Fenton氧化处理水中甲基叔丁基醚  

Treatment of Methyl Tert-Butyl Ether by Using Fenton Oxidation

作　　者：孙晓雪 王德举[1] 齐升东 王宁[1] 王杰[1] 蒋翠翠 SUN Xiaoxue;WANG Deju;QI Shengdong;WANG Ning;WANG Jie;JIANG Cuicui(State Key Laboratory of Green Chemical Engineering and Industrial Catalysis,Shanghai Research Institute of Petrochemical Technology,SINOPEC,Shanghai 201208,China)

机构地区：[1]中国石油化工股份有限公司上海石油化工研究院,绿色化工与工业催化国家重点实验室,上海201208

出　　处：《化学反应工程与工艺》2021年第2期175-180,共6页Chemical Reaction Engineering and Technology

基　　金：国家重点研发计划(2018YFC1803303,2018YFC1803304)。

摘　　要：采用芬顿(Fenton)氧化工艺处理甲基叔丁基醚(MTBE)污染废水。筛选了H_(2)O_(2)稳定助剂,在常规Fenton氧化基础上加入无机磷酸盐稳定H_(2)O_(2),探究了初始pH值(pH0值),硫酸亚铁和H_(2)O_(2)物质的量之比(Fe^(2+):H_(2)O_(2)),磷酸铵和H_(2)O_(2)物质的量之比(P:H_(2)O_(2))以及MTBE和H_(2)O_(2)物质的量之比(MTBE:H_(2)O_(2))对水中总有机碳(TOC)去除率的影响。研究结果表明:采用磷酸铵为稳定剂,60 min内H_(2)O_(2)分解率为9.6%,比不加磷酸铵时降低了约60%;在pH0值为4.8,Fe^(2+):H_(2)O_(2)为1:10,P:H_(2)O_(2)为1:55,MTBE:H_(2)O_(2)为1:40的条件下,TOC去除率比不加稳定剂时提高约20%。添加稳定剂磷酸铵显著提高了Fenton氧化MTBE的处理效果,对Fenton氧化处理有机废水具有重要参考意义。Fenton oxidation was applied for methyl tert-butyl ether(MTBE)degradation.H_(2)O_(2)stabilizers were firstly screened and inorganic phosphate was proved to be the best stabilizer.Factors affecting TOC removal efficiency including initial pH value(pH0),molar ratio of ferrous sulfate to H_(2)O_(2)(Fe^(2+):H_(2)O_(2)),molar ratio of ammonium phosphate to H_(2)O_(2)(P:H_(2)O_(2))and molar ratio of MTBE to H_(2)O_(2)(MTBE:H_(2)O_(2))were investigated.The results showed to H_(2)O_(2)decomposition was 9.6%in 60 min with ammonium phosphate as stabilizer,which was 60%lower than that without ammonium phosphate.When pH0 value was 4.8,Fe^(2+):H_(2)O_(2)was 1:10,P:H_(2)O_(2)was 1:55,and MTBE:H_(2)O_(2)was 1:40,TOC removal efficiency reached optimum value,which was 20%higher than that without ammonium phosphate.The addition of ammonium phosphate as stabilizer significantly improved the treatment effect of Fenton oxidation on MTBE degradation,which had an important reference significance for Fenton oxidation treatment of organic wastewater.

关 键 词：芬顿氧化 甲基叔丁基醚 稳定剂 

分 类 号：X703.1[环境科学与工程—环境工程]