Question

Liquid waste from a pharmaceutical industry contains the following substances: 100 mg / L diethyl ether (CH3CH2OCH2CH3) 150 mg / L 2-propanol 10 mg / L sulfide 100 mg / L p-nitrophenol, C6H4OHNO2 (non-biodegradable)
a. Calculate COD and TOC
b. Calculate B0D5 if the k10 value is 0.15 / day.
c. After processing, the BOD5 value is 20 mg / L and k10 is 0.10 / day.
Calculate COD

Answer 1

Answer:

a i think... hope this helps

Explanation:

Answer 2

Answer:

ans.... c ...............