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Factors Affecting Phytoplankton Removal by Electro-Oxidation of Artificial Seawater
Paper Type  |
Contributed Paper |
Title |
Factors Affecting Phytoplankton Removal by Electro-Oxidation of Artificial Seawater |
Author |
Niwooti Whangchai*, Nakao Nomura and Masatoshi Matsumura |
Email |
niwoot@mju.ac.th |
|
Abstract: This study investigated the factors affecting removal of phytoplankton by electro-oxidation in artificial shrimp pond water, containing organic matter (in terms of COD; 8, 41 and 94 mg/l) and a different pHs (6.5, 7.2, 8.2, 8.9 and 9.5). It was conducted in a batch mode by using artificial seawater (salinity 35 ppt, temperature 24 + 1 °C) containing phytoplankton (Skeletonema sp.) and organic matter. Ground shrimp feed was added to the water as an organic matter source. A DC power supply was used for electro-oxidation. The phytoplankton (in terms of chlorophyll a) and COD removal rate were determined at different specific energies (0-0.6 watt x h/l). Electro-oxidation readily decreased phytoplankton, while COD was difficult to remove. Chlorophyll a reduction efficiency at low pH was better than that at high pH. In contrast, the efficiency of reduction in water containing high COD was lower than in water containing lower COD.
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Start & End Page |
255 - 259 |
Received Date |
2003-03-30 |
Revised Date |
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Accepted Date |
2003-12-01 |
Full Text |
Download |
Keyword |
electro-oxidation, oxidants, shrimp pond water, disinfection, phytoplankton removal |
Volume |
Vol.30 No.3 (DECEMBER 2003) |
DOI |
|
Citation |
Whangchai* N., Nomura N. and Matsumura M., Factors Affecting Phytoplankton Removal by Electro-Oxidation of Artificial Seawater, Chiang Mai Journal of Science, 2003; 30(3): 255-259. |
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