English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Reclaimed water, a nontraditional water source, has become a desirable choice for meeting the increasing demand in areas with water shortages. However, the environmental and economic benefits of reclaimed water reuse systems (RWRSs) are unclear. Therefore, we conducted this study to assess the environmental performance of RWRSs based on emergy analysis. Notably, the emergy index system was improved by incorporating the environmental impacts of air emissions. The results show that the improved emergy indicator system was more rigorous than the traditional emergy index system. The environmental loading ratio and the emergy sustainability index of the studied system based on an improved emergy index system was 0.202 and 30.01, respectively. The environmental economic value was 3.52 × 1020 sej/y. The results show that the RWRS has good sustainability, and high environmental and economic benefits. Compared with two other RWRSs (Scenario A in Zhengzhou City and Scenario B in Chongqing City) and one seawater desalination system (Scenario C in Qingdao City), it is found that RWRSs are preferred as a way to obtain water resources over seawater desalination under the same water quality conditions. It is also important to select an appropriate treatment process according to the raw water quality and reclaimed water use in the practical application.

An Improved Emergy Analysis of the Environmental and Economic Benefits of Reclaimed Water Reuse System