please help. thank you in advance

Q27 (15 pts) - The City of Tampa has an activated sludge WWTP that treats 21 million L of wastewater per day. The effluent from the WWTP flows out at 20 million L day. The recycle flow rate is 23 million L/ day. The influent and effluent BOD5 are 380mg/L and 18mg/L, respectively. The biomass concentrations in the waste sludge and clarifier effluents are 4,400mg/L and 15mg/L, respectively. The solids retention time is 5 days. A process flow schematic is shown below. 1) What is the total biomass discharge rate (in kg/ day)? (10 pts) 2) Calculate the observed yield (Yobs) (5 pts) Q27 (15 pts) - The City of Tampa has an activated sludge WWTP that treats 21 million L of wastewater per day. The effluent from the WWTP flows out at 20 million L day. The recycle flow rate is 23 million L/ day. The influent and effluent BOD5 are 380mg/L and 18mg/L, respectively. The biomass concentrations in the waste sludge and clarifier effluents are 4,400mg/L and 15mg/L, respectively. The solids retention time is 5 days. A process flow schematic is shown below. 1) What is the total biomass discharge rate (in kg/ day)? (10 pts) 2) Calculate the observed yield (Yobs) (5 pts)