Research Papers by Mahmoud Dhahbi

Membrane methods, including MF, UF and NF, belong to high-efficiency processes which can be competitive with traditional methods of water treatment. However, their efficiency can be affected by some parameters such as rejection and permeate flux. In this work, three membrane processes (MF, UF and NF

Enhanced ultrafiltration by the addition of poly(ammonium acrylate), with two average molecular weight 8000 Da and 15 000 Da, for the removal of Cd(II) from aqueous solutions has been studied. The solution is processed by ultrafiltration using a membrane with pore sizes (10 kDa) small enough to bloc

Micellar enhanced ultrafiltration (MEUF) was used to remove cationic dye from aqueous solution. Sodium dodecylsulfate (SDS) and Safranin T (ST) (molecular weight 350.85) have taken as anionic surfactant and cationic dye, respectively. Regenerated cellulose membrane of molecular weight cut-off 10 kDa

The textile wastewater treatment by membrane processes presents some limitations such as membrane fouling which causes a rapid flux decline. In fact, the membrane processes efficiency can be affected by membrane pore blocking or/and cake formation. In order to limit the effect of membrane fouling ca

Tunisia has five major geothermal districts. Recorded hot spring temperatures range from 294 to 340 K with flow rates 0.1–102 L/s. In southern parts available groundwater resources are mostly hard and brackish (3 g/L). Recently, Tunisia has resorted to this resource for agriculture and potable water

Micellar-enhanced ultrafiltration (MEUF) of chromate anions (CrO42–) from aqueous streams has been studied at 30°C using twice cationic surfactants (cetyltrimethylammonium bromide and cetylpyridinium chloride). The solution is processed by ultrafiltration, using a membrane with pore sizes small enou