Please wait a minute...
浙江大学学报(工学版)
土木工程     
我国3种典型高岭土的固结、渗透及吸附特性
钟孝乐,詹良通,龚标,曾兴,陈云敏
浙江大学 软弱土与环境土工教育部重点实验室,浙江 杭州 310027
Consolidation permeability and adsorption properties of three kinds of typical kaolin clays in China
ZHONG Xiao-le, ZHAN Liang-tong, GONG Biao, ZENG Xing, CHEN Yun-min
Key Laboratory of Soft Soils and Geoenvironmental Engineering of Ministry of Education, Zhejiang University, Hangzhou 310027, China
 全文: PDF(1384 KB)   HTML
摘要:

为了研究不同类型高岭土的物理、化学及土力学特性,通过压缩固结、渗透及等温吸附试验,确定国内硬质、软质和砂质3种典型高岭土的固结、渗透及吸附特性.试验结果表明:通过压缩固结,硬质、软质高岭土的饱和渗透系数可减小到1×10-7 cm/s,砂质高岭土的渗透、固结系数均比前两者高一个数量级.不同类型的高岭土吸附Pb2+、Cd2+的能力不同,吸附能力由高到低排序为硬质高岭土>软质高岭土>砂质高岭土.3种高岭土对Pb2+的吸附能力均显著高于对Cd2+的吸附,硬质、软质、砂质高岭土对Pb2+的吸附容量分别为6 347.2、3 105.5、2 672.7 mg/kg,对Cd2+的吸附容量分别为691.1、686.4、667.5 mg/kg.综合考虑这3类高岭土的物理、渗透和吸附特性以及制样的方便性,推荐采用软质高岭土作为压实黏土衬垫的实验模拟材料.

Abstract:

To investigatethe-physical, chemical and mechanical properties of different kinds of kaolin clay in China,  consolidation, permeability and isothermal adsorption tests were  carried out on hard, soft and sandy  kaolin clays. The experimental results show that the saturated permeability of the hard and soft kaolin clays can be decreased to 1×10-7 cm/s by consolidating a slurry sample, while the coefficients of permeability and consolidation for the sandy kaolin clay are both one order of magnitude greater than that of hard and soft kaolir clays. The adsorption capacity of Pb2+ and Cd2+ are  different for the three kinds of kaolin clay. The order in the adsorption capacity  is as follows: hard > soft > sandy kaolin clay. The adsorption capacity of Pb2+ is significantly higher than that of Cd2+ for all of the three kinds of kaolin clays. The values of adsorption capacity for Pb2+(Q0) in terms of the Langmuir isotherm for the hard, soft and sandy kaolin clay are measured as 6 347.2 mg/kg, 3 105.5 mg/kg and 2 672.7 mg/kg, respectively, and the corresponding values for Cd2+ are measured as 691.1 mg/kg, 686.4 mg/kg and 667.5 mg/kg,respe ctively. Considering the difference in the physical, permeability and adsorption properties, as well as the ease of sample preparation, it is recommended to use the soft kaolin clay as an experimental material for the model preparation of an compacted clay liners.

出版日期: 2014-11-01
:  TU 411  
基金资助:

国家“863”高技术研究发展计划资助项目(2012AA062601)

通讯作者: 詹良通(1972-),男,教授     E-mail: zhanlt@zju.edu.cn
作者简介: 钟孝乐(1987-),女,硕士生,从事环境岩土工程方面研究.E-mail:xiaole042087@163.com
服务  
把本文推荐给朋友
加入引用管理器
E-mail Alert
RSS
作者相关文章  

引用本文:

钟孝乐,詹良通,龚标,曾兴,陈云敏. 我国3种典型高岭土的固结、渗透及吸附特性[J]. 浙江大学学报(工学版), 10.3785/j.issn.1008-973X.2014.11.006.

ZHONG Xiao-le, ZHAN Liang-tong, GONG Biao, ZENG Xing, CHEN Yun-min. Consolidation permeability and adsorption properties of three kinds of typical kaolin clays in China. JOURNAL OF ZHEJIANG UNIVERSITY (ENGINEERING SCIENCE), 10.3785/j.issn.1008-973X.2014.11.006.

