Performance evaluation of an on-site biocomplex textile as an alternative daily cover in a sanitary landfill, South Korea
- 주제(키워드) Biocomplex textile , alternative daily cover , landfills , odors , methane , bacterial community dynamics
- 주제(기타) Engineering, Environmental; Environmental Sciences
- 설명문(일반) [Yun, Jeonghee; Jung, Hyekyeng; Choi, Hyungjoo; Cho, Kyung-Suk] Ewha Womans Univ, Dept Environm Sci & Engn, 52 Ewhayeodae Gil, Seoul 03760, South Korea; [Oh, Kyung-Cheol; Jeon, Jun-Min] Green Environm Complex Ctr, Sunchon, South Korea; [Ryu, Hee Wook] Soongsil Univ, Dept Chem Engn, Seoul, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 SAGE PUBLICATIONS LTD
- 발행년도 2018
- URI http://www.dcollection.net/handler/ewha/000000155663
- 본문언어 영어
- Published As http://dx.doi.org/10.1177/0734242X18806996
초록/요약
The performance of a biocomplex textile prototype was evaluated as an alternative daily cover at an operational landfill site to mitigate odors and methane. The biocomplex textile prototype consisted of two layers of nonwoven fabric and biocarrier immobilized microorganisms and showed excellent removal of odors and methane compared to landfill cover soil. The complex odor intensity (odor dilution ratio (ODR)) on the surface of landfill cover soil was 1,000-10,000 ODR (average of 4,204 ODR), whereas it was 5-250 ODR (average of 55 ODR) on the surface of biocomplex textile. Hydrogen sulfide, which contributes a significant odor intensity, had an average concentration on the biocomplex textile of 8.64 parts-per-billion (ppb), compared to 1733.21 ppb on the landfill cover soil. The biocomplex textile also showed effective methane removal with methane concentrations of 0-1.2% (average of 0.3%) on the biocomplex textile compared to 0-20% (average of 5.3%) on the landfill cover soil. Bacterial community diversity in the biocomplex textile increased with time until an operating period of 66 days, after which diversity indices were maintained at a constant level. The dominant species were the methanotrophs Methylocaldum and Methylobacter, and the non-methanotrophs Acinetobacter, Serpens, Ohtaekwangia, and Actinophytocola. These results demonstrate that on-site biocomplex textile is a suitable alternative daily cover to mitigate odors and methane in landfills.
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