An activated-sludge waste treatment system is required to reduce the amount of BOD₅ from 1000 mg/l to 20 mg/l at the exit. The sedimentation unit concentrates biomass by a factor of 3. Kinetic parameters are µ_m = 0.2 h-1 , K_s = 80 mg/l, k_d = 0.01 h-1 , and Y ^M _X/S = 0.5 g MLVSS/g BOD₅. The flow of waste water is 10000 l/h and the size of the treatme nt basin is 50,000 l. What value of the recycle ratio must be used?

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#Question id: 2088

#SCPH05 I Biotechnology

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#SCPH28 | Zoology

An example of promoter that can respond to anaerobic condition is 

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#Question id: 2139

#SCPH06 I Botany

A process not involving the fusion of two membranes or two regions of the same membrane is:

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Lac Operon will be turned on when

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#I Life Science/ Life Sciences Group – I-V

Within a normally functioning kidney, red blood cells can be found in ________.