Enhancement of landfill gas production and waste stabilisation by using geotextile filter in a bioreactor landfill

Yaman, Cevat; Küçükağa, Yusuf; Pala, Burcu; Delice, Gülsah; Korkut, Nafiz Eyüp; Akyol, Abdurrahman; Kara, Serdar

doi:10.1504/ijgw.2019.096757

Cited by 3 publications

(3 citation statements)

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“…These bioreactor landfills also contained horizontally placed geotextile filters in their drainage layers as a biofilm medium for leachate treatment. The biomass-holding capacity of porous nonwoven geotextiles has been reported in the literature in detail [6,19,20]. In the current study, the diversity and composition of the bacterial and archaeal communities developed on geotextile filters placed in the drainage chamber of pilot-scale bioreactor landfills were examined after 540 days of anaerobic operation through the metagenomics approach.…”

Section: Introductionmentioning

confidence: 95%

“…Furthermore, 2 reactors (R-1 and R-2) contained solid waste and sewage sludge at a ratio of 1/20, respectively, while the other 2 reactors contained only solid waste. The effect of using geotextile layers on leachate quality in laboratory-scale and pilot-scale landfill bioreactors has been investigated in previous papers and is not included in this study [6,20].…”

Section: Bioreactor Setupmentioning

confidence: 99%

“…Similar to hydro, geothermal, wind, and solar energy sources, LFG or biogas is adopted as a renewable source of energy [5]. Many studies on anaerobic bioreactor landfills have shown that this technology provides highly efficient methanization from the laboratory scale to the field scale, providing waste stabilization faster than traditional landfills [6]. In the last decade, studies on the disposal of the organic fraction of urban solid wastes with bioreactor landfill technology have become a main focus of researchers.…”

Section: Introductionmentioning

confidence: 99%

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Community Structure of Bacteria and Archaea Associated with Geotextile Filters in Anaerobic Bioreactor Landfills

et al. 2021

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Landfills are an example of an environment that contains highly complex communities of microorganisms. To evaluate the microbial community structure, four stainless steel pilot-scale bioreactor landfills with single- and double-layered geotextile fabric were used. Two reactors (R-1 and R-2) contained municipal solid waste (MSW) and sewage sludge, while the other two reactors (R-3 and R-4) contained only MSW. A single layer of geotextile fabric (R2GT3 and R3GT3) was inserted in the drainage layers of the two reactors (R-2 and R-3), while a double layer of geotextile fabric (R4GT2 and R4GT1) was inserted in one of the reactors (R-4). Scanning electron microscopy demonstrated that biomass developed on the geotextile fabrics after 540 days of bioreactor operation. The metagenomics analyses of the geotextile samples by 16S rRNA gene sequencing indicated that the geotextile bacterial communities were dominated by the phyla Firmicutes, Bacteroidetes, and Thermotogeae, while Proteobacteria were detected as the rarest bacterial phylum in all the geotextile samples. Treponema, Caldicoprobacter, and Clostridium were the most dominant anaerobic and fermentative bacterial genera associated with the geotextile fabric in the bioreactors. Euryarchaeota was the predominant archaean phylum detected in all the geotextile samples. In the archaeal communities, Methanosarcina, and Vadin CA11 were identified as the predominant genera. The diversity of microorganisms in landfill bioreactors is addressed to reveal opportunities for landfill process modifications and associated operational optimization. Thus, this study provides insights into the population dynamics of microorganisms in geotextile fabrics used in bioreactor landfills.

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Section: Introductionmentioning

confidence: 95%

Section: Bioreactor Setupmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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