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http://dx.doi.org/10.4491/eer.2008.13.3.112

Feasibility of Recycling Residual Solid from Hydrothermal Treatment of Excess Sludge  

Kim, Kyoung-Rean (Marine Environment Research Department, Korea Ocean Research and Development Institute)
Fujie, Koichi (Department of Ecological Engineering, Toyohashi University of Technology)
Fujisawa, Toshiharu (EcoTopia Science Institute, Nagoya University)
Publication Information
Environmental Engineering Research / v.13, no.3, 2008 , pp. 112-118 More about this Journal
Abstract
Residual solid in excess sludge treated by hydrothermal reaction was investigated as raw material for its recycling. Treated excess sludge and residual solid were also focused on their content change during hydrothermal reaction. Two kinds of excess sludge, obtained from a local food factory and a municipal wastewater treatment process, were tested under various conditions. Following hydrothermal reaction, depending on the reaction conditions, biodegradable substrates in treated excess sludge appeared to increase. The separated residual solid was a composite composed of organic and inorganic materials. The proportion of carbon varied from 34.0 to 41.6% depending on reaction conditions. Although 1.89% of hazardous materials were detected, SiO2 (Quartz) was a predominant constituent of the residual solid. X-ray diffraction (XRD) experiments revealed that the residual solid was of a partially amorphous state, suggesting that the residual solids could be easily converted to stable and non harmful substances through a stabilization process. Thus, this technology could be successfully used to control excess sludge and its reuse.
Keywords
Biodegradability improvement; Excess sludge; Hydrothermal reaction; Residual solid; Resource recovery;
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Times Cited By KSCI : 4  (Citation Analysis)
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1 American Public Health Association, American Water Works Association and Water Environment Federation, Standard Methods for the Examination of Water and Wastewater, 20th ed., United Book Press, Inc., Baltimore, Maryland, USA, pp. 2-57-59 (1998)
2 Roeleveld, P., Loeffen, P., Temmink, H., and Klapwijk, B., "Dutch analysis for P-recovery from municipal wastewater," Water Sci. Technol., 49(10), 191-199 (2004)
3 Taruya, T., Okuno, N., and Kanaya, K., "Reuse of sewage sludge as raw material of Portland cement in japan," Water Sci. Technol., 46(10), 255-258 (2002)
4 Yasui, H., and Shibata, M., "An innovative approach to reduce excess sludge production in the activated sludge process," Water Sci. Technol., 30(9), 11-20 (1994)
5 Sakai, Y., Fukase, T., Yasui, H., and Shibata, H., "An activated sludge process without excess sludge production," Water Sci. Technol., 36(11), 163-170 (1997)   DOI   ScienceOn
6 Shanableh, A., "Production of useful organic mater from sludge using hydrothermal treatment," Water Res., 34(3), 945-951 (2000)   DOI   ScienceOn
7 Neyens, E., and Baeyens, J., "A review of thermal sludge pre-treatment process to improve dewaterability," J. Hazard. Mater., B98, 51-67 (2003)
8 Staszak, C. N., Malinkowski, K. C., and Killilea, W. R., "The pilot-scale demonstration of MODAR oxidation process for the destruction of hazardous organic waste materials," Environ. Prog., 6, 39-43 (1987)   DOI   ScienceOn
9 Shin, K., Cho, H., Nam, Y., and Lee, D., "Hydrothermal decpmposition of formic acid in sub- and supercritical water," Environ. Eng. Res., 3(2), 61-66 (1998)
10 Novak, J. T., and Park, C., "Chemical conditioning of sludge," Water Sci. Technol., 49(10), 73-80 (2004)
11 Oh, S., "Improvement of anaerobic digestion rate of biosolids in waste activated sludge (WAS) by ultrasonic pretreatment," Environ. Eng. Res., 11(3), 143-148 (2006)   과학기술학회마을   DOI   ScienceOn
12 Savage, P. E., "Organic chemical reactions in supercritical water," Chem. Rev., 99, 603-621 (1999)   DOI   ScienceOn
13 Henze, M., Gujer, W., Mino, T., Matsuo, T., Wentzel, M. C., and Marais, G. v. R., "Wastewater and biomass characterization for the activated sludge model No. 2: biological phosphorus removal," Water Sci. Technol., 31(2), 13-23 (1995.)
