Removal of Adsorbable Organic Halides from Water Containing Bromide Ions by Conventional and Advanced Oxidation

摘要

The article focuses on an assessment of adsorbable organic halides degradation during the process of conventional ozonation and advanced oxidation as far as the water containing bromides is concerned. The amount of AOX in the water examined varied from 59 to 105g Cl-/L, and the bromides concentration exceeded 200g Br-/L. The effects obtained by O-3 and O-3/UV methods were compared with the results achieved for the water which underwent only UV irradiation. The analysis of presented research results shows that out of the examined oxidation methods, in water of pH 6.8-9.5 and temperature of approximately 287K, the highest degree of AOX decomposition, was achieved by UV irradiation of water, which was previously subjected to ozonation. However, when the ozone dose reached 0.3mg O-3/mgC in an alkaline environment, bromates were formed in amounts exceeding the maximum contaminant level in both processes.