Energy and biochar co-production from municipal green waste gasification: A model applied to a landfill in the north of Italy

Pedrazzi, Simone; Santunione, Giulia; Minarelli, Andrea; Allesina, Giulio

doi:10.1016/j.enconman.2019.03.049

Cited by 36 publications

(11 citation statements)

References 31 publications

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“…Commercial plants of pyrolysis and combustion for waste-toenergy are available at industrial scale (Foong et al 2020c;Pio et al 2020), while gasification plant is comparatively limited. Despite that these technologies are commercially available, the research work on optimization and exploration of its further potential is still undergoing vigorously (Ge et al 2020(Ge et al , 2021Gutiérrez et al 2020;Hameed et al 2021;Liew et al 2018b;Ma et al 2019;Pedrazzi et al 2019). Among these, gasification is getting increasing attention due to its capability in producing higher yield of cleaner gaseous fuel such as hydrogen and syngas than combustion and pyrolysis (Jiang et al 2019).…”

Section: Figmentioning

confidence: 99%

Gasification of refuse-derived fuel from municipal solid waste for energy production: a review

et al. 2021

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Dwindling fossil fuels and improper waste management are major challenges in the context of increasing population and industrialization, calling for new waste-to-energy sources. For instance, refuse-derived fuels can be produced from transformation of municipal solid waste, which is forecasted to reach 2.6 billion metric tonnes in 2030. Gasification is a thermalinduced chemical reaction that produces gaseous fuel such as hydrogen and syngas. Here, we review refuse-derived fuel gasification with focus on practices in various countries, recent progress in gasification, gasification modelling and economic analysis. We found that some countries that replace coal by refuse-derived fuel reduce CO 2 emission by 40%, and decrease the amount municipal solid waste being sent to landfill by more than 50%. The production cost of energy via refuse-derived fuel gasification is estimated at 0.05 USD/kWh. Co-gasification by using two feedstocks appears more beneficial over conventional gasification in terms of minimum tar formation and improved process efficiency.

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Section: Figmentioning

confidence: 99%

Gasification of refuse-derived fuel from municipal solid waste for energy production: a review

et al. 2021

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“…In MSW landfills, biodegradable contents are converted to methane through a series of phases involving a number of anaerobic microorganisms [15,16]. These biodegradation phases include the aerobic, acidogenic, methanogenic, oxidation, and natural decomposition phases [17,18].…”

Section: Introductionmentioning

confidence: 99%

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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“…Vast amounts of organic solid wastes, such as kitchen waste, pig manure, and green waste, are generated in China and continue to increase annually [1][2][3]. Utilization of these wastes in an environmentally friendly manner has received much attention [4][5][6]. Composting is an effective and acceptable biological process to convert organic solid wastes into fertilizer or soil conditioner for agricultural use, as composting improves soil fertility, reduces greenhouse gas emissions, and remediates soil heavy metal pollution [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Insight into the cadmium and zinc binding potential of humic acids derived from composts by EEM spectra combined with PARAFAC analysis

et al. 2020

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AbstractTo investigate the characteristics of humic acids (HAs) and the combined effects of HAs on heavy metals, three HAs derived from kitchen waste compost (KW), pig manure compost (PM), and green waste compost (GW) were exposed to Cd(II) and Zn(II). The elemental contents and functional groups of HAs were different due to different raw materials. Fulvic-, humic-like content C1, humic-like content C4, and two protein-like contents C2 and C3 were identified in three HAs by EEM-PARAFAC analysis. The effects of HAs on heavy metals were associated with the metal species and HA source. Our results reveal that titrating Cd(II) caused stronger fluorescence quenching compared to titrating Zn(II) for all HAs. C1 and C4 of KW-HAs and PM-HAs showed fluorescence quenching after Cd(II) was added, whereas negligible fluorescence quenching was found when Zn(II) was added. In addition, C1 and C4 in the GW-HAs did not show obvious fluorescence quenching regardless of whether Cd(II) or Zn(II) was added. C3 in all HAs caused significant fluorescence quenching, suggesting that C3 plays an important role affecting the mobility of heavy metals. Consequently, these results suggest that HAs from KW and PM have greater potential for Cd-contaminated soil remediation than those from GW.

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Energy and biochar co-production from municipal green waste gasification: A model applied to a landfill in the north of Italy

Cited by 36 publications

References 31 publications

Gasification of refuse-derived fuel from municipal solid waste for energy production: a review

Gasification of refuse-derived fuel from municipal solid waste for energy production: a review

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

Insight into the cadmium and zinc binding potential of humic acids derived from composts by EEM spectra combined with PARAFAC analysis

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