The following are the results of an unseeded BOD test for two wastewater samples: Wastewater DO (mg/L) 8.5 8.5 DOS (mg/L) 8.4 4.6 Dilution factor 0.03 0.017 A B The 5-day BOD of the wastewater B is: a) 200,0 mg/l b) 229.4 mg/ c) 13.75 mg/l d) 17.65 mg/1 In the previous question, if the reaction rate constant k for wastewater B is 0.22/day, the ultimate carbonaceous BOD is: a) 343.86 mg/l b) 249.19 mg/l c) 229.4 mg/1 d) 689 2 mg/1 What can you conclude about each of the following for wastewater A? BOD, value Type of wastewater Recommended BOD measurement method