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製鋼スラグを活用した海域底質からの微細藻類の増殖抑制

フォーマット:
論文
責任表示:
小杉, 知佳 ; 加藤, 敏朗 ; 三木, 理
言語:
日本語
出版情報:
海洋理工学会 = Marine Science and Technology Society, 2014-12-27
著者名:
掲載情報:
Journal of Advanced Marine Science and Technology Society = 海洋理工学会誌
ISSN:
1341-2752  CiNii Articles  Webcat Plus  JAIRO
巻:
20
通号:
1-2
開始ページ:
1
終了ページ:
9
バージョン:
publisher
概要:
The use of steelmaking slag as a material is being advanced as a means of improving the marine environment in coastal waters. Recently, mixing steelmaking slag with dredged material has been developed for restoring tidal flat estuaries. In this study, the control of microalgae outgrowth from dredged material by steelmaking slag was examined in a batch experiment and mesocosm experiment. The dredged material in artificial seawater showed both the release of nutrients (PO4-P, D-Inorganic N, D-Si) and the outgrowth of planktonic microalgae. Also, it was found that the predominant species of planktonic microalgae in the artificial seawater was Haptophyta, Coccolithophorids. On the other hand, when steelmaking slag was added to the dredged material, the hardness of the resulting mixture increased, and the outgrowth of microalgae from the dredged material was inhibited. The mechanism for this is follows. The application of steelmaking slag to the dredged material improved the hardness of the dredged material by forming calcium-silicate-hydrooxide (CSH), which strongly affected the microalgae outgrowth from the dredged material. 続きを見る
URL:
http://hdl.handle.net/2297/46796

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