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It has been reported that a peat biofilter treating styrene had a maximum elimination capacity of 100 g/m^3-hr,and a critical load of between 60-75 g/m^3-hr. Further investigation reveals that a 97% efficiency was acheived at a load 40 g/m^3-hr. Assume that tomeet a local odor ordinance you must design for at least a 90% removal efficiency. Use this information to estimate the demensions of the biofilter needed to treat 10,000 m^3/hr of air (at 30 C and 1 atm) containing 200 ppm styrene being emitted from a boat- manufacturing plant. Assume the bed must be at least 1 meter deep, and that the surface loading cannot exceed 1.5m/min.
Presedimentation can reduce the suspended solids concentration of raw river water from 500 mg/L to 200 mg/L. How many pounds of dry solids does this represent per million gallons?
What would be the reading on a barometer containing Benzene at 20 degrees Celsius at a time when the atmospheric pressure was equivalent to 12.3 m of water
A rod was held on point B and the telescope is inclined so that the horizontal cross line of the transit intersects the rod at the 5.2 ft mark. If the reading on the vertical limb of the transit was +25° 19',
how many cubic yards of aggregate must be ordered for a road base 16 inches thick and 2000 feet long with a top width of 30 ft, if the side slopes are one on one, or 45 degree
A pump in a large industrial hall containing 30 liters gasoline breaks down, causing the gasoline to spill into a 3 m2 sump surrounding the pump. The liquid pool is ignited by sparks. Assume the combustion to be 70% effective and the heat loss due..
Determine the preconstruction and post construction vertical stress imposed on the soil at a point 2 m below the center of the foundation area (assume westergaard conditions applied)
a. Use algebra and linearity of the expectation operator to find the answer. b. Explain how the transformation affects the drawing of the scatterplot we used to develop our understanding of covariance, and therefore why the answer to part a. shoul..
Two chambers, A and B both have manometers with the same fluid with specific gravity 1.4. When h(sub a) = 6 cm and h(sub b) = 4 cm, what is the gage pressure in chamber A
The vertical post is secured by three cables. The cables are pre-tensioned so that the resultant of the cable forces F, Q, and P is directed along the z-axis. If F =120lb, find P and Q.
What ground distance will be measured if grid distance is 2158m and Orthometric height = 850m, Scale factor Sf = 0.9999943, Geoidal separation N = 27m, Ra = 6371km
At what depth will 400 cfs flow uniformly in an earth lined (n = 0.025) trapezoidal canal of base width 15 ft having side slopes 1 on 3 if the canal is laid on a slope of 1 in 10,000.
Determine the number of completely mixed chlorine contact chambers each having a detention time of 30 min that would be required in a series arrangement to reduce the bacterial count of a treated effluent form 10^6 to 14.5 organisms/mL
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