MIT Libraries homeMIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Improving groundwater quality for irrigation using monovalent selective electrodialysis

Author(s)
Rehman, Danyal; Ahdab, Yvana D; Lienhard, John H
Thumbnail
DownloadIDAWC2019_Rehman.pdf (1.271Mb)
Open Access Policy

Open Access Policy

Creative Commons Attribution-Noncommercial-Share Alike

Metadata
Show full item record
Abstract
Monovalent selective electrodialysis (MSED) is a desalination technology that allows for the selective removal of monovalent ions that are detrimental to crops, while retaining divalent ions that are beneficial for crops. This paper proposes a semi-empirical MSED model that can be used to evaluate desalination system performance for different salinities of brackish source water. The MSED set-up is a discretized stack modelled as an electric circuit, consisting of ohmic resistances and membrane potentials for each ion species. The model is coupled and simultaneously validated with MSED experiments. These experiments determine applied current density and ion transport numbers, which serve as the primary inputs to the model. The model outputs are the concentration change of each ion species across the stack and the system energy consumption during steady operation. Ion concentration differences represent membrane selectivity towards monovalent/divalent ions (Na+/Ca2+ and Na+/Mg2+). Evaluation of MSED membrane performance in the brackish salinity range will help determine the conditions that optimize membrane selectivity and energy consumption, as well as the technology’s suitability for agricultural applications.
Date issued
2019-10
URI
https://hdl.handle.net/1721.1/124385
Department
Massachusetts Institute of Technology. Department of Mechanical Engineering
Journal
IDA World Congress on Desalination and Water Reuse
Publisher
International Desalination Association
Citation
D. Rehman et al. “Improving groundwater quality for irrigation using monovalent selective electrodialysis,” IDA World Congress on Desalination and Water Reuse, October 2019, Dubai, India, International Desalination Association, October 2019
Version: Author's final manuscript

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries homeMIT Libraries logo

Find us on

Twitter Facebook Instagram YouTube RSS

MIT Libraries navigation

SearchHours & locationsBorrow & requestResearch supportAbout us
PrivacyPermissionsAccessibility
MIT
Massachusetts Institute of Technology
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.