Bromate Control by Dosing Hydrogen Peroxide and Ammonia during Ozonation of the Yellow River Water

Abstract

Ozonation of the downstream Yellow River water yields bromate with concentrations higher than China regulations. Bench tests demonstrated that dosing ammonia or hydrogen peroxide alone could not control the bromate concentration to below 10 μg/L. A pilot study showed that dosing hydrogen peroxide into the inherently ammonia-containing raw water at a dosage lower than 1.7 could effectively reduce the bromate concentration to below the detection limit when the ozone dosage was between 2 and 2.5 mg/L.

Keywords:

• Ammonia
• Bromate
• Drinking Water
• Hydrogen Peroxide
• Ozone
• Pilot Study

Additional information

Funding

The authors wish to acknowledge the financial support from the National Natural Science Foundation of China (Grant Nos. 51290284 and 51278269).