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A Chemical manufacturer emits air with 250 PPM of toluene at 1 atm and 30 degrees C at a flow rate of 10,000 cubic meters per minute.The air is routed to a biofilter to control total emissions to less than 110 kg/day of toluene.The biofilter contains a mix if GAC and compost with 52% voids, it is 1.6 meters deep and 200 square meters. the pressure drop prior to the biofilter is 400 Pa.
(a)determine the control efficiency needed to meet the emission criteria.
(b)predict the total pressure drop including the biofilter,in inches of water.
Plot variation with depth from the top to Point C for σ' v and σ h when the soil is at rest and Estimate the undrained shear strength (c u ) of clay. (Assume the shear strengths to be 200 kPa and 2 kPa at Liquidity Index (IL) values of 0 and 1, res..
The tape is stretched over three equal spans. Calculate the tape corrections under the following conditions at field, temperature = 85ºF, pull = 18kg, E= 2.109 x 10 6 kg/cm 2
how to calculate the principle of shoring system in formwork analysis when the secondly floor upper has been poured ?
A civil engineering student contends that 60 mph is safe in a van because of the higher driver's eye height. If all other design inputs are standard, what must the driver's eye height in the van be for the student's claim to be valid
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..
The tank is insulated on the outside and the partition between the two sections is also an insulator. The partition can withstand a pressure differential across it of 400 kPa, before rupturing.
Briefly describe electron and hole motions in a p-n junction for forward and reverse biases; then explain how these lead to rectification.
what type of SO2 removal device before (in front of) or after (following) the particle collector would you use?
a freeway exit ramp has a single lane and consists entirely of a horizontal curve with a central angle of 90 degrees and a length of 628 ft. if the distance cleared from the centerline for sight distance is 19.4ft, what design speed was used
A log that is 2 ft in diameter is to be cut into a rectangular section for use as a simply supported beam. The material is wood select structural grade (Douglas Fir) with a specific gravity of 0.017 lb/in3.
the pressure ratio across the compressor is 9 and the maximum temperature is 827c.the turbine and comprssor processes are adiabatic with turbine efficiency of 90% and a compressor efficiency of 85%.
The wet bulb and dry bulb temperatures for humid atmospheric air (at 100 kPa) are measured to be 20 C and 25C respectively. Determine: a. using the psychrometric chart, the relative humidity b. using the psychrometric chart, the humidity ratio
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