扎塘赤泥库赤泥颗粒分布特征及迁移规律
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摘要
颗粒的迁移对地下水中污染物的迁移起着重要的作用。本文以扎塘赤泥库为例,通过现场采样和室内实验分析相结合的方法,分析了扎塘赤泥库赤泥颗粒的分布特征及赤泥颗粒的迁移规律。分析结果表明:赤泥为一种级配良好的类黏性土回填物;不同取样深度上,赤泥颗粒的分布特征基本趋于一致,不同粒径范围的赤泥颗粒迁移的规律存在着差异,水动力条件对赤泥颗粒迁移的最大粒径起着决定性的作用。。
Particles transport plays an important role in contaminants transport in groundwater. In this study,the case of red mud pond in Zhatang is taken to analyze the distribution characteristics and transport law of red mud particles by means of combining site sampling and laboratory analysis. The results suggest that red mud is a kind of back-fill material that is similar to clay with well-graded. The distribution characteristics of red mud particles tend to be consistent at different sampling depths. There are differences in the transport law of red mud particles between various particle sizes. Hydrodynamic conditions play a decisive role in the maximum particle size of red mud particles in transport process.
Particles transport plays an important role in contaminants transport in groundwater. In this study,the case of red mud pond in Zhatang is taken to analyze the distribution characteristics and transport law of red mud particles by means of combining site sampling and laboratory analysis. The results suggest that red mud is a kind of back-fill material that is similar to clay with well-graded. The distribution characteristics of red mud particles tend to be consistent at different sampling depths. There are differences in the transport law of red mud particles between various particle sizes. Hydrodynamic conditions play a decisive role in the maximum particle size of red mud particles in transport process.
引文
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Escolero O A,Marin L E,Steinich B,et al.2002.Development of a protection strategy of karst limestone aquifer:the Merida Yucatan,exico case study[J].Water Resources Management,16(5):351-367.
G9ppert N,Goldscheider N.2008.Solute and colloid transport in karst conduits under low-and high-flow conditions[J].Ground Water,46(1):61-68.
Grolimund D,Elimelech M,Borkovec M,et al.1998.Transport of in situ mobilized colloidal particles in packed soil columns[J].Environmental Science and Technology,32(22):3562-3569.
Kilmchouk A.2004.Towards defining,delimiting and classifying epikarst:Its origin,processes and variants of geomorphic evolution[J].Spel Evol Karst Aqui,2(1):1-13.
Kretzschmar R,Borkovec M,Grolimund D,et al.1999.Mobile subsurface colloids and their role in contaminant transport[J].Advances in Agronomy,66:121-193.
Lei H Y,Cui M J,Dai C S,et al.2017.Experimental study of migration of micro particles in porous media[J].Journal of University of Chinese Academy of Sciences,34(2):251-258.
Liu Q S,Cui X Z,Zhang C Y,et al.2014.Effects of particle size on characteristics of transportation and deposition of suspended particles in porous media[J].Chinese Journal of Geotechnical Engineering,36(10):1777-1783.
Mc Dowell-Boyer L M,Hunt J R,Sitar N.1986.Particle transport through porous media[J].Water Resources Research,22(13):1901-1921.
Mei W R.1994.Mechanism study of particulate migration using micromodel experiment[J].Oil Drilling&Production Technology,16(5):66-69,100.
Utsunomiya S,Kersting A B,Ewing R C.2009.Groundwater nanoparticles in the far-field at the Nevada test site:mechanism for radionuclide transport[J].Environmental Science and Technology,43(5):1293-1298.
Xie Z L,Sun Y C,Zhang M,et al.2016.Distribution characteristics and source identification of polycyclic aromatic hydrocarbons,fatty acids in water of karst underground river[J].Environmental Science,37(7):2547-2555.
Yang P S,Kuang Y L,Yuan W H,et al.2009.Substances transport in an underground river of typical karst watershed during storm events[J].Environmental Science,30(11):3249-3255.
Yang P S,Liu Z Q,Huo Q F.2012.Transportation and sources of the suspended particle in a karst spring during a storm event[J].Environmental Science,33(10):3376-3381.
杜丽娜.2014.多孔介质中土壤颗粒运移的试验研究[D].杨凌:西北农林科技大学.
雷海燕,崔明杰,戴传山,等.2017.微小颗粒在多孔介质中运移的实验研究[J].中国科学院大学学报,34(2):251-258.
刘泉声,崔先泽,张程远,等.2014.粒径对多孔介质中悬浮颗粒迁移-沉积特性的影响[J].岩土工程学报,36(10):1777-1783.
梅文荣.1994.用微模型实验研究颗粒运移机理[J].石油钻采工艺,16(5):66-69,100.
谢正兰,孙玉川,张媚,等.2016.岩溶地下河水中多环芳烃、脂肪酸分布特征及来源分析[J].环境科学,37(7):2547-2555.
杨平恒,旷颖仑,袁文昊,等.2009.降雨条件下典型岩溶流域地下水中的物质运移[J].环境科学,39(11):3249-3255.
杨平恒,刘子琦,贺秋芳.2012.降雨条件下岩溶泉水中悬浮颗粒物的运移特征及来源分析[J].环境科学,33(10):3376-3381.