title: Removal of methyl acrylate by ceramic-packed biotrickling filter and their response to bacterial community.
abstract: Methyl acrylate is a widely used raw chemical materials and it is toxic in humans. In order to treat the methyl acrylate waste gas, a 3-layer BTF packed with ceramic particles and immobilized with activated sludge was set up. The BTF exhibited excellent removal efficiency that no methyl acrylate could be detected when EBRT was larger than 266s and inlet concentration was lower than 0.19g/m(3). The 1st layer performed the best at fixed inlet concentration of 0.42g/m(3). PCR combined with DGGE was performed to detect the differences in different layers of the BTF. Phylum Proteobacteria (e.g. α-, β-, γ-, δ-) was predominantly represented in the bacterial community, followed by Actinobacteria and Firmicutes. Desulfovibrio gigas, Variovorax paradoxus, Dokdonella koreensis, Pseudoxanthomonas suwonensis, Azorhizobium caulinodans, Hyphomicrobium denitrificans, Hyphomicrobium sp. and Comamonas testosteroni formed the bacteria community to treat methyl acrylate waste gas in the BTF.
authors.affiliation: Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji 133002, China.
authors.forename: Hao
authors.initials: H
authors.lastname: Wu
authors.affiliation: Analytical and Testing Center, Yanbian University, Yanji 133002, China.
authors.forename: Zhenhao
authors.initials: Z
authors.lastname: Yin
authors.affiliation: Department of Environmental Science, Agricultural College, Yanbian University, Yanji 133002, China.
authors.forename: Yue
authors.initials: Y
authors.lastname: Quan
authors.affiliation: Analytical and Testing Center, Yanbian University, Yanji 133002, China.
authors.forename: Yingyu
authors.initials: Y
authors.lastname: Fang
authors.affiliation: Key Laboratory of Natural Resources of Changbai Mountain and Functional Molecules, Ministry of Education, Yanbian University, Yanji 133002, China. Electronic address: cryin@ybu.edu.cn.
authors.forename: Chengri
authors.initials: C
authors.lastname: Yin
mesh_terms: D000179:Acrylates / Q000032:analysis* / Q000737:chemistry; D001419:Bacteria / Q000145:classification / Q000235:genetics / Q000378:metabolism*; D018441:Biofilms; D002516:Ceramics; D004785:Environmental Pollutants / Q000032:analysis* / Q000737:chemistry; D005374:Filtration / Q000295:instrumentation / Q000379:methods; D006801:Humans; D012722:Sewage / Q000382:microbiology; D018505:Waste Management / Q000295:instrumentation / Q000379:methods*
chemical_list: D000179:Acrylates; D004785:Environmental Pollutants; D012722:Sewage; C035956:methyl acrylate
keywords: Bacterial community; Biotrickling filter; Methyl acrylate; PCR-DGGE