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The Extraction and Stripping of Hg (II) from Produced Water via Hollow Fiber Contactor

Authors: Ura Pancharoen, Dolapop Sribudda

Abstract:

The separation of Hg (II) from produced water by hollow fiber contactors (HFC) was investigation. This system included of two hollow fiber modules in the series connecting. The first module used for the extraction reaction and the second module for stripping reaction. Aliquat336 extractant was fed from the organic reservoirs into the shell side of the first hollow fiber module and continuous to the shell side of the second module. The organic liquid was continuously feed recirculate and back to the reservoirs. The feed solution was pumped into the lumen (tube side) of the first hollow fiber module. Simultaneously, the stripping solution was pumped in the same way in tube side of the second module. The feed and stripping solution was fed which had a countercurrent flow. Samples were kept in the outlet of feed and stripping solution at 1 hour and characterized concentration of Hg (II) by Inductively Couple Plasma Atomic Emission Spectroscopy (ICP-AES). Feed solution was produced water from natural gulf of Thailand. The extractant was Aliquat336 dissolved in kerosene diluent. Stripping solution used was nitric acid (HNO3) and thiourea (NH2CSNH2). The effect of carrier concentration and type of stripping solution were investigated. Results showed that the best condition were 10 % (v/v) Aliquat336 and 1.0 M NH2CSNH2. At the optimum condition, the extraction and stripping of Hg (II) were 98% and 44.2%, respectively.

Keywords: wastewater treatment, hollow fiber contactor, produced water, Hg (II)

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1106829

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References:


[1] D. W. Boening, Ecological effects, transport, and fate of mercury: a general review, Chemosphere, 40:1335-1351, 2000.
[2] H.-B. Lia, S. Yua, G.-L. Lia, H. Deng, B .Xu, J. Ding, J.-B. Gao, Y.-W. Hong and M.-H. Wong, Spatial distribution and historical records of mercury sedimentation in urban lakes under urbanization impacts, Sci. Total. Environ 445–446:117-125, 2013.
[3] C. Deng, D. Zhang, X. Pan, F. Chang and S. Wang, Toxic effects of mercury on PSI and PSII activities, membrane potential and transthylakoid proton gradient in Microsorium pteropus, J. Photoch. Photobio. B., 127:1-7, 2013.
[4] Thailand regulatory discharge standards, Ministry of Industry, Thailand. 1996.
[5] B. Zhang, J. Liu, C. Zheng and M. Chang, Theoretical study of mercury species adsorption mechanism on MnO2 (1 1 0) surface, Chem. Eng. J., 256:93-100, 2014.
[6] R. Meera, T. Francis and M.L.P. Reddy, Studies on the liquid–liquid extraction of mercury (II) from acidic chloride solutions using Cyanex 923. Hydrometallurgy, 61:97-103, 2001.
[7] F. B. M. Fabrega and M.B. Mansur, Liquid - liquid extraction of mercury (II) from hydrochloric acid solutions by Aliquat 336, Hydrometallurgy, 87:83-90, 2007.
[8] S. A. Ansari, P. K. Mohapatra, M. Iqbal, P. Kandwal, J. Huskens and W. verboom, Novel diglycolamide-functionalized calix(4)arenes for actinide extraction and supported liquid membrane studies: Role of substituents in the pendent arms and mass transfer modeling, J. Membrane Sci., 430:304–311, 2013.
[9] K. Chakrabarty, P. Saha and A.K. Ghoshal, Separation of mercury from its aqueous solution through supported liquid membrane using environmentally benign diluent, J. Membrane Sci., 350:395-401, 2010.
[10] Q. Li, Q. Liu and X. Wei, Separation study of mercury through an emulsion liquid membrane, Talanta, 43:1837-1842, 1996.
[11] A. Jabbari, M. Esmaeili and M. Shamsipur, Selective transport of mercury as HgCl4 2− through a bulk liquid membrane using K+- dicyclohexyl-18-crown-6 as carrier, Sep. Purif. Technol., 24:139-145, 2001.
[12] C. Fontàs, V. Salvadó and M. Hidalgo, Selective enrichment of palladium from spent automotive catalysts by using a liquid membrane system, J. Membrane Sci., 223:39-48, 2003.
[13] H.-D. Zheng, B.-Y. Wang, Y.-X. Wu, Q.-L. Ren, Instability mechanisms of supported liquid membranes for copper (II) ion extraction, Colloid. Surface. A., 351:38-45, 2009.
[14] I.M. Coelhoso, M.M. Cardoso, R.M.C. Viegas and J.P.S.G. Crespo, Transport mechanisms and modelling in liquid membrane contactors, Sep. Purif. Technol., 19:183-197, 2000.
[15] A. Gugliuzza, A. Basile, 2 - Membrane contactors: fundamentals, membrane materials and key operations, in: A. Basile (Ed.) Handbook of Membrane Reactors, Woodhead Publishing, 2013, pp. 54 – 106.