{"title":"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","authors":"Tânia Galavote , Gisele de Lorena Diniz Chaves , Luciana Harue Yamane , Renato Ribeiro Siman","doi":"10.1016/j.esd.2024.101493","DOIUrl":null,"url":null,"abstract":"<div><p>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<sup>−1</sup>. 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.</p></div>","PeriodicalId":49209,"journal":{"name":"Energy for Sustainable Development","volume":"81 ","pages":"Article 101493"},"PeriodicalIF":4.4000,"publicationDate":"2024-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"The effects of municipal waste reduction and recycling policies on the economic feasibility of landfill gas generation\",\"authors\":\"Tânia Galavote , Gisele de Lorena Diniz Chaves , Luciana Harue Yamane , Renato Ribeiro Siman\",\"doi\":\"10.1016/j.esd.2024.101493\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>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<sup>−1</sup>. 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.</p></div>\",\"PeriodicalId\":49209,\"journal\":{\"name\":\"Energy for Sustainable Development\",\"volume\":\"81 \",\"pages\":\"Article 101493\"},\"PeriodicalIF\":4.4000,\"publicationDate\":\"2024-06-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Energy for Sustainable Development\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0973082624001194\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"ENERGY & FUELS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Energy for Sustainable Development","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0973082624001194","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"ENERGY & FUELS","Score":null,"Total":0}
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.
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.