链接本文:

http://www.zjujournals.com/eng/CN/10.3785/j.issn.1008-973X.2014.11.006        http://www.zjujournals.com/eng/CN/Y2014/V48/I11/1947

[1] 卢党军. 我国砂质高岭土资源特点与开发利用现状[J]. 非金属矿, 2009, 32(3): 52-52.
LU Dang-jun. Resource characteristics of arenaceous kaolin in china and its current situation of exploitation and utilization [J]. Non-metallic Mine, 2009, 32(3).: 52-52.
[2] 吴铁轮. 我国高岭土行业现状及发展前景[J]. 非金属矿, 2000, 23(2): 57.
WU Tie-lun. Prensent situation and developing prospect of kaolin trade in china [J]. Non-metallic Mine, 2000, 23(2): 57.
[3] 唐靖炎, 张韬. 中国煤系高岭土加工利用现状与发展[J]. 新材料产业, 2009, 3: 60-63.
TANG Jing-yan, ZHANG Tao. The situation of processing and application of calcined coal measures kaolinite and its develop ment in China [J]. Advanced Materials Industry, 2009, 22(3): 60-63.
[4] 亓春英, 刘星, 周跃飞. 高岭土的综合利用与发展前景[J]. 昆明理工大学学报 :理工版, 2003, 28(2):12.
QI Chun-ying, LIU Xing, ZHOU Yue-fei. Kaolins Comprehensive utilization and developing prospect [J]. Journal of Kunming University of Science and Techology:Science and Techology, 2003, 28(2):12.
[5] COLES C A, YONG R N. Aspects of kaolinite characterization and retention of Pb and Cd [J]. Applied Clay Science, 2002, 22(1): 39-45.
[6] TANG Qiang, TANG Xiao-wu, LI Zhen-ze, et a1.Adsorption and desorption behaviors of Pb(II)on a natural Kaolin:Equilibrium,kinetic and thermodynamic studies [J].Journal of Chemical Technology and Biotechnology,2009,84(9):13711380, SEP 2009.
[7] SHACKELFORD C, DANIEL D. Diffusion in saturated soil. ii: results for compacted clay [J]. Journal of Geotechmical Engineering, ASCE, 1991, 117(3), 485-506.
[8] 李振泽. 土对重金属离子的吸附解吸特性及其迁移修复机制研究[D]. 杭州:浙江大学, 2009:107-129.
LI Zhen-ze.Adsorption and desorption behaviors of heavy metals on soils and the research of their migration- remediation mechanism [D].Hangzhou:Zhejiang University,2009:107-129.
[9] MCKINLEY J D. Centrifuge modelling of the transport of a pulse of two contaminants through a clay layer\[J\]. Geotechnique, 1998. 48(3):421-425.
[10] 国家建筑材料工业局地质公司.中国高岭土矿床地质学[M].上海:上海科学技术文献出版社,1984:39-74.
[11] GB/T 50123-1999. 土工试验方法标准[S]. 北京: 中国计划出版社,1999.
GB/T 50123-1999. Standard for soil test method [S].Beijing: China Planning Press, 1999.
[12] DU Yan-jun, HAYASHI S, HINO T, et a1. Contaminant adsorption characteristics of Kyushu regional soils [J]. Lowland Technology International, 2000, 2(2): 31-41.
[13] HANSEN A M, MAYA P. Adsorption-desorption behavious of Pb and Cd in Lake Chapala, Mexico [J].Environment International , 1997, 23(4): 554-564.
[14] 吴宏海, 刘佩红, 张秋云,等. 高岭石对重金属离子的吸附机理及其溶液的 pH 条件[J]. 高校地质学报, 2005, 11(1): 85-91.
WU Hong-hai, LIU Pei-hong, ZHANG Qiu-yun, et a1.Mechanisms of adsorption of heavy metal ions on kaolinite and their solution as a function of Ph[J]. Geological Journal Of China Universities, 2005, 11(1): 85-91.
[15] HIZAL J, APAK R.  Modeling of cadmium(II) adsorption on kaolinite-based clays in the absence and presence of humic acid [J]. Applied Clay Science,2006,32: 232-244.
[16] DO D D. Adsorption analysis: Equilibrium and kinetics[M].London: Imperial College Press,1998:166-173.
[17] ADEBOWALE K O. The effect of some operating variables on the adsorpsion of lead and cadmium ions on kaolinite clay [J]. Journal of Hazardous Materials, 2006,134(1):130-139.
[18] SRIVASTAVA P, SINGH B, ANGOVE M. Competitive adsorption behavior of heavy metals on kaolinite\[J\]. Journal of Colloid and Interface Science, 2005, 290(1): 28-38.
[19] JIANG Qin-ming, JIN Xiao-ying, LU Xiao-qiao, et al. Adsorption of Pb (II), Cd (II), Ni (II) and Cu (II) onto natural kaolinite clay [J]. Desalination, 2010, 252(1): 33-39.
[20] UNUABONAH E I, ADEBOWALE K O, OLU-OWOLABI B I, et al. Comparison of sorption of Pb 2+ and Cd 2+ on Kaolinite clay and polyvinyl alcohol-modified Kaolinite clay [J]. Adsorption, 2008, 14(6): 791-803.
[21] SHAHMOHASADI-KALALAHG S, BABAZADEH H, NAZEMI A H, et al. Isotherm and kinetic studies on adsorption of Pb, Zn and Cu by kaolinite [J]. Caspian Journal of Environmental Management, 2011, 9(2): 243-255.
[22] WANG Sheng-li, NAN Zhong-ren, CAO Xin-de, et al. Sorption and desorption behavior of lead on a Chinese kaolin[J]. Environmental Earth Sciences, 2011, 63(1): 145-149.

