Effect of backwash as a strategy for biofouling control in the submerged ceramic membrane bioreactor for high-density cultivations: Process optimization and fouling mechanism at pilot scale

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 338, P. 126428 - 126428

Published: Jan. 28, 2024

Submerged membrane bioreactors are effective tools for synergistic production of valuable compounds, cell retention in the bioreactor, and separation products from reaction solution. However, fouling is a problem that impairs efficiency processes involving submerged bioreactors. One mechanical methods efficient mitigation backwash. Therefore, this study investigated backwash as method mitigating biofouling ceramic specifically terms Saccharomyces cerevisiae suspension. To identify key factors affecting dynamic flux their interactions, Fractional Factorial Design (FFD) was employed based on operating variables (2 levels, 5 variables). The average model showed dependency flow rate backwash, time between cycles, duration, concentration, process (adjusted R2=0.99). Furthermore, effect recovery assessed comparison to without It found after application up 100% initial could be recovered. In contrast, only around 20% maintained optimized conditions were at 1500 mL min-1, cycles min, duration sec, concentration 20 grams dry weight per liter, 0.5 h. mechanism determined deposition yeast cells surface blocking pores inside by sorbitan monostearate reagent present

Language: Английский

Catalytic membrane with in situ formed gold nanoparticles via catechol redox chemistry for continuous flow catalysis

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 354, P. 129447 - 129447

Published: Aug. 31, 2024

Language: Английский