Ultrafiltration of xanthan gum fermentation broth: process and economic analyses

摘要

Energy consumption and operating costs for xanthan recovery from dilute fermentation broth using ultrafiltration and alcohol precipitation were studied. Ultrafiltration can be used to concentrate xanthan fermentation broth from 2.5 To 15/100 (w/v) xanthan. The effects of xanthan concentration, transmembrane Pressure difference and shear and pumping rates on the performance of Ultrafiltration were studied. Engineering design equations for modelling filtrate Flux and pressure drop during ultrafiltration of xanthan broth were also Flux and pressure drop during ultrafiltration of xanthan broth were also Developed and used in the process analysis.