Controlling Bromate Formation: During Ozonation With Chlorine and Ammonia

  title={Controlling Bromate Formation: During Ozonation With Chlorine and Ammonia},
  author={Jeff Neemann and Robert A. Hulsey and David J. Rexing and Eric C. Wert},
  journal={Journal ‐ American Water Works Association},
The Stage 1 Disinfectants/Disinfection Byproducts Rule (D/DBPR) includes a 10 μg/L limit for bromate. For many utilities that have included ozonation in their treatment processes, compliance with the bromate standard can pose a considerable challenge if raw water supplies contain bromide at concentrations approaching 100 μg/L or higher. This challenge is accentuated if the ozonation process is designed for or modified to provide inactivation of Cryptosporidium parvum. This article describes how… 
Evaluation of Emerging Bromate Control Strategies
Ozonation of waters containing moderate to high levels of bromide at ambient pH can form bromate at levels that may exceed the United States maximum contaminant level (MCL) of 10 µg/L. A proven
Potential side effects of using ammonia to inhibit bromate formation during the ozonation of drinking water
This note identifies potential side effects of using ammonia to inhibit bromate formation during the ozonation of drinking water, and makes preliminary predictions of their significance. Based on
Pilot-Scale and Full-Scale Evaluation of the Chlorine-Ammonia Process for Bromate Control During Ozonation
An innovative approach to minimize bromate formation using sequential chlorine and ammonia (Cl2-NH3 process) was developed at pilot scale and validated in a full-scale drinking water facility.
Effect of Ammonia and Chloramine Pretreatment during the Ozonation of a Colored Groundwater with Elevated Bromide
Ozone coupled with pre-chloramination was evaluated as an effective color removal and bromate control method for groundwater at Mesa Water's Well #8. A modified solution ozone test procedure was
Evaluating Magnetic Ion Exchange Resin (MIEX)® Pretreatment to Increase Ozone Disinfection and Reduce Bromate Formation
Magnetic ion exchange resin, known by its commercial name (MIEX®) provides one pretreatment alternative that could maximize ozonation disinfection while decreasing bromate formation in
Recent Research on Ozonation By-products in Water and Wastewater Treatment: Formation, Control, Mitigation, and Other Relevant Topics
  • K. Ikehata
  • Environmental Science
    Energy, Environment, and Sustainability
  • 2018
Ozone is a powerful oxidant and disinfectant widely used in water and wastewater treatment. Unlike chlorine, ozone does not produce chlorinated and brominated organic disinfection by-products, such
Review of literature to determine the uses for ozone in the treatment of water and wastewater
In most water treatment plants ozone is used for multiple applications. Ozone is now used as a disinfectant, an oxidant of organic and inorganic molecules, a coagulant aid, removing taste and odour,