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Updated: Feb 8, 2026

Ammonia Synthesis at Low Pressure
Published on: August 23, 2017
[Impact of Ammonia and H2O2 on Bromate and Disinfection By-products Control]
Yong-Jing Wang1,2, Xu Du1, Meng Jin1
1Department of Environmental Science and Engineering, School of Food and Chemical Engineering, Beijing Technology and Business University, Beijing 100048, China.
Abstract:
A pilot-scale study with conventional water treatment and ozone-biological activated carbon (O3-BAC) treatment was conducted to evaluate the impact of ammonia and hydrogen peroxide (H2O2) addition on the bromate and disinfection by-products formation potential (DBPFP) control, with bromide containing water as raw water. It was found that bromate concentration would exceed 10.00 μg·L-1 as ozone doses were higher than 1.0 mg·L-1 under different water qualities. Ammonia and H2O2could effectively control bromate formation and bromate concentration decreased as ammonia and H2O2 doses increased. Bromate concentration could be controlled below 10.00 μg·L-1 as ammonia dose was 0.10-0.30 mg·L-1 or the m(H2O2)/m(O3) was 0.2-1.0. However, as ammonia-H2O2 was combined for the same purpose, bromate increased firstly and then decreased. Ammonia addition would not significantly affect the THMFP control but H2O2 application would depress the efficiency of THMFP removal.
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