Pilot-Scale and Full-Scale Evaluation of the Chlorine-Ammonia Process for Bromate Control During Ozonation
作者： Eric C. Wert , Jeffrey J. Neemann , David Johnson , David Rexing , Ronald Zegers
DOI: 10.1080/01919510701552883
关键词: Chemistry 、 Chlorine 、 Chloramine 、 Pilot scale 、 Bromate 、 Pulp and paper industry 、 Environmental chemistry 、 Ammonia 、 Ozone 、 Scientific method 、 Full scale
摘要: An innovative approach to minimize bromate formation using sequential chlorine and ammonia (Cl2-NH3 process) was developed at pilot scale validated in a full-scale drinking water facility. Pilot-scale results showed the Cl2-NH3 process minimized by 65–95% compared 40–70% only. A 90-day evaluation confirmed could prevent concentrations from exceeding 10 μg/L. Full-scale implementation of allowed an increase ozone exposure level 3.0 mg-min/L 8.6 15.1°C. The increased is important as utilities strive meet more stringent regulations such Cryptosporidium inactivation.
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