Spent coffee grounds (SCG) are industrial biowaste resulting from the coffee-brewing process, and they often underutilized end up in landfills, thereby leading to emission of toxic gases environmental damage. Hydrothermal carbonization (HTC) is an attractive approach valorize wet biomass such as SCG valuable bioproducts (i.e., hydrochar). Thus, this work, HTC was carried out a 500 L stainless s...

Abstract The diffusivity values of C in pure Zr and containing dissolved O (Zr(O)) were determined a temperature range 623–1023 K for 923–1123 Zr(O) from depth profiles obtained by glow-discharge emission spectroscopy. decreased as the concentration increased that 15 at % was two orders magnitude smaller than Zr. One-dimensional numerical calculations Fick’s diffusion equation with Soret effect...

The principle drawbacks of any kind of solid nuclear fuel are listed and briefly analysed in the first part of the paper. On the basis of this analysis, the liquid fuel concept and its benefits are introduced and briefly described in the following parts of the paper allowing to develop new reactor systems for nuclear incineration of spent fuel from conventional reactors and a new clean source o...