BOD (Biological Oxygen Demand) - The Water Quality Indicator
Published on by Karl-Uwe Schmitz, President at Aqua Equip Technologies LLC (AET LLC) in Technology
BOD – Biological oxygen demand is the most important used assessment to determine water quality.
Its a measurement unit and stands for the needed amount of oxygen by aerobic biological organisms to break down organic matter.
COD in comparison stands only for everything that can be chemically oxidized and is, therefore, less specific.
The biochemical process of BOD removal can be described with the equation:
Organic matter + O2 -> Co2 + H20
As higher the degree of water pollution as more organic matter is present and as more Oxygen is needed for the oxidization, hence, as higher is the BOD level.
Learn more about BOD on AET's blog.
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