Preface. 1: Membranes in Biotechnology. Membrane Processes in Biotechnology: an Introduction; G. Belfort. Biotechnology Processes: Membrane Materials, Modules and Process Design; G. Belfort, C.A. Heath. Fouling and Concentration Polarisation in Ultrafiltration and Microfiltration; P. Aimar, M. Meireles, P. Bacchin, V. Sanchez. Cross-Flow Filtration of Biological Suspensions; K.H. Kroner. Affinity Membranes in Bioseparations; E. Klein. Cross-Flow Application of Affinity Membranes; K.H. Kroner. New Developments in Membrane Bioreactors; G. Belfort, C.A. Heath. Enzyme Membrane Reactors; G. Iorio, V. Calabro, S. Todisco. Integration of Fermentation and Membrane Processes; J.G. Crespo, M. Carrondo. Recovery of Volatile Bioproducts by Pervaporation; K.W. Boeddeker. Novel Hollow Fiber Applications in Medicine and Biotechnology; F.-J. Gerner. 2: Membranes in Environmental Technology. The Use of Membrane Processes in Environmental Problems. An Introduction; M. Mulder. Membrane Pressure Driven Processes in Water Treatment; P. Aptel. Pervaporation: Removal of Organics from Water and Organic/Organic Separations; J.G. Wijmans, R.W. Baker, A.L. Athayde. Description of Facilitated Transport and Environmental Applications; R.D. Noble, J.D. Way. Membrane Gas Absorption Processes in Environmental Applications; A.E. Jansen, R. Klaassen, P.H.M. Feron, J.H. Hanemaaijer, B.Ph. ter Meulen. Separation of Organic Vapors from Air with Membranes; K.-V. Peinemann, K. Ohlrogge. 3: New Concepts. Hollow Fiber Contactors; E.L. Cussier. Membrane Assisted Affinity Separations: Some Techniques and Applications;J.T.M. Sluys, H.W. Bakkenes, R.J.M. Creusen, L.H.J.M. Schneiders, J.H. Hanemaaijer. Membrane Reactors for Partial Oxidation and Dehydrogenation Reactions; K. Keizer, V.T. Zaspalis, R.S.A. De Lange, M.P. Harold, A.J. Burggraaf. Membrane Reactors for Partial Oxidation and Dehydrogenation Reactions; L. Cot, C. Guizard, A. Julbe, A. Larbot. 4: Energy Requirements. Energy Requirements in Membrane Separation Processes; M. Mulder. 5: Education. Education on Membrane Science and Technology; C.S. Slater. Index.