iX Estudos e Projetos Ltda., 341 Joaquim Francisco Street, Varginha, Itajubá, MG, Brazil.
iX Estudos e Projetos Ltda., 341 Joaquim Francisco Street, Varginha, Itajubá, MG, Brazil; Federal University of Itajubá - UNIFEI, Itajubá, MG, Brazil.
Waste Manag. 2018 Apr;74:323-334. doi: 10.1016/j.wasman.2017.12.011. Epub 2017 Dec 16.
Due to the relatively low investment, operation costs, and technical requirements, landfills are still the most widespread alternative for final disposal of municipal solid waste (MSW). The biogas produced in the landfill, a renewable energy source, may be an important alternative for electric power generation. Brazil has a significant number of operating landfills, which receive the most part of the collected MSW. However, the country has only 17 landfill biogas power plants (LBPPs), resulting in about 122 MW of capacity. The United Kingdom, for instance, which is about 3 times smaller than Brazil in population, has 442 LBPPs (corresponding to 1051 MW of capacity). This fact highlights a considerable unexplored potential of landfill biogas in Brazil. It is also important to estimate this potential throughout the country to provide information for the government, researchers and companies in decision making, planning and formulation of public policies regarding this use of landfill biogas. Therefore, this study aims at estimating the spatially distributed potential of landfill biogas production that can be used for electric power generation in Brazil from 2015 to 2045, considering two scenarios: (i) operating sanitary landfills and (ii) hypothetical scenario of Territorial Arrangements (TA) comprising every Brazilian city, considering one landfill per TA. The total installed capacity estimated in 2018 for scenario 1 is about 523 MW and 87% of this number are related to LBPPs bigger than 1 MW. In this same year, the total installed capacity estimated for scenario 2 is 768 MW and 95% of this number are related to LBPPs bigger than 1 MW. These results emphasize that Brazil has a considerable unexplored potential of landfill biogas and the importance of municipal consortiums for MSW management.
由于投资、运营成本和技术要求相对较低，垃圾填埋场仍然是城市固体废物（MSW）最终处置的最广泛选择。垃圾填埋场产生的沼气是一种可再生能源，可能是发电的重要替代能源。巴西有大量运营中的垃圾填埋场，接收了大部分收集到的 MSW。然而，该国只有 17 座垃圾填埋沼气发电厂（LBPP），总容量约为 122MW。例如，英国的人口大约是巴西的三分之一，但它有 442 座 LBPP（对应 1051MW 的容量）。这一事实凸显了巴西垃圾填埋沼气的巨大潜力尚未得到充分开发。估计全国范围内的这一潜力也很重要，以便为政府、研究人员和公司提供有关利用垃圾填埋沼气的决策、规划和制定公共政策的信息。因此，本研究旨在估计巴西从 2015 年到 2045 年期间，从垃圾填埋场生产沼气用于发电的空间分布潜力，考虑两种情景：（i）运营中的卫生垃圾填埋场和（ii）假设的领土安排（TA）情景，其中每个巴西城市都考虑一个垃圾填埋场。情景 1 中 2018 年估计的总装机容量约为 523MW，其中 87%与大于 1MW 的 LBPP 有关。同年，情景 2 估计的总装机容量为 768MW，其中 95%与大于 1MW 的 LBPP 有关。这些结果强调了巴西有相当大的尚未开发的垃圾填埋沼气潜力，以及城市联合体管理 MSW 的重要性。
