Conventional flighted rotary drums usually have flights parallel to the rotating axis, which cannot facilitate axial motion of materials in drum. Here, a new type horizontal drum with inclined and beads was designed. Inclined are used movement material, while as fillers increase gas-liquid contact area crush solid materials. We simulated studied using discrete element method (DEM). To improve m...

Egyptian clover (Trifolium alexandrinum) is the main and oldest cultivated winter forage leguminous crop in Egypt. It occupies about one third of area with average 1.63 million Feddan (Feddan= 4200 m2 ). With an estimated productivity 42.03 tons green fodder [7]. In last years, mower conditioner machine used Egypt to cutting crops. The mean objectives current research were evaluated new wear bl...

The aim of this paper was to study the effect of five different waste combinations (C/N 15, C/N 20, C/N 25, C/N 30, and control) of sewage sludge coupled with sawdust and cattle manure in a pilot scale rotary drum reactor, during 20 days of the composting process. Our results showed that C/N 30 possesses a higher temperature regime with higher % reduction in moisture content, total organic carb...

During combustion of solid fuels in the material inlet end of cement rotary kilns, local reducing conditions can occur and cause decomposition of sulfates from cement raw materials. Decomposition of sulfates is problematic because it increases the gas-phase SO2 concentration, which may cause deposit formation in the kiln system. SO2 release from cement raw materials during combustion of solid f...

Bimbo – Ricolino candy manufacturing plant in Mexico City was discharging wastewater with high amount of fats oil and grease and dissolved sugars. Local regulatory agency requested that suspended solids, oil and grease and dissolved BOD be almost completely removed prior to discharge to municipal plant. The available real estate in Mexico City was very limited. A multistep treatment system was ...