This study was investigate to evaluate the phosphate uptake rate of green algae in relation to diurnal rhythm and algae control method. The phosphate uptake rates of Chlorella vulgaris and Ankistrodesmus convolutus increased in light period and decreased in dark period. On the contrary, those of Chlamydomonas sp. showed a peak in the late dark period. The differences among species in phosphate uptake in relation to diurnal rhythm were due to the severe competition among species and seemed to alleviate the competition for nutrient supplies. The compound of CellCaSi, Ca and Fe showed the effective removal of the phosphorus. The extracts from rice and barley straw exhibited a significant effect on the growth inhibition of Microcystis aeruginosa.

• 장감용(건양대학교 의학과) | Kam-Yong Jang Corresponding Author
• 임경묵(클린월드하이테크(주)) | Kyoung-Mook Lim
• 노태목(클린월드하이테크(주)) | Tae-Mok Noh
• 이학수(클린월드하이테크(주)) | Hac-Su Lee
• 박성하(한밭대학교 화공응용화학부) | Sung-Ha Park