Define when the oil will be free of contamination

Assignment Help Civil Engineering
Reference no: EM13315948

An oil storage area abandoned 19 yrs ago had oil spilled on the ground and saturated the soil at a concentration of 400mg/kg of soil. A recent soil sample shows a concentration of 20mg/kg. A man says that the oil was reduced at a rate of 20mg/kg each year and in one year will be free of contamination. Is this a good assumption?

Reference no: EM13315948

Questions Cloud

Computing an allocation for a planned socialist : Computing an allocation for a planned socialist economy is prone to great computational difficulties.
Derive the equation for a slightly compressible fluid : Assume that there is only one phase present and that the formation is homogeneous, but anisotropic. Further, assume that viscosity, formation volume factor, and the areas available for flow are constant spatially. Last, assume 3-D flow using x, y,..
Which point has the larger radial acceleration : A disk spins with increasing angular velocity. Point Q on the disc is twice as far from the axis of rotation as in point P. Which point has the larger radial acceleration
Us economy diverges from each of these assumptions : The presumption of efficiency for capitalism is based on the model of perfect competition. Explain the assumptions underlying the model of perfect competition. Provide an example showing how the US economy diverges from each of these assumptions.
Define when the oil will be free of contamination : An oil storage area abandoned 19 yrs ago had oil spilled on the ground and saturated the soil at a concentration of 400mg/kg of soil. A recent soil sample shows a concentration of 20mg/kg.
Prepare a systems proposal : Prepare a Systems Proposal that includes an executive summary and a problem statement. Refer to the guidelines and recommended format for the systems proposal.
What caused the change in private saving why did public : Suppose that output increases to 209. Redo the calculations in (a) and (b). Explain (in terms of savings and investment) the reason for the interest rate change.
Will velocity change if the hose is draped over the handrail : An above ground pool needs to be drained. The drained water will be used to irrigate a garden and some trees at the bottom of the hill, the pool sits at the top of. You have a 1 inch diameter hose to drain the pool.
What is the representation of public saving : In the national income accounting identity showing the equality between national saving and investment, what is the representation of private saving and what is the representation of public saving?

Reviews

Write a Review

Civil Engineering Questions & Answers

  Determine the maximum allowable axial tensile force

A 4-cm- diameter rod of aluminum 7075-T6 is to subjected to an axial tensile force such that the factor of safety based on the yield stress on 1.75. Find the maximum allowable tensile force.

  Determine angle of internal friction for effective stress

A consolidated-undrained type of test is performed. The sample fails (shears) when the total all-around confirming pressure is 45 kpa and the total axial pressure is 97 kpa.

  Estimate low-dose cancer risk from occupational inhalation

the recommended threshhold limit value ( TLV-ACGIH) air concentration for occupational exposure to water-insoluble hexavalent chromium Cr (VI) is 0.01 mg/M^3. this concentration is based on an assumption that the individual is generally healthy an..

  What is the residence time of air in the room if rate is use

On average each student produces 1 kg of carbon dioxide per day. The recommended ventilation rate of fresh air to avoid excessive carbon dioxide buildup is 8 L per second per student.

  Determine the deflection of a simple uniformly loaded

Determine the deflection of a simple uniformly loaded beam by the Ritz method,using first one term, then two terms, adn finally three terms in a sine series. Why does the coefficient of sin2piex/L vanish?

  What is the pressure on the soil if theta is 45 degrees

A pipe is to be installed under the ground on a bed of aggregate 6 in. thick. The entire weight on the aggregate from pipe and soil above the pipe is 1800 lbs. per linear foot of pipe. What is the pressure on the soil if theta is 45 degrees

  Determine crest height of suppressed weir that should be use

If the maximum (total) depth of water that can be accommodated at the weir is 1m and the width of the channel is 4m, determine the crest height of a suppressed weir that should be used to measure the flowrate.

  Determine volume of reactor needed for each hydraulic regime

The kill of pathogens by disinfection in water treatment can be described by a first order reaction. Complete a reactor comparison for a batch reactor, CSTR and PFR for disinfection. The treatment plant produces 100 L/s of water.

  Compute difference in the weights of dry gravel in a 10 ton

A stockpile of gravel that has a water content of 6% is rained on so that its water content increases to 9%. Compute the difference in the weights of dry gravel in a 10 ton truckload taken from the pile before and after the rain.

  Define mechanical engineering dynamics

Important information about Mechanical engineering dynamics, A 3000 lb car rests on a horizontal street out of gas with its brakes locked.

  How many gallons of water are contained in the tank

Develop a table that shows: 1) How many gallons of water are contained in the tank if the volume is measured in increments of 1 ft from the bottom to the top. 2) The mass of water at each increment, expressed in lbm.

  Find concentration of silver at chloride concentration raise

The solid silver chloride is placed in water. It reaches equilibrium and has a solubility product constant of 1.8 x 10-10. What is the concentration of silver if the chloride concentration is raised to 3M

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