In-situ mobilization and transformation of iron oxides-adsorbed arsenate in natural groundwater
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- 作者：Di Zhanga ; b ; Huaming Guoa ; b ; hmguo@cugb.edu.cn" class="auth_mail" title="E-mail the corresponding author ; Wei Xiua ; b ; Ping Nib ; Hao Zhengb ; Cao Weic
- 关键词：Arsenate ; Iron oxides ; Reductive dissolution ; Mineral transformation
- 刊名：Journal of Hazardous Materials
- 出版年：2017
- 出版时间：5 January 2017
- 年：2017
- 卷：321
- 期：Complete
- 页码：228-237
- 全文大小：2731 K
文摘
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In situ experiments were used to delineate As mobilization from Fe(III) oxides.
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Arsenic desorption occurred from ferrihydrite, goethite and hematite.
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Arsenic was released from reductive dissolution of ferrihydrite.
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Transformation of ferrihydrite to secondary Fe minerals favored As mobilization.
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Goethite and hematite would be the major oxides controlling groundwater As content.
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