研究了用聚丙烯酸辅助的陶瓷膜分离技术处理含锶、铯、钴的重金属废水.重点探讨了聚丙烯酸与锶、铯、钴离子的质量浓度比P:M值和溶液pH对重金属离子截留率和膜通量的影响,得到了三种重金属离子的最佳P:M值:锶为10,铯为33.5,钴为18和最适pH为6～7.结果显示,同时提高溶液中聚丙烯酸和三种重金属离子的浓度,并保持溶液中的P:M值不变,溶液中三种重金属离子截留率不受其进水浓度的影响.研究表明,在最佳P:M值和最适pH时,用聚丙烯酸辅助陶瓷膜分离技术处理含锶、铯、钴的重金属废水,废水中三种重金属离子的截留率分别为99.7%、95.1%和99.9%,实验结果表明用聚丙烯酸辅助可以大大提高陶瓷膜对重金属废水中锶、铯、钴的去除效率.
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