城市垃圾减量和回收政策对垃圾填埋气发电经济可行性的影响

IF 4.4 2区 工程技术 Q2 ENERGY & FUELS Energy for Sustainable Development Pub Date : 2024-06-24 DOI:10.1016/j.esd.2024.101493
Tânia Galavote , Gisele de Lorena Diniz Chaves , Luciana Harue Yamane , Renato Ribeiro Siman
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引用次数: 0

摘要

用于能源生产的垃圾填埋气(LFG)项目具有多项优势。然而,为了避免这些项目无法实施,必须评估促进垃圾填埋场废物分流的公共政策的长期影响。因此,本研究的目的是评估公共政策的应用对垃圾填埋场发电潜力的影响,这些公共政策影响了城市固体废物(MSW)的回收利用、发电量的减少和不适当的处置减少,并评估其对经济可行性的影响。我们采用了一个系统动力学模型来估算甲烷产量,同时考虑到城市固体废物的数量和组成随时间的变化。结果表明,甲烷生产和发电潜力最大的方案是生物可降解废物分流较少的方案。此外,经济效益表明,除了碳信用额额外收入外,其他方案都不可行。不过,如果将能源销售率提高到 93.2 美元/兆瓦时-1 以上,所有方案都是可行的。另一种方案要求通过政府激励措施降低贴现率,使其低于 10%,投资成本低于原值的 77%。这些要素有助于长期规划,并为决策者提供了这些政策影响的未来愿景。
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The effects of municipal waste reduction and recycling policies on the economic feasibility of landfill gas generation

Landfill gas (LFG) projects for energy production have several advantages. However, to avoid the impossibility of these projects, it is crucial to assess the long-term effects of public policies that promote the diversion of waste disposed of in landfills. Therefore, the objective of the present work is to evaluate the effects of the application of public policies, which influence recycling, reduction of generation, and inadequate disposal reduction of municipal solid waste (MSW), in the potential of electricity generation in landfills, as well as to evaluate its effect on economic viability. A System Dynamics model was employed to estimate methane production while considering variations in the quantity and make-up of MSW over time. The results showed that the scenarios with the greatest potential for methane generation and electricity were those with less diversion of biodegradable waste. Furthermore, the economic performance demonstrated that none of the possibilities are viable except with carbon credits extra income. However, all scenarios could become viable by increasing the energy sale rate above 93.2 USD.MWh−1. Another option calls for lowering the discount rate through government incentives to a percentage below 10 % and an investment cost below 77 % of the original value. These elements aid in long-term planning and give decision-makers a future vision of the impact of these policies.

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来源期刊
Energy for Sustainable Development
Energy for Sustainable Development ENERGY & FUELS-ENERGY & FUELS
CiteScore
8.10
自引率
9.10%
发文量
187
审稿时长
6-12 weeks
期刊介绍: Published on behalf of the International Energy Initiative, Energy for Sustainable Development is the journal for decision makers, managers, consultants, policy makers, planners and researchers in both government and non-government organizations. It publishes original research and reviews about energy in developing countries, sustainable development, energy resources, technologies, policies and interactions.
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