Question

1. Aerobic degradation of an organic compound by a mixed culture of MO in waste water can be represented by the following overall reaction:

C3H6O3 + aO2+bNH3---------------cC5H7NO2 + dH2O + eCO2

a) Determine coefficients a,b,c,d and e if Y x/s = 0.4 g of dry wt. cells/g of substrate

b) Determine Y x/o2 ,Y x/s

c) Determine the degree of reduction of substrate and bacteria.

d) Determine RQ of the organism.

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Answer 1

In a mercury thermometer, a glass tube is filled with mercury and a standard temperature scale is marked on the tube. With changes in temperature, the mercury expands and contracts, and the temperature can be read from the scale. Mercury thermometers can be used to determine body, liquid, and vapor temperature.