通过交变电磁场磁化液体聚合硫酸铁(PFS)混凝剂,研究了磁化混凝的工艺条件及除藻性能.结果表明,在PFS投药量80 mg/L、电流强度1.0A、频率75 Hz、磁化时间3min、pH=8的条件下,处理效果最好,小球藻的去除率达90.7％.与常规混凝相比,磁化混凝的混凝剂用量节省了12.5％,除藻率提高了5.7％.磁化混凝工艺具有处理效率更高、投药量更少、污泥性能更好等优点.并初步解释了磁化混凝除藻的机理.
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