Institute for Water Quality, Resource and Waste Management, Vienna University of Technology, Karlsplatz 13/226, 1040 Vienna, Austria.
Sci Total Environ. 2013 Sep 1;461-462:819-22. doi: 10.1016/j.scitotenv.2012.08.094. Epub 2012 Sep 25.
In order to fulfill the objectives of environmental protection, today's focus on quantitative recycling rates must be amended by a more qualitative approach. Because modern products represent a mix of numerous and sometimes hazardous substances, ways must be explored to remove detrimental substances during recycling and to establish "clean cycles". On the one hand, such a "clean cycle" strategy will result in better recycling qualities of secondary products and less dissipation of hazardous substances during further product use. On the other hand, the elimination of hazardous substances during recycling requires sinks for the disposal of the eliminated materials. These topics are presented in general as well as by case studies. In particular, the sink issue is addressed, differentiating between sinks and final sinks and discussing the challenge to supply appropriate final sinks for all materials that cannot be recycled.
为了实现环境保护目标，今天对定量回收利用率的关注必须通过更具定性的方法来修正。因为现代产品包含了许多有时是危险的物质，所以必须探索在回收过程中去除有害物质并建立“清洁循环”的方法。一方面，这种“清洁循环”策略将导致更好的二手产品回收质量，并且在进一步使用产品过程中有害物质的扩散也会减少。另一方面，在回收过程中消除有害物质需要为被清除物质提供处置的汇。这些主题以一般案例研究和具体案例研究的形式呈现。特别是，解决了汇的问题，区分了汇和最终汇，并讨论了为所有无法回收的材料提供合适的最终汇的挑战。
