Implementation of waste-to-energy options in landfill-dominated countries: Economic evaluation and GHG impact

Aracil, Cristina; Haro, Pedro; Fuentes-Cano, Diego; Gómez–Barea, Alberto

doi:10.1016/j.wasman.2018.03.039

Cited by 56 publications

(26 citation statements)

References 27 publications

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“…Despite this fact, a comparable net cost is observed between incineration and gasification. Some studies (Aracil et al, 2018;Jadhao et al, 2017;Rezaei et al, 2017;Rizwan et al, 2018;Yassin et al, 2009) report that gasification plants are less costly than Fig. 9.…”

Section: Discussionmentioning

confidence: 99%

“…An interesting fact is that gasification coupled with combined cycle gas turbine (CCGT) or internal combustion engine (IGC) performs costeffective even though they seem to increase the complexity of plant configuration. The potential benefits of gasification are also linked to its flexibility of scale, which can be built economically at smallto-medium scales (Aracil et al, 2018;Yassin et al, 2009). Finally, regarding the LCA methodology, an attributional approach with system expansion is applied in this study.…”

Section: Tablementioning

confidence: 99%

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Comparison of waste-to-energy technologies of gasification and incineration using life cycle assessment: Case studies in Finland, France and China

Dong

Tang

Nzihou

et al. 2018

Journal of Cleaner Production

141

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Waste-to-Energy (WtE) has gradually constituted one of the most important options to achieve energy recovery from municipal solid waste (MSW). However, the environmental sustainability of a specific WtE system varies with used technologies and geographic differences. As a result, three representative WtE systems are compared using life cycle assessment (LCA): a gasification-based WtE plant in Finland, mechanical-grate incineration in France, and circulating fluidized bed incineration in China. Results show that the overall environmental performance of the gasification system is better than incineration. The use of gasification technology, attributed to an intermediate syngas purification step, can provide benefits of both reducing the stack emissions and increasing the energy efficiency. Regional waste management, especially related to MSW caloric value and emission regulation, are determining factors for a preferable performance of the incineration in France over that in China. Sensitivity and uncertainty analyses further address key variations such as choice of MSW composition, basis of displaced electricity, energy recovery mode, and application of "best-available technology" dedicated to incineration. It is found that the most sensitive parameters influencing the LCA results are: electricity recovery, CO 2 emission, and NO x emission. In the future, use of the source-separated high caloric waste combined with a more stringent emission standard can efficiently improve MSW incineration in China. Bottom ash recycling for metals and materials is highly applicable regarding incineration in France. This presented study can overall contribute to the development of specific WtE technology and local waste management plan for decision-makers.

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Section: Discussionmentioning

confidence: 99%

Section: Tablementioning

confidence: 99%

Comparison of waste-to-energy technologies of gasification and incineration using life cycle assessment: Case studies in Finland, France and China

Dong

Tang

Nzihou

et al. 2018

Journal of Cleaner Production

141

View full text Add to dashboard Cite

show abstract

“…In a previous work, the authors presented the most common technologies that were economically and GHG emission-assessed. Moving grate and fluidized bed reactors for the production of the syngas and steam Rankine cycle (SRC), organic Rankine cycle (ORC) and internal combustion engine (ICE) for the production of electricity are all examples of processes that could be used [17]. Fluidized bed gasification (FBG) technologies require a homogeneous fuel, so that the MSW refuse has to be pretreated and converted into refuse-derived fuel (RDF).…”

Section: The Role Of Msw Refuse In Bioenergymentioning

confidence: 99%

The Role of Advanced Waste-to-Energy Technologies in Landfill Mining

Aracil¹,

Haro²,

Gómez–Barea³

2017

WIT Transactions on Ecology and the Environment

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Recently, the European Parliament has decided to include a specific reference to "Enhanced Landfill Mining" (ELFM) in the Landfill Directive proposing a regulatory framework for ELFM so as to permit the retrieval of secondary raw materials that are present in existing landfill sites. Recent studies are supporting ELFM since they consider that landfill mining would be economically feasible only if combined with energy recovery (i.e., waste-to-energy, WtE) and if a wide range of materials are recovered (i.e., waste-to-materials, WtM). In this study, a combined material (landfill mining) and energy (advanced WtE) recovery is proposed where the excavated waste (MSW refuse) can be directly recycled or pretreated and used in the production of refuse-derived fuel (RDF) for an advanced (gasification-based) WtE plant producing power and heat. Both material and energy recovery are challenging in the circular economy since contributes to a loop-closing objective in human activities. An exhaustive assessment of each particular landfill site must be carried out in order to determine the profitability of the ELFM.

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“…The sanitary landfill method is a relatively common means of handling MSW due to its convenient implementation [4]. However, MSW produces greenhouse gases such as CH 4 and CO 2 in long-term landfills, and the leachate produced also contains a large amount of chemical oxygen demand (COD) and toxic heavy metal components that contaminate soil and groundwater [5][6][7][8]. The landfill approach also occupies land area and requires a long time for disposal.…”

Section: Introductionmentioning

confidence: 99%

Review of harmless treatment of municipal solid waste incineration fly ash

Zhang

Fang

et al. 2020

Waste Dispos. Sustain. Energy

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Incineration is widely adopted in municipal solid waste management, which produces large amounts of municipal solid waste incineration (MSWI) fly ash. The harmless treatment of MSWI fly ash requires the appropriate disposal of heavy metals and dioxins that are enriched in fly ash. This review summarizes recently developed harmless disposal methods for MSWI fly ash including solidification/stabilization, thermal treatment, and separation/extraction. In addition, we discuss heavy metal and dioxin fixation, and the removal capacity of fly ash via solidification/stabilization (including cement solidification, chemical stabilization, hydrothermal processes, and mechano-chemical methods), thermal treatment (including sintering, fuel-burning, or electric melting/vitrification), and separation/extraction (including water-washing, chemical reagent leaching, biological leaching, electrodialysis separation, chemical reagent extraction, and nanomaterials extraction). The advantages and disadvantages of different harmless treatment methods are compared and future research prospects and suggestions are summarized. This review provides general guidelines for the harmless treatment of MSWI fly ash in the future.

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Implementation of waste-to-energy options in landfill-dominated countries: Economic evaluation and GHG impact

Cited by 56 publications

References 27 publications

Comparison of waste-to-energy technologies of gasification and incineration using life cycle assessment: Case studies in Finland, France and China

Comparison of waste-to-energy technologies of gasification and incineration using life cycle assessment: Case studies in Finland, France and China

The Role of Advanced Waste-to-Energy Technologies in Landfill Mining

Review of harmless treatment of municipal solid waste incineration fly ash

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