Electrochemical process for the removal of bromide from California state project water

  • Kimbrough D
  • Suffet I
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Abstract

Although bromide is generally considered non-toxic at concentrations
found in most drinking water sources, it reacts with a variety of
commonly used disinfectants, most notably ozone and chlorine, to produce
by-products that are of serious public health concern. There are not
currently any demonstrated technologies that can remove bromide in a
cost effective fashion. This paper examines an electro-chemical process
on a pilot-scale to remove bromide from a widely used surface water
source, the California State Water Project (SWP). The process consists
of oxidizing bromide to bromine and volatilizing the bromine. SWP water
was passed through this unit under various conditions and the bromide
removal was measured as well as the formation potential for various
organic by products. This study shows up to 35% of the bromide was
removed and there were up to 60% less disinfection by-products
measured.

Author-supplied keywords

  • Bromide
  • DBPs
  • Electrolysis
  • Oxidation
  • THMs
  • TOC

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