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Material Flow Analysis (MFA) and waste characterizations for formal and informal performance indicators in Tandil, Argentina: Decision-making implications.
Journal of Environmental Management ( IF 8.0 ) Pub Date : 2020-03-31 , DOI: 10.1016/j.jenvman.2020.110453
Luciano Villalba 1
Affiliation  

In cities, the achievement of waste-related legal requirements and the main drivers of Integrated Sustainable Waste Management (ISWM) need adequate indicators and adaptable-to-case tools and strategies. In this work, we combine Material Flow Analysis (MFA) and waste characterizations to develop a mass balance table to design, calculate and analyse indicators related to the formal and informal waste sub-circuits of Tandil, a medium-sized city of the Buenos Aires province (Argentina). Results show that global recovery is very low (2.3% ± 0.16) and mainly driven by the Informal Recovery Sector (IRS). Also, the IRS strategy is more effective, recovering 40% ± 8.0 of its targeted materials from non-household sources. Regarding each material recovery performance, results show significant differences. For paper and board, recovery exceeds 20%. For HDPE, Tetra brik and Ferrous Metals are lower than 1%. In the case of PET and Glass, 9.6 and 9.0% of what is generated in households is recovered, respectively. However, the global recovery rate of each material is different: 2.9% ± 0.4 for PET and 5.5% ± 1.4 for Glass. Our research show that strategies in place are insufficient regarding legislation in force. Even a hypothetically 100% effectiveness in them will account only for 20.9% ± 2.1 of global recovery. Addressing organic waste, therefore, is imperative. Considering the current province law provision of final disposal diversion, accounting for the work of the IRS is key because they recover more waste than the official strategy. Regarding open dumps eradication, we estimate that up to 17% of generated waste is incorrectly final disposed through private skips illegally dumped. A tracking system for skips could avoid this situation.

中文翻译:

阿根廷坦迪尔的正式和非正式绩效指标的物料流分析(MFA)和废物特征:对决策的影响。

在城市中,实现与废物相关的法律要求以及“可持续综合废物管理”(ISWM)的主要驱动力需要适当的指标以及针对具体情况的工具和策略。在这项工作中,我们结合了物料流分析(MFA)和废物特征来开发质量平衡表,以设计,计算和分析与布宜诺斯艾利斯中型城市坦迪尔的正式和非正式废物子回路有关的指标省(阿根廷)。结果表明,全球复苏非常低(2.3%±0.16),主要是由非正式复苏部门(IRS)推动的。此外,IRS策略更有效,可以从非家庭资源中回收其目标材料的40%±8.0。关于每种材料的回收性能,结果显示出显着差异。对于纸和纸板,回收率超过20%。对于HDPE,Tetra brik和黑色金属含量低于1%。就PET和玻璃而言,分别回收了家庭产生的9.6%和9.0%。但是,每种材料的总回收率是不同的:PET为2.9%±0.4,玻璃为5.5%±1.4。我们的研究表明,就现行立法而言,现行策略还不够。即使假设它们具有100%的有效性,也仅占全球恢复的20.9%±2.1。因此,解决有机废物势在必行。考虑到当前省法律关于最终处置转移的规定,对IRS的工作进行核算是关键,因为与官方策略相比,它们回收的废物更多。关于根除露天垃圾,我们估计多达17%的废物是通过非法倾倒的私人垃圾桶被错误地最终处置的。
更新日期:2020-03-31
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