Predicting Optimum Dilution Factors for BOD Sampling and Desired Dissolved Oxygen for Controlling Organic Contamination in Various Wastewaters

Figure 7

The estimated organic decomposition rate (x) correlated to the calculated 5-day dissolved oxygen (DO₅) and experimental dilution factor (df) for various wastewater influents: (a) storm wastewater (STM) data analysis from water characteristics in Poland, Luxembourg, and Nigeria storm wastewater treatment plants; (b) industrial wastewater (IND) data analysis from water characteristics in GGL, Coca-Cola, and Kumasi Abattoir industrial wastewater treatment plants; and (c) domestic wastewater (DOM) data analysis from water characteristics in North Sewage, Al-Diwaniyah, and Jordan domestic wastewater treatment plants.

(a)

(b)

(c)