Modeling of permeate flux decline and permeation of sucrose during microfiltration of sugarcane juice using a hollow-fiber membrane module

摘要: Abstract Microfiltration (MF) of centrifuged sugarcane juice was used as a pre-clarification step prior to further clarification. MF performed with the objectives achieving maximum flux, minimum retention sucrose and rejection total solids well removal microorganisms from permeate keeping nutritional physico-chemical profile intact. In this regard, experiments were done using polyacrylonitrile-based membrane filtration area 0.027 m2 pore size 0.1 μm. A detailed investigation effects different operating conditions, namely transmembrane pressure TMP (35, 69, 104 138 kPa) cross flow velocity CFV (0.123, 0.246 0.369 m/s) on productivity quality undertaken. The steady-state flux ranged 5.41 6.23 l/m2∙h for domain conditions studied herein. Profiles concentration in modeled gel layer controlling model under framework boundary analysis. optimized found be 104 kPa at 0.369 m/s, yielding 6.04 l/m2∙h having polyphenols 104.8 g/l 9.38 mg GAE/100 ml, respectively. Total (26%) turbidity (98%) removed great extent during along remarkable improvement clarity (3 times). Microbiological evaluation confirmed that, successfully reduced viable plate count by 5 log CFU/mL scale yeast mold 4 log CFU/mL scale.