Species separation can be produced by imposing a pressure gradient in gaseous mixtures, which induces different molecular velocities depending on the molar weight. Pressure gradients can be achieved by centrifugal forces ...

This research aimed to evaluate the biogas production during the anaerobic biodigestion process of dairy cattle manure, with and without solids separation. Sixteen biodigesters of the batch type were used, each one with ...

Composites of montmorillonite (MMT) and polyaniline (PANI) were synthetized through a facile and inexpensive method. Two samples with different MMT:PANI ratios were studied and deeply characterized by XRD, TG, zeta potential, ...

Previously, we reported that Ag-ETS-10 can be used to separate air, and produce argon free oxygen. It was reported that high purity oxygen (99+%) was generated using a bed of Ag-ETS-10 granules to separate air (78.0% N2, ...

This paper describes the synthesis and characterization of p-aminobenzoic modified cellulose (Cell-PAB), as well as the separation and preconcentration of Cd(II), Cu(II), Ni(II), Pb(II) and Zn(II) ions from an aqueous ...

Brazil's natural gas reserve amounts to approximately 0.4 trillion cubic meters. It is one of the biggest in volume in the American Continent. Its extraction in Brazilian territory is concentrated in the Pre-Salt area, an ...