Mineralogical determination and geo-chemical modeling of chromium release from AOD slag: Distribution and leachability aspects
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- 作者：Junguo Li ; lijg99@163.com" class="auth_mail" title="E-mail the corresponding author ; Bao Liu ; Yanan Zeng ; Ziming Wang
- 关键词：AOD slag ; Mineral analysis ; FactSage ; PHREEQC ; Leaching toxicity
- 刊名：Chemosphere
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：167
- 期：Complete
- 页码：360-366
- 全文大小：720 K
文摘
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Mineralogical composition of AOD slag were identified via X-ray and SEM.
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Larnite, merwinite, pyroxene and periclase with Cr dispersed were the main minerals.
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Chromium concentration in leachates obtained by EN12457-2 were measured.
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Geochemical model was established by PHREEQC simulation combined with FactSage.
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Cr leaching from AOD slag was controlled by Cr(Ⅲ)-hydroxide.