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Biocomplex textile as an alternative daily cover for the simultaneous mitigation of methane and malodorous compounds

Title
Biocomplex textile as an alternative daily cover for the simultaneous mitigation of methane and malodorous compounds
Authors
Choi, HyungjooRyu, Hee WookCho, Kyung-Suk
Ewha Authors
조경숙
SCOPUS Author ID
조경숙scopus
Issue Date
2018
Journal Title
WASTE MANAGEMENT
ISSN
0956-053XJCR Link
Citation
WASTE MANAGEMENT vol. 72, pp. 339 - 348
Keywords
MethaneMalodorous compoundsLandfillBiocomplex textileDaily cover
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Indexed
SCIE; SCOPUS WOS
Document Type
Article
Abstract
Space-saving biocomplex textiles, which can be used as covers or rolled up as needed, have been demonstrated as alternative daily covers for the simultaneous mitigation of greenhouse gases (GHGs) and odors in landfills. The biocomplex textiles were made by inserting inorganic biocarriers (perlite (P), tobermolite (T) and their mixture (P/T)) between nonwoven fabrics. Methane (CH4) and dimethyl sulfide (DMS) were used as model compounds for GHGs and odors, and a CH4 and DMS co-degrading microbial consortium was used as an inoculum source. CH4 and DMS could be biologically degraded by methanotrophs and sulfur-oxidizing bacteria in the biocomplex textiles. Both biocomplex textiles made with either P or T were able to maintain the removability for CH4 and DMS after storage for 70 days, although their removal efficiencies for CH4 and DMS were 70-71% and 62-65% of those before storage, respectively. CH4 and DMS were simultaneously removed in lab-scale landfill simulation reactors employed with the biocomplex textiles. After 17 days of starvation, only 2-3 days were needed to recover their removability. Among the 3 kinds of biocarriers evaluated, the biocomplex textile generated using the P/T showed the highest removability and was the most stable. The maximum elimination capacities of the biocomplex textile generated with the P/T were 11.5 g-CH4.m(-2)-fabric.d(-1) and 0.5 g-DMS.m(-2)-fabric.d(-1), respectively. These results suggest that the biocomplex textiles are promising alternative daily covers to mitigate the emission of greenhouse gas and odor in operational landfills. (C) 2017 Elsevier Ltd. All rights reserved.
DOI
10.1016/j.wasman.2017.11.017
Appears in Collections:
엘텍공과대학 > 환경공학전공 > Journal papers
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