液相催化氧化对生物膜填料塔净化SO_2和NO_X烟气的促进作用  

STUDY ON ACCELERATION OF AQUEOUS CATALYTIC OXIDATION TO BIOLOGICAL TRICKLING FILTER PURIFYING SO_2 & NO_X IN FLUE GAS

作　　者：王洁[1] 孙珮石[1] 王恒颖[1] 黄贤峰[1] 周小兰[1] 常学秀[2] 杨常亮[1] 

机构地区：[1]云南大学环境与湖泊研究院,云南昆明650091 [2]云南大学生命科学学院,云南昆明650091

出　　处：《环境工程》2008年第1期41-43,37,共4页Environmental Engineering

基　　金：国家自然科学基金项目(50478116);国家“863”计划资助项目(2002AA649050)

摘　　要：采用在生物膜填料塔循环液中加入Fe^2＋、Mn^2＋、Zn^2＋、Al^3＋四种金属离子，进行了金属离子催化剂对生物膜填料塔净化SO2和NOx烟气的影响因素研究和相关净化机理讨论分析，结果表明：采用液相催化氧化与生物法同时净化烟气时，当进口气体流量为0.1 m^3／h、循环液流量为10L／h、pH值控制在1.5-3.0，SO2、NOx进口气体浓度分别为1000-5000mg／m^3和300-1500mg／m^3时，净化效果比单一采用生物法时好，SO2和NOx净化效率分别达到95％以上和50％左右，说明金属离子催化剂对SO2和NOx烟气净化有一定的促进作用。The study adopted biological trickling filter to carry out the experiment of purifying SO_2 & NO_X in flue gas,in which circulated liquid with Fe2+,Mn2+,Zn2+ and Al3+ was used.The influence and the varying rule of catalyzer on biological trickling filter purifying SO_2 & NO_X had been studied.when the gas flow was 0.1 m3/h,the concentration of SO_2 & NO_X in influent gas was 1 000-5 000 mg/m3 and 300-1 500 mg/m3,circulated liquid flow was 10 L/h and pH was 1.5-3.0,the result showed that the efficiency of aqueous catalytic oxidation and biological purification was better than that of biological purification,which showed the acceleration of catalyzer was effective.The efficiency of SO_2 & NO_X could be achieved above 95%and about 50% respectively by this method.

关 键 词：液相催化氧化 生物膜填料塔 SO2和NOx 烟气 

分 类 号：X701[环境科学与工程—环境工程] X701.3