Title

Determination of the total iodide content in desalinated seawater permeate

Authors

Authors

S. J. Duranceau

Comments

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Abbreviated Journal Title

Desalination

Keywords

Desalination; Synthetic membrane processes; Permeate iodide; concentration; Seawater; Catalytic reduction analysis; DISINFECTION BY-PRODUCTS; SPECIATION; WATERS; OXIDATION; Engineering, Chemical; Water Resources

Abstract

An investigation was conducted to determine the iodide content of permeate collected from several operating facilities reliant upon synthetic membrane processes for seawater desalination. A possible, yet unintentional impact for communities that employ synthetic membrane processes for seawater desalination is the introduction of permeate streams containing iodide into their water supply, that then may result in the formation of iodinated disinfection by-products. To evaluate this potential, the iodide content of desalinated seawater permeate streams were measured using an analytical procedure based on the catalytic reduction of ceric sulfate by arsenious acid in a sulfuric acid solution. It was determined that iodide concentrations in permeate samples collected from seawater desalination facilities were less than the catalytic reduction method detection limit of 4.0 mu g/L for membrane feed seawaters that ranged between 51.1 mu g/L and 35.8 mu g/L of total iodide. Results of this investigation indicated that synthetic membrane processes can remove greater than 89% of the total iodide from the feedwater of seawater based on an iodide detection limit of 4.0 mu g/L. (c) 2010 Elsevier B.V. All rights reserved.

Journal Title

Desalination

Volume

261

Issue/Number

3

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

251

Last Page

254

WOS Identifier

WOS:000282203200007

ISSN

0011-9164

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