气液相组合生物法净化低浓度甲醛废气研究  

Bio-purification of formaldehyde waste gas in low concentration by using a gas-liquide phase combined bio-purification method

作　　者：孙珮石[1] 李晓梅[2] 孙悦[3] 费丽[4] 王洁[1] 

机构地区：[1]云南大学环境与湖泊研究院,昆明650091 [2]云南师范大学化学化工学院,昆明650092 [3]北京大学数学科学学院,北京100871 [4]昆明理工大学环境科学与工程学院,昆明650093

出　　处：《环境工程学报》2007年第5期69-73,共5页Chinese Journal of Environmental Engineering

基　　金：国家"863"高技术研究发展计划资助项目(2002AA649050);国家自然科学基金资助项目(50478116);云南省重点科技匹配项目(2004GP05);云南省新材料制备与加工重点实验室协作项目(20030010)

摘　　要：对生物膜填料塔+液相生物处理的组合系统净化低浓度甲醛废气进行实验研究,结果表明,组合系统对甲醛废气的净化效果明显优于单独生物膜填料塔净化系统,甲醛净化效率提高35%以上,甲醛生化去除量增大50%以上。动力学研究结果表明,甲醛在生物膜上的生化降解反应为慢速生化反应,需要采取强化甲醛液相生化降解反应、提高反应速率的措施,来提高废气中甲醛的生物净化效果。An experimental study on the combined system of biofilm-packing tower ＋ bio-treatment in liquid- phase for bio-purifying formaldehyde waste gas was performed. The results showed that effect of the combined system to bio-purify formaldehyde waste gas exceeded obviously that of the alone biofilm-packing tower system. The purification efficiency and bio-elimination capacity of formaldehyde were enhanced more than 35% and 50% respectively. The result of kinetic study indicated that the bio-degradation reaction of formaldehyde in the biofilm was a slow-rate bio-chemical reaction. In order to enhance the bio-purification effect of formaldehyde in waste gas, some measures, those could intensify the bio-degradation reaction of formaldehyde and increase biochemical reaction rate, should be adopted.

关 键 词：甲醛废气 组合生物净化法 动力学研究 

分 类 号：X701[环境科学与工程—环境工程]