Toxicity assessment and geochemical model of chromium leaching from AOD slag
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- 作者：Bao Liu ; Junguo Li ; lijg99@163.com" class="auth_mail" title="E-mail the corresponding author ; Yanan Zeng ; Ziming Wang
- 关键词：AOD slag ; Leaching toxicity ; PHREEQC ; Pourbaix diagram ; Hexavalent chromium
- 刊名：Chemosphere
- 出版年：2016
- 出版时间：February 2016
- 年：2016
- 卷：144
- 期：Complete
- 页码：2052-2057
- 全文大小：527 K
文摘
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Chromium concentration and speciation in leachates from AOD slag were measured.
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Impact of Eh and pH on chromium speciation were discussed with Pourbaix diagram.
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Cr leaching model was established by PHREEQC simulation combined with FactSage.
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Toxic hexavalent chromium was released during the earlier leaching stage.
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After 10 days, trivalent chromium was the dominated speciation in leachates.