biostudies-literatureXue Xthe natural science foundation of Gansu province of Chinathe scientific research foundation for advanced talents of Shanghai Publishing and Printing College, Chinae0302487https://www.ebi.ac.uk/biostudies/studies/S-EPMC11075902biostudies-literatureUnknown19(5)This study describes the operation of two independent parallel laboratory-scale biotrickling filters (BTFs) to degrade different types of binary volatile organic compound (VOC) mixtures. Comparison experiments were conducted to evaluate the effects of two typical VOCs, i.e., ethyl acetate (a hydrophilic VOC) and n-hexane (a hydrophobic VOC) on the removal performance of toluene (a moderately hydrophobic VOC) in BTFs ''A" and ''B", respectively. Experiments were carried out by stabilizing the toluene concentration at 1.64 g m-3 and varying the concentrations of gas-phase ethyl acetate (0.85-2.8 g m-3) and n-hexane (0.85-2.8 g m-3) at an empty bed residence time (EBRT) of 30 s. In the presence of ethyl acetate (850 ± 55 mg m-3), toluene exhibited the highest removal efficiency (95.4 ± 2.2%) PloS oneBiofiltration of toluene in the presence of ethyl acetate or n-hexane: Performance and microbial community.PMC110759022024RCKY2722JR5RE1041Wang HZhai JNan XXue XfalseBiofiltration of toluene in the presence of ethyl acetate or n-hexane: Performance and microbial community.This study describes the operation of two independent parallel laboratory-scale biotrickling filters (BTFs) to degrade different types of binary volatile organic compound (VOC) mixtures. Comparison experiments were conducted to evaluate the effects of two typical VOCs, i.e., ethyl acetate (a hydrophilic VOC) and n-hexane (a hydrophobic VOC) on the removal performance of toluene (a moderately hydrophobic VOC) in BTFs ''A" and ''B", respectively. Experiments were carried out by stabilizing the toluene concentration at 1.64 g m-3 and varying the concentrations of gas-phase ethyl acetate (0.85-2.8 g m-3) and n-hexane (0.85-2.8 g m-3) at an empty bed residence time (EBRT) of 30 s. In the presence of ethyl acetate (850 ± 55 mg m-3), toluene exhibited the highest removal efficiency (95.4 ± 2.2%) 2024-01-01T00:00:00Z20242026-06-03T05:08:36.427Z2026-04-24T03:14:50.427ZS-EPMC110759023871370110.1371/journal.pone.0302487