ABSTRACT

POPULATION EQUIVALENT Industrial or commercial wastewater generally has a higher organic content than domestic was tewater. Population equivaltnt calculations equate these concentrated flows with the number of people that would produce a domestic wastewater of that strength. For a domestic wastewater system, each person served by the system contributes about 0.17 or 0.2 lbs BOD/day . To determine the population equivalent of a wastewater flow, divide the lbs BODIday content by the lbs BOD/day contributed per person (e.g. 0.2 lbs BODIday).