14 Fujita, M., Kim, K., Daimon, H., and Fujie, K., "Evaluation of the usability of excess sludge treated by hydrothermal reaction as carbon sources for enhanced biological phosphorus removal," Environmental Engineering Research (Japanese), 40, 23-28 (2003)
15 Kim, K., Fujita, M., Daimon, H., and Fujie, K., "Biodegradability improvement and structural conversion of poly vinyl alcohol (PVA) by sub- and supercritical water reaction," J. Chem. Eng. Jpn., 37(6), 744-750 (2004)   DOI   ScienceOn
16 Kim, K., Fujita, M., Daimon, H., and Fujie, K., "Application of hydrothermal reaction for excess sludge reuse as carbon sources in biological phosphorus removal," The 4th World Water Congress, IWA 2004 Marrakech, September 19-24, 2004, Marrakech, Morocco, Presentation Ref. 85748 in CD ROM (2004)
17 Kappeler, J., and Gujer, W., "Estimation of kinetic parameters of heterotrophic biomass under Aerobic conditions and characterization of wastewater for activated sludge model," Water Sci. Technol., 25(6), 125-139 (1992)
18 Francis, A. A., "Conversion of blast furnace slag into new glass-ceramic material," J. Eur. Ceram. Soc., 24, 2819-2824 (2004)   DOI   ScienceOn
19 Jung, B., "Characteristics of high temperature viscosity in solid waste incineration ash," Environ. Eng. Res., 8(5), 236-242 (2003)   DOI   ScienceOn
20 Kim, C., Lee, H., and Yoon, T., "Enhanced nitrification by immobilized clinoptilolite in an activated sludge," Environ. Eng. Res., 8(2), 49-58 (2003)   DOI   ScienceOn
21 Jung, B., Koo, S., and Lee, H., " High temperature thermal characteristics of sewage sludge and its ash," Environ. Eng. Res., 5(2), 101-106 (2000)
22 Jang, A., Jang, H., Kim, S., Lee, J., and Kim, I., "Decontamination of heavy metals from dewatered sludge by acidithiobacillus ferrooxidans," Environ. Eng. Res., 7(4), 199-206 (2002)   DOI   ScienceOn
23 Odegaard, H., "Sludge minimization technologies-an overview," Water Sci. Technol., 49(10), 31-40 (2004)
24 Saby, S., Djafer, M., and Chen, G.-H., "Feasibility of using a chlorination step to reduce excess sludge in activated sludge process," Water Res., 36(3), 656-666 (2002)   DOI   ScienceOn
25 Insel, G., Karahan, Gul O., Orhon, D., Vanrolleghem, P. A., and Henze, M., "Important limitations in the modeling of activated sludge biased calibration of the hydrolysis process," Water Sci. Technol., 45(12), 23-36 (2002)
26 Aymonier, C. P., Beslin, P., Jolivalt, C., and Cansell, F., "Hydrothermal oxidation of nitrogen containing compounds: the fenuron," J. Supercrit. Fluid., 17, 45-54 (2000)   DOI   ScienceOn
27 Kang, K., Quitain, A. T., Daimon, H., Noda, R., Goto, N., Hu, H.-Y., and Fujie, K., "Optimization of amino acids production from waste fish entrails by hydrolysis in suband supercritical water," Can. J. Chem. Eng., 79, 65-70 (2001)   DOI
28 Kim, K., Fujita, M., Daimon, H., and Fujie, K., "Application of hydrothermal reaction to biodegradability improvement of refractory pollutants: structural conversion of di- and trichloroacetic acid to biodegradable products," Journal of Water and Environment Technology (on-line journal), 1(2), 217-224 (2003)   DOI
29 Shimamura, K., Tanaka, T., Miura, Y., and Ishikawa, H., "Development of a high efficiency phosphorus recovery method using a fluidized-bed crystallized phosphorus removal system," Water Sci. Technol., 48(1), 163-170 (2003)
30 Okuno, N., Ishikawa, Y., Shimizu, A., and Yoshida, M., "Utilization of sludge in building materials," Water Sci. Technol., 49(10), 225-232 (2004)   DOI
31 Balmer, P., "Phosphorus recovery-an overview of potentials and possibilities," Water Sci. Technol., 49(10), 185-190 (2004)
32 Quitain, A. T., Sato, N., Daimon, H., and Fujie, K., "Production of valuable materials by hydrothermal treatment of shrimp shells," Ind. Eng. Chem. Res., 40, 5885-5888 (2001)   DOI   ScienceOn