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首页> 外文期刊>Waste management & research >Closed-loop recyling of construction and demolition waste in Germany in view of stricter environmental threshold values
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Closed-loop recyling of construction and demolition waste in Germany in view of stricter environmental threshold values

机译：鉴于更严格的环境阈值，德国对建筑和拆除废物进行闭环回收

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摘要

Recycling of construction and demolition waste contributes decisively to the saving of natural mineral resources. In Germany, processed mineral construction and demolition waste from structural engineering is used nearly exclusively in civil engineering (earthwork and road construction sector) as open-loop recycling. Due to the planned stricter limit values for the protection of soil and water, however, this recycling path in civil engineering may no longer be applicable in the future. According to some new guidelines and standards adopted recently, recycled aggregates may also be used for concrete production in the structural engineering sector (closed-loop recycling). Wastes from the structural engineering sector can thus be kept in a closed cycle, and their disposal on a landfill can be avoided. The present report focuses on the determination of maximum waste volumes that may be handled by this new recycling option. Potential adverse effects on the saving of resources and climate protection have been analysed. For this purpose, materials flow analysis and ecobalancing methods have been used.
机译：建筑废料的回收利用对节约天然矿产资源具有决定性的作用。在德国，来自结构工程的经过处理的矿物建筑和拆除废物几乎全部用于土木工程（土方工程和道路建设部门）中，作为开环回收利用。但是，由于计划的用于保护土壤和水的更严格的极限值，土木工程中的这种回收途径将来可能不再适用。根据最近采用的一些新准则和标准，回收骨料也可用于结构工程领域的混凝土生产（闭环回收）。因此，可以将结构工程部门的废物保持封闭循环，并避免将其丢弃在垃圾填埋场。本报告的重点是确定这种新的回收方法可以处理的最大废物量。分析了对资源节约和气候保护的潜在不利影响。为此，已经使用了物料流分析和生态平衡方法。

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