Research Abstracts

Seawater desalination via air humdification–dehumidification has been recently proposed for incorporation into agricultural greenhouses to produce fresh water while maintaining suitable environment for crop growth in hot coastal regions. Dehumidification by cooling the moist (humidified) air is the

A mass transfer coefficient determination method, based on the velocity variation method, is developed for pressure-driven membrane modules with large membrane area and high recovery rates. The method was used to measure mass transfer coefficients in the nanofiltration spiral-wound module Filmtec NF

Treatability study of effluent from textile common effluent treatment plant (CETP) was performed in a laboratory scale three compartments electrodialysis system. The studies were done in batch, batch recirculation and continuous mode of operations in a constant current mode to optimise the current den

In this work, a number of comparisons for Multi Effect Evaporation (MEE) and hybrid Multi Effect Evaporation— Multi Stage Flash (MEE-MSF) systems are performed using the exergy and thermoeconomic analysis. The comparison is performed based on the same platform and working under the same operating co

Studies have been performed on removal of fluoride from Moroccan groundwater by electrodialysis in continuous operation using a pilot plant. The performances of two anion exchange membranes were compared. An optimisation of electrodialysis operation was carried out for various experimental condition

0.04 0.03 50°C 0.02 20°C 0.01 0°C 0.00 Pressure [bar] Fig. 1.

In this paper, the effect of operation parameters of microfiltration (MF) and ultrafiltration (UF) processes on the performance of purification and de-colorization of raw juice have been studied. Experiments were carried out using the pilot plant MF/UF membrane system equipped to a tubular module wi

The effect of pH in the selectity of a 300 kDa tubular ceramic membrane has been tested for the separation of lactoferrin from whey. The best resolution has been observed at the extremes of the range studied, 5 and 10, where lactoferrin is obtained in the permeate and in the retentate, respectively.

The performance of a 50 kDa ceramic membrane was analysed along 50 cycles comprising milk ultrafiltration, alkaline and acid cleaning. The evolution of the measured values of permeate flux, protein transmission and membrane resistances suggest the formation to some extent of a residual fouling.

PSf hollow fiber membranes were fabricated by a dry/wet spinning process. The morphology and separation performances of the fibers were found to be strongly affected by air gap and ambient humidity. Macrovoids in the membranes disappeared, reappeared, and redisappeared with increasing air gap. The a