Direct potable reuse: a future imperative
Direct potable reuse: a future imperative
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DOI：
10.2166/wrd.2011.000
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发表时间：
2011-01-01
影响因子：
2.3
通讯作者：
Asano, Takashi
中科院分区：
文献类型：
--
作者：
Leverenz, Harold L.;Tchobanoglous, George;Asano, Takashi
由于人口增长、城市化和气候变化，公共供水变得越来越紧张，为大都市地区开发新供水的机会变得越来越困难，甚至不可能。因此，现有的水供应必须更进一步。实现这一目标的方法之一是增加水的再利用，特别是在补充城市供水方面。虽然水的再利用提供了许多机会，但它也涉及一些问题。城市地区非饮用水再利用的一个重要成本与为再生水提供单独的管道和储存系统的需要有关。在大多数情况下，双重分配系统的成本已经过高，因此，限制了水再利用计划的实施。分配问题的解决方案是在现有的供水系统中实现净化水的直接饮用再利用（DPR）。本文的目的是考虑（a）未来DPR将成为规范，以及（B）为实现这一点需要采取的步骤。在概述之后，对DPR的基本原理、DPR项目的一些例子、技术和实施问题以及未来的期望进行了研究。
As a result of population growth, urbanization, and climate change, public water supplies are becoming stressed, and the chances of tapping new water supplies for metropolitan areas are getting more difficult, if not impossible. As a consequence, existing water supplies must go further. One way to achieve this objective is by increased water reuse, particularly in supplementing municipal water supplies. Although water reuse offers many opportunities it also involves a number of problems. A significant cost for nonpotable water reuse in urban areas is associated with the need to provide separate piping and storage systems for reclaimed water. In most situations, the cost of a dual distribution system has been prohibitive and thus, has limited implementation for water reuse programs. The solution to the problem of distribution is to implement direct potable reuse (DPR) of purified water in the existing water distribution system. The purpose of this paper is to consider (a) a future in which DPR will be the norm and (b) the steps that will need to be taken to make this a reality. Following an overview, the rationale for DPR, some examples of DPR projects, technological and implementation issues, and future expectations are examined.