湿式洗涤/过氧化物氧化法脱除甲硫醇恶臭气体:H_2O_2、过二硫酸盐、过一硫酸氢盐的比较  

Wet scrubbing process for methyl mercaptan odor treatment with peroxides: Comparion of hydrogen peroxide,persulfate, and peroxymonosulfate

作　　者：杨世迎[1,2] 王雷雷[2] 冯琳玉 赵腊娟 霍梅青 

机构地区：[1]海洋环境与生态教育部重点实验室,青岛266100 [2]中国海洋大学环境科学与工程学院,青岛266100

出　　处：《环境化学》2014年第1期81-86,共6页Environmental Chemistry

基　　金：中国海洋大学"中央高校基本科研业务费青年教师科研专项基金项目"(201113005);国家自然科学基金(21107101)资助

摘　　要：对比了碱性条件下3种过氧化物(过氧化氢H2O2、过二硫酸盐PS、过一硫酸氢盐PMS)对恶臭气体CH3SH的湿式洗涤脱除能力.实验发现在pH=12时,相对于H2O2和PS,PMS脱除CH3SH的效果最好,PMS对CH3S-的降解能力最强,反应迅速且不受pH及自身浓度的影响,不同浓度H2O2降解CH3S-的能力大于PS.随着pH的增加(pH=12、12.5、13),PS降解CH3S-的速率基本不变,而H2O2的降解速率迅速减小.分析发现,降解过程的产物中含有甲磺酸(CH3SO3H),并且是PMS脱除过程中的主要产物.The abilities of methyl mercaptan （CH3SH） odor treatment by wet scrubbing process with hydrogen peroxide （H2O2）,persulfate （PS）,and peroxymonosulfate （PMS） were compared under alkaline condition. It was found that PMS had the highest CH3SH removal efficiency among the three peroxides at pH 12. The rate of methyl mercaptan ion （CH3S-） removal oxidized by PMS was highest and it is not be influenced by PMS concentration and initial pH. The ability of H2O2 was greater than that of PS. But the rate of CH3S- degradation by H2O2 decreased quickly with the increasing pH from 12 to 13,whereas the rate for PS remained almost the same. Methanesulfonic acid （CH3SO3H） was detected as the product of CH3SH removal,and was the main product for PMS treatment.

关 键 词：恶臭处理 甲硫醇 过氧化物 碱液吸收 甲磺酸 

分 类 号：X701[环境科学与工程—环境工程]