption is 0.3 day-1.
At what point on the expressway should the motorist : A motorist traveling at 55 mph on an expressway intends to exit from the expressway using an exit ramp with a maximum allowable speed of 30 mph. At what point on the expressway should the motorist step on her brakes in order to reduce her speed to th..
Determine the drivers perception/reaction time before : A test of a driver’s perception/reaction time is being conducted on a special testing track with wet pavement and a driving speed of 55 mph. When the driver is sober, a stop can be made just in time to avoid hitting an object that is first visible 52..
What distance away from the truck was he when he first : A motorist traveling at 55 mph down a grade of 5% on a highway observes an accident involving an overturned truck ahead of him which completely blocked the road
Find when and the distance that a catches up with b : Two objext A and B are moving along the same line. At the time t=0, B is 75ft ahead of A. The acceleration of A is 1.8ft/s^2 and the acceleration of B is -1.3ft/s^2. The velocity of A is 32ft/s and the velocity of B is 51ft/s.

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine thickness of viscous sublayer in a smooth pipe

Determine the thickness of the viscous sublayer in a smooth 20 cm diameter pipe, if the Reynolds number is 25000.

  What is the thickness of the viscous sublayer

The influent BOD5to a primary settling tank is 345 mg/L.The average flow rate is 0.050 m3/s.If the BOD5 removal efficiency is 30%,How many kg of BOD5 are removed in the primary settling tank each day?

  What will the freeway density

What will the freeway's density and level of service be before and after the ban? (Assume that the trucks are removed and all other traffic attributes are unchanged)

  Determine the minimum required dimension for t so that

The wood specimen is to be loaded in a testing machine until it fails in tension. The ultimate normal strength of the wood is ?ult = 1800 psi and the ultimate shear strength of the wood is ult = 800 psi.

  Working of real estate salesperson

You are a real estate salesperson working for Good Earth, Realtors, Inc. You receive 50 percent of all commissions received by the firm (net of MLS fees) for which you were either the listing agent or the selling agent.

  Derive a formula for resistance of the spool as a function

You find a spool of pure copper wire while snooping through your brother's purse. The wire has a diameter of 0.3 millimeter and a length of 200 meters. A) Derive a formula for the resistance of the spool as a function of temperature.

  Compute the wavelength corresponding to the frequencies

Provided that the amplitude is sufficiently great, the human ear can respond to longitudinal waves over a range of frequencies from about 20 Hz to about 20000Hz. Compute the wavelength corresponding to these frequencies

  Determine what is the rate of discharge with rubble masonry

A 5-m wide rectangular open channel lined with rubble masonry (n=0.025) and laid on a slope of 0.0004. If the depth of flow is 3 m, what is the rate of discharge (m3/s)

  Explain how to estimate the et losses for the area in 1 year

It the mean annual runoff of a drainage basin of 10000 km^2 is 140 m^3/s, and the average annual precipitation is 105 cm, estimate the ET losses for the area in 1 year. What are your assumptions

  Calculate what is the peak discharge at the reach outlet

Use the Muskingum method to route a flood through a reach a river. The base flow is 100 cfs, and the incoming flood flow increases 50 cfs every 2 hr over a 6 hr period and the subsides at the same rate.

  Determine the liquid limit

The following data were recorded from a liquid limit test on a clay using the Casagrande cup device.

  Determine max flexural stress due to two concentrated loads

A simple beam has a 24 foot span and a W16 X 50 section. Determine the maximum flexural stress due to two concentrated loads, both 20 kips, at the 1/3 point and the 2/3 point (8 feet and 16 feet) on the beam.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd