A solid composite microbial inoculant for the simultaneous removal of volatile organic sulfide compounds: Preparation, characterization, and its bioaugmentation of a biotrickling filter

Dong Zhi Chen, Xiang Yu Zhao, Xiao Ping Miao, Jing Chen, Jie Xu Ye, Zhuo Wei Cheng, Shi Han Zhang, Jian Meng Chen

Research output: Contribution to journalArticle

Abstract

Volatile organic sulfide compounds (VOSCs) are usually resistant to biodegradation, thereby limiting the performance of traditional biotechnology dealing with waste gas containing such pollutants especially in mixture. In this study, a solid composite microbial inoculant (SCMI) was prepared to remove dimethyl sulfide (DMS) and propanethiol (PT). Given that the DMS degradation activity of Alcaligenes sp. SY1 is inducible and the PT-degradation activity of Pseudomonas putida S-1 is constitutive, different strategies are designed for cell cultivation to obtain high VOSC removal rates of SCMI. Compared with the microbial suspension, the prepared SCMI exhibited better storage stability at 4 and 25 °C. Inoculation of the SCMI in biotrickling filters (BTFs) could effectively shorten the start-up period and enhance the removal performance. Microbial analysis by Illumina MiSeq indicated that Alcaligenes sp. SY1 and P. putida S-1 might be dominant and persistent among the microbial communities of the BTF during the operation.

Original languageEnglish (US)
Pages (from-to)589-596
Number of pages8
JournalJournal of Hazardous Materials
Volume342
DOIs
StatePublished - Jan 1 2018
Externally publishedYes

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Keywords

  • Biotrickling filter
  • Dimethyl sulfide
  • Microbial analysis
  • Propanethiol
  • Solid composite microbial inoculant

ASJC Scopus subject areas

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution
  • Health, Toxicology and Mutagenesis

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