›› 2005, Vol. 26 ›› Issue (8): 1269-1272.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Study on sorption of Zn2+ by fly ash, clay and bentonite

XI Yong-hui, ZHAO Hong, HU Zhong-xiong   

  1. Tongji University, Shanghai 200092, China
  • Received:2004-03-08 Online:2005-08-10 Published:2013-12-26

PDF (PC)

1260

Abstract: Sorption of Zn2+ from aqueous solutions by fly ash, clay and bentonite was investigated. The results of kinetic experiments showed that the sorption process of Zn2+ was rapid. The sorption data showed that sorption capacity of Zn2+ by fly ash and bentonite was much larger than those by clay and silty clay; and the sorption capacity of Zn2+ by fly ash was equal to that by bentonite. Equilibrium modeling of sorption showed that at high concentration，the sorption of Zn2+ by fly ash, clay and silty clay were fitted to a Langmuir isotherm. The results also showed that when Zn2+ loading in adsorbents increased，the percentage of Zn2+ sorption by adsorbents such as fly ash decreased.

Key words: fly ash, Zn2+, sorption, isotherm

CLC Number: 

  • TU 411.1
  • Please send e-mail to pingzhou3@126.com if you would like to read full paper in English for free. Parts of our published papers have English translations.
[1] TIAN Jun, LU Gao-ming, FENG Xia-ting, LI Yuan-hui, ZHANG Xi-wei. Experimental study of the microwave sensitivity of main rock-forming minerals [J]. Rock and Soil Mechanics, 2019, 40(6): 2066-2074.
[2] WANG Dong-xing, XIAO Jie, XIAO Heng-lin, MA Qiang, . Experimental study of carbonated-solidified sludge in East Lake, Wuhan [J]. Rock and Soil Mechanics, 2019, 40(5): 1805-1812.
[3] XU Bao-tian, ZHANG Li-ping, YAN Xiao-ying, QIU De-jun, . Effect of void characteristics on deteriorating rules of sandstone due to water [J]. Rock and Soil Mechanics, 2019, 40(2): 561-569.
[4] WEI Jiu-qi, LÜ Ya-ru, LIU Guo-quan, ZHANG Lei, LI Lei , . One-dimensional impact responses and energy absorption of calcareous sand [J]. Rock and Soil Mechanics, 2019, 40(1): 191-198.
[5] WANG Wei, FANG Zhi-ming, LI Xiao-chun,. Experimental and model analysis of permeability of coal sample from Qinshui basin under hydrostatic pressure conditions [J]. , 2018, 39(S1): 251-257.
[6] HUANG Sheng-gen, LIU Dong-jun, HU Yong-jian，. Simulation analysis and application study of electromagnetic wave computed tomography in detecting karst caves [J]. , 2018, 39(S1): 544-550.
[7] CHEN Fan, WU Jian-xun, REN Song, OUYANG Xun, WANG Liang, FAN Jin-yang,. The swelling tests of anhydrite based on the humidity stress field theory [J]. , 2018, 39(8): 2723-2731.
[8] XU Xiao, ZHAO Cheng-gang, CAI Guo-qing，. Shear strength of unsaturated soils considering capillary and adsorptive mechanisms [J]. , 2018, 39(6): 2059-2064.
[9] LIU Li-yuan, ZHU Wan-cheng, WEI Chen-hui, MA Xiao-hui. Mechanical model and numerical analysis of mechanical property alterations of coal induced by gas adsorption [J]. , 2018, 39(4): 1500-1508.
[10] QI Xian-yin, LI Jia-zhuo, WANG Wei,. An anisotropic permeability model of coal containing methane based on different directional modulus reduction ratios [J]. , 2018, 39(2): 635-643.
[11] MA Qin-yong, GAO Chang-hui，. Energy absorption and fractal characteristics of basalt fiber-reinforced cement- soil under impact loads [J]. , 2018, 39(11): 3921-3928.
[12] RONG Teng-long, ZHOU Hong-wei, WANG Lu-jun, REN Wei-guang, GUO Yi-bao，. A damage-based permeability models of deep coal under mining disturbance [J]. , 2018, 39(11): 3983-3992.
[13] TANG Ju-peng, TIAN Hu-nan, YU Ning, DING Jia-hui. Experimental study of influence of gas pressure on coal shale gas adsorption characteristics based on nuclear magnetic resonance spectrum [J]. , 2016, 37(S2): 203-208.
[14] LIU Xin-rong, WANG Zi-juan, FU Yan, YUAN Wen, DEN Zhi-yun, . Research on nondestructive testing parameters’ scale effect of sandstone of different moisture contents [J]. , 2016, 37(S1): 192-200.
[15] ZHA Fu-sheng, WANG Lian-bin，LIU Jing-jing, XU Long, CUI Ke-rui. Engineering properties of heavy metal contaminated soil solidified/stabilized with high calcium fly ash [J]. , 2016, 37(S1): 249-254.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] XIANG Tian-bing, FENG Xia-ting, CHEN Bing-rui, JIANG Quan, ZHANG Chuan-qing. Rock failure mechanism and true triaxial experimental study of specimens with single structural plane under three-dimensional stress[J]. , 2009, 30(10): 2908 -2916 .
[2] HAO Dong-xue, CHEN Rong, LUAN Mao-tian, WU Ke. Numerical analysis of SBPT for estimation of undrained shear strength[J]. , 2010, 31(7): 2324 -2328 .
[3] HU Xiu-hong，WU Fa-quan. Research on two-parameter negative exponential distribution of discontinuity spacings in rock mass[J]. , 2009, 30(8): 2353 -2358 .
[4] LEI Hong-jun，LIU Zhong-ge，YU Yu-zhen，Lü He. Experimental study of seepage characteristics of clayey soil-structure interface under large shear deformation[J]. , 2011, 32(4): 1040 -1044 .
[5] ZHANG Le-wen, QIU Dao-hong, LI Shu-cai, ZHANG De-yong. Study of tunnel surrounding rock classification based on rough set and ideal point method[J]. , 2011, 32(S1): 171 -175 .
[6] BING Hui , HE Ping. Experimental study of water and salt redistributions of saline soil with different freezing modes[J]. , 2011, 32(8): 2307 -2312 .
[7] LI Wei-chao, XIONG Ju-hua, YANG Min. Improved method for calculating anti-overturning safety factor of cement-soil retaining wall in layered soil[J]. , 2011, 32(8): 2435 -2440 .
[8] WANG Hong-xin , SUN Yu-yong . Test study and bar system FEM for foundation pits considering excavation width[J]. , 2012, 33(9): 2781 -2787 .
[9] YONG Rui，TANG Hui-ming，HU Xin-li，LI Chang-dong，HUANG Lei. Applicability study of linear fitting method of shear strength parameters of rock mass discontinuities[J]. , 2012, 33(S2): 118 -124 .
[10] SUN Zhong-lin, DANG Jin-qian, FAN Heng-hui, WANG Fei. Experimental research on factors influencing dynamic shear modulus of dispersive clay[J]. , 2012, 33(12): 3669 -3673 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd