Implementing mechanical biological treatment in an emerging waste management system predominated by waste pickers: A Brazilian case study
Implementing mechanical biological treatment in an emerging waste management system predominated by waste pickers: A Brazilian case study
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DOI：
10.1016/j.resconrec.2020.105031
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发表时间：
2020-11-01
影响因子：
13.2
通讯作者：
Poganietz, Witold-Roger
中科院分区：
文献类型：
--
作者：
Fuss, Maryegli;Vergara-Araya, Monica;Poganietz, Witold-Roger
机械生物处理（MBT）可能是家庭固体废物管理发展的决定性改变者（例如，减少堆填区的废物）。然而，在一个新生的家庭废物管理（HSWM）系统，其特点是不同的利益集团，从国家政府，市政当局，废物采摘和住户作为废物的提供者，实施MBT可能会产生积极的，但也有不利的影响，特别是对废物采摘（WP）。正式的妇女工作方案设在城市，如贝洛奥里藏特（巴西），这是卫生和社会福利管理的一个组成部分。本研究建立战略作为一种形式的规范性方案，以协助决策过程中处理WP和实施MBT系统。本研究包括物质和能源流，生命周期的环境影响和社会指标，其特征是活跃的WP和能力建设的数量。结果表明，当地社会的综合承诺可以减少70%的垃圾填埋和四分之一的全球变暖排放。对温室气体排放的强调，如贝洛奥里藏特对长期态度的承诺，带来了对发展HSWM的广泛承诺，因为基于重点战略的运作系统将因此反映出对气候的积极行动。根据能力建设，垃圾捡拾工可以填补MBT工厂的预计空缺，并提高其有效寿命。MBT有很大的增长空间。因此，这种增长只有在对MBT系统的适应性有新的想法的情况下才会发生，这些新想法的重点是充分确保当地生计的公平条件和具有系统影响的目标。
Mechanical Biological Treatment (MBT) could be a decisive game-changer for the development of household solid waste management (e.g., reduce waste in landfills). However, in a nascent household waste management (HSWM) system, which is characterized by divergent interest groups ranging from the national government, municipalities, waste pickers and householders as providers of waste, implementing MBTs could create positive but also adverse impacts, in particular on waste pickers (WPs). Formal WPs are in cities, like Belo Horizonte (Brazil), a constituent part of the HSWM. This study builds strategies as a form of normative scenarios to assist decision-making processes to deal with WPs and implement MBTs systems. The present study includes material and energy flows, life cycle environmental impacts and social indicators characterized by the number of active WPs and capacity building. The results show that an integrated commitment of the local society can reduce landfilling by 70% and global warming emissions to a quarter. An emphasis on greenhouse gas emissions, like Belo Horizonte's promise for long-term attitude, brings a broad commitment to developing HSWM since a functioning system based on focused strategies will consequently reflect a positive action on climate. Waste pickers can fulfill the estimated vacancies at MBT plants and promote their active life or not according to the capacity building. MBT has substantial room to grow. Therefore, this growth will only happen with new thoughts on the adaptability of MBT systems focused on sufficiency to secure fair conditions for local livelihoods and targets with systemic implications.