DONGYa-wen,LIYan-jun,SUNXiao-si,et al.Enhanced Removal of Emerging Contaminants in Drinking Water Using O3/CCM-BAC Process[J].China Water & Wastewater,2025,41(15):68-74.
Enhanced Removal of Emerging Contaminants in Drinking Water Using O3/CCM-BAC Process
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第15期
Page:
68-74
Column:
Date of publication:
2025-08-01
- Keywords:
- manganese-doped catalytic ceramic membrane; in-situ ozonation; biological activated carbon; drinking water treatment; emerging contaminants
- Abstract:
- To enhance the removal of emerging contaminants (ECs) in drinking water, the in-situ ozonation/manganese-doped catalytic ceramic membrane-biological activated carbon (O3/CCM-BAC) process was applied for a pilot-scale (96 m3/d) drinking water treatment. The removal performance and mechanism of ECs in this process were systematically analyzed. The results indicated that the concentrations of pharmaceuticals and personal care products (PPCPs) and endocrine-disrupting chemicals (EDCs) in the raw water reached to 313.27 ng/L and 25.12 ng/L, respectively, posing high ecological risks. However, the plant’s conventional O3-BAC process exhibited limited effectiveness in reducing these risks. In contrast, the O3/CCM-BAC process significantly improved the removal efficiencies of PPCPs and EDCs, achieving removal rates of 97.64% and 94.86%, respectively, thereby largely reducing the ecological risks associated with ECs. The enhanced removal of ECs by the O3/CCM-BAC process was primarily attributed to the efficient in-situ ozonation of organic matter catalyzed by the manganese-doped ceramic membrane; and compared to dissolved organic matter in raw water, the lower O/C ratios and more unsaturated molecular structures of ECs make them more susceptible to remove.
Last Update:
2025-08-01