EP1894893-A1  See also references of WO 2006117934A1US8043505-B2  English language translation of Office Action dated Jul. 31, 2009 in corresponding Chinese Application No. 200680014592.6.;  Neyens, E. et al., "A review of thermal sludge pre-treatment processes to improve dewaterability", Journal of Hazardous Materials, 2003, pp. 51-67.;  Weemaes, Marjoleine P.J., et al., "Evaluation of Current Wet Sludge Disintegration Techniques", Centre for Environmental Sanitation, University Ghent, Ghent, Belgium, Jun. 12, 1998.;  Walley, Paul, "Optimising Thermal Hydrolysis for Reliable High Digester Solids Loading and Performance", 12th European Biosolids and Organic Resources Conference, 2007.;  CH2MHill and Itron, Task 2.2.1 Final Report prepared for the California Energy Commission, "Commonwealth Energy Biogas/PV Mini-Grid Renewal Resources Program, Making Renewables Part of an Affordable and Diverse Electric System in California, Contract No. 500-00-036, Process Selection Report for Wastewater Treatment Plants, Project No. 2.2 Enhanced Energy Recovery Through Optimization of Anaerobic Digestion and Microturbines", Aug. 2003.;  Kelly, Harlan G., "Emergy Processes in Biosolids Treatment, 2005", Journal of Environmental Engineering and Science, May 2006.US8551337-B2  Neyens, E. et al., "A review of thermal sludge pre-treatment processes to improve dewaterability", Journal of Hazardous Materials, 2003, pp. 51-67.;  Weemaes, Marjoleine P.J., et al., "Evaluation of Current Wet Sludge Disintegration Techniques", Centre for Environmental Sanitation, University Ghent, Ghent, Belgium, Jun. 12, 1998.;  Walley, Paul, "Optimising Thermal Hydrolysis for Reliable High Digester Solids Loading and Performance", 12th European Biosolids and Organic Resources Conference, 2007.;  CH2MHill and Itron, Task 2.2.1 Final Report prepared for the California Energy Commission, "Commonwealth Energy Biogas/PV Mini-Grid Renewal Resources Program, Making Renewables Part of an Affordable and Diverse Electric System in California, Contract No. 500-00-036, Process Selection Report for Wastewater Treatment Plants, Project No. 2.2 Enhanced Energy Recovery Through Optimization of Anaerobic Digestion and Microturbines", Aug. 2003.;  Kelly, Harlan G., "Emergy Processes in Biosolids Treatment, 2005", Journal of Environmental Engineering and Science, May 2006.;  English language translation of Office Action dated Jul. 31, 2009 in corresponding Chinese Application No. 200680014592.6.