Research Abstracts

The filtration tests of electrolyte solutions performed with different ceramic membranes show that salt rejection depends on pH, salt nature and concentration. A simple correlation between streaming potential and rejection rates exits and confirms that streaming potential is a relevant parameter to

Rates of Cu++ removal from waste solutions by cementation on a perforated reciprocating zinc disc were studied under different conditions of frequency and amplitude of oscillation. Disc pulsation was found to increase the rate of cementation by a factor ranging from 2.8 to 5.5 compared to cementatio

This work presents a new method, called heuristic selection (HS), to process algebraic equation systems (AEs). These systems are part of all chemical processes models that respect the state space models form. For given AEs, the proposed method produces a set of decision variables, a set of subsystem

This work outlines the development of a fault diagnostic system to supervise a MSF desalination plant during dynamic states (e.g., start-up and changes of operative conditions) using artificial neural networks (ANNs). This diagnostic system processes the plant data to determine whether the process s

This work outlines the development of a fault diagnostic system to supervise a desalination plant MSF during dynamic states (e.g., start-up and changes of operative conditions) using a real-time expert system. This diagnostic system processes the plant data to determine whether the process state dur

The performance of a newly designed solar air plate collector was investigated. A comparison between indoor and outdoor results of the experiments are presented. Graphs of collector efficiency for different operating conditions were established. Solar irradiation intensity, airflow rate and wind vel

Lead is a highly toxic heavy metal, found in water and air, which should be treated. Lead removal from wastewater is an important problem in battery industries. The separation process by means of electrodialysis (ED) shows several advantages such as highly selective desalination, high water recovery

An investigation of wastewater treatment by ultrafiltration (UF) is introduced. In the experiments a UF membrane (UFPHT20-6338) and samples of Behshahr Ind. Co. wastewater as feed were used. The effect of operating conditions such as pressure difference, cross flow velocity, shear stress, temperatur

The main problem in treating oil in water emulsions by membrane technologies is fouling caused by oil adsorption on the membrane surface. Among these technologies, microfiltration has been used in many fields of oil–water emulsions. The effect of operating conditions on a microfilter (home made) wit

This paper presents an experimental and theoretical study of a pad humidifier used in a new multi-stage solar desalination process in operation in Tunisia. The experimental operation of the humidifier is presented in terms of temperature, relative and absolute humidity, and the quantity of evaporate