WO2006137808-A1  CURCIO E. AND DRIOLI E.: 'Membrane Distillation and Related Operations - A Review' SEPARATION AND PURIFICATION vol. 34, 2005, pages 35 - 86;  CURCIO E. AND DRIOLI E.: 'Membrane Distillation and Related Operations - A Review' SEPARATION AND PURIFICATION vol. 34, 2005, pages 35 - 86, XP009071878;  GRYTA M. ET AL.: 'Ethanol Production in Membrane Distillation Bioreactor' CATALYSIS TODAY vol. 56, 2000, pages 159 - 165;  GRYTA M. ET AL.: 'Ethanol Production in Membrane Distillation Bioreactor' CATALYSIS TODAY vol. 56, 2000, pages 159 - 165, XP003018790;  GRYTA M.: 'The Fermentation Process Integrated with Membrane Distillation' SEPARATION AND PURIFICATION vol. 24, 2001, pages 283 - 296;  GRYTA M.: 'The Fermentation Process Integrated with Membrane Distillation' SEPARATION AND PURIFICATION vol. 24, 2001, pages 283 - 296, XP003018789;  TOMASZEWSKA M.: 'Membrane Distillation - Example of Applications in Technology and Environmental Protection' POLISH JOURNAL OF ENV. STUDIES vol. 9, no. 1, 2000, pages 27 - 36;  TOMASZEWSKA M.: 'Membrane Distillation - Example of Applications in Technology and Environmental Protection' POLISH JOURNAL OF ENV. STUDIES vol. 9, no. 1, 2000, pages 27 - 36, XP003018791;  CICEK N.: 'A Review of Membrane Bioreactors and Their Potential Application in the Treatment of Agricultural Wastewater' CANADIAN BIOSYSTEMS ENGINEERING vol. 45, no. 6, 2003, pages 37 - 49;  CICEK N.: 'A Review of Membrane Bioreactors and Their Potential Application in the Treatment of Agricultural Wastewater' CANADIAN BIOSYSTEMS ENGINEERING vol. 45, no. 6, 2003, pages 37 - 49, XP003018792;  No relevant documents disclosed;  See also references of EP 1909948A1EP1909948-A1  GRYTA M: "The assessment of microorganism growth in the membrane distillation system" DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 142, no. 1, 20 January 2002 (2002-01-20), pages 79-88, XP004351080 ISSN: 0011-9164;  SUVILAMPI J., RINTALA J.: "Thermophilic aerobic wastewater treatment, process performance, biomass characteristics and effluent quality" REVIEWS IN ENVIRONMENTAL SCIENCE AND BIOTECHNOLOGY, vol. 2, 2003, pages 35-51, XP002531766;  See also references of WO 2006137808A1EP1909948-B1  GRYTA M: "The assessment of microorganism growth in the membrane distillation system" DESALINATION, ELSEVIER, AMSTERDAM, NL, vol. 142, no. 1, 20 January 2002 (2002-01-20), pages 79-88, XP004351080 ISSN: 0011-9164;  SUVILAMPI J., RINTALA J.: "Thermophilic aerobic wastewater treatment, process performance, biomass characteristics and effluent quality" REVIEWS IN ENVIRONMENTAL SCIENCE AND BIOTECHNOLOGY, vol. 2, 2003, pages 35-51, XP002531766;  GRYTA M.: 'The Fermentation Process Integrated with Membrane Distillation' SEPARATION AND PURIFICATION vol. 24, 2001, pages 283 - 296, XP003018789;  GRYTA M. ET AL.: 'Ethanol Production in Membrane Distillation Bioreactor' CATALYSIS TODAY vol. 56, 2000, pages 159 - 165, XP003018790;  CURCIO E. AND DRIOLI E.: 'Membrane Distillation and Related Operations - A Review' SEPARATION AND PURIFICATION vol. 34, 2005, pages 35 - 86, XP009071878;  TOMASZEWSKA M.: 'Membrane Distillation - Example of Applications in Technology and Environmental Protection' POLISH JOURNAL OF ENV. STUDIES vol. 9, no. 1, 2000, pages 27 - 36, XP003018791;  CICEK N.: 'A Review of Membrane Bioreactors and Their Potential Application in the Treatment of Agricultural Wastewater' CANADIAN BIOSYSTEMS ENGINEERING vol. 45, no. 6, 2003, pages 37 - 49, XP003018792