期刊文献+

固化污泥的工程性质及微观结构特征 被引量:40

Engineering properties and microstructure feature of solidified sludge
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摘要 通过室内试验,向污泥中添加不同比例的石灰、土和粉煤灰,研究了不同配合比下固化污泥的工程性质。研究发现,采用适当的配合比情况下,固化污泥的强度可以满足填埋的要求,渗透性也有很大提高;采用冷冻干燥技术和扫描电镜研究了固化污泥的微观结构,发现固化后污泥的密实性有较大的提高,这是其强度提高的一个重要原因;应用分形几何的理论,对由扫描电镜获取的固化污泥微观结构图像进行了定量分析,结果表明,分形维数和强度之间有较强的正相关性。 Landfill is a prevalent method for wastewater sludge disposal. Laboratory tests were conducted to study engineering property of sludge solidified by fly ash, lime and silty clay of varied ratios. The experiment results revealed that the strength of solidified sludge was as high as it is required for landfill; and permeability was improved significantly. Using freeze-drying technology and scanning electron microscope (SEM), the microstructure of solidified sludge is studied. It is found that the compactness of sludge was improved after solidification, which is an important reason for strength improvement. Applying theory of fractal geometry, quantitative analysis is carded out on the SEM images. The analysis reveals a considerable positive correlation between fractal dimension and strength.
出处 《岩土力学》 EI CAS CSCD 北大核心 2006年第5期740-744,共5页 Rock and Soil Mechanics
关键词 污泥固化 扫描电镜 污泥 分形维数 sludge solidification SEM sludge fractal dimension
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参考文献12

  • 1Koeing A,Kay J N,Wan I M.Physical properties of dewatered wastewater sludge for landfilling[J].Water Science and Technology,1996,34(3):533-540.
  • 2Knut Wichmann,Andreas Riehl.Mechanical properties of waterwork sludges-shear strength[J].Water Science and Technology,1997,36(11):43-50.
  • 3Stone R J,Ekwue E I,Clarke R O.Engineering properties of sewage sludge in Trinidad[J].Journal of Agricultural Engineering Research,1998,70(2):221 -230.
  • 4Sungjin Lim,Wangi Jeonb,Jaebok Leec,et al.Engineering properties of water/wastewater-treatment sludge modified by hydrated lime,fly ash and loess[J].Water Research,2002,36(17):4 177-4 184.
  • 5Chu J,Lim T T,Goi M H.Potential use of stabilized sewage sludge for land reclamation[J].Journal of the Institution of Engineers,Singapore,2002,42(6):36-42.
  • 6戚海雁,何品晶,章骅.给水厂排泥水及污泥的处置[J].上海环境科学,2002,21(7):442-443. 被引量:32
  • 7姚刚.德国的污泥利用和处置(Ⅱ)(续)[J].城市环境与城市生态,2000,13(2):24-26. 被引量:39
  • 8Mandelbrot B B.The fractal geometry of nature[M].New York:W H Freeman and Company,1983.
  • 9胡瑞林,李向全.分形理论在黄土湿陷性的微结构效应研究中的应用[J].非线性动力学学报,1996,3(4):360-366. 被引量:15
  • 10Moore C A,Donaldson C F.Quantifying soil microstructure using fractals[J].Geotechnique,1995,45(1):105-116.

二级参考文献43

  • 1陈静曦.测定岩石破损分形维的方法[J].岩土力学,1993,14(2):19-23. 被引量:5
  • 2杨更社.凿岩粉尘粒度分布的分形结构[J].阜新矿业学院学报,1994,13(1):118-120. 被引量:2
  • 3罗仁美.印子峪排土场安息角与岩石块度分布规律研究[J].矿冶工程,1995,15(4):16-19. 被引量:11
  • 4颜荣贵,曹文贵,刘文献,曹永权.庙儿沟排土场边坡稳定性研究[J].矿冶工程,1997,17(1):15-19. 被引量:13
  • 5高安秀树 沈步明等(译).分数维[M].北京:地震出版社,1989..
  • 6[1]EPA, .ASCE, AWWA. Technology Transfer Handbook:Management of Water Treatment Plant Residuals.EPA/625/R-95/008, Washington DC, 1996.
  • 7[2]Tsang K F, R L Hurdle. The co-disposal of water and wastewater treatment residuals-feasibility study.In: Proceedings of the AWWA/WPCF Joint Residuals Management Conference, Kansas City, 1991,11~14.
  • 8[3]Terence J McGhee. Water Supply and Sewerage.Sixth edition. USA:Mcgraw-Hill Inc, 1995.
  • 9[1]Xu Y F, Sun D A. Determination on of expansive sofl trength using a fractal model[J ]. Fractals, 2001, 9(1): 51-60.
  • 10[2]Fredlund D G, Xing A, Fredlund M D. The relationship of the unsaturated soil shear strength function to the soil water characteristics[J ]. Can. Geotech. J., 1996,33(3): 440-448.

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