Eco-efficiency analysis of non-potable water systems in domestic buildings

Chor Man Lam, Ling Leng, Pi Cheng Chen, Po Heng Lee, Shu Chien Hsu

研究成果: Article同行評審

26 引文 斯高帕斯(Scopus)


Energy efficiency in water systems contributes significantly towards achieving sustainable water management. Decentralized anaerobic fluidized bed membrane bioreactor (AFMBR) systems with energy recovery have been proposed for greywater recycling in domestic buildings for non-potable uses, such as toilet flushing. This study developed an eco-efficiency analysis (EEA) framework with the integration of life-cycle assessment (LCA) and economic analysis for the evaluation of different water systems. Four water management scenarios including (1) freshwater flushing system, (2) seawater flushing system, (3) greywater flushing system adopting aerobic membrane bioreactor (MBR), and (4) greywater flushing system adopting AFMBR, were analyzed in a case study in Hong Kong. The EEA results reveal the AFMBR greywater reuse scenario to be the most eco-efficient option as the system is capable of energy recovery, recycling of water resource and reduction of sewage treatment loadings. This study has demonstrated that the EEA framework is an effective tool to guide water management towards sustainability and provides a basis for further research on the application of greywater recycling systems on a larger scale.

頁(從 - 到)293-307
期刊Applied Energy
出版狀態Published - 2017

All Science Journal Classification (ASJC) codes

  • 建築與營造
  • 一般能源
  • 機械工業
  • 管理、監督、政策法律


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