Biological Oxygen Demand of Water

Biological Oxygen Demand of Water

Biochemical oxygen demand (BOD) is defined as the amount of oxygen required by bacteria while stabilizing decomposable organic matter under aerobic conditions. The results are commonly expressed in terms of weight of oxygen required per unit volume of the initial sample.

BOD determinations are made by measuring residual dissolved oxygen in a water sample or a diluted aliquot after an incubation period (usually 5 days at 20° C). The BOD test has little geochemical significance, but it is widely used to determine the strength of domestic and industrial wastes in terms of the oxygen that they will require if discharged into a natural water course.

It is generally considered to be the most useful way of expressing stream pollution loads and for comparing one set of conditions with another.

Next Topics…


Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes: <a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <strike> <strong>

...more from Dr. Gordon Snyder
Dr. Gordon Snyder on Google

Phone: (206) 440-3008 •

Home | Site Map | Privacy Policy | Customer Service | Contact Us | Links

Visa Master Card AmEx PayPal

Please visit our family of websites

School water science fair projects online store online store online store online store

Scrapbook card making paper crafts online store
Scrapbook supplies donation progrm
Scrapbooking - card making classes
Scrapbook newsletter
Scrapbook store map contact us
Urban Scrapbooker blog
Urban Scrapbooker videos

Whales Without Borders

Water filters, water test kits, water equipment
Battle Bottled Water Info
Water Logged Blog

Music, music composition, restore vinyl records online store
spam prevention

All our websites are different...
Website created by Gordon Snyder and hosted by:
Last updated on:
Family Friendly Website Safe Surf Sites Water Friendly Website Award Internet Rating Content Assoc. © 1998 - 2013 Gordon Snyder & Consultants, Inc., All rights reserved .