微砂+磁沉降快速除污工艺试验研究  

EXPERIMENTAL STUDY ON MICRO-SAND AND MAGNETIC SETTLEMENT FAST DECONTAMINATION PROCESS

作　　者：汪松美[1] 段明飞[1] 解清杰[1] 吴春笃[1,2] 

机构地区：[1]江苏大学环境学院,江苏镇江212013 [2]扬州环境资源职业技术学院,江苏扬州225000

出　　处：《环境工程》2012年第5期35-38,共4页Environmental Engineering

摘　　要：为了探讨微砂在磁沉降快速除污工艺中的应用,设计了微砂和聚合氯化铝(PAC)的最佳组合试验,分析影响微砂在磁絮凝中絮凝效果的因素。结果表明:当微砂投加量为300 mg/L,PAC投加量为80 mg/L,磁场强度为300 mT,pH为6时,微砂在磁絮凝中具有最佳处理效果,对TSS、COD和TP去除率分别达到最大值93.66%、74.29%和89.10%。同时在投加微砂和磁沉降的共同作用下,水力停留时间仅为8 min。In order to discuss the application of micro-sand in magnetic settlement rapid decontamination process,the best combination test of micro-sand and polymeric aluminium（PAC） was designed,and the impact factors of micro-sand in magnetic flocculation effect were analyzed.The results showed that when the micro-sand dosing quantity was 300 mg/L,PAC dosing quantity was 80 mg/L,magnetic field intensity was 300 mT,and pH was 6,the micro-sand in magnetic flocculation had the best processing efficiency,and the removal rate of TSS、COD and TP was 93.66%,74.29% and 89.10% respectively.And under the combined action of micro-sand and magnetic settlement,the hydraulic retention time was only 8 min.

关 键 词：微砂 磁沉降 快速除污 

分 类 号：X703[环境科学与工程—环境工程]