(1995), Volatile Fatty Acids as Indicators of Process Imbalance in Anaerobic Digestors, Applied Microbiology Biotechnology, Ahring, B. K., Sandberg, M., and Angelidaki, I. (1995). Volatile Fatty Acids as Indicators of Process Imbalance in Anaerobic Digestors, Applied Microbiology Biotechnology, 43(3), pp. 559-565., Vol. 43, No. 3, pp. 559-565

(2014), A New Upgraded Biogas Production Process: Coupling Microbialelectrolysis Cell and Anaerobic Digestion in Single-Chamber, Barrel-Shape Stainless Steel Reactor, Electrochemistry Communications, Bo, T., Zhu, X., Zhang, L., Tao, Y., He, X., Li, D., and Yan, Z. (2014). A New Upgraded Biogas Production Process: Coupling Microbialelectrolysis Cell and Anaerobic Digestion in Single-Chamber, Barrel-Shape Stainless Steel Reactor, Electrochemistry Communications, 45, pp. 67-70., Vol. 45, pp. 67-70

(2006), Combination of Thermal Treatments and Anaerobic Digestion to Reduce Sewage Sludge Quantity and Improve Biogas Yield, Process Safety and Environmental Protection, Bougrier, C., Delgenes, J. P., and Carrere, H. (2006). Combination of Thermal Treatments and Anaerobic Digestion to Reduce Sewage Sludge Quantity and Improve Biogas Yield, Process Safety and Environmental Protection, 84(B4), pp. 280-284., Vol. 84, No. B4, pp. 280-284

(2015), The Impact of Sludge Pre-Treatments on Mesophilic and Thernophilic Anaerobic Digestion Efficiency : Role of the Organic Load, Chemical Engineering Journal, Braguglia, C. M., Gianico, A., Gallipoli, A., and Mininni, G. (2015). The Impact of Sludge Pre-Treatments on Mesophilic and Thernophilic Anaerobic Digestion Efficiency : Role of the Organic Load, Chemical Engineering Journal, 270, pp. 362-271., Vol. 270, pp. 362-271

(2009), Direct Biological Conversion of Electrical Current into Methane by Electromethanogenesis, Environment Science Technology, Cheng, S., Xing, D., Call, D. F., and Logan, B. E. (2009). Direct Biological Conversion of Electrical Current into Methane by Electromethanogenesis, Environment Science Technology, 43(10), pp. 3953-3958., Vol. 43, No. 10, pp. 3953-3958

(1995), Standard Methods for the Examination of Water and Wastewater, Franson, M. A. H., Eaton, A. D., Clesceri, L. S., and Greenberg, A. E. (1995). Standard Methods for the Examination of Water and Wastewater, Franson, M. A. H., 19th Edition, American Public Health Association, Washington.

(2013), Bioelectrochemical Enhancement of Hydrogen and Methane Production from the Anaerobic Digestion of Sewage Sludge in Single-Chamber Membrane-Free Microbial Electrolysis Cells, International Journal of Hydrogen Energy, Guo, X., Liu, J., and Xiao, B. (2013). Bioelectrochemical Enhancement of Hydrogen and Methane Production from the Anaerobic Digestion of Sewage Sludge in Single-Chamber Membrane-Free Microbial Electrolysis Cells, International Journal of Hydrogen Energy, 38(3), pp. 1342-1347., Vol. 38, No. 3, pp. 1342-1347

(2006), Enhancement Effect of High Intensity Ultrasound on the Anaerobic Digestion of Waste Sludge from Municipal Wastewater Treatment Plant., Ha, B. Y. (2006). Enhancement Effect of High Intensity Ultrasound on the Anaerobic Digestion of Waste Sludge from Municipal Wastewater Treatment Plant, Doctorate thesis, Dankook university. pp. 1-2. [Korean Literature], pp. 1-2

(2004), Digestion of Sludge and Organic Waste in the Sustainability Concept for Malmö Sweden, Water Science and Technology, Jansen, J., La, C., Gruvberger, C., Hanner, N., Aspegren, H., and Svard, A. (2004). Digestion of Sludge and Organic Waste in the Sustainability Concept for Malmö, Sweden, Water Science and Technology, 49, pp. 163., Vol. 49, pp. 163

(2013), Practical Implementation of Microbial Fuel Cells for Bioelectrochemical Wastewater Treatment, Journal of the Korean Society of Urban Environment, Jung, S. H. (2013). Practical Implementation of Microbial Fuel Cells for Bioelectrochemical Wastewater Treatment, Journal of the Korean Society of Urban Environment, 13(2) pp. 93-100., Vol. 13, No. 2, pp. 93-100

(1990), Early Stage in Biofilm Development in Methanogenic Fluidized Bed Reactors, Applied Microbiology Biotechnology, Lauwers, A. M., Heinen, W., Leon, G. M., and Chris van der Drift. (1990). Early Stage in Biofilm Development in Methanogenic Fluidized Bed Reactors, Applied Microbiology Biotechnology, 33, pp. 352-358., Vol. 33, pp. 352-358

(2014), Comparison of Nonprecious Metal Cathode Materials for Methane Production by Electromethanogenesis, ACS Sustainable Chemistry & Engineering, Logan, B. E., Siegert, M., Matthew, D. Y., Douglas, F. C., Zhu, X., and Spormann, A. (2014). Comparison of Nonprecious Metal Cathode Materials for Methane Production by Electromethanogenesis, ACS Sustainable Chemistry & Engineering, 2, pp. 910-917., Vol. 2, pp. 910-917

(2005), Biomethanization of the Organic Fraction of Municipal Solid Wastes, Water Intelligence Online. 4., Mata-Alvarez, J. (2005). Biomethanization of the Organic Fraction of Municipal Solid Wastes, Water Intelligence Online. 4.

