Research Abstracts

The objective of this study was to investigate the removal of phenol from aqueous solution by using acid activated red mud in batch adsorption experiments. The study was carried out as functions of pH, contact time, activated red mud dosage and initial phenol concentration. It was found that the max

The removal of nitrate ions through SB-6407 and Neosepta AMX anion exchange membranes has been studied under Donnan dialysis conditions as a function of receiver phase concentration and co-existence anions in the feed phase. For both membranes, it was observed that the transport of nitrate increased

A supported liquid membrane was prepared by impregnation of commercial microporous polymer film with methyl cholate in cyclohexane and was used to study transport of various sugars. The stability constant and apparent diffusion coefficient of carrier-sugar complex were determined. The absence of a p

The overall dialysis coefficient is a basic characteristic of a continuous dialyzer. Its determination is based on the measurement of concentrations and volumetric liquid flow rates of the streams entering and leaving the dialyzer; generally, all these parameters can be loaded with an experimental e

This paper presents the parametric study of passive and active solar stills integrated with a flat plate collector based on the computer based thermal models. These models are developed based on mass and energy balance equations. The effect of inner and outer glass cover temperatures on the performa

Textile wastewater is commonly treated with activated sludge process technology. However, its treatment performance has not been demonstrated to be very effective. In this study, the effects of micronutrient thiamine on removal efficiencies of dissolved organic carbon (DOC) and chemical oxygen deman

Both a heat pump and solar dryer were designed and manufactured. They were experimentally analyzed by drying apples, and a comparison was made between the two. Apples were sliced 4 mm thick, and dried from 4.8 (g water/g dry matter) moisture content to 0.18 (g water/g dry matter) at 3.3 kg/m2s–2.4 k

The aim of this study is to obtain optimal decolourization conditions for acid blue-7 (AB7) wastewater treatment by Ti/TiO2 photoelectrocatalysis using response surface methodology (RSM). On the basis of a three-variable Box– Behnken design (BBD), RSM was used to determine the effect of pH values (r

A simple and new effective electrochemical method was used prior to reverse osmosis for seawater desalination. The influences of three main factors in electrochemical methods—current density, operating time and sedimentation time on the efficiency of pretreatment—have been investigated. It was shown

The activity of enzymes is considerably affected by the pH of a reaction mixture. If a product of enzymatic reaction changes pH, as in the case of ester hydrolysis, this causes the non-monotonicity of both substrate and product dependent rate expression. This dependence determines the conversion deg