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We are trying to remove tetrachloroethene (C_2Cl_4) from ground water by air stripping process. The maximum...
256 Chapter 6 Absorption and Stripping of Dilute Mixtures 6.26. Stripping of benzene from wastewater in...
256 Chapter 6 Absorption and Stripping of Dilute Mixtures 6.26. Stripping of benzene from wastewater in a packed column. Wastewater at 600 gpm, containing 10 ppm (by weight) of benzene, is to be stripped with air in a packed column operating at 25°C and 2 atm to produce water containing 0.005 ppm of benzene. The packing is 2-inch polypropylene Flexirings. The vapor pressure of benzene at 25 C is 95.2 torr. The solubility of benzene in water at 25° C...
PART B) Also, The plant operator wants to increase the stripping factor by 25%. How can he accomp...
PART B) Also, The plant operator wants
to increase the stripping factor by 25%.
How can he accomplish this?
What should be the new air-to-water
ratio?
9-2. Provide a preliminary design ofan air stripping columntoremove toluene from ground- water. Levels of toluene range from 0.1 to 2.1 mg/L and this must be reduced to 50 ug/L. A hydrogeologic study of the area indicates that a flow rate of 110 gal/min is required to ensure that contamination not spread. Laboratory investigations...
Please be clear and readable thank you Pr. 2 (20 pts) SO2 is absorbed from air...
Please be clear and readable thank you
Pr. 2 (20 pts) SO2 is absorbed from air to water at 20°C and 1 atm in a wetted wall column with 40 mm ID and 1 m length. A gas stream containing 3 vol- % SO2 and 97 vol- % air is fed to the column at the bottom with a mass velocity of 0.05 m®/min and flows upward. Exit gas stream contains 1 vol-% SO2. Pure water is fed to the...
Question 1 A forced draft countercurrent water cooling tower is to cool water from 43.3 to...
Question 1 A forced draft countercurrent water cooling tower is to cool water from 43.3 to 26.7 C. The air enters the bottom of the tower at 23.9 °C with a wet bulb temperature of 2 °C. The value of H for the flow condition is H 0.533 m the heat transfer resistance in the liquid phase h very high compared to mass transfer coefficient in the gas phase. Calculate the tower height needed if 1.5 times the minimum air...
2. An object of 5 kg is released from rest 1000 meters above the ground level...
2. An object of 5 kg is released from rest 1000 meters above the ground level and allowed to fall under the influence of gravity. Assuming that the force due to air resistance is proportional to the velocity of the object with proportionality constant k = 50 kg/sec determine the formula for the velocity of the object 3. A rocket having an initial mass mo kg is launched vertically from the surface of the Earth. The rocket expels gas at...
In a collision of sufficient force, automobile air bags respond by electrically triggering the ex...
In a collision of sufficient force, automobile air bags respond
by electrically triggering the explosive decomposition of sodium
azide (NaN3) to its elements. A 43.398 g sample of
sodium azide was decomposed, and the nitrogen gas generated was
collected over water at 22°C. The total pressure was 798.8 mmHg.
How many liters of dry N2 were generated?
An atmospheric chemist studying the pollutant SO2
places a mixture of SO2 and O2 in a1.14 L
container at 825.7 K and 2.3...
Help? Q2) In a collision of sufficient force, automobile air bags respond by electrically trigger...
Help?
Q2) In a collision of sufficient force, automobile air bags
respond by electrically triggering the explosive decomposition of
sodium azide (NaN3) to its elements. A 43.398 g sample
of sodium azide was decomposed, and the nitrogen gas generated was
collected over water at 22°C. The total pressure was 798.8 mmHg.
How many liters of dry N2 were generated?
Q3) An atmospheric chemist studying the pollutant SO2
places a mixture of SO2 and O2 in a1.14 L
container at 825.7...
Answer: 10.12 A key is dropped from a bridge that is 40.0 m bove the water....
Answer: 10.12 A key is dropped from a bridge that is 40.0 m bove the water. At the moment the key is released a model boat is 10.5 m away from the bridge and moving towards the bridge with constant velocity. If the key falls directly into the model boat, calculate the Velocity of the boat. Answer: 11. [2pt] Arie is aimed honuntaily a target located 345 m away. The ballet hits the target 25 cm below the aim point....
256 Chapter 6 Absorption and Stripping of Dilute Mixtures 6.26. Stripping of benzene from wastewater in a packed column. Wastewater at 600 gpm, containing 10 ppm (by weight) of benzene, is to be stripped with air in a packed column operating at 25°C and 2 atm to produce water containing 0.005 ppm of benzene. The packing is 2-inch polypropylene Flexirings. The vapor pressure of benzene at 25 C is 95.2 torr. The solubility of benzene in water at 25° C...
PART B) Also, The plant operator wants
to increase the stripping factor by 25%.
How can he accomplish this?
What should be the new air-to-water
ratio?
9-2. Provide a preliminary design ofan air stripping columntoremove toluene from ground- water. Levels of toluene range from 0.1 to 2.1 mg/L and this must be reduced to 50 ug/L. A hydrogeologic study of the area indicates that a flow rate of 110 gal/min is required to ensure that contamination not spread. Laboratory investigations...
Please be clear and readable thank you
Pr. 2 (20 pts) SO2 is absorbed from air to water at 20°C and 1 atm in a wetted wall column with 40 mm ID and 1 m length. A gas stream containing 3 vol- % SO2 and 97 vol- % air is fed to the column at the bottom with a mass velocity of 0.05 m®/min and flows upward. Exit gas stream contains 1 vol-% SO2. Pure water is fed to the...
Question 1 A forced draft countercurrent water cooling tower is to cool water from 43.3 to 26.7 C. The air enters the bottom of the tower at 23.9 °C with a wet bulb temperature of 2 °C. The value of H for the flow condition is H 0.533 m the heat transfer resistance in the liquid phase h very high compared to mass transfer coefficient in the gas phase. Calculate the tower height needed if 1.5 times the minimum air...
2. An object of 5 kg is released from rest 1000 meters above the ground level and allowed to fall under the influence of gravity. Assuming that the force due to air resistance is proportional to the velocity of the object with proportionality constant k = 50 kg/sec determine the formula for the velocity of the object 3. A rocket having an initial mass mo kg is launched vertically from the surface of the Earth. The rocket expels gas at...
In a collision of sufficient force, automobile air bags respond
by electrically triggering the explosive decomposition of sodium
azide (NaN3) to its elements. A 43.398 g sample of
sodium azide was decomposed, and the nitrogen gas generated was
collected over water at 22°C. The total pressure was 798.8 mmHg.
How many liters of dry N2 were generated?
An atmospheric chemist studying the pollutant SO2
places a mixture of SO2 and O2 in a1.14 L
container at 825.7 K and 2.3...
Help?
Q2) In a collision of sufficient force, automobile air bags
respond by electrically triggering the explosive decomposition of
sodium azide (NaN3) to its elements. A 43.398 g sample
of sodium azide was decomposed, and the nitrogen gas generated was
collected over water at 22°C. The total pressure was 798.8 mmHg.
How many liters of dry N2 were generated?
Q3) An atmospheric chemist studying the pollutant SO2
places a mixture of SO2 and O2 in a1.14 L
container at 825.7...
Answer: 10.12 A key is dropped from a bridge that is 40.0 m bove the water. At the moment the key is released a model boat is 10.5 m away from the bridge and moving towards the bridge with constant velocity. If the key falls directly into the model boat, calculate the Velocity of the boat. Answer: 11. [2pt] Arie is aimed honuntaily a target located 345 m away. The ballet hits the target 25 cm below the aim point....
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