One-step removal of Cr(VI) at alkaline pH by UV/sulfite process: Reduction to Cr(III) and in situ Cr(III) precipitation
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- 作者：Bihuang Xiea ; 1 ; Chao Shana ; 1 ; Zhe Xua ; Xuchun Lib ; Xiaolin Zhanga ; Jiajia Chena ; Bingcai Pana ; bcpan@nju.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Cr(VI) ; UV/sulfite process ; Alkaline pHs ; Reduction ; Precipitation
- 刊名：Chemical Engineering Journal
- 出版年：2017
- 出版时间：15 January 2017
- 年：2017
- 卷：308
- 期：Complete
- 页码：791-797
- 全文大小：690 K
文摘
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Cr(VI) was efficiently reduced to Cr(III) at alkaline pHs by UV/sulfite process.
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Common ions and organic matters interfered with Cr(VI) reduction slightly.
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Spontaneous precipitation of Cr(III) occurred in the presence of Ca2+ (>2 ppm).
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eaq− was identified as the dominant reactive species in UV/sulfite process.