Abstract
Objective: This paper describes examples of membrane engineering for water that take inspiration from biology. Next generation, high permeability, desalination membranes incorporating natural Aquaporin water channels are described. A potential consequence of raised flux is boundary layer mass transfer limitation which can be alleviated by unsteady shear stress, such as vibrations, adopted by some aquatic species to improve respiration. In many applications, biofilms on membranes cause detrimental biofouling.
Method: Various triggers, or agents, in the biofilm development cycle are being used to control the fouling by ‘biomimicry’. Conclusion: Beneficial biofilms can also exist on membranes, as exemplified by the gravity-driven biostabilized UF process for water treatment being evaluated as a low energy pretreatment for seawater RO.Keywords: Desalination, aquaporin, membranes, biofilms, water applications, mass transfer.
Graphical Abstract
Call for Papers in Thematic Issues
Catalytic C-H bond activation as a tool for functionalization of heterocycles
The major topic is the functionalization of heterocycles through catalyzed C-H bond activation. The strategies based on C-H activation not only provide straightforward formation of C-C or C-X bonds but, more importantly, allow for the avoidance of pre-functionalization of one or two of the cross-coupling partners. The beneficial impact of ...read more
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