干旱区生态环境知识资源中心(Arid): Reclaimed water and irrigation: a cost-benefit analysis for desalination of WWTPs effluents

Arid

DOI	10.5004/dwt.2019.24556
	Reclaimed water and irrigation: a cost-benefit analysis for desalination of WWTPs effluents
	Bellver-Domingo, A.1; Fuentes, R.2; Hernandez-Sancho, F.1
通讯作者	Bellver-Domingo, A.
来源期刊	DESALINATION AND WATER TREATMENT
ISSN	1944-3994
EISSN	1944-3986
出版年	2019
卷号	166 页码:193-201
英文摘要	The increase of salts both in soils and water for irrigation purposes is a growing problem for farmlands. Waster stress in arid and semi-arid regions encourages the use of non-conventional water sources, such as wastewater reuse. Current wastewater treatment plants (WWTPs) are unable to reduce salinity because they are designed to remove the organic fraction from the wastewater. Hence, effluent contains high amount of salts which adversely affect farmlands. This work addresses the desalination of the effluent from WWTPs with a dual purpose: irrigation and the leaching of salts in soils. The desalination of WWTPs effluent has an environmental impact (there will be environmental cost savings related to not spilling salts) and an economic impact (water will be available for irrigation of farmlands). This study assesses the feasibility of desalination in the effluent of a WWTP sample considering the internalization of environmental externalities. Using the shadow prices methodology, the environmental avoided cost of reducing the salinity of the effluent of WWTPs is quantified as 62(sic) per kg of salt which is reduced. The feasibility study of effluent desalination has been modelled for growing vegetables, taking into account the 272 hectares/year that can be irrigated with the available volume of desalinated effluents. This modelling confirms that the reduction in the effluent's salinity makes it possible to reduce the environmental impact in soils with salinity problems, and also, from an economic point of view, allows farmers to generate an income.
英文关键词	Salinity Distance function Water reuse Irrigation Water quality Cost-benefit analysis
类型	Article
语种	英语
国家	Spain
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000489318500020
WOS关键词	MUNICIPAL WASTE-WATER ; CO2 SHADOW PRICE ; UNDESIRABLE OUTPUTS ; TREATMENT PLANTS ; REUSE ; AGRICULTURE ; EFFICIENCY ; CHALLENGES ; VALUATION ; FEASIBILITY
WOS类目	Engineering, Chemical ; Water Resources
WOS研究方向	Engineering ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/215047
作者单位	1.Univ Valencia, Dept Appl Econ 2, Water Econ Grp, Avda Tarongers S-N, Valencia 46022, Spain; 2.Univ Alicante, Dept Appl Econ Anal, Fac Econ, POB 99, E-03080 Alicante, Spain
推荐引用方式 GB/T 7714	Bellver-Domingo, A.,Fuentes, R.,Hernandez-Sancho, F.. Reclaimed water and irrigation: a cost-benefit analysis for desalination of WWTPs effluents[J],2019,166:193-201.
APA	Bellver-Domingo, A.,Fuentes, R.,&Hernandez-Sancho, F..(2019).Reclaimed water and irrigation: a cost-benefit analysis for desalination of WWTPs effluents.DESALINATION AND WATER TREATMENT,166,193-201.
MLA	Bellver-Domingo, A.,et al."Reclaimed water and irrigation: a cost-benefit analysis for desalination of WWTPs effluents".DESALINATION AND WATER TREATMENT 166(2019):193-201.