都市廢污水再利用標的選擇之研究

近年來，許多國家將廢污水做為一種供水來源，以取代其他水資源的需求。而在都市地區更因其廢污水具有水量固定的特性，因此許多國家的都市地區，將其廢污水回收再利用作為都市用水的水源之一。本研究藉由文獻回顧，將都市廢污水再利用之標的分為七大項目，「農業用水」、「工業用水」、「環保用水」、「都市用水」、「補助地下水」、「生活用水」及「注入水庫」。透過層級分析法設計專家問卷，並將專家問卷結果進行分析。分析結果以「工業用水」、「農業用水」及「環保用水」為前三項最佳用水標的。

關鍵字

都市廢污水；再利用；回收；層級分析法

並列摘要

In recent years, many countries have used wastewater as an alternative source of water supply in order to substitute water from other sources. Moreover, due to the property that the amount of the wastewater of the urban areas is relatively fixed, reclaimed wastewater bas been utilized as one of the major water sources of many countries. The purpose of this research is then to investigate the principles with regard to how to reuse the wastewater in urban areas and furthermore, to determine appropriate reuse targets. Candidate wastewater reuse targets in this study includes ”agriculture irrigation”, ”industrial use”, ”environmental use”, ”urban use”, ”groundwater recharge”, ”life-use water”, and ”infusion reservoir”. Through applications of the Analytic Hierarchy Processes, industrial use, agriculture irrigation, and environmental use are identified as the most appropriate water reuse targets. The research results of this study can be used as useful information for further studies in the field of systems analysis of wastewater reuse.