CSIRO Ecosystem Sciences, Brisbane Qld 4001, Australia.
Environ Sci Technol. 2011 Jun 15;45(12):5434-40. doi: 10.1021/es103939a. Epub 2011 May 17.
Greenhouse gas emissions are likely to rise faster than growth in population and more than double for water supply and wastewater services over the next 50 years in South East Queensland (SEQ), Australia. New sources of water supply such as rainwater tanks, recycled water, and desalination currently have greater energy intensity than traditional sources. In addition, direct greenhouse gas emissions from reservoirs and wastewater treatment and handling have potentially the same magnitude as emissions from the use of energy. Centralized and decentralized water supply and wastewater systems are considered for a scenario based upon a government water supply strategy for the next 50 years. Many sources of data have large uncertainties which are estimated following the IPCC Good Practice Guidelines. Important sources of emissions with large uncertainties such as rainwater tanks and direct emissions were identified for further research and potential mitigation of greenhouse gas emissions.
在未来 50 年，澳大利亚东南部昆士兰州（SEQ）的温室气体排放可能比人口增长更快，水供应和废水处理服务的排放量将增加一倍以上。目前，雨水收集池、再生水和海水淡化等新的供水源的能源密集度高于传统水源。此外，水库和废水处理及处理过程中的直接温室气体排放与能源使用产生的排放具有相同的潜在规模。根据政府未来 50 年的供水战略，考虑了集中式和分布式供水和废水处理系统。许多数据源的不确定性很大，按照气专委良好做法指导意见进行了估算。确定了雨水收集池和直接排放等不确定性较大的重要排放源，以便进一步开展研究和潜在的温室气体减排工作。
