Population Equivalent or Unit Loading Factor

When a wastewater characterization study is required, pertinent data are often unavailable. When this is the case, population equivalent or unit per capita loading factors are used to estimate the total waste loadings to be treated. If we know the BOD contribution of a discharger, we can determine the loading placed upon the wastewater treatment system in terms of equivalent number of people. The BOD contribution of a person is normally assumed to be 0.17 lb BOD/day. To determine the population equivalent of a wastewater flow, divide the lb BOD/day content by the lb BOD/day contributed per person (e.g., 0.17 lb BOD/day).

Guide to Alternative Fuels

Guide to Alternative Fuels

Your Alternative Fuel Solution for Saving Money, Reducing Oil Dependency, and Helping the Planet. Ethanol is an alternative to gasoline. The use of ethanol has been demonstrated to reduce greenhouse emissions slightly as compared to gasoline. Through this ebook, you are going to learn what you will need to know why choosing an alternative fuel may benefit you and your future.

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