Premium
Combination of non‐thermal plasma and biotrickling filter for chlorobenzene removal
Author(s) -
Jiang Liying,
Li Hui,
Chen Jianmeng,
Zhang Di,
Cao Shuling,
Ye Jiexu
Publication year - 2016
Publication title -
journal of chemical technology and biotechnology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.64
H-Index - 117
eISSN - 1097-4660
pISSN - 0268-2575
DOI - 10.1002/jctb.4984
Subject(s) - chlorobenzene , clogging , bioreactor , pulp and paper industry , chemistry , nonthermal plasma , biomass (ecology) , mineralization (soil science) , environmental chemistry , residence time (fluid dynamics) , degradation (telecommunications) , filter (signal processing) , environmental science , plasma , organic chemistry , catalysis , ecology , computer science , telecommunications , physics , geotechnical engineering , archaeology , quantum mechanics , biology , nitrogen , engineering , history , computer vision
Abstract BACKGROUND Non‐thermal plasma ( NTP ) combined with a biotrickling filter ( BTF ) system is an alternative process to remove volatile organic compounds ( VOCs ). The removal performance of this system and the factors that influence it, namely, initial concentration, specific input energy, empty‐bed residence time, and inlet loading rate, were studied. RESULTS The coupled system exhibited better removal of chlorobenzene compared with the single‐ BTF system. Analysis of CO 2 production revealed that the coupled system affords higher production of CO 2 and greater mineralization of chlorobenzene. A decrease in biomass accumulation and pressure drop in the coupled system greater than that in the single‐ BTF reactor were observed. These results indicate that NTP pretreatment may be an efficient strategy for reducing bioreactor clogging without damaging the BTF performance. Analysis of the alpha diversity and microbial communities of the two BTFs by high‐throughput sequencing revealed that the biological diversity and biomass content of the single‐ BTF system were higher than those of the coupled system. CONCLUSION Since the combined NTP–BTF system is highly efficient, it may be a promising system for VOCs degradation. © 2016 Society of Chemical Industry