Adsorption

In industry, when operations of separation, concentration, purification or sterilisation are necessary, membrane processes can be applied. In the food industry, a tangential process is used in many sectors (milk, gelatine, vinegar, juice, wine, etc.). Other fields are also concerned with these proce

The application of photocatalysis in the treatment of organic micropollutants in wastewater is an interesting alternative and is the object of a great interest over the last years by many researchers. The stage of adsorption of the micropollutant on the photocatalyst, mainly the titanium oxide anata

Application of membrane techniques (pervaporation and membrane-based solvent extraction) and adsorption tothe removal of phenol from solutions modelling wastewater from phenol production by cumene oxidation processwas investigated. The transport and separation properties of composite membranes PEBA,

Fine particles of photoactive anatase-type TiO2 were loaded on activated carbon and carbon spheres through the hydrolysis of titanium oxysulfate under autogenous hydrothermal conditions. Their photoactivity and adsorptivity were evaluated separately by the measurements of relative concentration of m

This study aims to find news a die of purification for a wastewater reuse. Primary effluent contains organic mineral, dissolved and suspended matter (colloids). Microfiltration or ultrafiltration is adequate for producing disinfected clear water suited for different applications. However, direct fil

Titania (TiO2) membranes with molecular weight cut-offs controlled at 250, 400, and 2000 were successfully prepared by the sol-gel process. These porous membranes rejected electrolytes based on Donnan exclusion, and the permeate volume flux, based on the electroviscous effect, was pH-dependent, simi

Flocculated particles can form a highly porous filtration cake and prevent the deposition of particles on the membrane in combination with crosflow micro filtration, which would enable a higher permeate flux [8]. Using this concept, a study was carried out to investigate the possibility of using flo

A new process combination for the treatment of severely contaminated waste water has been developed: powdered adsorbent is injected into the feed of a nanofiltration unit and removed from the concentrate subsequently by a thickener. The powdered adsorbent in the feed has a positive effect on permeat

Membrane surface characterization was studied by contact angles using both a goniometer and a tensiometer. It was checked that static and dynamic advancing contact angles of ultrafiltration membranes with water were in very good agreement. For glycerol and α-bromonaphthalene, dynamic advancing conta

Adsorption of polymers represents an usual way to modify solid/liquid interfaces for many applications, especially in biotechnology and biomedical applications. For instance, in hemodialysis, the blood/membrane interface could trigger many biochemical systems. We examined the influence of a polyethy