Fan Yupeng, Guo Erhui, Zhai Yuanzheng, Chang Andrew C, Qiao Qi, Kang Peng
Water Environ Res. 2018 Jan 1;90(1):13-20. doi: 10.2175/106143017X14902968254548. Epub 2017 May 1.
To illustrate the benefits of water reuse project, the process-based life cycle analysis (LCA) could be combined with input-output LCA to evaluate the water reuse project. Energy is the only evaluation parameter used in this study. Life cycle assessment of all energy inputs (LCEA) is completed mainly by the life cycle inventory (LCI), taking into account the full life cycle including the construction, the operation, and the demolition phase of the project. Assessment of benefit from water reuse during the life cycle should focus on wastewater discharge reduction and water-saving benefits. The results of LCEA of Beijing water reuse project built in 2014 in a comprehensive way shows that the benefits obtained from the reclaimed water reuse far exceed the life cycle energy consumption. In this paper, the authors apply the LCEA model to estimate the benefits of reclaimed water reuse projects quantitatively.
为说明中水回用项目的效益，可将基于过程的生命周期分析（LCA）与投入产出LCA相结合，对中水回用项目进行评估。本研究仅使用能源作为评估参数。所有能源投入的生命周期评估（LCEA）主要通过生命周期清单（LCI）完成，同时考虑项目从建设、运营到拆除阶段的整个生命周期。生命周期内中水回用效益评估应聚焦于减少废水排放和节水效益。对2014年建成的北京中水回用项目进行的综合LCEA结果表明，中水回用所获效益远远超过生命周期能耗。本文作者应用LCEA模型对中水回用项目的效益进行定量估算。
