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Effect on Phytoplankton by Hydraulic-Gun-Aerators andSelective Withdrawal in Hoengseung Reservoir

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2007, 16(1), pp.15-26
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

Choi, Ilhwan 1 Hakchul Kim 1

1한국수자원공사 수자원연구원

Accredited

ABSTRACT

Surface water is the main drinking water source in Korea. Algal bloom caused byphytoplankton in reservoir is common event in every summer season. To prevent or control thealgal blooms, artificial circulation system has been adopted in many reservoirs, includingHoengseung reservoir. Total 7 hydraulic-gun-aerators were installed around the intake tower inHoengseung reservoir since 2000. This study is to elucidate the effects of hydraulic-gun-aeratorson phytoplankton bloom, pH, DO, temperature and evaluate the selective withdrawal andvertical distribution of phytoplankton by means of submersible fluorescence probe, whichfeatures high correlation with a standard ISO method (r=0.90, P<0.0001) for chlorophyll-aquantification.

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