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B.O.D.5 LOADING
Biochemical Oxygen
Demand (BOD) refers to the amount of oxygen that would be consumed if all
the organics in water were oxidized by bacteria and protozoa (ReVelle and
ReVelle, 1988).
The first step in measuring BOD is to
obtain equal volumes of water from the area to be tested and dilute each
specimen with a known volume of distilled water which has been thoroughly
shaken to insure oxygen saturation. After this, an oxygen meter is used to
determine the concentration of oxygen within one of the vials. The
remaining vial is than sealed and placed in darkness and tested five days
later. BOD is then determined by subtracting the second meter reading from
the first. The following chart is provided for
engineers and designers to judge the loading to a Hoot System of any
wastewater that is classified as non-residential. In addition to non-residential
applications, a maximum number of individuals to be served by our systems
of various sizes are provided.
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