Pilot studies were conducted at Liu-Du water treatment located in Keelung, Taiwan. Raw water was first treated by conventional coagulation- sedimentation-filtration (CSF) processes, and then pumped into the pilot plants. For the pilot plants, both ozone/GAC and ozone/UF processes were operated simultaneously for NOM removal comparisons. Both systems were controlled at the same operating conditions with ozone dosing of 4.5, 6.0 and 9.0 mg/L. The results demonstrate that both ozone/UF and ozone/GAC processes can enhance NOM removal after the CSF process. More NOM was removed by the Ozone/GAC process because ozone broke the large molecules into smaller molecules, which increases the GAC adsorption potential. However, the ozone/UF process provides higher removal capacity in turbidity. In both processes, ozone dosing was not proportional to NOM removal of each process and 6.0 mg/L is found to be the optimal dosing. Owing to increasing adsorbability by ozonation, the ozone/GAC process is a very competitive process in NOM removal when associated with the CSF process.
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Research Article|
June 01 2001
Removal of natural organic matter (NOM) using ozonation and ultrafiltration Available to Purchase
T.-C. Chang;
T.-C. Chang
*Department of Civil Engineering, National Taipei University of Technology, 1, Sec. 3, Chung Hsiao E. Rd, Taipei, 106, Chinese Taiwan
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Y.-W. Pan;
Y.-W. Pan
*Department of Civil Engineering, National Taipei University of Technology, 1, Sec. 3, Chung Hsiao E. Rd, Taipei, 106, Chinese Taiwan
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S.-S. Chen;
S.-S. Chen
*Department of Civil Engineering, National Taipei University of Technology, 1, Sec. 3, Chung Hsiao E. Rd, Taipei, 106, Chinese Taiwan
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C.-K. Chen
C.-K. Chen
**Senior Engineer, Sustainable Environmental Engineering Consultants Co. Ltd., 8F-1, 376, Sec. 1, Tunhwa South Rd., Taipei, 106, Chinese Taiwan
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Water Supply (2001) 1 (5-6): 49–54.
Citation
T.-C. Chang, Y.-W. Pan, S.-S. Chen, C.-K. Chen; Removal of natural organic matter (NOM) using ozonation and ultrafiltration. Water Supply 1 June 2001; 1 (5-6): 49–54. doi: https://doi.org/10.2166/ws.2001.0099
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