Research Abstracts

The design and construction of a new type of assisted solar distiller is presented. The device consists of a basin-type distiller, with the peculiarity that the basin liner is extended as an integrated solar collector accumulator with quite simple characteristics, recently developed at the National

The general overhaul of a high-temperature (112°C) MSF distiller provided the opportunity for the collection and examination of scales formed on the bottom of the first nine flash chambers. These scales were inspected visually and subjected to wet chemical analysis as well as various spectral invest

Based on the Nernst–Planck equations of ion flow, a simple model was proposed for the current–voltage characteristics of an ion-exchange membrane under limiting current density. The numerical analysis depicts the influence of parameters such as solution concentration, diffusion boundary layer thickn

Pillared bentonite, a clean and cost-effective adsorbent with high specific areas of 111.3 m2/g and high basal spacing of 1.98 nm, was prepared for the removal of humic acid from water. It is effective for the removal of humic acid with a high adsorption capacity of 537 mg/g, and adsorption is favor

This laboratory scale study investigated the effectiveness of ultrafiltration (UF) technology for treatment of refinery wastewater using powdered activated carbons (PACs) and coagulant. Flux decline, removal rates of total organic compounds (TOCs) and the possibilities of membrane cleaning during in

The present study compares the fouling properties of two selected and well-characterized hydrophobic (denoted HPOA) and hydrophilic (denoted TPIA) natural organic matters (NOM) fractions with a commercial polyamide (PA) nanofiltration (NF) membrane (denoted NF-55). Analytical tools such as elemental

A systematic approach was followed to optimise pH, temperature and the doses of FeSO4 and H2O2 for Feton’s reagent (FR) to decolourize and detoxify the solutions containing of Remazol Red 120 (RR) dye and its mixture with Remazol Brillant Blue (RB) and Remazol Yellow 84 (RY) reactive dyes. The acute

The sorption of ammonium ions and ammonia by the H+ form of sulphonic acid cation exchangers Amberlite 252, Lewatit 2629 and Relite C 360 from a solution containing NH4NO3 in the range of 0 to 0.214 equ/L and NH3 in the range of 0.353 to 0 equ/L was investigated to establish the possibility of their

Two natural source waters containing natural organic matter (NOM) with different physical and chemical characteristics were dead-end filtered using five types of membranes having different material and geometric properties. In this study retained dissolved organic carbon (DOC) per unit membrane area

Poly(vinylidene fluoride) (PVDF), polymethyl methacrylate (PMMA) and cellulose acetate (CA) in the presence of N-methyl pyrrolidone were blended in various combinations by using dimethylformamide (DMF) and glacial acetic acid (CH3COOH) as solvent and used to prepare flat-sheet membranes by the phase