answersLogoWhite

0

The Biochemical Oxygen Demand (BOD) of a sample is the amount of dissolved oxygen required by aerobic microorganisms to breakdown organic matter in the sample.

The test is simple:

Measure the Dissolved Oxygen content of the sample (a)

Place in a sealed darkened bottle

Incubate for 5 days at 20'C

Measure the Dissolved Oxygen content of the incubated sample (b)

Generally you're using this test to analyse contaminated water, so you'll want to dilute it first - it may be that aren't enough aerobic microorganisms present to give you a measurable result, in which case you'll need to inoculate the sample with a suitable culture.

The BOD of the sample = a - b

BOD is expressed in mg O2/L of sample.

Extra Credit

Generally you're using this test to analyse contaminated water, so you'll want to dilute it first - it may be that aren't enough aerobic microorganisms present to give you a measurable result, in which case you'll need to inoculate the sample with a suitable culture.

The BOD of a diluted innoculated sample = ((a - b) - BOD of inoculated culture) * dilution factor

User Avatar

Wiki User

14y ago

What else can I help you with?

Related Questions

When was Bod - series - created?

Bod - series - was created in 1975.


When did Bod - series - end?

Bod - series - ended in 1984.


What is BOD and COD of spent wash?

COD=100 What is Bod


Point c is in the of BOD?

Adjacent Angle


What did bod plan to do with the card that held jacks name?

bod threw it


Who is Christian Yuzicapi-bod?

He is christian yuziacapi bod> he likes boys


How to calculate BOD value in a sample?

if unseeded, BOD = (D1-D2)/Pif seeded, BOD = ((D1-D2)-(B1-B2)f)/PD1 = DO of diluted seeded wastewaterD2 = DO of wastewater after incubationB1 = DO of diluted seed sampleB2 = DO of seed sample after incubationf = ratio of seed volume in seeded wastewater test to seed volume in BOD test on seedP = decimal fraction of wastewater sample used. (vol. of wastewater)/(vol. of dilution water plus wastewater)Maybe that helps


When was Van Bod born?

Van Bod was born on 1978-03-22.


What is the basic difference between BOD incubater and Bacteriological incubater?

I want the basic difference of BOD incubater and Bacteriological incubater? We are used BOD incubater as a bacteriological incubater?


How many lbs of BOD are in 20000 gallons of water containing 1100 mgl BOD?

183.48


When was Destiny - Van Bod album - created?

Destiny - Van Bod album - was created in 2011.


What are the differences between seeded and unseeded BOD?

When diluted water is added in surface wastewater to take immediate BOD is called unseeded and after 5 days of period wastewater received saturated oxygen from diluted water is called now seeded BOD.