please answer in 80 minutes , just to the point , for all the parts

Part 2. Design of a stripping column to separate ammonia from water. Context. Domestic wastewater has a high concentration of nitrogen in the form of dissolved ammonia. Ammonia (NH3) in municipal and industrial wastewater is an important contaminant due to its toxic effects. Therefore, to protect the environment and human health, it is necessary to remove it from wastewater. This can be achieved by stripping with air. Design problem. A municipal wastewater stream flows at 500 m3h and is contaminated with 80 mg L' NHz (molar fraction 8.47 x 10). Based on UK regulations, the maximum allowable ammonia concentration in effluent water is 1.5 mg L' (molar fraction 1.59 x 10). A stripping column is designed to operate at 80 C and 1 atm. Random plastic saddle packing is available, and mass transfer data from the manufacturer is given in Appendix 3. Data available: Relative molecular masses: M:(water) = 18 g mol'; M(ammonia) = 17 g moll. Density: P (water) = 1000 kg m. Henry's volatility constant for NH3 in water at 80 C is KHpX = 8 atm. Appendix 3. Mass transfer data for random plastic saddle packing. (9) Draw the process flow diagram of the stripping column, including known flowrates and concentrations. [2] (h) [2] (1) Calculate the molar flowrate of the wastewater stream flowing into the stripping column, stating your assumptions. The column operates with a G/L ratio of 1.6/1 (where G is gas molar flowrate and L is liquid molar flowrate). Calculate the gas molar flowrate and the molar fraction of ammonia in the gas exiting the column. [4] 0) Calculate Noc (overall number of transfer units in the gas phase) for the packed stripping column. 5 [5] (k) Calculate Hog (overall height of a transfer unit in the gas phase) and the height of packing in the stripping column. You may assume a diameter of 6 m. [7] ( [Total 45 marks] Part 2. Design of a stripping column to separate ammonia from water. Context. Domestic wastewater has a high concentration of nitrogen in the form of dissolved ammonia. Ammonia (NH3) in municipal and industrial wastewater is an important contaminant due to its toxic effects. Therefore, to protect the environment and human health, it is necessary to remove it from wastewater. This can be achieved by stripping with air. Design problem. A municipal wastewater stream flows at 500 m3h and is contaminated with 80 mg L' NHz (molar fraction 8.47 x 10). Based on UK regulations, the maximum allowable ammonia concentration in effluent water is 1.5 mg L' (molar fraction 1.59 x 10). A stripping column is designed to operate at 80 C and 1 atm. Random plastic saddle packing is available, and mass transfer data from the manufacturer is given in Appendix 3. Data available: Relative molecular masses: M:(water) = 18 g mol'; M(ammonia) = 17 g moll. Density: P (water) = 1000 kg m. Henry's volatility constant for NH3 in water at 80 C is KHpX = 8 atm. Appendix 3. Mass transfer data for random plastic saddle packing. (9) Draw the process flow diagram of the stripping column, including known flowrates and concentrations. [2] (h) [2] (1) Calculate the molar flowrate of the wastewater stream flowing into the stripping column, stating your assumptions. The column operates with a G/L ratio of 1.6/1 (where G is gas molar flowrate and L is liquid molar flowrate). Calculate the gas molar flowrate and the molar fraction of ammonia in the gas exiting the column. [4] 0) Calculate Noc (overall number of transfer units in the gas phase) for the packed stripping column. 5 [5] (k) Calculate Hog (overall height of a transfer unit in the gas phase) and the height of packing in the stripping column. You may assume a diameter of 6 m. [7] ( [Total 45 marks]