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Influent sample collected from a wastewater treatment plant was analyzed for various solids concentrations. Results indicated concentrations of Total Volatile Solids (TVS), Total Fixed solids (TFS), and Total Dissolved Solids (TDS) to be 300 mg/L, 80 mg/L, and 150 mg/L respectively. If the wastewater flow rate into the treatment plant is 10 million gallons per day (mgd), calculate the mass of suspended solids loading per day.
HOCL is added to water in a tank as a disinfectant. After equilibrium is reached it is found that the pH of the water in the tank is 8.2 and the gas phase partial pressure is the head space of the tank is 0.2E-7 atm.
The viscosity of the film of oil separating the piston from the cylinder is 0.020 lb.s/ft. Calculate the force required to maintain this motion.
Compute the maximum acceptable tensile load Pu, on an angle L6x4x3/4 when connected to both legs. The 4 in. leg contains a single gage line of 7/8in. diameter bolts, and the 6in.
The behaviour of structural materials using comparative statement when they are formed into structural member
How to draw bending moment diagram for this shape and the value of the moment in critical sections assume that the distributed load (w) KN/M and the concentrated load
The maximum gage pressure is known to be 8MPa in a spherical steel pressure vessel having a 250mm diameter and a 6mm wall thickness. Knowing that the ultimate stress in the steel used is (sigma u)= 400MPa, determine the factor of safety with respe..
Laboratory analysis methodology to be used. Give details on the standard methods, instrument and detection limits. Standard methods for heavy metals analysis exist
a) Determine the total shortening of the pile in terms of F, L, A, and E; b) If F=96 kips, L=40 ft., A=100in2, and E=1.5 x 106 psi, how much does such a pile shorten?
After falling from rest from a height of 32 m, a 0.45 kg ball rebounds upward, reaching a height of 22 m. If the contact between ball and ground lasted 1.5 ms, what average force was exerted on the ball?
Draw the influence line for the support reaction at A and calculate the support reaction at point
Briefly explain the purpose of the International Space Station, and list the name of all space agencies involved in building and operating it.
What is the concentration of tracer in the reactor 1 h after tracer addition is terminated? The reactor had an initial concentration of tracer of 1.0 mg/L when tracer addition commenced.
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