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http://dx.doi.org/10.5855/ENERGY.2012.21.2.194

The Study on the Solubilization of Sewage Sludge by Electrolysis Treatment  

Kim, Jae Hyung (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Jeon, Hye Yeon (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Lee, Jun Cheol (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Pak, Dae Won (Graduate School of energy and Environment, Seoul National University of Technology & Science)
Publication Information
Journal of Energy Engineering / v.21, no.2, 2012 , pp. 194-201 More about this Journal
Abstract
In this research, a sewage sludge solubilization study using electrolysis was performed as a pre-treatment for anaerobic digestion efficiency improvement. SCOD potency increased as the treatment time and electric current density increased with sludge electrolysis treatment while SCOD, TN, and TP especially showed the highest increase of 7.4 times, 1.9 times, and 1.3 times respectively at the 60 minute point of treatment. Solubilization was high at the strong acidic and alkaline status for the sewage sludge electrolysis treatment results along early stage pH, and especially, a high solubilization percentage of 32.9% was seen at pH 12. The above result shows that there was an increase of organic matter able to be used by microorganisms from sludge floc and the destruction of EPS structure due to direct and indirect oxidation following electrolysis.
Keywords
Sewage sludge; Solubilization; Electrolysis; pre-treatment;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 환경부, 2009 하수도통계, 2010.
2 환경부, "미래지향형 하수처리 시스템에 대한 기술동향; 기술동향보고서", 2011.
3 배재근, "국내 하수슬러지 처리현황과 해결방안", 한국상하수도협회지, 2003, 3, 28-35.   과학기술학회마을
4 환경부, "하수처리시설 에너지 독립선언! 에너지자립화 기본계획", 2010.
5 H. Carrere, C. Dumas, A. Battimelli, D. J. Baststone, J. P. Delgenes, J. P. Steyer, I. Ferrer, "Pretreatment methods to improve sludge anaerobic degradability: A review", Journal of Hazardous materials, 2000, 183, 1-15.
6 M. R. Salsabil, A. Prorot, M. Casellas, C. Dagot, "Pre-treatment of activated sludge: Effect of sonication on aerobic and anaerobic digestibility", Chem. Eng. J., 2009, 148, 327-335.   DOI   ScienceOn
7 H. Li, Y. Y. Jin, R. B. Mahar, Z. Y. Wang, Y. F. Nie, "Effects of ultrasonic disintegration on sludge microbial activity and dewaterability", J. Hazard. Mater., 2009, 161, 1421-1426.   DOI
8 M. Dohanyos, J. Zabranska, J. Kutil, P. Jenicek, "Improvement of anaerobic digestion of sludge", Water Sci. Technol. 2004, 49, 89-96.
9 C. Fjordside, "An operating tale from Naestved Sewage Treatment Plant", in: Municipal wastewater treatment Nordic Conference, Copenhagen (Denmark), 2001.
10 X. Yang, X. Wang, L. Wang, "Transferring of components and energy output in industrial sewage sludge disposal by thermal pretreatment and two-phase anaerobic process", Bioresour. Technol. 2010, 101, 2580-2584.   DOI   ScienceOn
11 J. Kim, C. Park, T. H. Kim, M. Lee, S. Kim, S. W. Kim, J. Lee, "Effects of various pretreatments for enhanced anaerobic digestion with waste activated sludge", J. Biosci. Bioeng., 2003, 95, 271-275.   DOI
12 J. Rubio, M. L. Souza, R. W. Smith, "Overview of flotation as a wastewater treatment technique", Minerals engineering, 2002, 15, 139-155.   DOI   ScienceOn
13 K. W. Cho, C. M. Chung, Y. J. Kim, T. H. Chung, "Continuous clarification and thickening of activated sludge by electrolytic bubbles under control of scale deposition", Bioresource Technology, 2010, 101, 337-346.   DOI   ScienceOn
14 이지선, 장인성, 이철구, 정선용, "전기분해에 의한 하수 슬러지 가용 효과 연구", 한국산학기술학회논문지, 2011, 12, 979-984.
15 APHA, AWWA and WEF : Standard methods for the examination of water and wastewater, 20th ed. Baltimore, American Public Health Association 2, 1998.
16 M. S. Casper, Hydrogen Manufacture by Electrolysis, Thermal Decom- position, and Unusual Techniques, M. S. Casper, Ed., Park Ridge, NJ: Noyes Data Corp., 1978.
17 환경부, "마이크로파를 이용한 하수슬러지 전처리 및 감 량화 공정 실증연구", 2009.
18 H. P. Yuan, K. B. Cheng, S. P. Chen, N. W. Zhu, Z. Y. Zhou, "New sludge pretreatment method to improve dewaterability of waste activated sludge", Bioresource Technology, 2011, 102, 5659-5664.   DOI   ScienceOn
19 M. F. Dignac, V. Urbain, D. Rybacki, A. Bruchet, D. Snidaro, P. Scribe, "Chemical description of extracellular polymers: implication on activated sludge floc structure", Water Sci. Technol., 1998, 38, 45-53.
20 B. Jin, B. M. Wilen, P. Lant, "Impacts of morphological, physical and chemical properties of sludge flocs on dewaterability of activated sludge", Chem. Eng. J., 2004, 98, 115-126.   DOI   ScienceOn
21 K. Keiding, P. H. Nielsen, "Desorption of organic macromolecules from activated sludge: effect of ionic composition", Water Res., 1997, 31, 1665-1672.   DOI   ScienceOn
22 L. J. Song, N. W. Zhu, H. P. Yuan, Y. Hong, J. Ding, "Enhancement of waste activated sludge aerobic digestion by electrochemical pre-treatment", Water Research, 2010, 44, 4371-4378.   DOI   ScienceOn
23 C. Bougrier, C. Albasi, J. P. Delgenes, H. Carrère, "Effect of ultrasonic, thermal and ozone pre-treatments on waste activated sludge solubilisation and anaerobic biodegradability", Chemical engineering Processing, 2006, 45, 711-718.   DOI   ScienceOn
24 L. C. Chang and T. C. Wen, "Indirect oxidation effect in electrochemical oxidation treatment of land fill leachate". Water Research, 1995, 29, 671-675.   DOI   ScienceOn
25 J. Naumczyk, L. Szpyrkowicz, F. G. Zilio, "Electrochemical treatment of textile wastewater", Water Sci. Technol., 1996, 34, 17-24.
26 J. D. Watson, N. H. Hopkins, J. W. Roberts, J. A. Steitz, A. M. Weiner, "Cells obey the laws of chemistry", in: Molecular Biology of the Gene, The Benjamin/Cummings Publishing Company, Menlo Park, CA, 1987, 25-64.
27 A. Erdincler, P. A. Vesilind, "Effect of sludge cell disruption on compactibility of biological sludges", Water Sci. Technol., 2000, 42, 119-126.
28 J. Wingender, K. E. Jager, H. C. Flemming, "Interaction between extracellular polysaccharides and enzymes", in: J. Wingender, T. R. Neu(Eds.), Microbial Extracellular Polymeric Substances, Springer, Heidelberg, 1999, 1-19.