Articles & Issues
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
-
Received April 29, 2004
Accepted November 8, 2005
-
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.
Copyright © KIChE. All rights reserved.
All issues
Performance evaluation of electrocoagulation and electrodewatering system for reduction of water content in sewage sludge
Department of Mechanical Engineering, Pusan National University, San 30, Jangjeon-dong, Kumjung-gu, Busan 609-735, Korea
jklee@pusan.ac.kr
Korean Journal of Chemical Engineering, March 2006, 23(2), 188-193(6), 10.1007/BF02705714
Download PDF
Abstract
Electrocoagulation is applied to sewage sludge as a pretreatment process of an electrodewatering system to reduce the water content of sludge generated in wastewater treatment. The electrodewatering system, by incorporating an electric field as an additional driving force to the conventional pressure dewatering, has been evaluated as a function of an electrode material, applied voltage and filtration time. Experiments were carried out using sewage sludge with a pressure up to 392.4 kPa and applied electrical field ranging up to 120 V/cm. Mass median diameter of the sewage sludge by the effect of electrocoagulation increases from 34.7 μm to the 41.3 μm. The final water content of sewage sludge in the combination of both electrocoagulation and electrodewatering system can be reduced to 55 wt%, as com pared to 78wt% achieved with pressure dewatering alone. The combination of electrocoagulation and electrodewatering system shows a potential to be an effective method for reducing the water content in sludge.
References
APHA, Standard methods for the examination of water and waste water, 17 th Edition (1989)
Barton WA, Miller SA, Veal CJ, Dry. Technol., 17(3), 497 (1999)
Biwyk A, Electrocoagulation of biologically treated sewage, Proc. 35th Purdue Ind. Waste Conf., Lafayette, IN (1980)
Chen LL, Sheng HL, Chemosphere, 54, 235 (2004)
Chen X, Chen G, Yue PL, Sep. Purif. Technol., 19, 65 (2000)
Gazber S, Abadie JM, Colin F, Water Sci. Technol., 30(8), 169 (1994)
Ibanez JG, Takimoto MM, Ruben CV, J. Chem. Educ., 72(11), 1050 (1995)
Kobya M, Can OT, Bayramoglu M, J. Hazard. Mater. B, 100, 163 (2003)
Kondoh S, Hiraoka M, Water Sci. Technol., 22, 259 (1990)
Koren JPF, Syversen U, Filtr. Sep., 32(2), 146 (1995)
Lee JK, Shin HS, Park CJ, Lee CG, Lee JE, Kim YW, Korean J. Chem. Eng., 19(1), 41 (2002)
Lockhart NC, Colloids Surf., 6, 239 (1983)
Pouet MF, Grasmick A, Water Sci. Technol., 31(3-4), 275 (1995)
Rubach S, Saur IF, Filtr. Sep., 34(8), 877 (1997)
Shin HS, Yeo CS, Byun SH, Lee JK, Development of the electroosmotic belt press for sewage sludge, The 4th Korean Conference on Aerosol and Particle Technology, Yong-Pyong, Korea, 63 (2003)
Shin SH, Kim YH, Jung SK, Suh KH, Kang SG, Jeong SK, Kim HG, Korean J. Chem. Eng., 21(4), 806 (2004)
Sung DJ, Parekh BK, Korean J. Chem. Eng., 13(3), 304 (1996)
Tsouris C, DePaoli DW, Shor JT, Hu MZC, Ying TY, Colloids Surf., 177, 223 (2001)
Vijh AK, Novak JP, Dry. Technol., 15(2), 699 (1997)
Vik EA, Carlson DA, Eikum AS, Gjessing ET, Water Res., 18(11), 1355 (1984)
Barton WA, Miller SA, Veal CJ, Dry. Technol., 17(3), 497 (1999)
Biwyk A, Electrocoagulation of biologically treated sewage, Proc. 35th Purdue Ind. Waste Conf., Lafayette, IN (1980)
Chen LL, Sheng HL, Chemosphere, 54, 235 (2004)
Chen X, Chen G, Yue PL, Sep. Purif. Technol., 19, 65 (2000)
Gazber S, Abadie JM, Colin F, Water Sci. Technol., 30(8), 169 (1994)
Ibanez JG, Takimoto MM, Ruben CV, J. Chem. Educ., 72(11), 1050 (1995)
Kobya M, Can OT, Bayramoglu M, J. Hazard. Mater. B, 100, 163 (2003)
Kondoh S, Hiraoka M, Water Sci. Technol., 22, 259 (1990)
Koren JPF, Syversen U, Filtr. Sep., 32(2), 146 (1995)
Lee JK, Shin HS, Park CJ, Lee CG, Lee JE, Kim YW, Korean J. Chem. Eng., 19(1), 41 (2002)
Lockhart NC, Colloids Surf., 6, 239 (1983)
Pouet MF, Grasmick A, Water Sci. Technol., 31(3-4), 275 (1995)
Rubach S, Saur IF, Filtr. Sep., 34(8), 877 (1997)
Shin HS, Yeo CS, Byun SH, Lee JK, Development of the electroosmotic belt press for sewage sludge, The 4th Korean Conference on Aerosol and Particle Technology, Yong-Pyong, Korea, 63 (2003)
Shin SH, Kim YH, Jung SK, Suh KH, Kang SG, Jeong SK, Kim HG, Korean J. Chem. Eng., 21(4), 806 (2004)
Sung DJ, Parekh BK, Korean J. Chem. Eng., 13(3), 304 (1996)
Tsouris C, DePaoli DW, Shor JT, Hu MZC, Ying TY, Colloids Surf., 177, 223 (2001)
Vijh AK, Novak JP, Dry. Technol., 15(2), 699 (1997)
Vik EA, Carlson DA, Eikum AS, Gjessing ET, Water Res., 18(11), 1355 (1984)
