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KMID : 1171820050200020012
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Journal of Environmental and Sanitary Engineering
2005 Volume.20 No. 2 p.12 ~ p.20
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The Study on Nitrogen and Phosphorus Removal Using Photosynthetic Bacteria in SBR Process
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Kim Young-Ho
Kim Sung-Chul
Lee Kwang-Hyun
Joo Hyun-Jong
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Abstract
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Most of sewage treatment plants in Korea is operated for the removal of organic material. Because of low C/N ratio of domestic wastewater it is very difficult to remove nitrogen and phosphorus from wastewater. Therefore C/N ratio is key factor for the removed of nitrogen and phosphorus. PSB(photosynthetic bacteria) can remove the nutrient materials, so this study is focused on PSB characterization of nutrient removal. PSB is possible to remove nitrogen, phosphorus in anaerobic and aerobic condition. This study try to find out condition of the PSB in SBR reactor, Batch reactor. It consists of three Mode. Mode 1, 2 is to apply activated sludge process and Mode 3 is that seeded PSB in the activated sludge process. As a result of SBR process, Mode 1, 2 which was activated sludge process showed 79~90%, 66~90% of SCODcr, 94.67~95.89%, 95.76~98.56% of TKN, and Mode 3 has 84~92% of SCODcr, 95.39~99.52% of TKN removal efficiency, respectively. When comparison with Mode 1, 2 and 3, most of nitrogen and phosphorus is removed at the anaerobic condition in Mode 3. but Mode 1, 2 has just revealed activated sludge process characterization. It would because of characterization of PSB.
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KEYWORD
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SBR, Photosynthetic bacteria, Nitrogen Removal, Phosphorus Removal
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