The environmental sustainability evaluation of an urban tap water treatment plant based on emergy

文献类型： 外文期刊

第一作者： Qi, Yan

作者： Qi, Yan;Zhang, Xiaohong;Lv, Yanfeng;Lin, Lili;Xiao, Yinlong;Yu, Xiaoyu;Zhang, Yanzong;Yang, Xiangdong

作者机构：

关键词： Water supply system; Emergy analysis; Indicator; Emissions' impact; Sustainability

期刊名称：ECOLOGICAL INDICATORS （ 影响因子：4.958； 五年影响因子：5.846 ）

ISSN： 1470-160X

年卷期： 2018 年 94 卷

页码：

收录情况： SCI

摘要： The resources and environment issues, derived from tap water production, have been widely concerned with fast development of social economy. Based on the characteristics of water supply systems (especially its pollution emissions' impact), this work proposed a set of improved indicator system for evaluating their environmental sustainability. As a case study, a tap water treatment plant, located in Jiangsu Province, China, was investigated using the proposed indicator system. The study results show that (1) purchased nonrenewable input accounts for 50.24% of the total input; therein, thermal power contributes the largest; (2) the unit emergy value of tap water reaches 9.03E11sej/m(3) based on the baseline 12.0E24 Sej/a; (3) the M-n removal needs the largest cost in terms of emergy; (4) the pollution emissions' impact reduces its performances slightly; (5) based on the classic indicator values, it has better economic benefit, lower environmental loading, and higher sustainability level than the similar systems. After some issues' discussions, this work puts forward the related suggestions for further improving its comprehensive performance in the future.

分类号：

  • 相关文献
作者其他论文 更多>>

微信小程序