Regarding prokaryotic reproduction, which statement is correct?

#Question id: 14794

#Section 5: Bioprocess Engineering and Process Biotechnology

The continuous sterilization includes 

#Question id: 365

#Section 4: Fundamentals of Biological Engineering

Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.

#Question id: 3020

#Section 2: General Biology

During which phase of the bacterial growth curve does the total number of viable cells decline?

#Question id: 14534

#Section 1: Engineering Mathematics

#Question id: 14269

#Section 5: Bioprocess Engineering and Process Biotechnology

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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