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KMID : 1156220170430060525
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Journal of Environmental Health Sciences
2017 Volume.43 No. 6 p.525 ~ p.531
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A Characteristic of Nitrogen and Phosphorus Removal in Anoxic/Oxic Basins combined with Iron Electrolysis
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Kim Young-Gyu
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Abstract
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Objectives: The purpose of this experiment is to better understand the nitrogen and phosphorus removal ratio according to operating conditions in an iron electrolysis system consisting of an anoxic basin, aerobic basin, and iron precipitation apparatus.
Methods: Iron electrolysis consists of an iron precipitation reactor composed of iron plates in oxic and anoxic basins. We studied the interrelation coefficient between T-N and T-P removal rates and F/M ratio, and the C/N ratio and BOD removal rate.
Results: The F/M ratio and the T-N and T-P removal rate per unit area have interrelation coefficients of 0.362 and 0.603, respectively. The removal rate per MLVSS and the T-N and T-P removal rate per unit area have respective interrelation coefficients of 0.49 and 0.59.
Conclusions: The removal rate of T-N and T-P increased with the increasing F/M ratio in the influent, and they also linearly increased in proportion to the C/N ratio of influent and BOD removal rate of the reactor.
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KEYWORD
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phosphorus, Nitrogen, iron electrolysis, F/M ratio, iron, C/N ratio
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