生物过滤法去除废气中乙酸乙酯及填料性质研究  

Removal of ethyl acetate in waste gases by biofiltration and characterization of packing materials

作　　者：孙玉梅[1] 全燮[1] 陈景文[1] 杨凤林[1] 薛大明[1] 赵雅芝[1] 罗伟峰[2] 

机构地区：[1]大连理工大学环境科学与工程学院,辽宁大连116012 [2]大连轻工业学院食品科学与生物工程系,辽宁大连116034

出　　处：《大连理工大学学报》2002年第1期51-55,共5页Journal of Dalian University of Technology

基　　金：辽宁省科技基金资助项目 ( 9910 6 0 0 2 0 2 );大连市科委重点科技攻关资助项目

摘　　要：研究了进气中乙酸乙酯浓度和空床停留时间对生物过滤去除废气中乙酸乙酯效果的影响 .生物过滤器以堆肥和珍珠岩为填料 ,填料中水质量分数近 6 0 % ,p H 6 .5 ,在室温下 ,经过 80 d( 96 0 h)的运行 ,进气乙酸乙酯负荷由 8g .m- 3 .h- 1提高到 32 0 g .m- 3 .h- 1 ;生物过滤器对乙酸乙酯去除效果良好 ,去除率在 99%以上 ,乙酸乙酯的总去除量为 4 93g .在过滤去除乙酸乙酯的过程中 ,实验所用填料对高负荷乙酸乙酯的适应性及吸附和降解能力较强 ,p H值较稳定 。This paper deals with the effects of ethyl acetate concentration in the waste air and empty bed retention time on the biofiltration removal efficiency of ethyl acetate. The packing materials in biofilter are compost and perlite. The initial moisture and initial pH of the packing materials are 60%, and pH 6.5 respectively. Through 80 d (960 h) operation under room temperature, the removal efficiency of ethyl acetate can reach above 99% when the load of ethyl acetate in inlet air stream is 8-320 g &middot m-3&middoth-1. Total quantity of ethyl acetate removal is 493 g. During the operation, the compost packing materials have better adaptability and higher capacity of adsorption and removal for ethyl acetate in air stream. And the pH of packing materials is stable and the quantity of microbial cells in packing materials is increased.

关 键 词：乙酸乙酯 生物过滤法 堆肥填料 有机废气处理 吸附能力 降解能力 

分 类 号：X701.7[环境科学与工程—环境工程] X172