Selective acidic elution of Ca from sewage sludge ash for phosphorus recovery under pH control

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• 作者：B.H. Lim ; Dong-Jin Kim ; ^{dongjin@hallym.ac.kr}
• 关键词：Acid pretreatment ; Ca elution ; Phosphorus recovery ; Sewage sludge ash
• 刊名：Journal of Industrial and Engineering Chemistry
• 出版年：2017
• 出版时间：25 February 2017
• 年：2017
• 卷：46
• 期：Complete
• 页码：62-67
• 全文大小：988 K
• 卷排序：46

文摘

P leaching and recombination in SSA strongly depend upon pH. pH control at 4.0 after HCl pretreatment of SSA elutes 81% of Ca while captures 95.9% of the P. Eluted P during acid treatment combined to form Al–P complex.