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?

________________________

TLS Online TPP Program

#Question id: 5767

#SCPH28 | Zoology

 An enzyme that repairs thymine dimers in visible light in E. coli

TLS Online TPP Program

#Question id: 5428

#SCPH28 | Zoology

If trait are governed by polygenic. If plant genotype AABB  ( 8 cm height ) were cross with aabb ( 2 cm height ) produced F1 and allowed to selfing . which of the following phenotypic height are not observe in F2 plant if all gamete participate in fertilization ?

TLS Online TPP Program

#Question id: 434

#SCPH01 Biochemistry

 Anabolic and catabolic reactions in eukaryotes can occur simultaneously in cells. This is possible because ________.

TLS Online TPP Program

#Question id: 3714

#SCPH28 | Zoology

Which DNA polymerase is most responsible for chain elongation in E. coli?

TLS Online TPP Program

#Question id: 3024

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

In a rapidly multiplying bacterial population, cell numbers increase