An incinerator burns 180 lb/hr chlorobenzene and has a stack gas containing 7% oxygen by volume on a dry basis. Determine the percent excess air .
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An incinerator burns 180 lb/hr chlorobenzene and has a stack gas containing 7% oxygen by
volume on a dry basis. Determine the percent excess air
.
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- A thermal oxidizer incinerator operates as a plug flow reactor at a temperature of 250 deg C. The first order rate constant for vinyl chloride removal is 45/sec at 250 degrees C and the inside diameter of the incinerator (which is shaped like a cylinder) is 1 m. (a) If the pollutant (Vinyl chloride) enters the incinerator at a flow rate of 3,000 m3/min and it is desired to remove 99.99% of the pollutant, what should the length of the incinerator be? (b) What is the length of the incinerator if the desired removal is increased to 99.99995%?Transcribed Image Text:1-6. In a biological waste treatment system, solids may enter in the influent, be created or destroyed by biological growth or decay, and may leave in the effluent. Con- sider a waste treatment plant treating 1m'/s of an influent containing 55 mg/L of degradable organic solids. The wastewater also contains 180 mg/L of dis- solved organic carbon (DOC), which may be degraded. For every gram of dissolved organic matter that is degraded, the overall reaction converts a portion of the material into CO, and H20, and another portion into 0.4 g of new biomass. Analytically, this biomass and the degradable solids in the influent are both quantified as volatile suspended solids (VSS); that is, the degradable solids in the influent and the new biomass that grows in the reactor are indistinguishable from one another. (a) In a particular system, the dissolved organic matter (i.e., the substrate, S) is removed from solution at an overall rate (including both the conversion…Given the following pump data: 10 ft-positive suction head, 198 ft - discharge head, 16 ft- friction loss, 421 gpm - flow, Motor eff. Is 80% and Pump eff. Is 90%. What is the bhp? O23.10 bhp O 25.47 bhp O 26.53 bhp O24.16 bhp
- A control, process for a glass furnace will remove boron from the 1400 oF furnace by cooling the exhaust to 275 oF in an evaporative cooler to condense B2O3. The cooled exhaust will then pass through a ro verse-jet filter to remove suspended dust, including the B2O3 particulates. Draw a preliminary flow sheet for the process, indicating any auxiliary equipment needed, List any operating difficulties you think might arise with this system.The second stage nitrification process is :presented by the following equation Nitrobacter 2NO2+ 02 -> 2NO3 Give the value of Oxygen Required for this ?stage in Ib / IbN oxidized إختر أحد الخيارات 4.57 .a O 1.0 .b O 1.14 .c O 3.43 .d OA 1,200 gpm WTP is being designed for treating iron and manganese. The influent manganese concentration is 80 mg/L and the iron concentration is 90 mg/L. How much oxygen (mg/L DO) from aeration is needed for design? Assuming that aeration only removes 85% of Fe and Mn, how much potassium permanganate is needed (mg/L)? Design standards require 30 days of chemicals onsite. Assuming that the chemicals onside are dry, how many lbs of potassium permanganate are required? If the treatment plant is to operate two filter cells at a time, what is the required SA of each cell, assuming SOR of 2.5 gpm/sqft?
- Problem 7 - 69 Gasoline at 20°C (sp. gr. 0.719, u = 0.000292 Pa-s) flows at the rate of 2 L/s through a pipe having an inside diameter of 60 mm Determine the Reynolds number Ans: 104.400Hello, I have an equalization tank with the following dimensions: Tank Dimensions: Height: 5.15 meters Length: 10.3 meters Width: 30.48 meters Total volume calculated: 1616.8116 m³ The design flow is 2.5 MGD. I want to treat the pH and alkalinity with soda ash. pH: 4.9 (desired: 7) Alkalinity [mg/L]: 44 mg/L (desired: 200 mg/L) How can I calculate how much soda ash I need to treat the pH and alkalinity in the equalization tank?A rapidly mixed tank consists of a treatment unit used to disinfect a solution. The solution enters the 2000 m3 tank at a rate of 0.4 m³/s. The pollutant contains 7.94 CFU per liter and has no 0 mg/l of chlorine. The treatment unit uses a stock solution containing 750 mg/L which is released a rate that will cause the chlorine concentration in the tank to be 2 mg/L. The chlorine reacts with the water in such a way that it is depleted at a rate (in mg/L-h) given by rd = (-0.45 / h) Cci. When exposed to chlorine, the bacteria die off at a rate (in cells/L-s) given by: *Cci -Cpact "bact = - 1mg + Ccl a) Calculate the required flow rate in L/s of the stock solution when the system is operating at steady state, including a schematic of the system. b) Determine the bacterial concentration (in CFU/L) thar should be expected in the effluent from the tank?
- A rapidly mixed tank consists of a treatment unit used to disinfect a solution. The solution enters the 2000 m3 tank at a rate of 0.4 m3/s. The pollutant contains 7.94 CFU per liter and has no 0 mg/l of chlorine. The treatment unit uses a stock solution containing 750 mg/L which is released a rate that will cause the chlorine concentration in the tank to be 2 mg/L. The chlorine reacts with the water in such a way that it is depleted at a rate (in mg/L-h) given by rcl = ( -0.45 / h) Cal. When exposed to chlorine, the bacteria die off at a rate (in cells/L-s) given by: (0.03 CCL Cbact Tbact 1mg + Ccl a) Calculate the required flow rate in L/s of the stock solution when the system is operating at steady state, including a schematic of the system. b) Determine the bacterial concentration (in CFU/L) thar should be expected in the effluent from the tank?A rapidly mixed tank consists of a treatment unit used to disinfect a solution. The solution enters the 2000 m3 tank at a rate of 0.4 m3/s. The pollutant contains 7.94 CFU per liter and has no 0 mg/l of chlorine. The treatment unit uses a stock solution containing 750 mg/L which is released a rate that will cause the chlorine concentration in the tank to be 2 mg/L. The chlorine reacts with the water in such a way that it is depleted at a rate (in mg/L-h) given by rcl = ( -0.45 / h) CCl. When exposed to chlorine, the bacteria die off at a rate (in cells/L-s) given by:a) Calculate the required flow rate in L/s of the stock solution when the system is operating at steady state, including a schematic of the system.b) Determine the bacterial concentration (in CFU/L) thar should be expected in the effluent from the tank?1. A CM reactor receives influent containing 10 mg/L of tracer dye for 2 hours. The tracer addition is terminated but the flowrate of water is maintained. The volume of the reactor is 10 L and the flowrate is 2 L/hr. What is the concentration of tracer in the reactor 1 hr after the dye addition is terminated? The reactor had an initial concentration of tracer of 1 mg/L when the tracer addition commenced.