Purification of Kahokugata Lagoonal Water by Reed Bed System.
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概要
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The effect of reed bed system on the quality of Kahokugata lagoonal water was studied. The effects on water quality were examined by fractionation of dissolved organic carbon, nitrogen, and phosphorus using gel-chromatography. The suspended components of total nitrogen, total phosphorous, BOD, and COD were removed using reed bed system more efficiently than the soluble components of total nitrogen, total phosphorous, BOD, and COD. Based on UV220, UV260, TOC, T-N, and T-P three major fractions were identified by gel-chromatography of Kahokugata lagoonal water. Among them, the 3rd fraction (the lowest molecular weight) decreased after passing through the reed bed, while the 1st one with the highest molecular weight increased. The relative ratio of hydrophilic component increased after the purification of Kahokugata lagoonal water using reed bed system; this suggests that the removal ratio of hydrophobic component was higher than that of hydrophilic component.
- 日本環境化学会の論文
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