Simultaneous mitigation of methane and odors in a biowindow using a pipe network
- Authors
- Jung, H.; Oh, K.-C.; Ryu, H.-W.; Jeon, J.-M.; Cho, K.-S.
- Issue Date
- Dec-2019
- Publisher
- Elsevier Ltd
- Keywords
- Bacterial community; Biowindow; Landfill; Methane; Mitigation; Odor
- Citation
- Waste Management, v.100, pp.45 - 56
- Journal Title
- Waste Management
- Volume
- 100
- Start Page
- 45
- End Page
- 56
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/35138
- DOI
- 10.1016/j.wasman.2019.09.004
- ISSN
- 0956-053X
- Abstract
- 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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