[1] 焦卫国, 詹良通, 兰吉武,陈云敏. 黄土-碎石覆盖层毛细阻滞效应及设计厚度分析[J]. 浙江大学学报(工学版), 2016, 50(11): 2128-2134.
[2] 陈经浩, 黄建新, 陆胜勇, 李晓东, 严建华. 生活垃圾开放式燃烧炭黑的结构及污染物分析[J]. 浙江大学学报(工学版), 2016, 50(10): 1849-1854.
[3] 涂志斌,黄铭枫,楼文娟. 风浪耦合作用下桥塔基础体系的极限荷载效应[J]. 浙江大学学报(工学版), 2016, 50(5): 813-821.
[4] 张如如,赵云,徐文杰,黄博,凌道盛,韩黎明. 温度作用下机场跑道土基中水气运移规律分析[J]. 浙江大学学报(工学版), 2016, 50(5): 822-830.
[5] 曾兴, 詹良通, 钟孝乐, 陈云敏. 低渗透黏土中氯离子弥散作用离心模拟相似性[J]. 浙江大学学报(工学版), 2016, 50(2): 241-249.
[6] 郑健,李育超,陈云敏. 底泥固结对污染物运移影响的超重力离心试验模拟[J]. 浙江大学学报(工学版), 2016, 50(1): 8-15.
[7] 凌道盛,石吉森,张如如,王云岗. Hansbo类有限单元法的非连续分片试验[J]. 浙江大学学报(工学版), 2015, 49(11): 2142-2150.
[8] 徐日庆,徐丽阳,邓祎文,朱亦弘. 基于SEM和IPP测定软黏土接触面积的试验[J]. 浙江大学学报(工学版), 2015, 49(8): 1417-1425.
[9] 李静媛, 赵永志, 郑津洋. 加氢站高压氢气泄漏爆炸事故模拟及分析[J]. 浙江大学学报(工学版), 2015, 49(7): 1389-1394.
[10] 李新亮,李素贞,申永刚. 交通荷载作用下埋地管道应力分析与现场测试[J]. 浙江大学学报(工学版), 2014, 48(11): 1976-1982.
[11] 徐日庆,畅帅,俞元洪,陆建阳. 基于响应面法的杭州海相软土固化强度模型[J]. 浙江大学学报(工学版), 2014, 48(11): 1941-1946.
[12] 李蓓, 田野, 赵若轶, 段安, 李宗津, 马红岩. 聚丙烯酸酯乳液改性砂浆微观结构与改性机理[J]. 浙江大学学报(工学版), 2014, 48(8): 1345-1352.
[13] 涂志斌, 黄铭枫, 楼文娟. 基于Copula函数的建筑动力风荷载相关性组合[J]. 浙江大学学报(工学版), 2014, 48(8): 1370-1375.
[14] 李雪刚,徐日庆,畅帅,廖斌,王兴陈. 响应面法优化有机质软土复合固化剂配方[J]. 浙江大学学报(工学版), 2014, 48(5): 843-849.
[15] 刘长殿, 孙红月, 康剑伟, 杜丽丽. 土体的充气阻渗试验[J]. J4, 2014, 48(2): 236-241.