Research Abstracts

The occurrence of emerging or newly identified contaminants in our water resources is of continued concern for the health and safety of consuming public. The existing conventional water treatment plants were not designed for these unidentified contaminants. The endocrine disrupting chemicals (EDCs)

Two series of novel hydrogels consisting of different molar ratios of monomers were prepared for specialty applications as sorbents for some common metal ions. The hydrogels, comprising acrylamide (AAm) and 2hydroxyethyl methacrylate (HEMA), were prepared in a 1:1 water–acetone solvent system using

Empirically derived parameters and analytical solutions were used to determine possible mechanistic processes of organo-macromolecular fate in dead-end hyperfiltration at abnormal hydraulic pressure settings. Ideally the concentration polarization is assumed to have an ideal geometry but this may no

Economical progress and increase in population result in an increase of sewage and wastewaters containing heavy metal ions. The ion exchange method is applied for removal of toxic metal ions and organic pollutants from drinking, underground and surface waters and also from industrial wasterwaters pr

Due to the limited fossil fuel energy resources and the almost fully utilized hydro energy, Egypt has been considering for sometime the various options for satisfying the increasing demand for electricity, including nuclear energy. At the same time, Egypt is largely dependent on the River Nile for t

Experimental studies have been made on the sorption and diffusion of selected carboxylic acids—acetic acid (AA), lactic acid (LA), oxalic acid (OA) and tartaric acid (TA)—in a strongly basic polymeric membrane NeoseptaAMH at 25°C. The sorption experiments have revealed that the partition coefficient

The behavior of various iron species (e.g. ferrous, prehydrolyzed(ph)-ferrous ion and ferric ion) as a coagulant and effects of inert mineral on the coagulation process combined with direct microfiltration (MF) membrane process was studied for humic acid (HA) removal. When 0.01 mM to 1 mM of the var

The effectiveness of ultrasonic irradiation on algae removal by coagulation was studied. Laboratory results suggest that ultrasonic treatment at 40 kHz and 60W for 15 s can improve algae coagulation removal by 12.4% as compared with direct coagulation. A photometric dispersion analyzer was employed

The effect of pH, biosolid dosage, initial copper concentration, and contact time on copper removal from aqueous solutions using biosolids (waste sludge cake) was investigated through batch experiments. The copper removal increased by time and initial metal concentrations. The equilibrium time was a

We developed a real-time aerosolization method combined with membrane filtration technique to determine size and number of dissolved and suspended colloid nanoparticles in water. Feed water before and after being treated by MF, UF or NF membranes was in-situ aerosolized and dried, and size and numbe