Experimental Research on Mercury-Containing Wastewater by Fly Ash

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To study the removal capacity of modified fly ash in wastewater containing mercury ions under different conditions, the carbide slag was added to fly ash, and the pyrogenic process was employed to modify the fly ash. The result indicated that the wastewater had a pH value of 11, the modified fly ash dosage was 2.0 g, the adsorption equilibrium time was 40 minutes, the reaction temperature was 30 °C, the removal rate could reach 97.1%, and the Freundlich-type adsorption isotherm can be used to simulate the adsorption process effectively. The modified fly ash can be used in the removal of mercury-containing wastewater, the overall result of the experiment is satisfactory, which indicates that the modified fly ash has potential value for practical application.

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559-563

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October 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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[1] Wang.X. R, Cui. J, The loss and management of mercuric chloride in production of calcium carbide method PVC, J. Polyvinyl Chloride, 2011, 39(4): 35-39.

Google Scholar

[2] Wang.L. D, Analysis on the distribution of the consumed mercuric chloride catalyst in the production of PVC by calcium carbide method, J. Polyvinyl Chloride, 2009, 37(3): 18-21.

Google Scholar

[3] Zhao.Y. J, Zhao.X. C, Jiang.Y. R, Kinetics of adsorption of methylene blue from aqueous solution by ultra-fine fly ash based adsorbents, J. Xi'an Univ. of Arch. &Tech(Natural Science Edition), 2009, 41(3): 435-438.

Google Scholar

[4] Viraraghavan. T, Rao. Ganesh A K, Adsorption of cadmium and chromium from wastewater by fly Ash, J. Journal of Environmental Science and Health, 1991, 6(5): 721-753.

Google Scholar

[5] Vinod K, Gupta, lmran A, Utilisation of bagasse fly ash(a Sugar industry waste)for the removal of copper and zinc from wastewater, J. Separation and Purifieation Technology, 2000, 18: 131-140.

DOI: 10.1016/s1383-5866(99)00058-1

Google Scholar

[6] Di. J. Z, Ma. L, Li. A. H, etal, Experim ent study of treatment waste water of higher iron manganese and ammonia nitrogen by scrap iron+fly ash, J. Non-M etallic Mines, 2012, 35(4): 61-63.

Google Scholar

[7] Xu.X. T, Huo. L, Zuo.Y. Y, etal, Performance research on arsenic adsorption from aqueous solution by aluminum-modified fly ash cenospheres, J. China Environmental Science, 2011, 31(8): 1300-1305.

Google Scholar

[8] Wang.C. F, Li.J. S, Wang.L. J, etal, Adsorption kinetics of heavy metalions on NaA zeolite synthesized from fly ash, J. China Environmental Science, 2009, 29(1): 36-41.

Google Scholar

[9] Wang.H. K, He. Q, Han.M. X, Research on preparation of composite materials of fly ash/chitosan for dreatment of containing-heavy metal industry wastewater, J. Ion Exchange and Adsorption, 2010, 26(4): 362-369.

Google Scholar

[10] Song. K, Liu.J. X, Shi. F, Yu. L, Xue.W. P, Sun.X. L, Fu.R. J, Hydrothermal synthesis of zeolite P from flyash and its adsorption to Pb2+, J. Journal of Dalian University of Technology, 2009, 28(1): 44-47.

Google Scholar

[11] Heechan Cho, Dalyoung Oh, Kwanho Kim, A Study on removal characteristics of heavy metals from aqueous solution by fly ash,J. Journal of Hazardous Materials, 2005, 127: 187-195.

DOI: 10.1016/j.jhazmat.2005.07.019

Google Scholar

[12] Zeng.Z. Z, Wang.X. L, Li. B, et al, Experim ent in the treatm ent of tannery wastewater by zeolite A from coal fly ash,J. Journal of Lanzhou University(Natural Sciences), 2009, 28(1): 44-47.

Google Scholar

[13] Paola Catalfamo, Sebastiana Di Pasquale, Francesco Corigliano, et al, Influence of the Calcium content on the coal fly ash features in some innovative applications. Resourees, J. Conservation and Recycling, 1997, 20: l19-125.

DOI: 10.1016/s0921-3449(97)00013-x

Google Scholar

[14] Mu.S. J, Yao. L, Deng.S. P, Study on adsorption treatment of wastewater containing mercury with modified fly Ash, J. Science Technology mad Engineering, 2008, 8(15): 4415-4417.

Google Scholar

[15] Wang.D. Z, Zhao.Y. P, The research on dealing with the wastewater of mercury ion with fly ash,J. Chemistry & Bioengineering, 2004, 6: 49-50.

Google Scholar

[16] Lin.J. X, Zhan.S. L, Fang.M. H, etal, Adsorption of basic dye form aqueous solution onto fly ash. J. Environ, Manage, 2007, 87(1): 193-200.

DOI: 10.1016/j.jenvman.2007.01.001

Google Scholar

[17] Hsu.T. C, Yu.C. C, Yeh.C. M, Adsorption of Cu2+ from water using raw and modified coal fly ashes, J. Fuel. 2008. 87(7): 1355-1359.

DOI: 10.1016/j.fuel.2007.05.055

Google Scholar