(2013), Statistics of Sewerage, (Sewarage division), Ministry of Environment (MOE). (2013). Statistics of Sewerage, (Sewarage division), Ministry of Environment, pp. 1397-1423., pp. 1397-1423

(2014), Performance and Bacterial Enrichment of Bioelectrochemical Systems During Methane and Acetate Production, International Journal of Hydrogen Energy, Nikolaos, X. and Valeria, M. (2014), Performance and Bacterial Enrichment of Bioelectrochemical Systems During Methane and Acetate Production, International Journal of Hydrogen Energy, 39(36), 99. 21864-21875., Vol. 39, No. 36, pp. 21864-21875

(1974), Temperature Effects on Anaerobic Fermentation of Domestic Refuse, Biotechnology and Bioengineering, Pfeffer, J. T. (1974), Temperature Effects on Anaerobic Fermentation of Domestic Refuse, Biotechnology and Bioengineering, 16(6), pp. 771-787., Vol. 16, No. 6, pp. 771-787

(1996), Anaerobic Biotechnology for Industrial Waste Waters, Anaerobic Biotechnology, Speece, R. E. (1996). Anaerobic Biotechnology for Industrial Waste Waters, Anaerobic Biotechnology, 17, pp. 985-988., Vol. 17, pp. 985-988

(2015), Characterization of Methane Production and Microbial Community Shifts During Waste Activated Sludge Degradation in Microbial Electrolysis Cells, Bioresource Technology, Sun, R., Zhou, A., Jia, J., Liang, Q., Liu, Q., Xing, D., and Ren, Z. (2015). Characterization of Methane Production and Microbial Community Shifts During Waste Activated Sludge Degradation in Microbial Electrolysis Cells, Bioresource Technology, 175, pp. 68-74., Vol. 175, pp. 68-74

(2009), Source of Methane and Methods to Control its Formation in Single Chamber Microbial Electrolysis Cells, International Journal of Hydrogen Energy, Wang, A., Liu, W., Cheng, S., Xing, D., Zhou, J., and Logan, B. E. (2009). Source of Methane and Methods to Control its Formation in Single Chamber Microbial Electrolysis Cells, International Journal of Hydrogen Energy, 34(9), pp. 3653-3658., Vol. 34, No. 9, pp. 3653-3658

(2010), Reduced Internal Resistance of Microbial Electrolysis Cell as Factor of Configuration and Stuffing with Granular Activated Carbon, International Journal of Hydrogen Energy, Wang, A., Liu, W., Ren, N., Cheng, H., and Lee, D. J. (2010). Reduced Internal Resistance of Microbial Electrolysis Cell as Factor of Configuration and Stuffing with Granular Activated Carbon, International Journal of Hydrogen Energy, 35(24), pp. 13448-13492., Vol. 35, No. 24, pp. 13448-13492

(2013), Enhanced Anaerobic Digestion of Organic Contaminants Containing Diverse Microbial Population by Combined Microbial Electrolysis Cell (MEC) and Anaerobic Reactor under Fe(III) Reducing Conditions, Bioresource Technology, Zhang, J., Zhang, Y., Quan, X., Chen, S., and Afzal, S. (2013). Enhanced Anaerobic Digestion of Organic Contaminants Containing Diverse Microbial Population by Combined Microbial Electrolysis Cell (MEC) and Anaerobic Reactor under Fe(III) Reducing Conditions, Bioresource Technology, 136, pp. 273-280., Vol. 136, pp. 273-280

(1996), Thermophilic/Mesophilic Digestion of Sewage Sludge and Organic Wastes, Environmental Science and Engineering and Taxicology, Zhao, Q. and Kugel, G. (1996). Thermophilic/Mesophilic Digestion of Sewage Sludge and Organic Wastes, Environmental Science and Engineering and Taxicology, 31(9) pp. 2211-2231., Vol. 31, No. 9, pp. 2211-2231

(2014), Bioelectrochemical Enhancement of Anaerobic Methano-genesis for High Organic Load Rate Wastewater Treatment in a Up-Flow Anaerobic Sludge Blanket(UASB) Reactor, Nature Reviews Cardiology, Zhao, Z., Zhang, Y., Chen, S., Quan, X., and Yu, Q. (2014). Bioelectrochemical Enhancement of Anaerobic Methano-genesis for High Organic Load Rate Wastewater Treatment in a Up-Flow Anaerobic Sludge Blanket(UASB) Reactor, Nature Reviews Cardiology, 4, pp. 6658., Vol. 4, pp. 6658