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[ÇóÖú] Biological Wastewater Treatment, Third Edition¿ÎºóÌâ

Õª×ÔBiological Wastewater Treatment, Third Edition  
page125-126

3.Using the half-reaction technique, write the molar stoichiometric equation for microbial
growth for each of the following situations:
a. Aerobic growth on domestic wastewater with ammonia nitrogen as the nitrogen source.
The yield is 0.60 mg biomass COD formed/mg substrate COD removed.
b. Growth on a carbohydrate with nitrate as the terminal electron acceptor and ammonia
as the nitrogen source. The yield is 0.50 mg biomass COD formed/mg substrate COD
used.
c. Growth on a carbohydrate with nitrate as the terminal electron acceptor and nitrogen
source. The yield is 0.40 mg biomass COD formed/mg substrate COD used.
d. Normalize them with respect to the electron donor.

4. Convert the molar stoichiometric equation from Study Question 3a into a mass-based
equation with the electron donor as the reference component.

5. Convert the molar stoichiometric equation from Study Question 3a into a COD-based
equation with the electron donor as the reference component.

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