土石混合介质中非反应性阴离子运移试验研究

王慧芳; 邵明安

高级搜索

全国中文核心期刊
中国科技核心期刊
美国工程索引（EI）收录期刊

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

土石混合介质中非反应性阴离子运移试验研究

王慧芳, 邵明安

文章导航 > 水科学进展 > 2007 > 18(2): 164-169

王慧芳, 邵明安. 土石混合介质中非反应性阴离子运移试验研究[J]. 水科学进展, 2007, 18(2): 164-169.

引用本文:

王慧芳, 邵明安. 土石混合介质中非反应性阴离子运移试验研究[J]. 水科学进展, 2007, 18(2): 164-169.

WANG Hui-fang, SHAO Ming-an. Experimental study of non-reactive anion transport in the soil-stone mixture[J]. Advances in Water Science, 2007, 18(2): 164-169.

Citation:

WANG Hui-fang, SHAO Ming-an. Experimental study of non-reactive anion transport in the soil-stone mixture[J]. Advances in Water Science, 2007, 18(2): 164-169.

土石混合介质中非反应性阴离子运移试验研究

王慧芳^1,2,3,
邵明安^1,2,

1.
中国科学院水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西, 杨凌, 712100;
2.
水利部水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西, 杨凌, 712100;
3.
西北农林科技大学水土保持研究所, 陕西, 杨凌, 712100

基金项目: 国家自然科学基金资助项目(50479063;90502006);中国科学院百人计划资助项目;西北农林科技大学“创新团队”计划资助项目

详细信息

作者简介:
王慧芳(1979- ),女,内蒙古海拉尔人,博士研究生,主要从事土壤水动力学、水资源利用等研究.E-mail:ylwhf2004@tom.com

通讯作者:
邵明安,E-mail:mashao@ms1iswc.ac.cn

中图分类号: P641.2

Experimental study of non-reactive anion transport in the soil-stone mixture

WANG Hui-fang^1,2,3,
SHAO Ming-an^{1,2
,}

1.
State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China;
2.
Institute of Soil and Water Conservation, Northwest A & F University, Yangling 712100, China;
3.
Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Funds: The study is financially supported by the National Natural Science Foundation of China(50479063,90502006),and the "One Hundred TalentsProgram" of Chinese Academy of Sciences.

摘要: 为探讨化学物质在土石混合介质中的运移过程和机理,采用饱和稳态流下的Cl^-1混合置换试验,测定水流和溶质运移过程,分析土石混合介质的溶质穿透曲线特征及碎石组成和含量对运移过程的影响。选用CXTFIT2.1的平衡和物理非平衡对流弥散模型,对参数弥散系数D和滞留因子R进行反求。结果显示:不同土石比的D变异较大:0.258~22.31 cm²/h。R的波动范围为0.6~1.54;碎石含量影响土石介质的溶质运移过程表现为平均孔隙流速、弥散系数、弥散度均与土石比成负指数的幂函数关系。对碎石粒径与溶质运移参数进行相关分析发现,小粒径的碎石含量增加,则孔隙流速和弥散系数有减少的趋势,而大于10 mm的碎石有利于溶质的运移。通过土石介质的非反应性阴离子的混合置换试验研究,可以为非均一介质中化学物质运移提供参考。
- 碎石 /
- 溶质运移 /
- 弥散度 /
- 土石比 /
- 非反应性阴离子
Abstract: To make known the process and the mechanism of the chemical transport in the soil-stone mixture,we measured the process of the water and solute transport,based on the displacement experiments using Cl^- during the saturated and steady flow in the soil containing rock fragments,and stuied the effect of different content and constitutes of rock fragments on the breakthrough curves of the solute. The parameters(D,R)of classic CDE were fitted to the measured BTCs using CXTFIT211 at the given pore velocities. The results show that:D values varied from 0.258 cm²·h^-1 to 22.31 cm²·h^-1,and R values from 0.6 to 1.54.The relations between the soil-stone ratios and the averaged pore velocities,the dispersion coefficients and the dispersivitis all fit the power functions repeatedly. After correlate analyses,the effect of size and constitutes of rock frag-ments on the parameters is expressed in the content of rock fragment. When the content of rock fragments smaller than 5mm increases,the pore velocity and the D have decreasing trend;while the rock fragments bigger than 10mm in diameter are favorable to the solute transport. The result of transport of the non-reactive anion in this paper may provide important data and be useful for better understanding of the solute transport in the heterogeneous porous media.
- rock fragments /
- solute transport /
- dispersivity /
- soil-stone ratio /
- non-reactive anion

