A new process of continuous three-stage co-precipitation of arsenic with ferrous iron and lime
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- 作者：Jie Cuia ; Yaguang Dua ; Hongxia Xiaoa ; Qiushi Yib ; Dongyun Dua ; dydu666@mail.scuec.edu.cn" class="auth_mail
- 关键词：Acid wastewater ; Arsenic ; Co-precipitation ; Ferrous sulfate ; Lime
- 刊名：Hydrometallurgy
- 出版年：May 2014
- 年：2014
- 卷：146
- 期：Complete
- 页码：169-174
- 全文大小：376 K
文摘
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Develop a three stage method for As and Cd removal for dirty acid wastewater
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The Fe/As molar ratio was decreased from 8:1–20:1 to 4:1.
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Air oxidation instead of oxidant was used to reduce the operation cost.
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Bench, pilot and industrial-scale tests exhibit efficient As and Cd removal.
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Resource utilization of the produced solid waste was proposed.