BOD5 of a wastewater sample is 470 mg/ L at 20 oC. Given that the BOD rate constant is 0.25/ day at 20 oC, calculate the BOD5 at 30 oC. In a BOD test at the MUST EQTEcoL, the initial DO = 7.5 mg/ L and after 5 days DO was 4.5 mg/ L. calculate: 1. The BOD5 2. Ultimate cBOD 3. And BOD remaining after 5 day