摘要
以氯化铝为混凝剂,采用混凝-超滤联用工艺,对黄腐酸(FA)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pH等,对混凝和混凝-超滤联用工艺净水效果的影响。研究结果表明,使用氯化铝混凝剂,对FA水样进行混凝-超滤处理时,在氯化铝投加量为5 mg/L时,硫酸根离子与铝离子比例为10∶1,pH为7时,FA的去除率最高。在破碎剪切条件下,对FA水样,投加硫酸根离子能得到较好的处理效果。
Experiment on the fulvic acid removal was conducted by means of coagulation-ultrafiltration of coagulants aluminum chloride. Meanwhile,in terms of studying effects of the membrane fouling for further researches,the membrane and size of floc were changed when applying different conditions of coagulation,including sulfate ion,p H. The result shows that aluminum sulfate with 5 mg / L,aluminum ion and sulfate ion ratio of 10∶ 1 and p H of 7 is optimum to coagulation-ultrafiltration on the fulvic acid. In the broken shear conditions,sulfate ion dosing had better treatment effect on the process operating conditions on the fulvic acid.
出处
《科学技术与工程》
北大核心
2016年第35期303-309,共7页
Science Technology and Engineering
关键词
氯化铝
硫酸根
混凝
超滤
黄腐酸
aluminum chloride
sulfate
coagulation
ultrafiltration
the fulvic acid
