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DOI : ,    Vol.10, No.3, 25 ~ 36, 2002
Title
Diagnosis of design and modification in Flocculation process using Particle Counter in WTP
한무영Moo Young Han
Abstract
The goal of the flocculation process is to change the particle size distribution to best suit the subsequent processes. Although several methods exist to evaluate the flocculation process, no single universally accepted method has yet to be developed. The purpose of this paper is to present experiences whereby particle counting was used in the diagnosis and optimization of the flocculation process. The evaluation is based on particle dynamics, i.e., the change of the number of small and large particles. Some design deficiencies in the distribution channel and flocculation process have been identified from this method, and thus some operational parameters are suggested for optimum performance. The effects of changed design and equipment in flocculation process have been evaluated by comparing the particle counts at the existing design with particle counts after modification. Because the optimum condition may be site-specific, the method presented in this paper will be beneficial in the evaluation olf the flocculation process at other water treatment plants.
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