Print Email Facebook Twitter How Subsurface Water Technologies (SWT) can Provide Robust, Effective, and Cost-Efficient Solutions for Freshwater Management in Coastal Zones Title How Subsurface Water Technologies (SWT) can Provide Robust, Effective, and Cost-Efficient Solutions for Freshwater Management in Coastal Zones Author Zuurbier, K.G. Raat, K.J. Paalman, M. Oosterhof, A.T. Stuyfzand, P.J. Faculty Civil Engineering and Geosciences Department Geoscience & Engineering Date 2016-04-01 Abstract Freshwater resources in coastal zones are limited while demands are high, resulting in problems like seasonal water shortage, overexploitation of freshwater aquifers, and seawater intrusion. Three subsurface water technologies (SWT) that can provide robust, effective, and cost-efficient solutions to manage freshwater resources in the subsurface are evaluated using groundwater modelling and validation at field-scale: (1) ASR-coastal to store freshwater surpluses in confined brackish-saline aquifers for recovery in times of demand, (2) the Freshkeeper to counteract salinization of well fields by interception and desalination of upconing brackish groundwater, and (3) the Freshmaker to combine ASR and Freshkeeper to enlarge the volume of natural freshwater lenses for later abstraction. The evaluation indicates that SWT can be used in various hydrogeological settings for various hydrogeological problems like seawater intrusion, upconing, and bubble drift during ASR and have significant economic benefits. Although only sporadically applied to date, we foresee that SWT will stimulate (cost-)efficient and sustainable exploitation of various freshwater sources (like groundwater, rainwater, treated waste water, surface water) in coastal zones. Prolonged SWT testing in the current pilots, replication of SWT in other areas worldwide, and the development of technical and non-technical support tools are required to facilitate potential end-users in investment decision making and SWT implementation. Subject aquifer storage and recoverycoastal aquifersfreshwatersalinizationseasonal water shortagesubsurface water technologies To reference this document use: http://resolver.tudelft.nl/uuid:eed1d408-6eb8-48a5-8c4b-df530cc85a05 Publisher Springer ISSN 0920-4741 Source https://doi.org/10.1007/s11269-016-1294-x Source Water Resources Management, 2016 Part of collection Institutional Repository Document type journal article Rights (c) 2016 The Author(s)This article is published with open access at Springerlink.com Files PDF Zuurbier_2016.pdf 870.52 KB Close viewer /islandora/object/uuid:eed1d408-6eb8-48a5-8c4b-df530cc85a05/datastream/OBJ/view