期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 123, 期 -, 页码 98-104出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2013.02.044
关键词
Feasibility studies; Intensive technologies; Extensive technologies; Wastewater treatment; Greenhouse gas emissions; Externalities
资金
- Spanish government (NOVEDAR) [CSD2007-00055]
- European Commision [EPI WATER-265213, LIFE 10 ENV/ES 000520]
Economic feasibility assessments represent a key issue for selecting which wastewater treatment processes should be implemented. The few applications that exist focus on the positive economic value of externalities, overlooking the existence of negative externalities. However, wastewater treatment plants (WWTPs) consume a significant amount of energy, contributing to climate change. In this context, as a pioneering approach, greenhouse gas emissions (GHG) have been incorporated as a negative externality of wastewater treatment. Within this framework, this study aims to compare the economic feasibility of five technologies, both intensive and extensive, for small communities. The results show that both the investment and operation costs are higher for intensive than for extensive technologies. Moreover, significant differences in the value of negative externalities were observed. This study demonstrates that from an economic perspective, constructed wetland is the most suitable option for treating wastewater in small agglomerations. (C) 2013 Elsevier Ltd. All rights reserved.
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