[1]	吕国安,陈明亮,王春潮,等.丹江口库区石渣土土壤水分特性研究[J].华中农业大学学报,2000,19(4):342-345.
[2]	王东海,李广贺,贾道昌,等.石油类污染物在砂砾石层中的迁移与分布[J].环境科学,1998,19(5):18-21.
[3]	Russo D.Leaching characteristics of a stony desert soil[J].Soil Sic Soc Am J,1983,47:431-438.
[4]	Rao P S C,Rolston D E,et al.Solute transport in aggregated porous media.Theoretical and experimental evaluation[J].Soil Sic Soc Am J,1980,44:1 139-1 146.
[5]	Nkedi-Kizza P,Biggar J W,et al.Modeling tritium and chloride 36 transport through an aggregated oxisol[J].Water Resour Res 1983,19:691-700.
[6]	Bouwer H,Rice R C.Hydraulic properties of stony vadose zones[J].Groundwater 1984,22:696-705.
[7]	Schulin R,Wierenga P J,et al.Solute transport through a stony soil[J].Soil Sci Soc Am J,1987,51:36-42.
[8]	Buchter B,Hinz C,et al.Cadmium Transport in an unsaturated stony sub soil monolith[J].Soil Sci Soc Am J,1996,60:716-721.
[9]	王慧芳,邵明安.含碎石土壤水分入渗试验研究[J].水科学进展,2006,17(5):604-609.
[10]	Lapidus L,Amundson N R.Mathematics of adsorption in beds[J].J Phys Chem,1952,56:584.
[11]	Van Genuchten M Th,Wagenet R J.Two-site/two-region models for pesticide transport and degradation:theoretical development and analytical solutions[J].Soil Sci Soc Am J,1989,53:1 303-1 310.
[12]	Motyka J.A conceptual model of hydraulic networks in carbonate rocks,illustrated by examples from Poland[J].Hydrogeology Journal 2003,67:449-457.
[13]	Shukla M K,Ellsuoreh T R,et al.Effect of water flux on solute velocity and dispersion[J].Soil Sci Soc Am J,2003,67:449-457.129.
[14]	李韵株,李保国.土壤溶质运移[M].北京:科学出版社,1998.

[1]	罗明明, 季怀松. 岩溶管道与裂隙介质间溶质暂态存储机制 . 水科学进展, 2022, 33(1): 145-152. doi: 10.14042/j.cnki.32.1309.2022.01.014
[2]	刘小丽, 刘明珠. 波浪作用下考虑海床变形影响的溶质运移数值模拟 . 水科学进展, 2021, 32(1): 88-96. doi: 10.14042/j.cnki.32.1309.2021.01.009
[3]	叶逾, 张宇, 蔡芳敏, 谢一凡, 鲁春辉. 宏观各向异性多孔介质中流体变形及溶质运移 . 水科学进展, 2021, 32(6): 903-910. doi: 10.14042/j.cnki.32.1309.2021.06.009
[4]	周鸿翔, 郑延丰, 吴劳生, 陈铖, 曾令藻. 孔隙尺度多孔介质流体流动与溶质运移高性能模拟 . 水科学进展, 2020, 31(3): 422-432. doi: 10.14042/j.cnki.32.1309.2020.03.012
[5]	施小清, 吴吉春, 吴剑锋, 姜蓓蕾, 徐红霞. 多个相关随机参数的空间变异性对溶质运移的影响 . 水科学进展, 2012, 23(4): 509-515. doi: CNKI:32.1309.P.20120614.2158.001
[6]	章少辉, 许迪, 李益农, 白美健. 一维畦灌施肥地表水流与溶质运移耦合模型——Ⅰ.模型建立 . 水科学进展, 2011, 22(2): 189-195.
[7]	辛沛, 金光球, 李凌. 潮汐作用下盐沼孔隙水流动及溶质运移模拟 . 水科学进展, 2009, 20(3): 379-384.
[8]	陆乐, 吴吉春, 王晶晶. 多尺度非均质多孔介质中溶质运移的蒙特卡罗模拟 . 水科学进展, 2008, 19(3): 333-338.
[9]	张丛志, 张佳宝, 徐绍辉, 张辉. 反应性溶质在不同质地饱和土柱中运移的数值模拟 . 水科学进展, 2008, 19(4): 552-558.
[10]	熊云武, 黄冠华, 黄权中. 非均质土柱中溶质迁移的连续时间随机游走模拟 . 水科学进展, 2006, 17(6): 797-802.
[11]	王慧芳, 邵明安. 含碎石土壤水分入渗试验研究 . 水科学进展, 2006, 17(5): 604-609.
[12]	李云开, 杨培岭, 任树梅, 罗远培. 土壤水分与溶质运移机制的分形理论研究进展 . 水科学进展, 2005, 16(6): 892-899.
[13]	程诚, 吴吉春, 葛锐, 叶明. 单裂隙介质中的溶质运移研究综述 . 水科学进展, 2003, 14(4): 502-508.
[14]	张德生, 沈冰, 沈晋, 王全九. 非均匀土壤中溶质运移的两区模型及其解析解 . 水科学进展, 2003, 14(1): 72-78.
[15]	王锦国, 周志芳. 裂隙岩体地下水溶质运移的尺度问题 . 水科学进展, 2002, 13(2): 239-245.
[16]	任理, 王济, 秦耀东. 非均质土壤饱和稳定流中盐分运移的传递函数模拟 . 水科学进展, 2000, 11(4): 392-400.
[17]	杨金忠, 蔡树英, 叶自桐. 区域地下水溶质运移随机理论的研究与进展 . 水科学进展, 1998, 9(1): 84-98.
[18]	任理, 李春友, 李韵珠. 粘性土壤溶质运移新模型的应用 . 水科学进展, 1997, 8(4): 321-328.
[19]	杨金忠, 叶自桐. 野外非饱和土壤水流运动速度的空间变异性及其对溶质运移的影响 . 水科学进展, 1994, 5(1): 9-17.
[20]	杨金忠, 叶自桐, 贾维钊, 阎世龙. 野外非饱和土壤中溶质运移的试验研究 . 水科学进展, 1993, 4(4): 245-252.

