Drying characteristics of sewage sludge

Jiang Qian; Yeong Woo Yoon; Pil Sang Youn; Ji Hye Kim; Don Sun Choi; Jeong-Hoo Choi; Young Chan Choi; Bongjin Jung

Korean Journal of Chemical Engineering, Vol.28, No.7, 1636-1640, July, 2011

DOI10.1007/s11814-011-0009-5 Export Citation

Drying characteristics of sewage sludge

Jiang Qian, Yeong Woo Yoon, Pil Sang Youn, Ji Hye Kim, Don Sun Choi, Jeong-Hoo Choi^†, Young Chan Choi¹, and Bongjin Jung²

Department of Chemical Engineering, Konkuk University, 1 Whayang-dong, Gwangjin-gu, Seoul 143-701, Korea
¹Korea Institute of Energy Research, 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Korea
²Department of Environmental & Energy Engineering, The University of Suwon, Suwon 445-743, Korea

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To obtain the drying rate of sewage sludge for use in design of a conductive indirect-heating dryer with agitation, the drying characteristics of sewage sludge from three different wastewater treatment plants were investigated with a thermogravimetric analyzer (TGA) in isothermal conditions. Temperature and sample mass were considered as experimental variables. The drying mechanism agreed well with the shrinking core model dominated by the kinetic rate. The activation energy of drying was 17.30 kJ/g mol. A rate equation was proposed for drying of sewage sludge.

Keywords:Drying;Rate;Activation Energy;Sewage Sludge

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[Related Articles]

[1] Vesilind PA, Spinosa L, in Sludge into biosolids, Spinosa L, Vesilind PA Eds., IWA Publishing, London, UK, 3 (2001)

[2] Spinosa L, Water Sci. Technol., 44, 1 (2001)

[3] Duenser H, Umwelt-Technologie Aktuell., 7, 124 (1996)

[4] Park SI, Park KH, Anal. Sci. Technol., 10, 418 (1997)

[5] Stolarek P, Ledakowicz S, Water Sci. Technol., A Journal of the International Association on Water Pollution Research., 44, 333 (2001)

[6] Wang W, Li A, Anquan Yu Huanjing Xuebao., 7, 34 (2007)

[7] Du T, Cai J, Dong H, Yang B, Dongbei Daxue Xuebao, Ziran Kexueban., 29, 553 (2008)

[8] Jiang R, Li A, Wang W, Zhongguo Huanjing Kexue., 29, 22 (2009)

[9] Li RD, Yang YT, Li YL, Niu HC, Wei LH, Sun Y, Ke X, Huan jing ke xue=Huanjing kexue/[bian ji, Zhongguo ke xue yuan huan jing ke xue wei yuan hui "Huan jing ke xue" bian ji wei yuan hui.], 30, 3405 (2009)

[10] Slim R, Zoughaib A, Clodic D, J. Porous Media., 12, 1195 (2009)

[11] Choi CK, Yun DY, Chem. Ind. Technol., 8, 7 (1990)

[12] Kim JW, Drying characteristics of a mixed-flow dryer, M.S. Thesis, Department of Chemical Engineering, Konkuk University, Seoul, Korea (1997)

[13] Choi JH, Kim JW, Moon YS, Kim SD, in ICheaP-9, Proceedings of 9th Int. Conf. on Chemical and Process Engineering, Chemical Engineering Transactions, Pierucci S Eds., Associazione Italiana Di Ingegneria Chimica (AIDIC), 17, 693 (2009)

[14] Deng WY, Yan JH, Li XD, Wang F, Zhu XW, Lu SY, Cen KF, J. Hazard. Mater., 162(1), 186 (2009)

[15] Choi JH, Kim MH, Kim JH, Choi YC, Journal of the Chinese (Taiwan) Institute of Chemical Engineers., 41, 157 (2010)

[16] McCabe WL, Smith JC, Harriott P, Unit operations of chemical engineering, 5th Ed., McGraw-Hill, New York, U.S.A. (1993)

[17] Levenspiel O, Chemical reaction engineering, 3rd Ed., Wiley, New York, U.S.A. (1999)

[18] Bird RB, Stewart WE, Lightfoot EN, Transport phenomena, 2nd Ed., Wiley, New York, U.S.A. (2002)

[19] Himmelblau DM, Riggs JB, Basic principles and calculations in chemical engineering, 7th Ed., Prentice Hall, New Jersey, U.S.A. (2004)

[20] Shafrinskii YS, Izvestiya Fiziko-Khimicheskogo Nauchno-Issledovatel'skogo Instituta pri Irkutskom Gosudarstvennom Universitete, 7,76 (1966)

[21] Mayatskii VA, Sokolov LB, Gerasimov VD, Kasyanets AV, Zhurnal Prikladnoi Khimii (Sankt-Peterburg, Russian Federation), 57, 1632 (1984)

[22] Roberts JS, Tong CH, Int. J. Food Properties., 6, 355 (2003)

[23] Waje SS, Meshram MW, Chaudhary V, Pandey R, Mahanawar PA, Thorat BN, Brazilian J. Chem. Eng., 22, 209 (2005)

[24] Arora S, Bharti S, Sehgal VK, Drying Technology., 24, 189 (2006)

[25] Villeneuve S, Gelinas P, LWT-Food Science and Technology., 40, 465 (2006)

[26] Di Scala K, Crapiste G, LWT-Food Science and Technology., 41, 789 (2008)

[27] Tari O, Pekcan O, Drying Technology., 26, 101 (2008)