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ID 30802
本文ファイル
著者
キーワード
Adsorption
Calcium phosphate
Coal ash
Eutrophication
Phosphate
Sediment
NDC
地球科学・地学・地質学
抄録(英)
The deterioration of sediments is a serious environmental problem. Controlling nutrient release fluxes from sediments is important to alleviating eutrophication and to reducing terrigenous nutrient loads. The purpose of this study was to evaluate the phosphate removal performance of granulated coal ash (GCA) from seawater, which is produced from coal thermal electric power generation. Batch experiments were carried out to investigate the removal kinetics of phosphate from seawater under both oxic and anoxic conditions. Phosphate was removed well from seawater under both oxic and anoxic conditions. The adsorption isotherm for phosphate revealed that GCA could remove phosphate effectively from seawater above a concentration of 1.7 mu mol L-1. GCA can reduce the concentration of phosphate in seawater effectively under anoxic conditions where iron type adsorbents cannot be applied. Therefore, GCA could potentially be used to adsorb phosphate in the organically-enriched sediment, which generally occurs under highly reductive conditions.
掲載誌名
Marine Pollution Bulletin
60巻
8号
開始ページ
1188
終了ページ
1192
出版年月日
2010-08
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) 2010 Elsevier Ltd
関連情報URL
部局名
理学研究科