Search results
Results from the WOW.Com Content Network
BOD test bottles at the laboratory of a wastewater treatment plant. Biochemical oxygen demand (also known as BOD or biological oxygen demand) is an analytical parameter representing the amount of dissolved oxygen (DO) consumed by aerobic bacteria growing on the organic material present in a water sample at a specific temperature over a specific time period.
BOD Bottle BOD test bottles at the laboratory of a wastewater treatment plant. BOD Bottle or an incubation bottle is a main apparatus used for the Biological Oxygen Demand (BOD) test. During the five-day BOD or BOD5 test process, the BOD bottle is used for incubating diluted samples under the 20 °C or 68 °F of temperature.
Because the Ultimate BOD is so time consuming, the 5-day BOD has been almost universally adopted as a measure of relative pollution effect. There are also many different COD tests of which the 4-hour COD is probably the most common. There is no generalized correlation between the 5-day BOD and the ultimate BOD.
The difference in DO and the dilution factor are used to calculated BOD 5. The resulting number (usually reported in parts per million or milligrams per liter) is useful in determining the relative organic strength of sewage or other polluted waters. The BOD 5 test is an example of analysis that determines classes of materials in a sample.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
There are test to measure it, but it is not the tests. This shoudl be made clear. The way the lead/content is written, it states that BOD is the method/test. We should really start out with a basic description of what BOD is, why it's an important measure, etc, and then spend some time talking about how it's measured.
If you missed out on the new episode this past weekend and need to catch up, you can watch new episodes of Yellowstone after the fact through Philo or purchase the episode through Amazon Prime Video.
Molecular change, when the molecules and microbes increase or decrease the most, impacts the body’s risk of chronic disease, the ability to fight off disease, and the pace of aging, per the study.