| DOI: | 10.1016/j.eiar.2020.106378
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| 论文题名: | Techno-economic and environmental assessment of wastewater management systems: Life cycle approach |
| 作者: | Abdallah M.; Shanableh A.; Elshazly D.; Feroz S.
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| 刊名: | Environmental Impact Assessment Review
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| ISSN: | 1959255
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| 出版年: | 2020
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| 卷: | 82 | | 语种: | 英语
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| 英文关键词: | Conventional sewer system
; Eco-efficiency assessment
; Financial feasibility
; Life-cycle analysis
; Septic tank system
; Small-bore sewer system
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| Scopus关键词: | Costs
; Developing countries
; Efficiency
; Effluent treatment
; Effluents
; Environmental management
; Global warming
; Sanitation
; Septic tanks
; Sewage
; Sewers
; Eco-efficiency assessments
; Financial feasibility
; Life cycle analysis
; Sewer system
; Small-bore sewers
; Life cycle
; design method
; economic analysis
; environmental assessment
; environmental economics
; feasibility study
; life cycle analysis
; pollution control
; sewer network
; technological change
; wastewater treatment
; United Arab Emirates
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| 英文摘要: | The septic-tank and tanker (STT) system is a traditional wastewater management practice commonly used in many developing countries. The system is based on septic tanks that are pumped out by sewage tankers on a regular basis. Although the STT system is gradually being replaced by conventional gravity sewers (CGS), the high capital cost of this shift remains a major obstacle. This research aims to investigate the economic feasibility and environmental footprint of an alternative wastewater management system compared to existing sanitation systems. The study examines the small-bore sewers (SBS) system which utilizes the existing septic tanks to separate solids from gravity-conveyed effluent. A comparative assessment of the three systems (STT, CGS, and SBS) along with their treatment facilities was conducted on a residential area in the United Arab Emirates. Local design criteria of the SBS system were proposed based on current CGS guidelines and international SBS standards. A cost-integrated life cycle assessment (LCA) was carried out in order to evaluate the environmental and economic aspects of the three management strategies. The total present value of the SBS strategy was found to be significantly higher than those of STT and CGS, respectively. Moreover, a 67% smaller treatment plant was sufficient to serve the SBS effluent. The LCA results revealed that the CGS strategy imparted the highest damage to the environment in all impact categories considered including global warming potential, whereas, the STT system produced a higher impact than SBS in six out of the eleven tested impact categories. Overall, while the STT strategy was the least financially feasible, the CGS had the largest environmental footprint. The eco-efficiency assessment revealed that the SBS strategy was the most favored among the examined strategies. © 2020 Elsevier Inc. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/158287
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| Appears in Collections: | 气候变化与战略
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作者单位: | University of Sharjah, University City, Sharjah, 27272, United Arab Emirates
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| Recommended Citation: | |
Abdallah M.,Shanableh A.,Elshazly D.,et al. Techno-economic and environmental assessment of wastewater management systems: Life cycle approach[J]. Environmental Impact Assessment Review,2020-01-01,82
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