ABSTRACT

To calculate the pounds of BOD or suspended solids removed each day, you will need to know the mg/L BOD or SS removed and the plant flow. Then you can use the mglL to lbslday equation:

(mg/..) (MGD) (8.34) = lbs/day Removed flow h / g d

For most calculations of BOD or SS removal, you will not be given information stating how many mglL BOD or SS have been removed. This is something you will calculate based on the mglL concentrations entering (influent) and leaving (effluent) the system.