Data analysis for the treatment of mineral construction and demolition waste in Austria.

The recycling of mineral construction and demolition waste in particular has great potential to save natural resources, energy and emissions. One focus of the present study was the analysis of the fate of mineral construction and demolition waste after its treatment. To this end, the Federal Environment Agency experts used two different methods: In the bottom-up approach, an analysis of reporting data for Austria as a whole was carried out on the basis of a detailed analysis of 20 plant operators and in the top-down approach. The results of the analyses show that in 2017, after extrapolation, between 4% and 11% of the masses were deposited after treatment, the majority of which was recycled. In addition, the reports via the Central Plant Register and the annual waste balance sheet were analyzed with regard to standardized evaluability and any potential for improvement was shown.矿物类建筑与拆除废弃物的回收利用，在节约自然资源、能源及削减污染物排放领域具备巨大潜力。本研究的核心重点之一，便是分析此类废弃物经处理后的最终去向。为此，联邦环境署（Federal Environment Agency）的专家采用了两种分析方法：其一为自下而上法（bottom-up approach），即基于对20家处理厂运营商的详细调研，对奥地利全境的上报数据开展整体分析；其二为自上而下法（top-down approach）。分析结果显示，经外推推算后，2017年有4%至11%的废弃物在完成处理后被填埋处置，其中绝大多数均得到了回收利用。此外，研究团队还针对通过中央处理厂登记系统（Central Plant Register）与年度废弃物平衡表提交的报告，就其标准化评估可行性展开了分析，并明确了其潜在优化空间。