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Language: English

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received July 21, 2006
Accepted January 3, 2007

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Application of hybrid photocatalysis systems coupled with flocculation and adsorption to biologically treated sewage effluent for organic removal

Ho Kyong Shon Saravanamuthu Vigneswaran^† Jong-Ho Kim¹ Huu Hao Ngo

Faculty of Engineering, University of Technology, Sydney, P.O. Box 123, Broadway, NSW 2007, Australia ¹Faculty of Applied Chemical Engineering & RRC for Photonic Materials and Devices, Chonnam National University, Gwangju 500-757, Korea

s.vigneswaran@uts.edu.au

Korean Journal of Chemical Engineering, July 2007, 24(4), 618-623(6), 10.1007/s11814-007-0013-y

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Abstract

The application of a photocatalysis hybrid system coupled with flocculation and adsorption in treating biologically treated sewage effluent (BTSE) was investigated. The removal of organic matter was studied in terms of dissolved organic matter (DOC), removal of hydrophobic (HP), transphilic (TP) and hydrophilic (HL) fractions, and molecular weight (MW) distribution. The photooxidation removed the majority of MW (263, 580, 865, and 43109 daltons) within the first 30 minutes of operation. The removal of MW range of organic matter of 330 daltons was low. DOC removal of HP and TP was high (80%). DOC removal from HL fraction was, however, minimum. The photocatalytic system with simultaneous PAC adsorption and FeCl3 flocculation removed the effluent organic matter (EfOM) up to 90%. Therefore, photocatalysis with the ferric chloride (FeCl3) flocculation and PAC adsorption hybrid system can be a possible option in the removal of DOC from BTSE for water reuse.

Keywords

Adsorption Flocculation Hydrophobic Hydrophilic Molecular Weight Distribution Photocatalysis Transphilic Wastewater

References

Shon HK, Vigneswaran S, Kim IS, Cho J, Ngo HH, Water Res., 38, 1933 (2004)
Sagawe G, Brandi RJ, Bahnemann D, Cassano AE, Chem. Eng. Sci., 58(12), 2587 (2003)
Molinari R, Borgese M, Drioli E, Palmisano L, Schiavello M, Catal. Today, 75(1-4), 77 (2002)
Arana J, Melian JAH, Rodriguez JMD, Diaz OG, Viera A, Pena JP, Sosa PMM, Jimenez VE, Catal. Today, 76(2-4), 279 (2002)
Blount MC, Kim DH, Falconer JL, Environ. Sci. Technol., 35, 2988 (2001)
Xiaoli Y, Huixiang S, Dahui W, Korean J. Chem. Eng., 20(4), 679 (2003)
Lee HJ, Kang DW, Chi J, Lee DH, Korean J. Chem. Eng., 20(3), 503 (2003)
Thiruvenkatachari R, Kwon TO, Moon IS, Korean J. Chem. Eng., 22(6), 938 (2005)
Lu MC, Roam GD, Chen JN, Huang CP, Water Sci. Technol., 30, 29 (1994)
Doong RA, Maithreepala RA, Chang SM, Water Sci. Technol., 42, 253 (2000)
Shon HK, Vigneswaran S, Ngo HH, Kim JH, Water Res., 39, 2549 (2005)
Kleine J, Peinemann KV, Schuster C, Warnecke HJ, Chem. Eng. Sci., 57(9), 1661 (2002)
Molinari R, Grande C, Drioli E, Palmisano L, Schiavello M, Catal. Today, 67(1-3), 273 (2001)
Al-Rasheed R, Cardin DJ, Chemosphere, 51, 925 (2003)
Cho JW, Amy G, Pellegrino J, Yoon YM, Desalination, 118(1-3), 101 (1998)
Yoon YM, Amy G, Cho JW, Her N, Desalination, 173(3), 209 (2005)
Imai A, Fukushima T, Matsushige K, Kim YH, Choi K, Water Res., 36, 859 (2002)
Her NG, Amy G, Foss D, Cho J, Yoon Y, Kosenka P, Environ. Sci. Technol., 36, 1069 (2002)
Shon HK, Vigneswaran S, Snyder SA, Crit. Rev. Environ. Sci. Technol., 36, 327 (2006)