| 剩余污泥氮磷营养盐提取方法研究 |
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| 引用本文： | 孟范平,谢爽,程凤莲.剩余污泥氮磷营养盐提取方法研究[J].环境工程学报,2011,5(1):219-224. |
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| 作者姓名： | 孟范平 谢爽 程凤莲 |
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| 作者单位： | 中国海洋大学环境科学与工程学院,青岛,266100 |
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| 摘 要： | 为提取污泥中的氮磷营养盐,以实现污泥的资源化和减量化,分别采用热碱法、超声波法和加碱超声波法对剩余污泥进行处理.在优化提取工艺条件的基础上,比较了3种方法对污泥中无机氮(IN)和磷酸盐(PO34--P)的提取效果以及污泥减量效果.结果表明,热碱法的适宜提取条件为pH=13、T=100℃、t=9 h;超声波法的适宜提取条...
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| 关 键 词： | 剩余污泥 热碱法 超声法 加碱超声法 |
Study on methods for extracting nitrogen and phosphorus from waste activated sludge |
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| Meng Fanping,Xie Shuang and Cheng Fenglian.Study on methods for extracting nitrogen and phosphorus from waste activated sludge[J].Techniques and Equipment for Environmental Pollution Control,2011,5(1):219-224. |
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| Authors: | Meng Fanping Xie Shuang and Cheng Fenglian |
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| Institution: | College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100,China,College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100,China and College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100,China |
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| Abstract: | In order to extract nitrogen and phosphorus from waste activated sludge(WAS) for enhancing its reclamation and reduction,three kinds of methods,alkaline thermal hydrolysis,ultrasonication and ultrasonic-alkali extraction,were used to treat WAS respectively.On the basis of optimizing the extraction conditions for each method,the extraction rate of inorganic nitrogen(IN) and phosphorus(PO3-4-P) and mass decrement of WAS were compared among three kinds of methods.The results showed that the optimum conditions ... |
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| Keywords: | waste activated sludge(WAS) alkaline thermal hydrolysis ultrasonication ultrasonic-alkali extraction |
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