By Anil K. Pabby, Syed S.H. Rizvi, Ana Maria Sastre Requena
The Handbook of Membrane Separations: Chemical, Pharmaceutical, nutrition, and Biotechnological purposes, moment Edition offers distinctive details on membrane separation applied sciences from a world crew of specialists.
The instruction manual fills an incredible hole within the present literature via supplying a complete dialogue of membrane purposes within the chemical, nutrition, pharmaceutical, and biotechnology industries in addition to within the therapy of poisonous business effluents.
This revised moment variation has been up-to-date and increased with discussions of latest membrane items and techniques and novel functions in engineering, existence sciences, and effort conversion.
It additionally comprises new chapters within the box of membrane technological know-how and expertise masking fresh advances in RO and UF, ionic drinks, nanotechnology, roles of membrane in strength new release, updates on gas cells, new membrane extraction configuration, and different very important themes.
The guide is both fitted to the newcomer to the sphere because it is for procedure engineers and learn scientists (membranologists/membrane specialists) who're drawn to acquiring extra complex information regarding particular purposes. It presents readers with a accomplished and well-balanced assessment of the current country of membrane technology and expertise.
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Extra resources for Handbook of membrane separations : chemical, pharmaceutical, food, and biotechnological applications
125]. A rectangular contactor was also suggested in Ref. . A tubular hollow ﬁber membrane contactor of parallel-ﬂow design, with special spacers on shell side to reduce ﬂow channeling, was disclosed in Ref. . A radial-ﬂow transverse-ﬂow membrane contactor without any ﬂow-directing bafﬂe was shown in Ref. . In some applications, particularly in degassing processes using deep vacuum, it has been shown that presence of ﬂow-directing bafﬂe such as claimed in Ref.  could actually be detrimental to performance because of internal diffusion in the gas phase.
Hollow ﬁber diameters are dOUT and dIN. The term H is the Henry coefﬁcient (liquid–gas equilibrium constant) for the species in question. 2 should be replaced by mD, the equilibrium distribution coefﬁcient between tube side liquid and shell side liquid. The membrane transfer coefﬁcient kM is a function of (1) the diffusion coefﬁcient in the phase occupying membrane pores and (2) various membrane geometric parameters. Assuming pure Fickian diffusion in a symmetric microporous membrane, kM can be shown as  kM ¼ 2D«M t M ðdOUT À dIN Þ (2:3) where D is diffusivity in the pore phase «M and tM are membrane porosity and tortuosity factors, functions of the membrane morphology In case of complex membrane morphology such as asymmetric or composite membranes, or when Fickian diffusion is not valid, evaluating kM will be more complex.
30. 31. 32. 33. 34. 35. 36. 37. 38. 39. 40. 41. 42. 43. 44. 45. 46. 47. 48. 2008 12:56pm Compositor Name: BMani 21 Yang MC and Cussler EL, Artiﬁcial gills, Journal of Membrane Science 1989, 42, 273–284. Baurmeister U and Pelger M, Device for separating gas bubbles from ﬂuids, US Patent 4,828,587, 1989. Kirsch CFE and Reed BW, Device for removal of gas bubbles and dissolved gasses in liquid, US Patent 6,503,225, 2003. Robinson JR, New developments in hollow ﬁber diffusional gas transfer for bioreactors.