In a system in which the solids in the biomass cannot be ignored, the F:M ratio is equal to: Q(S, - S) VX, Q(So- S) V(X, - X.) QSo VX, QSo VX
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- Explain the Main components of the vibroflot.Which type of activated carbon is most suitable for gasoline vapor recovery?A drinking water treatment plant wants to compare the efficacy of three different solid coagulants, Alum [Al(OH)3(s)], Lime (CaCO3(s)), and Ferric Chloride (FeCl3(s)), for removing the phosphate (PO43-) level to 1 mg/L. The following are the equilibrium reactions [and the respective equilibrium constants (or solubility products, Ksp)] that result in phosphate removalfor each solid, the second reaction being more relevant in each case: Alum: Al(OH)3(s) ↔ Al3+ + 3OH- AlPO4(s) ↔ Al3+ + PO43- Ksp = 9.84 x 10-21 Lime: CaCO3(s) ↔ Ca2+ + CO32- Ca3(PO4)2(s) ↔ Ca2+ + PO43- Ksp = 1 x10-27 Ferric Chloride: FeCl3 (s) ↔ Fe3+ + 3Cl- Fe(PO4)(s) ↔ Fe3+ + PO43- Ksp = 1x10-26.4 What concentrations of Fe 3+, Al3+, and Ca2+ will be needed to maintain a phosphate concentration of 1 mg/L? What would be the best choice of solid coagulant for the Drinking Water Treatment Plant?…
- An activated-carbon bed that is 12 ft x 6 ft x 2 ft deep is used in a benzene recovery system. The system is on-line for one hour and is then regenerated for one hour.When analyzing the stack gases, the analysis is reported in what unit?V3. An aerated BOD bottle is filled with substrate and microbial cells. You have determined the following parameters for this mixture: - Substrate yield, Y=0.60mg/L biomass /mg/L substrate - Specific growth rate, μ=2.0 day −1 - Rate of substrate utilization =15,000mg/L−hr - Substrate concentration =275mg/L - Half-saturation constant =25mg/L Determine: a. The microbial growth rate/biomass utilization rate. 9000mg/L−hr b. The maximum specific growth rate. 2.18 / day c. The biomass concentration. 4500mg/L
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