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an industrial intermediate, 2, 4-dimethylphenol, has been spread on a surface soil as a 500-mg/L solution. the weekly volume placed on the soil was 25% of the pore volume for the top 0.5m of soil. the soil is a clay loam characterized by an iron oxide content of 4.6% and 2,9% organic carbon. provide a qualitative evluation of the site as a basis for a phase I property transfer evluation.
The force exerted on the hand causes torsion of the humerus. Let us assume the cross-section of this wrestler's humerus is approximated as hollow (the marrow has little structural strength) with an outer diameter of 19.0 mm and an inner diameter o..
What is the velocity head expressed in atmospheres for a rapid filter operated at a surface loading rate of 475 m/d when the local porosity is 0.40?
Draw a graph showing the effluent concentration as a function of time for : a. Zero order CMFR and PFR with the same influent concentration and reaction rate. b. First order CMFR and PFR with the same influent concentration and reaction rate.
An ethanol plant distills alcohol from corn. The distiller processes 2.0 t/h of feed containing 15% alcohol and 82% water; the rest is inert material. The bottoms (waste) produced is 85% of feed and contains 94% water, 3.5% alcohol, and 2.5% inert..
A wastewater treatment plant has a flow of 35,000 m3/day. Calculate the mass of sludge wasted each day (QwXw, expressed in kg/day) for an activated-sludge system operated at a solids retention time (SRT) of 5 days
Design a column base plate for a W10 x 33 column supporting a service dead load of 20 kips and a service live load of 50 kips. The column is supported by a 12-inch x 12-inch concrete pier. Use A36 steel and f 'c = 3 ksi. Answer 12 x 12 x 5/8
an equal-tangent sag vertical curve is designed with the PVC AT STation 109 + 00 and elevation 950 ft, the PVI at station 110 + 77 and elevation 947.34ft,and the low point at station 110 + 50 . Determine the design speed of the curve.
Part A Determine the tension developed in cable AB for equilibrium of the 350-lb crate Part B Determine the tension developed in cables AC for equilibrium of the 350-lb crate. Part C Determine the force developed along strut AD for equilibrium of ..
the hull of a boat has a volme of 150m and the total mass of the boat when empty is 8560kg. determine how much load this boat can carry without sinking in a lake.
For satisfactory operation, the static pressure at the pump inlet must not be lower than -6 m of water gage. Determine the smallest standard commercial pipe that will give the required performance.
If the pressure in pipe B is decreased 10 kPa and the pressure in pipe A remains unchanged, determine the new reading along the inclined leg of the mercury manometer.
If they plan to increase their savings by 5% each year, how much must they invest in the first year given that they expect to earn 4% per year on their investment?
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