Arid
DOI10.3390/w9030177
Observations and Prediction of Recovered Quality of Desalinated Seawater in the Strategic ASR Project in Liwa, Abu Dhabi
Stuyfzand, Pieter J.1,2; Smidt, Ebel3,4; Zuurbier, Koen G.1; Hartog, Niels1,5; Dawoud, Mohamed A.6
通讯作者Stuyfzand, Pieter J.
来源期刊WATER
ISSN2073-4441
出版年2017
卷号9期号:3
英文摘要

To be able to overcome water shortages, Abu Dhabi Emirate started an Aquifer Storage and Recovery (ASR) project with desalinated seawater (DSW) as source water near Liwa. It is the largest DSW-ASR project in the world (stored volume similar to 10 Mm(3)/year), and should recover potable water for direct use. DSW is infiltrated into a desert dune sand aquifer using sand-covered gravel-bed recharge basins. In this study, we evaluate the hydrogeological and hydrogeochemical stratification of the (sub)oxic target aquifer, and water quality changes of DSW during trial infiltration runs. We predict water quality changes of DSW after 824 d of infiltration, during 90 d of intensive recovery (67% recovered) without storage (scenario A), as well as after 10 years of storage (scenario B, with significant bubble drift). Monitoring of preceding trials revealed a lack of redox reactions; little carbonate dissolution and Ca/Na exchange; much SiO2 dissolution; a strong mobilization of natural AsO43-, B, Ba, F, CrO42-, Mo, Sr and V from the (sub)oxic aquifer; and immobilization of PO4, Al, Cu, Fe and Ni from DSW. The Easy-Leacher model was applied in forward and reverse mode including lateral bubble drift, to predict water quality of the recovered water. We show that hydrogeochemical modeling of a complex ASR-system can be relatively easy and straightforward, if aquifer reactivity is low and redox reactions can be ignored. The pilot observations and modeling results demonstrate that in scenario A recovered water quality still complies with Abu Dhabi’s drinking water standards (even up to 85% recovery). For scenario B, however, the recovery efficiency declines to 60% after which various drinking water standards are exceeded, especially the one for chromium.


英文关键词Aquifer Storage and Recovery (ASR) hydrochemistry desalinated seawater chromate trace elements transport modeling break-through curve Abu Dhabi recovery efficiency
类型Article
语种英语
国家Netherlands ; U Arab Emirates
收录类别SCI-E
WOS记录号WOS:000398721300028
WOS关键词WATER-QUALITY ; AQUIFER ; TRANSPORT ; CHROMIUM ; RECHARGE ; STORAGE ; MODELS
WOS类目Water Resources
WOS研究方向Water Resources
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/202790
作者单位1.KWR Watercycle Res Inst, NL-3430 BB Nieuwegein, Netherlands;
2.Delft Univ Technol, Fac Civil Engn & Geosci, NL-2628 CN Delft, Netherlands;
3.Waterfocus, NL-3981 EB Bunnik, Netherlands;
4.SG Consultancy & Mediat Ltd, NL-5221 GB Engelen, Netherlands;
5.Univ Utrecht, Fac Geosci, NL-3508 TA Utrecht, Netherlands;
6.Environm Agcy Abu Dhabi, POB 45553,Al Mamoura Bldg A,Muroor Rd, Abu Dhabi, U Arab Emirates
推荐引用方式
GB/T 7714
Stuyfzand, Pieter J.,Smidt, Ebel,Zuurbier, Koen G.,et al. Observations and Prediction of Recovered Quality of Desalinated Seawater in the Strategic ASR Project in Liwa, Abu Dhabi[J],2017,9(3).
APA Stuyfzand, Pieter J.,Smidt, Ebel,Zuurbier, Koen G.,Hartog, Niels,&Dawoud, Mohamed A..(2017).Observations and Prediction of Recovered Quality of Desalinated Seawater in the Strategic ASR Project in Liwa, Abu Dhabi.WATER,9(3).
MLA Stuyfzand, Pieter J.,et al."Observations and Prediction of Recovered Quality of Desalinated Seawater in the Strategic ASR Project in Liwa, Abu Dhabi".WATER 9.3(2017).
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