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ID 14656
本文ファイル
著者
Baes, Aloysius U.
Okada, Mitsumasa
キーワード
bivalent cation
coagulation
moringa oleifera
natural coagulant
salt extraction
NDC
公害・環境工学
内容記述
This study focuses on the coagulation mechanism by the purified coagulant solution (MOC-SC-PC) with the coagulation active component extracted from M. oleifera seeds using salt solution. The addition of MOC-SC-PC into tap water formed insoluble matters. The formation was responsible for kaolin coagulation. On the other hand, insoluble matters were not formed when the MOC-SC-PC was added into distilled water. The formation was affected by Ca2+ or other bivalent cations which may connect each molecule of the coagulation active component in MOC-SC-PC and form netlike structure. The coagulation mechanism of MOC-SC-PC seemed to be an enmeshment by the insoluble matters with netlike structure. In case of Ca2+ ion (bivalent cations), at least 0.2mM was necessary for coagulation at 0.3 mg-C l-1 dose of MOC-SC-PC. Other coagulation mechanisms like compression of double layer, interparticle bridging or charge neutralization were not responsible for the coagulation by MOC-SC-PC.
掲載誌名
Water Research
35巻
3号
開始ページ
830
終了ページ
834
出版年月日
2001-02
出版者
Elsevier
ISSN
0043-1354
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) 2001 Elsevier Science Ltd.
関連情報URL(IsVersionOf)
http://dx.doi.org/10.1016/S0043-1354(00)00296-7
部局名
工学研究科