Abstract
As the eutrophication in rivers becomes serious, the green algae bloom has also a great influence on the water quality in recent years. In South Korea, since most of the water resources come from rivers, it is important to predict and prevent the causative phenomena beforehand in order to prevent contamination of water resources. In order to know the number of Chl-a in the current stream, the process is complex and time-consuming. To solve these problems, this study compared the growth rate of Chl-a by temperature and DO and developed a formula that can predict the number of Chl-a by using the UV absorbance value. Culturing for developing formula were conducted inside a constant temperature chamber, and the temperature and DO conditions were determined by referring to river water quality of 2016. Culturing showed that Chl-a grew equally well at a temperature of 27oC under all DO conditions. Also, by developing formula that can predict the number of Chl-a using DO, temperature and UV absorbance values, so that can know the number of Chl-a without doing complex experiment.
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