| 碱热联合处理对剩余污泥干燥特性影响 |
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| 引用本文： | 李洋洋,金宜英,李欢,聂永丰,周岩岩.碱热联合处理对剩余污泥干燥特性影响[J].高校化学工程学报,2011,25(5):877-881. |
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| 作者姓名： | 李洋洋 金宜英 李欢 聂永丰 周岩岩 |
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| 作者单位： | 1. 清华大学环境科学与工程系,北京,100084
2. 清华大学深圳研究生院,广东深圳,518055 |
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| 基金项目： | “十二五”国家科技支撑计划项目(2009BAC64B06) |
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| 摘 要： | 研究了城市污水厂脱水泥饼在不同处理时间、温度、NaOH投加量的条件下进行碱热联合预处理后的干化效果,探讨了干化过程中污泥质量变化规律,并分析了改善干燥的机理、污泥减量效果及脱出液的资源利用方式.结果表明:与未任何处理及仅热处理的污泥相比,达到相同含水率50％时,碱的加入可以加速污泥破解,改善污泥干化性能,干燥效率可以分...
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| 关 键 词： | 污泥 干化 碱热处理 腐殖酸 |
Application of Alkaline Thermal Treatment to Improve Sludge Drying Performance |
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| LI Yang-yang,JIN Yi-ying,LI Huan,NIE Yong-feng,ZHOU Yan-yan.Application of Alkaline Thermal Treatment to Improve Sludge Drying Performance[J].Journal of Chemical Engineering of Chinese Universities,2011,25(5):877-881. |
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| Authors: | LI Yang-yang JIN Yi-ying LI Huan NIE Yong-feng ZHOU Yan-yan |
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| Affiliation: | LI Yang-yang1,JIN Yi-ying1,LI Huan2,NIE Yong-feng1,ZHOU Yan-yan1(1.Department of Environmental Science and Engineering,Tsinghua University,Beijing 100084,China,2.Graduate School at Shenzhen,Shenzhen 518055,China) |
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| Abstract: | An investigation was carried out on the effect of thermal alkaline pretreatment on sludge drying performance.Different parameters,such as the thermal treatment duration,temperature and NaOH dose,were tested to optimize the process of alkaline-thermal pretreatment process of sludge to improve its drying ability.The drying mechanisms and utilizing method of the dewatered effluent was discussed.Results show that,the efficiency of sludge drying after combined alkaline and thermal pretreatment can be increased b... |
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| Keywords: | sludge drying alkaline thermal treatment humic acid |
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