Question

A test bottle containing only seeded dilution water has it DO final 1mg/l in 5 days incubation. A 300ml bottle filled with 10 ml of waste water and rest seeded dilution water experience of initial DO 6.2mg/l in the same time period. What should be the 5 days BOD of waste water

Answer 1

Answer:

200 m/l

Explanation:

BOD = (DO initial -DO final)*Dilution factor.

= (7.8-4.4)*(295/5).

= 200.6 mg/lit