Bimestre, Thiago Averaldo [UNESP]Júnior, José Antonio MantovaniBotura, César AugustoCanettieri, ElianaVieira [UNESP]Tuna, Celso Eduardo [UNESP]2020-12-122020-12-122020-09-01Bioresource Technology, v. 311.1873-29760960-8524http://hdl.handle.net/11449/200425A hydrodynamic cavitation reactor with a Venturi tube was modeled through a computational fluid dynamics approach in order to evaluate the influence of pressure ratio, diameter and length of the throat zone. A cavitation reactor equipped with a Venturi tube was built in accordance with the computational modeling results. Hydrodynamic cavitation assisted alkaline pretreatment was performed to evaluate the influence of NaOH concentration (1–5%), the weight to volume percentage of solid in liquid (1–5%) and the reaction time (20–60 min.) in the lignin removal. The response surface methodology was used to optimize pretreatment parameters for maximum lignin removal. The optimal condition was 4.90% of NaOH and a solid weight percentage in liquid of 2.03% in 58.33 min, resulting in a maximum removal of 56.01% of lignin. Hydrodynamic cavitation can be easy to employ, an efficient and promissory pretreatment tool.engAlkaline pretreatmentHydrodynamic cavitationResponse surface methodology (RSM)Sugarcane bagasseVenturi tubeArtigo10.1016/j.biortech.2020.1235402-s2.0-85084828723