HOUCong-yu,LIJia-bin,FUWan-yi,et al.A Combined Ozone/Ceramic Membrane and Activated Carbon Process for Rural Drinking Water Treatment: A Pilot Study[J].China Water & Wastewater,2022,38(8):38-45.
臭氧/陶瓷膜-活性炭组合工艺处理农村饮用水中试
- Title:
- A Combined Ozone/Ceramic Membrane and Activated Carbon Process for Rural Drinking Water Treatment: A Pilot Study
- Keywords:
- ozone; ceramic membrane; activated carbon; drinking water; emerging contaminants; membrane fouling
- 摘要:
- 采用一体化臭氧/陶瓷膜-活性炭组合工艺设备处理北江水源水，研究一体化设备对浊度、色度、CODMn、氨氮和亚硝酸盐氮等常规性指标及新兴污染物等非常规性指标的控制效果，以及臭氧对陶瓷膜污染的缓解效果。研究结果表明，臭氧/陶瓷膜-活性炭组合工艺能够直接处理水源水，在臭氧投加量为3 mg/L、PAC投加量为15 mg/L时，组合工艺对浊度、色度、CODMn和氨氮的去除率分别为99.8%、100%、72.9%和100%。组合工艺出水中未检测到大肠菌群，这表明组合工艺能够有效杀灭细菌。此外，臭氧/陶瓷膜-活性炭组合工艺对检测到的19种PPCPs的去除率约为82.2%，对检测到的5种EDCs的去除率约为92.8%。膜污染模型分析结果表明，滤饼层堵塞污染是原水进行陶瓷膜过滤时膜污染形成的主要形式。
- Abstract:
- A combined process of ozone/ceramic membrane and activated carbon was applied to treat the source water from Beijiang River. The control effect of the integrated equipment on turbidity, chroma, CODMn, ammonia nitrogen and nitrite nitrogen as well as non-conventional indicators such as emerging contaminants was investigated, and the mitigation effect of ozone on ceramic membrane fouling was explored. The combined process could be directly applied to treat the source water. When the dosage of ozone and PAC was 3 mg/L and 15 mg/L, respectively, the turbidity, chroma, CODMn and ammonia nitrogen removal efficiencies of the combined process were 99.8%, 100%, 72.9% and 100%, respectively. No coliform group was detected in the effluent from the combined process, indicating that the combined process could effectively kill the bacteria. In addition, 19 detected PPCPs and 5 detected EDCs removal efficiencies of the combined process were approximately 82.2% and 92.8%, respectively. The membrane fouling model showed that cake layer clogging was the main form of membrane fouling in ceramic membrane filtration of the source water.
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