1. Li, , D. H. and J. J. Ganczarczyk, "Structure of activated sludge floes," Biotechnol. Bioeng., Vol. 35, No. 1, 57-65, 1990.
doi:10.1002/bit.260350109
2. Appels, L. , J. Baeyens, J. Degrµeve, and R. Dewil, "Principles and potential of the anaerobic digestion of waste-activated sludge," Prog. Energy Combust. Sci.,, Vol. 34, No. 6, 755-781, 2008.
doi:10.1016/j.pecs.2008.06.002
3. Eskicioglu, C. , K. J. Kennedy, and R. L. Droste, "Enhanced disinfection and methane production from sewage sludge by microwave irradiation," Desalination, Vol. 248, No. 1-3, 279-285, 2009.
doi:10.1016/j.desal.2008.05.066
4. Saha, M. , C. Eskicioglu, and J. Marin, "Microwave, ultrasonic and chemo-mechanical pretreatments for enhancing methane potential of pulp mill wastewater treatment sludge," Biores. Technol., Vol. 102, No. 17, 7815-7826, 2011.
doi:10.1016/j.biortech.2011.06.053
5. Salerno, M. B., H.-S. Lee, P. Parameswaran, and B. E. Rittmann, "Using a pulsed electric field as a pretreatment for improved biosolids digestion and methanogenesis," Water Environ. Res. , Vol. 81, No. 8, 831-839, 2009.
doi:10.2175/106143009X407366
6. Lee, I.-S., P. Parameswaran, J. N. Alder, and B. E. Rittmann, "Feasibility of focused-pulsed treated waste activated sludge as a supplemental electron donor for denitrification," Water Environ. Res., Vol. 82, No. 23, 2316-2324, 2010.
doi:10.2175/106143010X12609736967288
7. Sheng, J. , R. Vannela, and B. E. Rittmann, "Evaluation of cell-disruption effects of pulsed-electric-field treatment of synechocystis PCC 6803," Environ. Sci. Technol., Vol. 45, No. 8, 3795-3802, 2011.
doi:10.1021/es103339x
8. Park , B. , J.-H. Ahn, J. Kim, and S. Hwang, "Use of microwave pretreatment for enhanced anaerobiosis of secondary sludge," Water Sci. Technol., Vol. 50, No. 9, 17-23, 2004.
9. Eskicioglu , C., K. J. Kennedy, and R. L. Droste, "Enhancement of batch waste activated sludge digestion by microwave pretreatment," Water Environ. Res., Vol. 79, No. 11, 2304-2317, 2007.
doi:10.2175/106143007X184069
10. Hong, S. M. , J. K. Park, N. Terradej, Y. O. Lee, Y. K. Cho, and C. H. Park, "Pretreatment of sludge with microwaves for pathogen destruction and improved anaerobic digestion performance," Water Environ. Res., Vol. 78, No. 1, 76-83, 2006.
doi:10.2175/106143005X84549
11. Kaatze, U. and Y. Feldman, "Broadband dielectric spectrometry of liquids and biosystems," Meas. Sci. Technol., Vol. 17, No. 2, R17-R35, 2006.
doi:10.1088/0957-0233/17/2/R01
12. Stuchly , M. A. and S. S. Stuchly, "Coaxial line reflection methods for measuring dielectric properties of biological substances at radio and microwave frequencies --- a review," IEEE Trans. Instrum. Meas., Vol. 29, No. 3, 176-183, 1980.
doi:10.1109/TIM.1980.4314902
13. Kraszewski , A., M. A. Stuchly, and S. S. Stuchly, "ANA claibration method for measurements of dielectric properties," IEEE Trans. Instrum. Meas., Vol. 32, No. 2, 385-387, 1983.
doi:10.1109/TIM.1983.4315084
14. Bao, J.-Z., M. L. Swicord, and C. C. Davis, "Microwave dielectric characterization of binary mixtures of water, methanol, and ethanol," J. Chem. Phys., Vol. 104, No. 12, 4441-4445, 1996.
doi:10.1063/1.471197
15. Buchner , R., J. Barthel, and J. Stauber, "The dielectric relaxation of water between 0。C and 35。C," Chem. Phys. Lett.,, Vol. 306, No. 1-2, 57-63, 1999.
doi:10.1016/S0009-2614(99)00455-8
16. Schwan , H. P., "Linear and nonlinear electrode polarization and biological materials," Ann. Biomed. Eng., Vol. 20, No. 3, 269-288, 1992.
doi:10.1007/BF02368531
17. Raicu , V., T. Saibara, and A. Irimajiri, "Dielectric properties of rat liver in vivo: a noninvasive approach using an open-ended coaxial probe at audio/radio frequencies," Bioelectrochem. Bioenerg., Vol. 47, No. 2, 325-332, 1998.
doi:10.1016/S0302-4598(98)00171-8
18. Pethig , R., "Dielectric properties of biological materials: biophysical and medical applications," IEEE Trans. Electr. Insul., Vol. 19, No. 5, 453-474, 1984.
doi:10.1109/TEI.1984.298769