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以氯化铝为混凝剂,采用混凝-超滤联用工艺,对腐殖酸(HA)模拟水样进行处理,研究在不同混凝和水质条件下,包括硫酸根离子和铝离子的摩尔比以及水样p H等,对混凝和混凝-超滤联用工艺净水效果的影响。结果表明,使用氯化铝混凝剂对HA水样进行混凝-超滤处理时,在氯化铝投加量为5 mg/L,硫酸根离子与铝离子摩尔比为30∶1,p H为7时,HA的去除效率最高。破碎剪切条件下,以HA水样为去处对象时,投加硫酸根离子对工艺运行工况无明显影响。
Using aluminum chloride as coagulant, the humic acid (HA) simulated water sample was treated by the coagulation - ultrafiltration combined process. The effects of different coagulation and water quality conditions including sulfate ion and aluminum ion Molar ratio and water samples p H, coagulation and coagulation - ultrafiltration combined with the effect of water purification. The results showed that when aluminum chloride coagulant was used for the coagulation-ultrafiltration treatment of HA water sample, when the aluminum chloride dosage was 5 mg / L, the molar ratio of sulfate ion to aluminum ion was 30: 1, p When H is 7, HA has the highest removal efficiency. Under the conditions of broken shearing and HA water sample, the dosing of sulfate ion had no significant effect on the operating conditions of the process.