生物法同时脱除高温烟气中SO_2和NO_x的实验研究  

Study on biological simultaneous removal of SO_2 and NO_x from high temperature flue gas by biological trickling filter

作　　者：毛永杨[1,2] 王海玉[1] 孙珮石[1] 邹平[1] 董琳茜[1] 王洁[1] 毕晓伊[1] 邓辅唐[1] 郑晓云[3] 

机构地区：[1]云南大学工程技术研究院 [2]云南大学生命科学学院 [3]云南大学现代教育技术中心,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2012年第2期227-231,共5页Journal of Yunnan University(Natural Sciences Edition)

基　　金：国家自然科学基金资助项目(50908199);高等学校博士学科点专项科研基金资助课题(20105301110001);国家高技术研究发展计划"863计划"项目资助(2007AA06Z312);云南省联合支持国家科技项目资助(2008GA009)

摘　　要：对采用生物膜填料塔处理高温烟气中的SO2和NOx进行了实验研究,结果表明,生物膜填料塔能够有效地同时去除高温烟气中的SO2和NOx.在65℃,循环液流量4.0～7.0 L/h,pH=1.5,停留时间150 s,SO2进气质量浓度2 000～3 000 mg/m3,NOx进气质量浓度500～1 000 mg/m3的操作条件下,生物膜填料塔对SO2的去除率可达99.9%以上,对NOx的去除率为60.2%.The biological trickling filter was set up to study the influence factors of technological conditions on simultaneous desulfurization and denitrogenation of high temperature flue gas.The result revealed that sulfur dioxide and nitrogen oxides were simultaneously removed efficiently.The removal rate of SO2 was above 99.9%,and the removal rate of NOx was 60.2%,when temperature was 65 ℃,circulating liquid flow was 4.0—7.0 L/h,pH was 1.5,the residence time was 150 second,and inlet mass concentrations of SO2 and NOx were 2 000—3 000 mg/m3 and 500—1 000 mg/m3,respectively.

关 键 词：生物膜填料塔 高温烟气 脱硫脱氮 操作条件 

分 类 号：X701[环境科学与工程—环境工程]