The article deals with reactions occurring under the action of active particles formed during flash a corona electric discharge between solid electrode and surface liquid – electrochemical without an electrode. Reactions take place in thin layer water, where there are no electrodes, so called electrodeless. electrodes used only to excite reaction zone do not directly participate reaction. oxida...

The recovery of metals from discarded mobile phones has been interest due to its environmental and economic benefits. This work presents a simple effective approach for leaching copper (Cu) the printed circuit boards by combining ultrasound ozone approaches. X-ray diffraction (XRD) technique Fourier-transform infrared spectroscopy (FT-IR) were used characterize solid phases, inductively coupled...

Here, valuable elements in Talet Seleim, Southwestern, Sinai, Egypt was leaching using methanesulfonic acid (MSA) as an environmental-friendly and ecofriendly lixiviant agent. The effects of methane sulfonic concentration, time reaction, temperature, liquid/solid ratio (L/S) stirring speed on dissolution MSA were studied. optimized conditions for various metals were: concentration; 150g/L, time...

UNLABELLED The medical literature states that solid gastric-emptying studies are more sensitive for the detection of gastroparesis than are liquid studies; thus, liquid studies are rarely required. However, we have seen patients with normal solid but delayed liquid emptying. The purpose of this investigation was to determine whether a study of clear liquid gastric emptying has added value for t...

Subject to a compressive membrane force, a solid film on a liquid layer may form wrinkles. When the solid film is very thin, surface stresses contribute to the membrane force. When the liquid layer is very thin, the two interfaces bounding the liquid interact with each other through forces of various physical origins. We formulate the free energy of the solid-on-liquid structure, and carry out ...

Background Used paper is particularly attractive as feedstock for bioethanol production because it is readily available [1]. The aim this work was to hydrolyze used office paper with dilute sulfuric acid for bioethanol production by three industrial strains of Saccharomyces cerevisiae. Acid concentration, time of the hydrolyze and ratio solid: liquid were varying according to factorial design. ...

Microcrystalline cellulose (MCC) samples pretreated by ionic liquid (ILs)H2O mixtures were studied for application in a pyrolysis process. A 1-ethyl3-methylimidazolium methanesulfonate [Emim][MeSO3]-H2O mixture with solid acid catalyst NafionNR50 was used in the pretreatment process. A lower amount of hydrogen bonding between neighboring pretreated MCC chains resulted from a less ordered cellul...