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![t 0.2303* (log [25-101/[25])/0.20 6.13 hours a) the required volume of CMFR 6.13h 3 m2/h 18.4 m3](http://img.homeworklib.com/questions/22838fa0-2cec-11eb-9104-030d548a8431.png?x-oss-process=image/resize,w_560)
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A CMFR is used to treat an input water stream flowing at a rate of 3.0...
A well-mixed lagoon is used to pre-treat an agricultural waste stream before it is sent to...
A well-mixed lagoon is used to pre-treat an agricultural waste stream before it is sent to the local municipal wastewater treatment plant. The waste stream has a flow rate of 400 m3/d and contains 300 mg/L of biodegradable waste. The waste decomposes via a first- order biodegradation process with a rate constant of 0.35 d-1. How large must the lagoon be in order to drive the concentration of waste down to 20 mg/L (as required by the municipal wastewater treatment...
11. A lagoon with constant volume of 450,000 m' is being used to treat two separate...
11. A lagoon with constant volume of 450,000 m' is being used to treat two separate waste streams. One has a flow rate of 5.0 m/s and a waste concentration of 500 mg/L. The other has a flow rate of 1 m/s and a waste concentration of 1500mg/L. The pollutant has a reaction rate coefficient (k) of 0.3/day. Assuming the pollutant is well mixed in the lagoon, find the steady-state concentration of pollutant in the lagoon. (10 Points)
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A lagoon with volume 1,200 m3 has been receiving a steady flow of a conservative waste at a rate of 100 m3/day for a long enough time to assume that steady-stateconditions apply. The waste entering the lagoon has a concentration of 10 mg/L. assuming completely mixed conditions,(a) What should be the concentration of pollutant in the effluent leaving the lagoon?(b) If the input waste concentration suddenly increased to 100 mg/L, what the concentration in the effluent be 7 days later?C)A...
9. A CMFR with a detention time of 5 hours is being used to remove a pollutant with a k 6 mgl-hr....
9. A CMFR with a detention time of 5 hours is being used to remove a pollutant with a k 6 mgl-hr. Prior to time zero, the influent concentration is 20 mg/L. Beginning at time zero, Cin is: Cin 60 10u(t 10) + 40u(t 20) with time in units of hours What in the effluent concentration after a long period of time in units of mg/? a. 10 mg/L b. 20 mg/L 40 mg/L ① 60 mg/L 2
9. A...
A CSTR is used to treat an industrial waste. If the reaction that destroys the pollutant...
A CSTR is used to treat an industrial waste. If the reaction that destroys the pollutant follows first-order kinetics with k = 0.2 d^-1 what is the outlet concentration after treatment? Assume the reactor volume is 500 m3, the volumetric flowrate of the single inlet and outlet is 50 m^3/day, and the pollutant concentration in the inlet is at a concentration of 100 mg/L.
2. A batch reactor is to be used to treat raw water to achieve 95% pollutant...
2. A batch reactor is to be used to treat raw water to achieve 95% pollutant removal. The pollutant has a second-order reaction rate constant of 0.35 L/(mg.day), what is the required residence time of water in the batch reactor, in days? 15 pts
1. A lagoon is to be designed to remove a nonconservative pollutant with an input flow...
1. A lagoon is to be designed to remove a nonconservative pollutant with an input flow of 150 m3/d, and the concentration is 20 mg/L. The volume of this lagoon is 3000 m², and the first order reaction rate of the pollutant is 0.20/day. Assuming it is a complete mixing, please calculate the pollutant concentration in the effluent. - (4 Marks). tt Assume that the gas above the soda in a bottle of soft drink is pure CO2 with a...
A lake with volume 10^3 m^3 is fed by a pollution-free stream with flow rate 5...
A lake with volume 10^3 m^3 is fed by a pollution-free stream with flow rate 5 m^3/min. A factory dumps 0.1 m^3/s of a non-conservative waste with concentration 100 mg/L into the lake. The pollutant has a reaction rate coefficient K of 0.2/day. Assuming the pollutant is well mixed in the lake; find the steady-state concentration of pollutant in lake.
A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow...
A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow rate in and out of the tank is 8 m'/day. Ifthe influent benzene concentration of 265 μg/L and the effluent concentration is 12 μg/L, what is the first order decay coefficient in day1?
A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow rate in and out of...
A lagoon with volume 1,000 m3 has been receiving a steady flow of a nonconservative pollutant...
A lagoon with volume 1,000 m3 has been receiving a steady flow of a nonconservative pollutant with reaction rate of .20/day at a rate of 100 m3/day for a long enough time to assume that steady-state conditions apply. The waste entering the lagoon has a concentration of 100 mg/L. Assume completely mixed conditions. If the input waste concentration suddenly decreased to 10mg/L, what would the concentration in the effluent be 10 days later?
11. A lagoon with constant volume of 450,000 m' is being used to treat two separate waste streams. One has a flow rate of 5.0 m/s and a waste concentration of 500 mg/L. The other has a flow rate of 1 m/s and a waste concentration of 1500mg/L. The pollutant has a reaction rate coefficient (k) of 0.3/day. Assuming the pollutant is well mixed in the lagoon, find the steady-state concentration of pollutant in the lagoon. (10 Points)
9. A CMFR with a detention time of 5 hours is being used to remove a pollutant with a k 6 mgl-hr. Prior to time zero, the influent concentration is 20 mg/L. Beginning at time zero, Cin is: Cin 60 10u(t 10) + 40u(t 20) with time in units of hours What in the effluent concentration after a long period of time in units of mg/? a. 10 mg/L b. 20 mg/L 40 mg/L ① 60 mg/L 2
9. A...
A CSTR is used to treat an industrial waste. If the reaction that destroys the pollutant follows first-order kinetics with k = 0.2 d^-1 what is the outlet concentration after treatment? Assume the reactor volume is 500 m3, the volumetric flowrate of the single inlet and outlet is 50 m^3/day, and the pollutant concentration in the inlet is at a concentration of 100 mg/L.
2. A batch reactor is to be used to treat raw water to achieve 95% pollutant removal. The pollutant has a second-order reaction rate constant of 0.35 L/(mg.day), what is the required residence time of water in the batch reactor, in days? 15 pts
1. A lagoon is to be designed to remove a nonconservative pollutant with an input flow of 150 m3/d, and the concentration is 20 mg/L. The volume of this lagoon is 3000 m², and the first order reaction rate of the pollutant is 0.20/day. Assuming it is a complete mixing, please calculate the pollutant concentration in the effluent. - (4 Marks). tt Assume that the gas above the soda in a bottle of soft drink is pure CO2 with a...
A lake with volume 10^3 m^3 is fed by a pollution-free stream with flow rate 5 m^3/min. A factory dumps 0.1 m^3/s of a non-conservative waste with concentration 100 mg/L into the lake. The pollutant has a reaction rate coefficient K of 0.2/day. Assuming the pollutant is well mixed in the lake; find the steady-state concentration of pollutant in lake.
A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow rate in and out of the tank is 8 m'/day. Ifthe influent benzene concentration of 265 μg/L and the effluent concentration is 12 μg/L, what is the first order decay coefficient in day1?
A tank operated as a CFSTR used to remove benzene from a flow stream is 1500 m3 in size. The flow rate in and out of...
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