Electric arc furnace dust as magnetic carrier particles for removal of micro-fine particles from suspensions

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• 作者：Honghu Tang ; Li Wang ; Wei Sun ; ^{sunmenghu@csu.edu.cn} ; Yuehua Hu ; Haisheng Han ; Jihua Zhai
• 关键词：Suspended solids removal ; Micro-fine particles ; Electric arc furnace (EAF) dust ; Magnetic flocculation ; Magnetic carrier
• 刊名：Separation and Purification Technology
• 出版年：2017
• 出版时间：4 April 2017
• 年：2017
• 卷：176
• 期：Complete
• 页码：220-230
• 全文大小：3245 K
• 卷排序：176

文摘

EAF dust was first used as a magnetic carrier to remove micro-fine particles. EAF dust was found to mainly consist of γ-Fe2O3 and be partly in nanoscale. 97.72% of SS was removed by EAF dust magnetic flocculation within 30 s. External magnetic fields can accelerate settling and compress settling sludge. EAF dust magnetic flocculation was a novel low-cost method for SS removal.