| 好氧颗粒污泥降解苯酚 |
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| 引用本文： | 刘国洋,赵白航,李军,王昌稳,李佟.好氧颗粒污泥降解苯酚[J].环境工程学报,2014,8(9):3645-3650. |
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| 作者姓名： | 刘国洋 赵白航 李军 王昌稳 李佟 |
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| 作者单位： | 1. 北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室, 北京 100124;1. 北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室, 北京 100124;1. 北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室, 北京 100124;1. 北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室, 北京 100124;1. 北京工业大学建筑工程学院北京市水质科学与水环境恢复工程重点实验室, 北京 100124;2. 北京城市排水集团有限公司, 北京 100176 |
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| 基金项目： | 国家自然科学基金资助项目（51078008）；北京市自然科学基金资助项目（8092007） |
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| 摘 要： | 以人工配水启动SBR,逐步提高进水苯酚浓度,探究好氧颗粒污泥对苯酚的降解能力,同时分析苯酚对好氧颗粒污泥特性的影响。经过55 d的运行,进水苯酚浓度逐渐增到3 000 mg/L,苯酚、COD及NH+4-N去除率分别达到了98.33%、97.27%和57.58%,好氧颗粒污泥表现出对苯酚的良好的去除能力。扫描电镜照片显示投加苯酚后的颗粒污泥表面更加光滑,结构更为紧凑。胞外聚合物红外光谱分析表明投加苯酚前后好氧颗粒污泥EPS的主要组分没有明显改变。苯酚毒性刺激了颗粒污泥分泌更多胞外聚合物,胞外聚合物中多糖含量由初始的12.70 mg/g VSS增加到35.17 mg/g VSS,蛋白含量由4.93 mg/g VSS增加到8.01 mg/g VSS。投加苯酚后的污泥粒径明显增大,主要污泥粒径由0.5~2.0 mm增大到2.0 mm以上。
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| 关 键 词： | 好氧颗粒污泥 苯酚 胞外聚合物 污泥特性 |
| 收稿时间： | 8/3/2013 12:00:00 AM |
| 修稿时间： | 9/4/2013 12:00:00 AM |
Phenol degradation by aerobic granular sludge |
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| Liu Guoyang,Zhao Baihang,Li Jun,Wang Changwen and Li Tong.Phenol degradation by aerobic granular sludge[J].Techniques and Equipment for Environmental Pollution Control,2014,8(9):3645-3650. |
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| Authors: | Liu Guoyang Zhao Baihang Li Jun Wang Changwen and Li Tong |
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| Institution: | 1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;1. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, College of Architecture and Civil Engineering, Beijing University of Technology, Beijing 100124, China;2. Beijing Drainage Group Co. Ltd., Beijing 100176, China |
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| Abstract: | The SBR started up with synthetic water,the ability to degrade phenol by aerobic granular sludge and the effect of phenol on aerobic granular sludge characteristics were investigated by increasing the influent phenol concentration gradually. After 55 days of operation, the influent phenol concentration reached 3 000 mg/L, while removal efficiencies of phenol,COD and NH4+-N were 98.33%,97.27% and 57.58%, respectively and aerobic granular sludge showed an excellent phenol removal ability. The scanning electron microscope image illustrated the granular sludge surface becomes more smoother and the granular has a more compact structure after adding phenol. The infrared spectrum analysis of extracecellular polymers (EPS) showed that the components of EPS have no obvious change after adding phenol.The phenol toxicity stimulated the granular sludge to secrete more EPS, the polysaccharide in EPS increased from 12.70 mg/g VSS to 35.17 mg/g VSS while the protein in EPS increased from 4.93 mg/g VSS to 8.01 mg/g VSS. Sludge particle size increased significantly for the phenol addition, the main particle size increased from 0.5~2.0 mm to above 2.0 mm. |
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| Keywords: | aerobic granular sludge phenol extracellular polymeric substances sludge characterisitics |
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