Hybrid precipitation-nanofiltration treatment of effluent pond water from phosphoric acid industry

详细信息    查看全文

• 作者：Mohammad Al-Harahsheh^a ; ^{msalharahsheh@just.edu.jo} ; Yazan A. Hussain^a ; ^b ; Habis Al-Zoubi^c ; Marwan Batiha^c ; Esraa Hammouri^a
• 关键词：Phosphoric acid ; Flourosilicic acid ; Industrial wastewater ; Chemical precipitation ; Nanofiltration ; Hybrid water treatment process
• 刊名：Desalination
• 出版年：2017
• 出版时间：16 March 2017
• 年：2017
• 卷：406
• 期：Complete
• 页码：88-97
• 全文大小：1289 K
• 卷排序：406

文摘

A novel hybrid precipitation- NF treatment was applied to wastewater for purification and the potential recovery of H3PO4. Most silicon was precipitated leaving almost 60% of H3PO4 in the effluent wastewater at Ca(OH)2 dosage of 130 g/L. Three types of membranes (NF90, NF270, and BW30) were tested for potential treatment of effluent acidic wastewater. NF90 gave a high rejection, while NF270 showed a reasonable rejection with high flux. NF270 showed a potential selective recovery of H3PO4. NF90 and BW30 have high rejections for almost all species.