Effect of static magnetic field on trichloroethylene removal in a biotrickling filter. (September 2017)

• Record Type: Journal Article
• Authors: Quan, Yue; Wu, Hao; Yin, Zhenhao; Fang, Yingyu; Yin, Chengri
• Is Part Of: Bioresource technology. Volume 239(2017)
• Page Start: 7
• Page End: 16
• Publication Date: 2017-09
• Subjects: Magnetic field -- Biotrickling filter -- Trichloroethylene -- Bacterial 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.2017.04.121
• Languages: English
• ISSNs: 0960-8524

Abstract

Highlights: The MF-BTF was first applied in the treatment of waste gas. Higher ECs and REs were achieved in the MF-BTF under the low MF intensity. The static magnetic field improved the performance of the BTF. The relative abundance of predominant genus Acinetobacter was higher in MF-BTF. Abstract: A laboratory-scale biotrickling filter combined with a magnetic field (MF-BTF) and a single BTF (S-BTF) were set up to treat trichloroethylene (TCE) gas. The influences of phenol alone and NaAc-phenol as co-substrates and different MF intensities were investigated. At low MF intensity, MF-BTF displayed better performance with 0.20 g/L of phenol, 53.6–337.1 mg/m 3 of TCE, and empty bed residence times of 202.5 s. The performances followed the order MF-BTF (60.0 mT) > MF-BTF (30.0 mT) > S-BTF (0 mT) > MF-BTF (130.0 mT), and the removal efficiencies (REs) and maximum elimination capacities (ECs) corresponded to: 92.2%–45.5%, 2656.8 mg/m 3 h; 89.8%–37.2%, 2169.1 mg/m 3 h; 89.8%–29.8%, 1967.7 mg/m 3 h; 76.0%–20.8%, 1697.1 mg/m 3 h, respectively. High-throughput sequencing indicated that the bacterial diversity was lower, whereas the relative abundances of Acinetobacter, Chryseobacterium, and Acidovorax were higher in MF-BTF. Results confirmed that a proper MF could improve TCE removal performance in BTF.