| Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
The algal and plant flocculants are two-step type flocculants which requires coagulant. In addition, their flocculation ability is lower than synthetic polymer flocculants. The aim of this study is to obtain one-step type algal and plant flocculant and to improve their flocculation ability by complexation reaction of tannin with enzyme and/or mixing metal salt.
As metal salts, magnesium and calcium salts were used, both of which gave one-step type flocculant. Relatively low concentration of calcium salt revealed to yield high functional one-step type flocculant with alginic acid which was active ingredient of algae.
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