UV条件下过一硫酸盐对垃圾渗滤液的后处理  

Peroxy-monosulflate used for the post treatment of landfill leachate under UV condition

作　　者：谢四才 钟玉凤 杨安凤 Xie Sicai;Zhong Yufeng;Yang Anfeng(School of Resources and Environmental Engineering,Panzhihua University,Panzhihua 617000,China)

机构地区：[1]攀枝花学院资源与环境工程学院,四川攀枝花617000

出　　处：《工业水处理》2018年第10期75-78,共4页Industrial Water Treatment

摘　　要：在UV照射下利用过一硫酸盐(PMS)对垃圾渗滤液生化处理出水进行后处理,考察了PMS投加量、反应时间、溶液初始pH、激活剂种类和投加量对处理效果的影响。结果表明,当pH=7.3,反应时间为1 h,PMS投加量为150mg/L,激活剂投加量为6 mg/L时,PMS在UV照射下能有效对垃圾渗滤液进行降解,COD去除率可达到90%以上。不同激活物质的激活效果大小为Ag+>Co2+>Mn2+>H2O2;金属离子能有效提高PMS对有机污染物的降解且可缩短降解时间。Peroxy-monsulfate(PMS)has been used for the post treatment of biochemical treated landfill leachate eff-luent under UV irradiation,and the influence of PMS dosage,reaction time,initial pH of solution,types and dosage of activator on the treatment effect investigated.The results show that when the pH=7.3,reaction time is 1 h,dosage of PMS 150 mg/L,and dosage of activator 6 mg/L,PMS can effectively degrade the landfill leachate under UV irradia-tion,and the removing rate of COD is more than 90%.The size sequence of activation effects of different activators are Ag+>Co2+>Mn2+>H2O2.Metal ions can effectively improve the degradation of organic pollutants by PMS and shorten the degradation time.

关 键 词：垃圾渗滤液 过一硫酸盐 硫酸根自由基 高级氧化 羟基自由基 

分 类 号：X703.1[环境科学与工程—环境工程]