Simultaneous mitigation of methane and odors in a biowindow using a pipe network
- 주제(키워드) Bacterial community , Biowindow , Landfill , Methane , Mitigation , Odor
- 등재 SCIE, SCOPUS
- 발행기관 Elsevier Ltd
- 발행년도 2019
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000162289
- 본문언어 영어
- Published As http://dx.doi.org/10.1016/j.wasman.2019.09.004
- PubMed https://pubmed.ncbi.nlm.nih.gov/31520912
초록/요약
In this study, a biowindow with a piped gas collection network is proposed as an area-efficient landfill gas treatment system. A 9-m2 biowindow was constructed for treating landfill gas collected from an area of 450 m2 in a sanitary landfill, and its performance was evaluated for 224 days. The methane removal efficiency was 59–100% at 146.3–675.1 g-CH4 m−2 d−1. Odorous compounds were also removed by the biowindow, with a complex odor intensity removal rate of 93–100%. In particular, the removal efficiency for hydrogen sulfide and methanethiol, major contributors to the complex odor intensity, was 97% and 91%, respectively. Metagenomic analysis showed that the dominant bacterial genera shifted from Acinetobacter and Pseudomonas to Methylobacter and Methylocaldum due to the high concentration of methane. A high bacterial diversity was maintained, which may have contributed to the robust performance of the biowindow against environmental fluctuations. At 1/50th of the size of conventional biocovers, the proposed biowindow can greatly reduce the required installation area and represents a competitive method for the simultaneous treatment of methane and odor in landfills. © 2019
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