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| 高浓度甲醛废气的生物法处理实验研究 | |
| 引用本文： | 乔莉,李晓梅,孙珮石,王洁,杨常亮.高浓度甲醛废气的生物法处理实验研究[J].云南大学学报(自然科学版),2009,31(1):80-83. |
| 作者姓名： | 乔莉 李晓梅 孙珮石 王洁 杨常亮 |
| 作者单位： | 1. 云南大学, 环境与湖泊学院, 云南 昆明, 650091; 2. 昆明理工大学, 云南 昆明, 650093; 3. 云南大学, 生命科学学院, 云南 昆明, 650091; 4. 云南师范大学, 化学化工学院, 云南 昆明, 650092 |
| 摘 要： | 以轻质陶块为填料,探讨了生物膜填料塔净化处理高浓度甲醛的生物降解性能及操作条件改变对净化效果的影响.实验结果表明:废气中甲醛质量浓度在50～220 mg/m3范围时,生物膜填料塔对甲醛具有较强的降解能力,净化效率均在93%以上;当甲醛进口质量浓度为200 mg/m3左右时达到塔内生物膜中微生物群体对甲醛废气的最大生化降解能力.操作条件的改变对甲醛废气的净化效果有一定影响,实验生物膜填料塔在气体流量200 L/h,循环液流量20 L/h时有最佳净化性能. |
| 关 键 词： | 生物膜填料塔 甲醛废气 生物降解 净化效率 生化去除量 |
| 收稿时间： | 2008-7-1 |
Biodegradation of formaldehyde at high concentration in waste gases |
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| QIAO li,LI Xiao-mei,SUN Pei-shi,WANG jie.Biodegradation of formaldehyde at high concentration in waste gases[J].Journal of Yunnan University(Natural Sciences),2009,31(1):80-83. | |
| Authors: | QIAO li LI Xiao-mei SUN Pei-shi WANG jie |
| Institution: | 1. Institute of Environment and Lakes, Yunnan University, Kunming 650091, China; 2. Department of Chemistry, Yunnan Normal University, Kunming 650091, China; 3. Department of Life Science, Yunnan University, Kunming 650091, China; 4. Faculty of Chemistry and Chemical Engineering, Yunnan Normal University, Kunming 650092, China |
| Abstract: | The biodegradation of waste gases containing formaldehyde at high concentration and the influence of operation conditions on the efficiency were studied with a biotrickling filter using light caramic cake as filter material.The experimental results indicated that the biotrickling filter had higher formaldehyde removing ability and that the removal efficiency could be over 93% while the concentration of formaldehyde was between 50 to 220mg/m3,and the maximal biodegradation was obtained when the concentration was about 200mg/m3.Other optimized parameters were gas flow at 200L/h and the liquid flow at 20L/h. |
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