Journal of environmental and Sanitary engineering (환경위생공학)

Korean Society for Environmental Sanitary Engineers (대한환경위생공학회)
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The Study on Nitrogen and Phosphorus Removal Using Photosynthetic Bacteria in SBR Process

광합성 미생물을 이용한 SBR공법에서의 질소, 인 동시제거에 관한 연구

  • Kim Yung-Ho (Kyonggi Univ. Department of Environmental Engineering) ;
  • Kim Sung-Chul (Kyonggi Univ. Department of Environmental Engineering) ;
  • Lee Kwang-Hyun (Kyonggi Univ. Department of Environmental Engineering) ;
  • Joo Hyun-Jong (Kyonggi Univ. Department of Environmental Engineering)
  • Published : 2005.06.01
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Abstract

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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References

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