The effects of greenhouse gases (GHG) on the growth of global warming, and increase of GHG and air pollutant emissions for energy production have forced the need of energy recovery which is normally wasted in industrial plant. The present research work focused on the GHG and air pollutant emissions reduction employing pressure waste energy recovery. Pressure break-down via Joule-Thomson valve i...

The United States Environmental Protection Agency has estimated that about 4.3 million metric tons of medical/hospital wastes are generated annually in the United States, of this approximately 60% comes directly from hospitals. The other 40% are generated by such facilities as laboratories, physicians offices, dental offices, veterinarian clinics, funeral homes and care facilities, just to name...

This paper shows that for 24 out of 25 solid waste materials, recycling saves more energy than is generated by incinerating mixed solid waste in an energy-from-waste facility. Recycling conserves energy that would otherwise be expended extracting virgin raw materials from the natural environment and transforming them to produce goods that can also be manufactured from recycled waste materials. ...

This study aims to evaluate energy, economic, and environmental performances of seven categories of biodiesel feedstocks by using the mixed-unit input-output life cycle assessment method. Various feedstocks have different environmental performances, indicating potential environmental problem-shift. Jatropha seed, castor seed, waste cooking oil, and waste extraction oil are preferred feedstocks ...

A highly efficient and convenient procedure for the enantioselective synthesis of (S)-Rivastigmine tartrate, a cholinergic agent for the treatment of mild to moderate dementia of the Alzheimer’s disease, is accomplished by the treatment of versatile, readily accessible N-Ethyl-N-methyl carbamoyl chloride with 3-hydroxyacetophenone under ultrasonic irradiation in presence of nano-K2CO3 were repo...

Cover illustration left: Detail of a spent nuclear fuel pellet showing radial cracks and the adjacent Zircaloy cladding. middle: Quantum chemical calculation of the incorporation of selenite into the calcite (104) surface. right: SEM image of Y(OH) 3 nanoparticles precipitated on a calcite cleavage surface. with its 1100 employees is one of the largest energy research centers in Europe. It bund...