centrations does not significantly affect the permeate flux parameter
or the coefficient of enrichment. In addition, the effect of carboxylic
acids on the process of pervaporation was studied, and the
presence of lactic acid at a concentration of 10.9 mmol L1 was
observed to increase both permeate and water flux; however, the
coefficient of enrichment was reduced to 12.2%.
As previously discussed, in tests where a flow rate of
5.5 106 m3 s1 was used, a comparison of the pervaporation of
the fermentation broth and that of the standard mixture of ethanol
and water indicates that the best results are achieved with the
fermentation broth. Furthermore, in the specific case of ethanol
produced from lignocellulosic banana waste, greater values were