Research Abstracts

This paper proposes an alternative configuration to conventional reverse osmosis (RO) desalination systems by incorporating the use of gravitational potential energy. The proposal suggests a model that can be viewed as the energy station of a RO desalination plant. Conventionally, RO plants use a hi

The objective of this study was to investigate the ability of natural phosphate (NP) to remove textile dyes from aqueous solutions. The adsorption of methylene blue (MB) as a reference molecule for the adsorption studies of organic molecules, basic yellow 28 (BY 28) and reactive yellow 125 (RY 125)

This paper presents a theoretical analysis of a one step azimuth tracking tilted-wick solar still with a vertical flat plate reflector. The still is assumed to be rotated manually just once a day at southing of the sun. We performed numerical analysis of heat and mass transfer in the still to determ

An analytical approximate solution for the competitive facilitation factor of components A and E across a liquid membrane is developed in the case of instantaneous reactions inside the liquid membranes. This analytical solution solves the dimensionless, nonlinear diffusion-reaction transport problem

The present work summarizes the MED–TVC (multi effect desalination with thermal vapor compression) technique associated with the state of the art of modern desalination. In addition, a computer simulation model for all types of evaporation processes is presented. This program provides engineers with

Limits of water production from atmospheric water vapor are investigated for cases where fresh hot humid air is cooled over evaporator coils of refrigeration machines and then directed to open localized areas. This application may be considered as a source of limited amounts of potable water at a fr

In this paper a general review on different membrane processes and membrane reactors was done. As the main aim of this paper is to review the application of membrane processes in petrochemical industry, processes such as olefin/paraffin separation, light solvent separation, solvent dewaxing, phenol

The drying characteristics of carrots are investigated experimentally and theoretically for different drying conditions. Carrot slices with three different thicknesses are used. Initially, sorption isotherms of the dried carrot slices are determined for different temperatures and equilibrium relativ

The main objective of this work was to determine the impact of various backwash scenarios on fouling in a pilotscale submerged membrane bioreactor (MBR) aerobically treating domestic wastewater. A total of seven different backwash scenarios were tested. The degree of membrane fouling was determined

Sesame seeds contain important proteins like globulin, albumin, prolamine and glutelin. Sesame protein hydrolysate is also thought to be an important source of nutritional supplement. The work in this study was carried out to assess the feasibility of concentrating sesame protein hydrolysate by ultr