点击查看大图

计量

文章访问数: 78
HTML全文浏览量: 23
PDF下载量: 429
被引次数: 0

土石混合介质中非反应性阴离子运移试验研究

王慧芳^1,2,3,
邵明安^1,2,

1. 中国科学院水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西, 杨凌, 712100;

2. 水利部水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西, 杨凌, 712100;

3. 西北农林科技大学水土保持研究所, 陕西, 杨凌, 712100

基金项目: 国家自然科学基金资助项目(50479063;90502006);中国科学院百人计划资助项目;西北农林科技大学“创新团队”计划资助项目

作者简介:
王慧芳(1979- ),女,内蒙古海拉尔人,博士研究生,主要从事土壤水动力学、水资源利用等研究.E-mail:ylwhf2004@tom.com

通讯作者: 邵明安,E-mail:mashao@ms1iswc.ac.cn

收稿日期: 2005-10-11
修回日期: 2006-05-24
刊出日期: 2007-03-25

中图分类号: P641.2

关键词:

碎石 /

溶质运移 /

弥散度 /

土石比 /

非反应性阴离子

摘要: 为探讨化学物质在土石混合介质中的运移过程和机理,采用饱和稳态流下的Cl^-1混合置换试验,测定水流和溶质运移过程,分析土石混合介质的溶质穿透曲线特征及碎石组成和含量对运移过程的影响。选用CXTFIT2.1的平衡和物理非平衡对流弥散模型,对参数弥散系数D和滞留因子R进行反求。结果显示:不同土石比的D变异较大:0.258~22.31 cm²/h。R的波动范围为0.6~1.54;碎石含量影响土石介质的溶质运移过程表现为平均孔隙流速、弥散系数、弥散度均与土石比成负指数的幂函数关系。对碎石粒径与溶质运移参数进行相关分析发现,小粒径的碎石含量增加,则孔隙流速和弥散系数有减少的趋势,而大于10 mm的碎石有利于溶质的运移。通过土石介质的非反应性阴离子的混合置换试验研究,可以为非均一介质中化学物质运移提供参考。

English Abstract

Experimental study of non-reactive anion transport in the soil-stone mixture

WANG Hui-fang^1,2,3,
SHAO Ming-an^1,2,

1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China;

2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling 712100, China;

3. Graduate School of Chinese Academy of Sciences, Beijing 100039, China

Funds: The study is financially supported by the National Natural Science Foundation of China(50479063,90502006),and the "One Hundred TalentsProgram" of Chinese Academy of Sciences.

Received Date: 2005-10-11
Rev Recd Date: 2006-05-24
Publish Date: 2007-03-25

Keywords:

Abstract: To make known the process and the mechanism of the chemical transport in the soil-stone mixture,we measured the process of the water and solute transport,based on the displacement experiments using Cl^- during the saturated and steady flow in the soil containing rock fragments,and stuied the effect of different content and constitutes of rock fragments on the breakthrough curves of the solute. The parameters(D,R)of classic CDE were fitted to the measured BTCs using CXTFIT211 at the given pore velocities. The results show that:D values varied from 0.258 cm²·h^-1 to 22.31 cm²·h^-1,and R values from 0.6 to 1.54.The relations between the soil-stone ratios and the averaged pore velocities,the dispersion coefficients and the dispersivitis all fit the power functions repeatedly. After correlate analyses,the effect of size and constitutes of rock frag-ments on the parameters is expressed in the content of rock fragment. When the content of rock fragments smaller than 5mm increases,the pore velocity and the D have decreasing trend;while the rock fragments bigger than 10mm in diameter are favorable to the solute transport. The result of transport of the non-reactive anion in this paper may provide important data and be useful for better understanding of the solute transport in the heterogeneous porous media.

王慧芳, 邵明安. 土石混合介质中非反应性阴离子运移试验研究[J]. 水科学进展, 2007, 18(2): 164-169.

引用本文:

王慧芳, 邵明安. 土石混合介质中非反应性阴离子运移试验研究[J]. 水科学进展, 2007, 18(2): 164-169.

WANG Hui-fang, SHAO Ming-an. Experimental study of non-reactive anion transport in the soil-stone mixture[J]. Advances in Water Science, 2007, 18(2): 164-169.

Citation:

WANG Hui-fang, SHAO Ming-an. Experimental study of non-reactive anion transport in the soil-stone mixture[J]. Advances in Water Science, 2007, 18(2): 164-169.