Arbon M, Ireland M
Melbourne Water Corporation, Locked Bag 4280, East Richmond, Victoria 3121, Australia.
Water Sci Technol. 2003;47(7-8):57-63.
Melbourne Water has adopted a challenging target of recycling 20 per cent of treated effluent from Melbourne's two major sewerage treatment plants by 2010. This target was adopted in response to key drivers for water recycling in the Melbourne region such as: strong support for conserving water resources and protecting marine environments; acknowledgment of recycled water as a valuable resource; greater emphasis on environmental issues and sustainable management principles; and opportunities to increase demand for recycled water through effective planning mechanisms. Issues that must be effectively addressed to meet the target include: managing public perceptions of recycled water; health and environmental concerns; lack of consensus among government agencies; high up-front costs of infrastructure; and prices of other sources of water supply not currently true costed. Melbourne Water has identified the following factors as critical in determining the success of recycling strategy: ability to demonstrate that water recycling will be important in terms of long term water cycle management; effective stakeholder consultation; gaining government support; establishing long-term, guaranteed markets for recycled water; implementing well planned, large scale recycling schemes; ability to provide a product that meets customer needs; regulatory approval; and implementation of a system that is economically viable. Water recycling initiatives are being investigated on household, local and regional levels. Over 10 proposals that will contribute to the 20 per cent recycled water target from the regional treatment plants are under various stages of development. Melbourne Water's commitment to recycling within a total water cycle management context is a vital component of this major new initiative for Melbourne and is crucial for a sustainable future.
墨尔本水务局制定了一个具有挑战性的目标,即到2010年将墨尔本两大污水处理厂处理后的污水回收利用20%。制定这一目标是为了应对墨尔本地区水资源回收利用的关键驱动因素,比如:对保护水资源和海洋环境的大力支持;认可再生水是一种宝贵资源;更加重视环境问题和可持续管理原则;以及通过有效的规划机制增加对再生水需求的机会。为实现该目标必须有效解决的问题包括:管理公众对再生水的认知;健康和环境方面的担忧;政府机构之间缺乏共识;基础设施前期成本高昂;以及目前其他供水水源的价格未反映真实成本。墨尔本水务局确定了以下因素对回收利用战略的成功至关重要:能够证明水资源回收利用在长期水循环管理方面的重要性;与利益相关者进行有效协商;获得政府支持;为再生水建立长期、有保障的市场;实施精心规划的大规模回收利用计划;能够提供满足客户需求的产品;获得监管批准;以及实施一个经济上可行的系统。正在家庭、地方和区域层面研究水资源回收利用举措。超过10项有助于实现区域处理厂20%再生水目标的提案正处于不同的发展阶段。墨尔本水务局在整体水循环管理背景下对回收利用的承诺是墨尔本这一重大新举措的重要组成部分,对可持续未来至关重要。