Enhancement of TCE removal by a static magnetic field in a fungal biotrickling filter. (July 2018)

• Record Type: Journal Article
• Authors: Quan, Yue; Wu, Hao; Guo, Chunyu; Han, Yu; Yin, Chengri
• Is Part Of: Bioresource technology. Volume 259(2018)
• Page Start: 365
• Page End: 372
• Publication Date: 2018-07
• Subjects: BTF biotrickling filter -- MF magnetic field -- MFI magnetic field intensities -- TCE trichloroethylene -- EC elimination capacity -- RE removal efficiency -- ILR inlet loading rate -- Phase I Start-up -- Phase II MFI 0 mT -- Phase III MFI 20.0 mT -- Phase IV MFI 60.0 mT -- Phase V MFI 80.0 mT -- Phase VI Starvation -- Phase VII Recovery -- a approximately 370.0 mg/m3(a, b and c stand for 3 different TCE concentration ranges) -- b approximately 500–900 mg/m3 -- c approximately 1000 mg/m3; Magnetic field -- Biotrickling filter -- Trichloroethylene -- Fungal community -- High-throughput sequencing; Biomass -- Periodicals; Biomass energy -- Periodicals; Bioremediation -- Periodicals; Agricultural wastes -- Periodicals; Factory and trade waste -- Periodicals; Organic wastes -- Periodicals; Bioénergie -- Périodiques; Déchets agricoles -- Périodiques; Déchets industriels -- Périodiques; Déchets organiques -- Périodiques; Déchets (Combustible) -- Périodiques; 662.88
• DOI: 10.1016/j.biortech.2018.03.031
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: Magnetic field (MF) improved the performance of the fungal BTF. Different MF intensities significantly affected the fungal community. MF significantly improved the relative abundance of the phylum Ascomycota . As Ascomycota was highest in abundance, BTF at 20 mT achieved the best removal. Abstract: A fungal biotrickling filter (BTF) was employed to treat trichloroethylene (TCE) gas under different magnetic field intensities (MFIs). When the TCE inlet concentrations were approximately 370, 500–900, and 1000 mg/m 3, the removal performances followed the order: MFI 20.0 mT > MFI 60.0 mT > MFI 80.0 mT > MFI 0 mT. In particular, at a TCE inlet concentration of 1000 mg/m 3, MFI 20.0 mT was significantly better than MFI 0 mT performance. The corresponding removal efficiencies and maximum elimination capacities were 52.9%, 4854.1 mg/m 3 h and 39.4%, 3594.8 mg/m 3 h, respectively. BTF was shut down completely for 7 days and rapidly recovered in 6–10 days. High-throughput sequencing indicated that MF significantly affected the fungal community and significantly improved the relative abundance of the phylum Ascomycota, achieving the highest abundance of Ascomycota at MFI 20.0 . These results indicated that a lower MFI can efficiently improve TCE removal performance in a fungal BTF.