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| 不同表观气速对好氧颗粒污泥净化苯酚废气的影响 | |
| 引用本文： | 曾萍,宋永会,刘风华,都基峻,赵立国,宋存义.不同表观气速对好氧颗粒污泥净化苯酚废气的影响[J].环境科学学报,2011,31(5):964-970. |
| 作者姓名： | 曾萍 宋永会 刘风华 都基峻 赵立国 宋存义 |
| 作者单位： | 1. 中国环境科学研究院,城市水环境研究室,北京,100012 2. 中国环境科学研究院,城市水环境研究室,北京,100012;北京科技大学,土木与环境工程学院,北京,100083 3. 北京科技大学,土木与环境工程学院,北京,100083 |
| 摘 要： | 实验设置了0.7、1.2、2.0、2.5和3.0 cm·s-1 5个不同表观气速,考察其对好氧颗粒污泥净化苯酚废气的影响.研究发现当表观气速在0.7～3.0 cm·s-1之间时,好氧颗粒污泥表现出良好的稳定性,苯酚去除率达到95%以上.随着表观气速的提高好氧颗粒污泥各项理化指标均有不同程度的改善,胞外多聚物(extra... |
| 关 键 词： | 表观气速 好氧颗粒污泥 苯酚废气 胞外多聚物 |
| 收稿时间： | 2010/8/16 0:00:00 |
| 修稿时间： | 9/17/2010 4:09:05 PM |
The effects of superficial gas velocity on the phenol waste gas degradation by aerobic granules |
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| ZENG Ping,SONG Yonghui,LIU Fenghu,DU Jijun,ZHAO Liguo and SONG Cunyi.The effects of superficial gas velocity on the phenol waste gas degradation by aerobic granules[J].Acta Scientiae Circumstantiae,2011,31(5):964-970. | |
| Authors: | ZENG Ping SONG Yonghui LIU Fenghu DU Jijun ZHAO Liguo and SONG Cunyi |
| Institution: | Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012,Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012,1. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012; 2. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083,Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012,1. Department of Urban Water Environmental Research, Chinese Research Academy of Environmental Sciences, Beijing 100012; 2. School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083 and School of Civil and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083 |
| Abstract: | The effects of superficial gas velocity on the phenol waste gas degradation by aerobic granules were studied. The results showed that aerobic granules performed stably and effectively with the phenol removal rates over 95% when the superficial gas velocities changed from 0.7 to 3.0 cm s-1. With the increasing of superficial gas velocities, the physical and chemical characteristics of aerobic granules were improved including the increasing of extracellular polymeric substances (EPS) amount, hydrophobicity and PS/PN, which resulted in the stable operation of aerobic granules. The simulation of the phenol waste gas degradation by aerobic granules indicated that the highest specific phenol degradation rate was 19.46 mg-phenol g-1-VSS min-1 when superficial gas velocity was 2.5 cm s-1. |
| Keywords: | Superficial gas velocity aerobic granules phenol waste gas extracellular polymeric substrate |
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