Question

Aerobic degradation of an organic compound by a mixed culture of organisms in waste watercan be represented by the following reaction.C3H6O3+ a O2+ b NH3→C5H7NO2+ d H2O + e CO2a. Determine a, b, c, d, and e, if YX/S= 0.4 g X/g S.
b. Determine the yield coefficients YX/O2and YX/NH3.c. Determine the degree of reductions for the substrate, bacteria, and RQ for the organisms

Answer 1

Answer:

Step 1 of 3

Organic compounds can be degraded by aerobic degradation by a mixed culture of organisms in waste water can be represented by the following reaction:

a) Perform a material balance on each element:

C-balance: 3 = 5c + e ……(1)

O-balance: 3+2a = 2c + d + 2e ……(2)

H-balance: 6 + 3b = 7c + 2d ……(3)

N-balance: b = c ……(4)

……(5)

Solve 5 equations for unknowns:a, b, c, d and e.

Result: a = 1.41; b = 0.318; c = 0.318; d = 2.364; e = 1.41