ESTIMATION OF CONSTRUCTION AND DEMOLITION WASTE GENERATION AND SITE OPTIMIZATION OF RECYCLING PLANTS:A CASE STUDY OF CHONGQING METROPOLIS, CHINA
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摘要: 建筑废弃物资源处理厂选址不当,造成建筑废弃物收运成本过高,是当前我国建筑废弃物资源化处置未广泛运用的主要原因之一。需要通过信息集成实现选址优化,降低建筑废弃物的收运成本。为此,提出了一套以运输成本为主要优化目标的多维度选址优化方案,以重庆主城为例,结合灰色理论与指数平滑法预测建筑废弃物年产量,提出了基于GIS的资源化处理厂的备选选址方法与优化模型,形成了建筑废弃物资源化处理厂的选址布局优化方案。Abstract: Construction and Demolition Waste (C&DW) recycling has not yet been a common practice in China. One of the key obstacles was the improper location of the recycling plants, which led to high cost of C&DW recycling. Therefore, it was of great significance to reduce the collection and transportation cost of bulk C&DW through information integration and accurate matching of supply and demand information. A multi criterial location optimization scheme was put forward, with transportation cost as the main objective. Taking Chongqing metropolis as a case study, the study was conducted on the basis of reasonable prediction, combining grey model with exponential smoothing method to estimate the annual output of C&DW. The optimization model of site selection of C&DW recycling plant based on GIS was proposed, and the optimization scheme of site selection C&DW recycling plant was formed.
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Key words:
- C&DW management /
- recycling plant /
- GIS /
- grey model /
- exponential smoothing method /
- locating optimizing
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