The need to treat wastewater in a sustainable way minimalize contamination and maximize the recovery of nutrients is widelyrecognized. focus mainly on removal because eutrophication problems receiving waters,limitations mining resources high costs affiliated with nutrient production. Removal also growing problemfor water authorities, as authorities often tighten standards discharged waters avoi...

Abstract The traditional view of the conductivity electrolytes is based on mobility ions in an electric field. A new concept water introduces electron–hole mechanism known from semiconductor theory. electrolyte hydrogen bond network imitate structure a doped silicon lattice. source current carriers electrode reaction generating H + and OH − ions. continuity flow provided through mechanism, move...

A d-dimensional zero-one matrix A avoids another d-dimensional zero-one matrix P if no submatrix of A can be transformed to P by changing some ones to zeroes. Let f(n, P, d) denote the maximum number of ones in a d-dimensional n × · · · × n zero-one matrix that avoids P . Fox proved for n sufficiently large that f(n, P, 2) = 2k Θ(1) n for almost all k × k permutation matrices P . We extend this...

Despite steady advances in the technology, desalination remains one of the most expensive ways to produce potable water. But as water scarcity forces communities to find new sources of drinking water, scientists are developing innovations that may soon make desalination a reasonable option for many more communities. The newest approach to desalination is membrane systems, which include reverse ...

In this study, a novel multigeneration system is considered from energy, exergy, and economic points of view. The combined composed biomass gasifier, CO2 cycle, cooling system, multi-effect distillation (MED), electrodialysis was assessed. This integrated produces electricity, cooling, distilled water, sodium hydroxide (NaOH), hydrogen chloride (HCl). A parametric study regarding moisture conte...

Wigner’s little groups are the subgroups of the Lorentz group whose transformations leave the momentum of a given particle invariant. They thus define the internal space-time symmetries of relativistic particles. These symmetries take different mathematical forms for massive and for massless particles. However, it is shown possible to construct one unified representation using a graphical descr...