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Environmental Engineering Research 2011;16(4): 237-242. DOI: https://doi.org/10.4491/eer.2011.16.4.237
Pilot Study Analysis of Three Different Processes in Drinking Water Treatment
Dae Ho Kim, and Byoung Ho Lee
Civil and Environmental Engineering, University of Ulsan
Corresponding Author: Byoung Ho Lee ,Tel: +82-10-5459-0500, Fax: +82-52-259-2629, Email: bhlee@ulsan.ac.kr
Received: October 24, 2010;  Accepted: December 2, 2011.
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ABSTRACT
In this study, three pilot-scale plants with the capacity 30 m3/day were designed and set up to treat reservoir water for the production of drinking water. Three treatment processes were compared in the pilot testing: process 1 (coagulation- flocculation- sedimentationsand filtration- ozone- BAC); process 2 (coagulation- flocculation- sedimentation- microfiltration-ozone- BAC); and process 3 (coagulation- flocculation- sedimentation- sand filtration- GAC). The quality of water has been evaluated on the basis of selected parameters such as turbidity, color, consumption of KMnO4, dissolved organic carbon (DOC), trihalomethane formation potential (THMFP), geosmin and 2-MIB. A detailed assessment of performance was carried out during a five months operation. Process 2 was found to have better removal efficiency of DOC, THMFP, geosmin and 2-MIB than process 1 and process 3 under identical conditions, although the removal rate of color was found to be the same in the three cases.
Keywords: Activated carbon | Drinking water | Microfiltration | Ozonation | Sand filtration
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