Due to recent improvement in computer hardware, application of numerical technologies are paid attention in design of industrial powder processes. Although the discrete element method (DEM) is well known as a standard approach in the granular flow simulation, it has not been established from a viewpoint of the industrial application. In order to utilize the DEM in actual powder processes, several novel models were developed recently. State-of-the-art DEM simulation and its industrial applications are described in this paper.
In this review article, the authors delineate the state-of-the-art in studies on the modeling for accurately describing membrane pore blocking which is recognized as one of the major causes of “membrane fouling”, thereby leading to a dramatical flux decline or pressure rising with the progress of filtration. The paper gives an overview of more realistic models developed on the basis of the blocking filtration law which has been applied to classical particulate filtration over the years. The review may provide important insights into pore blocking phenomena governing the membrane fouling behaviors during membrane filtration of colloids.
The size and size distribution of nanoparticles are important in various fields of nanotechnology. Since most wet synthesis procedures yield polydispersed particles, effective purification and separation techniques are required. This review classified the proposed separation techniques for nanoparticles from traditional separation science (filtration, chromatography, extraction) to nanoscale specific phenomena (field-flow fractionation, size selective precipitation).
Powder Electrostatics: Theory, Techniques and Applications
May 30, 2014 | Volume 19 Pages 34-45
Mixing and Segregation in Powders: Evaluation, Mechanisms and Processes
March 29, 2014 | Volume 27 Pages 3-17