Current updates on waste to energy (WtE) technologies: a review

Beyene, Hayelom Dargo; Werkneh, Adhena Ayaliew; Ambaye, Tekilt Gebregergs

doi:10.1016/j.ref.2017.11.001

Cited by 233 publications

(82 citation statements)

References 74 publications

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“…Urban waste is made up of an assortment of materials, not all of which are reusable, but most are [35,42,40,61,138,193]. Due to the very large, and rising, quantities in which urban waste is generated all over the world [42,47,96,101,136,164] and the fact that over half of it is biodegradable [2,149,150,163,191], it is considered as a large reservoir of renewable energy [29,32,38,51,95]. Indeed as is true for other non-conventional energy sources, the energy that can be, theoretically, derived from MSW is enormous [71,102,120,203,194].…”

Section: Msw As An Energy Sourcementioning

confidence: 99%

“…Even though MSW is generated wherever human beings dwell, its quantity and complexity are much higher in urban and suburban situations compared to rural ones [22,26,29,98]. With very rapidly increasing rate of urbanization all over the world and the rapidly growing globalization-fuelled consumerism, urban solid waste generation in developing economies like India and China is rising steeply [51,59,124,163].…”

Section: Introductionmentioning

confidence: 99%

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The myth and the reality of energy recovery from municipal solid waste

Abbasi

2018

Energ Sustain Soc

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Background: Any manner of development can be sustainable only if the waste generated by it is not allowed to accumulate but is fully reused/recycled/recovered. Among the strategies to attain this goal have been the attempts to recover energy from municipal solid waste (MSW). About 60% of MSW is carbonaceous, consisting of materials which can either be biodegraded into fuels like methane or incinerated, thereby generating utilizable energy. MSW also contains several components-like metallic scrap and glass pieces-which can be reused or recycled, thereby achieving energy conservation. Given these attributes, MSW appears to be a potential source of energy and resources. Indeed, this belief that MSW is usable if only we try sincerely enough to do so prompts most of us to keep generating much more MSW than is warranted. But how realizable really is the energy potential of MSW? What perils loom into view when we actually set out to utilize MSW as an energy source? The present study addresses these crucially important questions. Methods: The work is based on a critical content analysis of the prior art. Results: The generation of MSW has consistently outpaced the world's efforts to dispose of it cleanly, and the energy (and material) recovery from MSW is easier said than done. In most instances, what is technically feasible is economically unfeasible. And what is economically feasible-such as setting the waste on fire as is often done in developing countries-is exceedingly harmful to the environment and the human health. Measures such as sanitary landfilling and incineration create as many new problems as the old ones they solve. Moreover, despite the use of these less-than-adequate technologies, a major portion of MSW generated in the world lies untreated. Conclusions: As the MSW output is expected to double by 2025, this situation is only set to become worse. Rising tides of E-waste would compound the problem even further. Hence, enormous stress should be put on the reduction of MSW generation by controlling wanton consumerism and wastage, rather than continuing with it in the false hope that technology will soon provide a magical solution and eliminate the problem.

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Section: Msw As An Energy Sourcementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The myth and the reality of energy recovery from municipal solid waste

Abbasi

2018

Energ Sustain Soc

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“…Among the mentioned specifications above, the main problem face by industries these days is to lower the water content of the solid fuel to enhance the heating value (LHV). As many studies reported [6,7,8,9] that organic waste for example, a large content of food waste, kitchen waste and leftovers from residences, restaurants, cafeterias, factory lunch-rooms, and markets have high moisture and high biodegradability.…”

Section: Introductionmentioning

confidence: 99%

A review of Drying Technologies for Refuse Derived Fuel (RDF) and Possible Implementation for Cement Industry

Zamrudy¹,

Santosa²,

Budiono³

et al. 2019

IJCTR

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Refused-Derived Fuel (RDF) in global energy demand plants has risen over the past decades as a sustainable secondary supply of energy resources. Food waste as a significant fraction of municipal solid waste (MSW) has a great potential for energy production especially in developing country such as Indonesia. To date, many industries focus on drying technologies development for utilization of food waste for energy conversion. Lowering moisture content of food waste is essential to improve RDF heating value (LHV) and further to avoid more steam generation in the combustor. Vaporization of the moisture in fuel consumes a portion of the available energy. The review highlights a number of drying technology application for RDF including direct and indirect steam drying. Furthermore, the review highlights the considerable opportunity for further development of dryer application for Indonesia"s cement industry.

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“…As conditions vary among countries, a dilemma usually occurs in the selection of disposal ways [10]. For example, the investment and operational costs of incineration and anaerobic digestion are generally higher than that of landfilling, but the latter contributes abundant landfill gases (LFGs) and leachate, which makes it difficult with respect to the reduction of GHGs and may even cause secondary environmental pollutions [11][12][13]. Therefore, it is essential to preferentially consider coordination among the economy, environment, and society when formulating an MSW disposal plan to increase its sustainability.…”

Section: Introductionmentioning

confidence: 99%

Sustainable Municipal Solid Waste Disposal in the Belt and Road Initiative: A Preliminary Proposal for Chengdu City

et al. 2018

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The Chinese green Belt and Road initiative is promoted. This study takes Chengdu as a key hub under the Belt and Road initiative. The municipal solid waste disposal is the point to control pollution and move toward sustainability. Hence, sustainable municipal solid waste disposal needs to be studied. The prior studies are absent in the planning scenarios analysis. This study proposes a case study to propose three planning scenarios for waste disposal to enhance its sustainability. Scenario 1 represents the current waste disposal mode in Chengdu; Scenario 2 considers all the wastes being incinerated; and Scenario 3 focuses on the incorporation of three disposal methods, i.e., anaerobic digestion, incineration, and landfilling. These three scenarios are assessed based on their greenhouse gas emissions, costs, and public acceptance, to determine the optimality for future managerial practice. Results indicated that Scenario 3 has the highest overall efficiency, yet is challenging in terms of economic feasibility. The limitations of the study are also discussed.

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Current updates on waste to energy (WtE) technologies: a review

Cited by 233 publications

References 74 publications

The myth and the reality of energy recovery from municipal solid waste

The myth and the reality of energy recovery from municipal solid waste

A review of Drying Technologies for Refuse Derived Fuel (RDF) and Possible Implementation for Cement Industry

Sustainable Municipal Solid Waste Disposal in the Belt and Road Initiative: A Preliminary Proposal for Chengdu City

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