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KMID : 1024520080170040405
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Journal of the Environmental Sciences
2008 Volume.17 No. 4 p.405 ~ p.412
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Improvement of Operating Efficiency on Advanced Wastewater Plant Using Statistical Approach
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Moon Kyung-Sook
Min Kyung-Sub
Kim Seung-Min
Lee Chan-Hyung
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Abstract
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Statistical analysis technique was applied to operating parameters and removal efficiency data sets obtained from advanced wastewater treatment plant during 1 year. Through factor analysis three factors derived varimax rotation were selected each plant. Three components explained 96%, 87% of the total variance of the process, respectively. The components on Plant were identified in the following order : 1) Shortening the SRT during high-flow period, 2) Keeping biomass high on winter 3) factor was related to DO. On DNR plant, we defined them as follows: factor 1, Prolonged the SRT during high-flow period; factor 2 was related to sludge return; factor 3, Influent BOD during low-DO period. This technique was believed to assist operators in identifying priorities to improve operation efficiency.
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KEYWORD
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Advanced wastewater treatment plant, Operating parameters, Statistical analysis, Factor analysis
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