| 好氧颗粒污泥常温异位湿式储存及其物质迁移转化机理研究 |
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| 引用本文： | 张立楠,宣鑫鹏,廖超,程媛媛,龙焙. 好氧颗粒污泥常温异位湿式储存及其物质迁移转化机理研究[J]. 环境污染与防治, 2019, 41(4): 412-415 |
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| 作者姓名： | 张立楠 宣鑫鹏 廖超 程媛媛 龙焙 |
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| 作者单位： | 江西理工大学建筑与测绘工程学院 ,江西 赣州,341000;江西理工大学建筑与测绘工程学院 ,江西 赣州,341000;江西理工大学建筑与测绘工程学院 ,江西 赣州,341000;江西理工大学建筑与测绘工程学院 ,江西 赣州,341000;江西理工大学建筑与测绘工程学院 ,江西 赣州,341000 |
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| 基金项目： | 江西省教育厅科技项目;江西省自然科学基金青年基金资助项目 |
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| 摘 要： | 研究了好氧颗粒污泥(AGS)常温异位湿式储存过程中泥相与水相之间的物质迁移转化规律,为阐释AGS稳定性下降提供机理解释。储存过程为厌氧环境,AGS的颜色由淡黄色逐渐变黑,结构由致密逐渐变松散。通过扫描电子显微镜观察到,储存31d后颗粒表面皱缩,局部出现裂痕。AGS与水相之间存在明显的物质迁移转化过程,主要表现在兼氧菌、厌氧菌逐渐代替好氧菌,AGS的胞外聚合物(EPS)下降,不能支撑AGS的基本骨架,导致AGS的稳定性下降。
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| 关 键 词： | 好氧颗粒污泥 常温异位湿式储存 稳定性 迁移转化 |
Study on ex-situ wet storage of room temperature and material migration and transformation mechanism of aerobic granular sludge |
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| ZHANG Linan,XUAN Xinpeng,LIAO Chao,CHENG Yuanyuan,LONG Bei. Study on ex-situ wet storage of room temperature and material migration and transformation mechanism of aerobic granular sludge[J]. Environmental Pollution & Control, 2019, 41(4): 412-415 |
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| Authors: | ZHANG Linan XUAN Xinpeng LIAO Chao CHENG Yuanyuan LONG Bei |
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| Affiliation: | (School of Architectural and Surveying & Mapping Engineering,Jiangxi University of Science and Technology,Ganzhou Jiangxi 341000) |
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| Abstract: | The law of material migration and transformation between the mud phase and water phase of aerobic granular sludge(AGS)during ex-situ wet storage of room temperature was studied,which provided a theoretical basis for explaining the mechanism of AGS stability decline.The environment was anaerobic during storage,leading to that color of the AGS turned black from light yellow,and that the structure changed from dense to loose.It was observed by scanning electron microscope(SEM)that the surface of the AGS was shrunk and there appeared local cracks after 31 d storage.There existed significant material migration and transformation between two phases during storage.This was due to anaerobes and facultative anaerobes replaced aerobes,leading to extracellular polymeric substances(EPS)declined so as not to support AGS structure.Therefore,stability of AGS declined. |
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| Keywords: | aerobic granular sludge ex-situ wet storage of room temperature stability migration and transformation |
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