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Analysis of fouling mechanisms and membrane cleaning during ultrafiltration of bee venom

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Version 2 2020-01-27, 15:24
Version 1 2019-02-18, 06:09
journal contribution
posted on 2020-01-27, 15:24 authored by Rafael Isidoro da Silva, Evelin Campos Verdolin Brandão, Júlio César Moreira de Brito, Kátia Cecília de Souza Figueiredo

The knowledge about permeate flux decline regarded to apitoxin can be a useful tool to allow industrial fractionation of the mixture. Hermia’s models were used to predict the fouling mechanisms during cross-flow ultrafiltration of bee venom in 10 kDa regenerated cellulose membrane. Three different apitoxin concentrations (0.2 to 1 g/L) were tested at 1 bar and 0.08 m/s. Fouling mechanisms varied as a function of feed content. Membrane cleaning with sodium dodecyl sulphate was effective. Phospholipase A2 rejection coefficients were a function of membrane fouling, varying from 35 to 93%.

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