A pilot-scale evaluation of magnetic ion exchange treatment for removal of natural organic material and inorganic anions

Treavor Boyer, Philip C. Singer

Research output: Contribution to journalArticle

142 Citations (Scopus)

Abstract

The objective of this research was to evaluate a magnetic ion exchange process (MIEX) for the removal of natural organic material (NOM) and bromide on a continuous-flow pilot-scale basis under different operating conditions and raw water characteristics. The most important operating variable was the effective resin dose (ERD), which is the product of the steady-state resin concentration in the contactor and the regeneration ratio. The raw water employed in this study had a moderate concentration of ultraviolet (UV)-absorbing substances and dissolved organic carbon (DOC), and a low turbidity, alkalinity, and concentration of competing anionic species. Experiments were conducted using the ambient raw water and raw water spiked with bromide, chloride, and sulfate. Substantial removal of UV-absorbing substances and DOC was achieved at ERDs as low as 0.16 mL/L. Moderate bromide removal was achieved, depending on the ERD. Increasing the sulfate concentration resulted in decreased removal of UV-absorbing substances, DOC, and bromide. Consistent results were observed between the continuous-flow pilot plant tests and batch equilibrium studies.

Original languageEnglish (US)
Pages (from-to)2865-2876
Number of pages12
JournalWater Research
Volume40
Issue number15
DOIs
StatePublished - Aug 2006
Externally publishedYes

Fingerprint

bromide
anion
ion exchange
Ion exchange
Negative ions
Organic carbon
dissolved organic carbon
resin
Resins
Water
sulfate
Turbidity
Alkalinity
Pilot plants
alkalinity
turbidity
regeneration
chloride
raw water
evaluation

Keywords

  • Anion exchange
  • Bromide
  • Effective resin dose
  • Magnetic ion exchange
  • Natural organic material
  • Pilot plant
  • Sulfate

ASJC Scopus subject areas

  • Earth-Surface Processes

Cite this

A pilot-scale evaluation of magnetic ion exchange treatment for removal of natural organic material and inorganic anions. / Boyer, Treavor; Singer, Philip C.

In: Water Research, Vol. 40, No. 15, 08.2006, p. 2865-2876.

Research output: Contribution to journalArticle

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