Braz. J. Chem. Eng. vol.19 número2

In this work, the NRTL (nonrandom, two-liquid) model was used to correlate the liquid-liquid equilibria for aqueous two- phase polymer-salt solutions, expressed in mass fraction

subtilis R14 in a batch bioreactor using a molasses medium, and a preliminary study of separation of biomass from the fermentation broth by sedimentation.. MATERIAL

(1998) developed a nonlinear planning model for refinery production that can represent a general topology. The model relies on a general representation of refinery processing units

parameters can affect membrane morphology and final properties of the membrane, such as the distance between the spinneret and the precipitation bath (air gap), temperature of

Enzymatic polishing of biotreated effluent removed up to 75% of the remaining phenol in a four-hour reaction with 46 U.mL -1 of tyrosinase and 50 mg.L -1 of chitosan (used

The variation in concentration of glycerol as carbon source from 1 to 6% v/v showed that with 3%v/v glycerol, the highest biomass concentration (4.05 g/L) and the greatest

The effects of the following variables were studied on the yield and productivity of the system: total reducing sugar (TRS), concentration in feeding, recycle flow in the

In addition to the significant increase in the COD removal efficiency and the reduction in treatment time, the hydrolysis of the fat present in the wastewater using the crude