Why the COD is within norms and BOD out of norms ?
Why the COD is within norms and BOD out of norms ?
(OP)
The norm for COD is 250 mg/l and the actual value is 45 mg/l.The norm for BOD is 30 mg/l ,actual is 40 mg/l per day and 90 mg/l for 5 days. What is the reason for this relative to a waste water treatment plant ?





RE: Why the COD is within norms and BOD out of norms ?
RE: Why the COD is within norms and BOD out of norms ?
Some compounds are not biodegradable, but will chemically oxidized. These compounds will show a high COD and zero BOD.