호수수, 하천수와 하수처리수에서 미세조류 증식 특성 및 영양 염류 제거 효과

초록

The possibility of nutrient removal during Scenedesmus sp. growth in Lake Paldang,Geongan cheon stream, and the outflow from a wastewater treatment system was examined. Scenedesmus sp. grew well in Lake Paldang water when total nitrogen (TN) and total phosphorus (TP) values were 1.9 and 0.02 mg L^-1, respectively, and 50% of the nutrients were removed. In Geongan cheon stream, the TN and TP was 3.0mg L^-1 and 0.09 mg L^-1, respectively, chlorophyll-a reached a maximum of 239~259m^-3, and 50% of the nutrients were removed. In the wastewater treatment outflow,where Scenedesmus sp. already existed, the organism grew well without inoculation. Scenedesmus sp. can grow with proper inoculation and physical turbulence in natural waters, such as lake and stream water, and nutrients can be eliminated as phytoplankton growth occurs.

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