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KMID : 1024520050140090873
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Journal of the Environmental Sciences
2005 Volume.14 No. 9 p.873 ~ p.879
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Evaluation on the Phosphate Uptake Rate of Green Algae under Diurnal Rhythm and Algae Control Method
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Jang Kam-Yong
Lim Kyoung-Mook
Noh Tae-Mok
Lee Hac-Su
Park Sung-Ha
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Abstract
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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.
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KEYWORD
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Phosphate uptake rate, Green algae, Diurnal rhythm, CellCaSi, Rice and barley straw
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