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首页> 外文期刊>Journal of Infrastructure Systems >Life-Cycle Energy Use and Greenhouse Gas Emissions Inventory for Water Treatment Systems
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Life-Cycle Energy Use and Greenhouse Gas Emissions Inventory for Water Treatment Systems

机译：水处理系统的生命周期能源使用和温室气体排放清单

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摘要

Given the rising concerns over scarce energy resources and global climate change, life-cycle inventories focusing on energy use and greenhouse gas (GHG) emissions were developed for the City of Toronto municipal water treatment system (WTS). Three processes within the facility use phase of the life cycle were considered: Chemical production, transportation of materials, and water treatment plant operation. The impacts of chemical manufacturing were estimated using the economic input-output life-cycle assessment model, while the inventories for transportation and operational environmental effects were based on data from the GHGenius model and regionally averaged data. Operational burdens, 60% of which are attributed to on-site pumping, accounted for 94% of total energy use and 90% of GHG emissions. By contrast, transportation-related energy use and emissions were deemed insignificant. The normalized energy use of the studied WTS was found to be between 2.3 and 2.5 MJ/m~3 of water treated. Water conservation practices are recommended as abatement strategies for the energy use and GHG emissions associated with water treatment. The limitations and uncertainties introduced by selected model parameters and through combining various estimation methodologies are discussed, as is the model's relevance.
机译：鉴于对稀缺能源和全球气候变化的担忧日益增加，为多伦多市市政水处理系统（WTS）开发了以能源使用和温室气体（GHG）排放为重点的生命周期清单。在生命周期的设施使用阶段内考虑了三个过程：化学生产，材料运输和水处理厂运行。使用经济投入产出生命周期评估模型估算了化学制造的影响，而运输和运营环境影响的清单则基于GHGenius模型的数据和区域平均数据。运营负担（其中60％归因于现场泵送）占能源总使用量的94％和温室气体排放量的90％。相反，与运输有关的能源使用和排放被认为是微不足道的。研究的污水处理厂的标准能源使用量为2.3至2.5 MJ / m〜3处理水。建议将节水做法作为与水处理相关的能源使用和温室气体排放的减排策略。讨论了所选模型参数以及通过组合各种估算方法而引入的局限性和不确定性，以及模型的相关性。

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