Separation of yeast from alcoholic fermentation in small hydrocyclones

摘要: Abstract In the fermentation process of ethanol production, yeast Saccharomyces cerevisiae is recovered and recycled to a new stage fermentation. This separation challenge because small low density. Thus, hydrocyclone an interesting alternative it uses same principle centrifugal separation, requires maintenance can be readily sterilized. work aimed study from using hydrocyclones. A factorial experimental design (3 4 ) was applied, results were used for determination empirical mathematical models that describe capacity, total efficiency flow ratio as functions different geometric variables pressure drops. Total efficiencies obtained between 36.54% 92.02%, capacities 0.1183 0.4579 m 3 /h ratios ranging 31.74% 84.30%. The forces generated within these devices also investigated, which ranged 291 4153 g . effect on cell viability evaluated largest drop conditions, verifying reduction below 7%.