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ID 30801
本文ファイル
著者
キーワード
Acid volatile sulfide
Blast furnace slag
Eutrophication
Marine sediment
Phosphate
Remediation
NDC
地球科学・地学・地質学
抄録(英)
There is an urgent need to control nutrient release fluxes from organically-enriched sediments into overlying waters to alleviate the effects of eutrophication. This study aims to characterize blast furnace slag (BFS) and evaluate its remediation performance on organically-enriched sediments in terms of suppressing nutrient fluxes and reducing acid volatile sulfide. BFS was mainly composed of inorganic substances such as CaO, SiO2, Al2O3 and MgO in amorphous crystal phase. Container experiments showed that the phosphate concentration in the overlying water, its releasing flux from sediment and AVS of the sediment decreased by 17–23%, 39% and 16% compared to the control without BFS, respectively. The loss on ignition was significantly decreased by 3.6–11% compared to the control. Thus, the application of BFS to organically-enriched sediment has a suppressive role on organic matter, AVS concentration and phosphate releasing flux from sediments and therefore, is a good candidate as an effective environmental remediation agent.
掲載誌名
Marine Pollution Bulletin
60巻
4号
開始ページ
573
終了ページ
578
出版年月日
2010-04
出版者
Pergamon Elsevier Science Ltd
ISSN
0025-326X
NCID
出版者DOI
言語
英語
NII資源タイプ
学術雑誌論文
広大資料タイプ
学術雑誌論文
DCMIタイプ
text
フォーマット
application/pdf
著者版フラグ
author
権利情報
Copyright (c) 2009 Elsevier Ltd
関連情報URL
部局名
理学研究科