Methods for Estimating Oxygen Demand of Liquid Peach Waste

SUMMARY— The amount of total solids (TS) in liquid peach waste has high correlations with biochemical oxygen demand (BOD) and chemical oxygen demand (COD), and determination of TS required less time, equipment, and technique than the other methods for estimating oxygen demand. In a small number of observations, removing large suspended particles from the waste by filtering or settling decreased COD, but the treatment effects on BOD were inconsistent. BOD changed with time at temperatures above freezing, but COD did not.