An industrial waste-water stream is fed to a stirred-tank reactor continuously and the cells are recycled back to the reactor from the bottom of the sedimentation tank placed after the reactor. The following are given for the system: F = 100 l/h; S0 = 5000 mg/l; mm = 0.25 h-1 ; Ks = 200 mg/l; α (recycle ratio) = 0.6; C (cell concentration factor) = 2; Y ^M _X/S = 0.4. The effluent concentration is desired to be 100 mg/l.  Determine the required reactor volume.

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#Question id: 20539

#SCPH28 | Zoology

Aromatic hydrocarbons including benzene, toluene, ethylbenzene and xylene collectively referred as BTEX compounds. Which of them are not considered as carcinogenic?

1. Benzene

2. Toluene

3. Ethylbenzene

4. Xylene

Which of them is a correct option?

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#Question id: 7295

#SCPH06 I Botany

If a long-day plant has a critical night length of 9 hours, which 24-hour cycle would prevent flowering? (SS)

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#Question id: 2141

#SCPH06 I Botany

Facilitated diffusion through a biological membrane is:

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#Question id: 822

#SCPH05 I Biotechnology

Detergents commonly used protein denaturations by interacting with

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#Question id: 13079

#SCPH06 I Botany

Name of that sophisticated equipment which used to the oligonucleotide, that serve as a primer in RAPDs is usually obtained by in vitro DNA synthesis,