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  1. 国際連携センター
  2. その他 (国際連携センター)

Mechanism of As(V) removal in wastewater using Fe(III)-supported exchange resin

http://hdl.handle.net/10458/6279
http://hdl.handle.net/10458/6279
97f21132-1e6b-4861-b0b4-b043cc490a42
名前 / ファイル ライセンス アクション
p5_arsenic2015.pdf 本文 (558.8 kB)
Item type その他 / Others(1)
公開日 2020-06-21
タイトル
タイトル Mechanism of As(V) removal in wastewater using Fe(III)-supported exchange resin
言語 en
言語
言語 eng
キーワード
言語 en
主題Scheme Other
主題 wastewater treatment, As (V) removal, ion-exchange resin, column method
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_1843
資源タイプ other
著者 Morita, Masao

× Morita, Masao

WEKO 29981

en Morita, Masao

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Tokoro, Chiharu

× Tokoro, Chiharu

WEKO 29982

en Tokoro, Chiharu

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Futami, Fumiya

× Futami, Fumiya

WEKO 29983

en Futami, Fumiya

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抄録
内容記述タイプ Abstract
内容記述 Today, mine development and natural pollution caused As contaminated water. In southeastern Asia, some people use the groundwater containing As more than 10μg/L for drinking, and it is worried that they are exposed to As addiction. In this study, we focused on the construction of an economical and simplified process for treatment of As(V) contaminated drinking water. The (co-)precipitation method using ferrihydride is commonly applied for As(V) removal, but it generates many sludge and needs much time for liquid/solid separation. Objective of this study Is simultaneous processing of As(V) removal and sold/liquid separation using Fe(III)-supported ion exchange resins.
At first, As(V) removal mechanism was investigated with batch beaker test, by ICP-AES analysis for filtrate and Electron probe micro analyzer (EPMA) and X-ray absorption fine structure (XAFS) analysis for solids. These results suggested that Fe(lll) diffusion inside the resin was the rate-determining step, thereby requiring prolonged reactions for As(V) removal. These solid analysis results also suggested that As(V) was removed by the combination of surface precipitation of ferric arsenate and surface complexation to ferrihydrite.
Secondly column test packed Fe(III)-supported resin was also conducted for synthetic As(V) wastewater. Results showed As(V) was successfully removed under SV 9.82 hr^-1 until 192 BV.
言語 en
書誌情報 en : 4th InternationalArsenic Symposium in MIYAZAKI 2015

p. 88-93, 発行日 2015-10
出版者
出版者 University of Miyazaki, IRISH
言語 en
著者版フラグ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
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Ver.1 2023-05-15 12:24:59.210815
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Morita, Masao, Tokoro, Chiharu, Futami, Fumiya, 2015, Mechanism of As(V) removal in wastewater using Fe(III)-supported exchange resin: University of Miyazaki, IRISH, 88–93 p.

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