The BOD5 value of a waste-water feed stream to an activated-sludge unit is S0 = 300 mg/l, and the effluent is desired to be S = 30 mg/l. The feed flow rate is F = 2× 10^7 l/day. For the recycle ratio of α = 0.5 and a steady-state biomass concentration of X = 5 g/l, Use the following kinetic parameters:

 

calculate Required reactor volume (V). 

_______________10^6

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#Question id: 14630

#Section 1: Engineering Mathematics

The series whose n^th term is sin 1/n is

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#Question id: 14139

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

Which of the following statement is incorrect about sequence similarity and sequence identity? 

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#Question id: 1837

#Section 2: General Biology

What is the single best answer to the question “Which method is most characteristically used by trypanosomes to escape the immune response?”

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#Question id: 14182

#Section 5: Bioprocess Engineering and Process Biotechnology

Aerobic degradation of benzoic acid by a mixed culture of microorganisms can be represented by the following reaction.

                Determine the yield coefficients YX/O2

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#Question id: 14725

#Section 1: Engineering Mathematics