 A wastewater contains 8 mg/L O2, 10-3 mol/L NO3 - , and 10-2mol/L organic matter [CH2O] (no significant exchanges withatmosphere occur) After bacterial metabolism is complete, which ofthe following statements will be true? a) No [CH2O] remains b) SomeO2 remains c) Some NO3 - remains d) Denitrification consumed more[CH2O] than respiration e) The composition of water remainsunchanged
