Abstract Rapid urbanisation and industrialisation have imposed great environmental impact due to the discharge of oily wastewater oil spill incidents. The application superhydrophobic superoleophilic surfaces in oil/water separation (OWS) has attracted much attention their high selectivity which leads efficiency OWS. Herein, a fluorine-free cotton fabric filter was prepared by loading SiO 2 ont...

This research aims to simulate a gravity flow fractionation—the process to fractionate erythrocytes through gravitational field using ANSYS simulation software. A particular microfluidic channel was designed as a separation device. The gravitational equilibrium conditions of the erythrocytes and gravitational field as the parameters were chosen, then deriving the erythrocytes’ path through nume...

Four-dimensional quantum gravity is a complex theory due to the unboundedness of the pure gravitational action, its non-renormalizability and non-polynomial nature 1. We will concentrate here on the simplicial formulation of quantum gravity also known as Regge calculus (for a review, see refs. 2,3). One of the advantages of the approach lies in the fact that it can be formulated in any space-ti...

An iterative numerical technique has been developed to simulate in detail the dynamics of a shallow-layer gravity settler. Currently acknowledged models apply only to specific equipments at steady-state and laboratory scale [Jeelani SAK, Hartland S. The continuous separation of liquid/liquid dispersions. Chem Eng Sci 1993;48(2):239–54]. To our knowledge, no study has ever addressed the dynamic ...

An analytical MHD model of a normal-polarity prominence with com-pressible flow is presented. The exact solution is constructed via a systematic nonlinear separation of variables method used to calculate several classes of MHD equilibria in Cartesian geometry and uniform gravity. Although the model is 2D, a third magnetic/velocity vector field component is included and the highly sheared fields...

Several methods to recycle the top-cut scrap generated during directional solidification of solar silicon are currently being researched. One of these is particle removal by gravity sedimentation. However, natural settling of inclusions by gravitational forces is a slow process and not attractive to industry. This study investigated the sedimentation of micrometer size inclusions (≤ 10 μm) from...

Conventional gravity separation process of iron mineral fines is not very effective. In present work Multi Gravity Separation (MGS) process has been studied. This study was performed on a low-grade iron ore namely goethiticlateritic ore (GLO) from Eastern India. Detailed mineralogical, physical and chemical characteristics of a goethiticlateritic iron ore showed that the sample contained porous...