How many liters of methanol would be required daily to removethe nitrogen from a 200,000-L/day sewage treatment plant producingan effluent containing 50 mg/L of nitrogen? Assume that thenitrogen has been converted to NO3- in the plant. The density ofCH3OH is 0.791 kg/L.
The denitrifying reaction is: 6 NO3- + 5 CH3OH + 6 H+(Denitrifying bacteria) → 3 N2(g) + 5 CO2 + 13 H2O