Abstract
Among the dyes, the blue disperse and reactive orange have well recognized toxicities and dissemination facilities in the different compartments of the environment. Various regulations set maximum permissible levels of these dyes in both drinking water and industrial discharges. In order to comply with these various standards, many depollution techniques have been developed in recent years. Our choice is to carry out the adsorption of activated carbon based wood because this adsorption has main advantages of being more effective and easy to implement. Furthermore, the use of less expensive non-conventional adsorbents guarantees its economic feasibility. However, this elimination is affected by several parameters related to the carbon atom, to the solution and the active suspension. The adsorption results for Disperse Blue and orange reactive with activated charcoal showed adsorption capacity up to 4.8 mg / g and 12.4 mg / g. The study showed that the adsorption of activated carbon prepared from wood is more effective for the removal of these two wastewater dyes.
Highlights
In the textile industry various dyes are used
The activated carbon is commonly used as adsorbent in the extraction of colored species in the liquid phase due to its excellent adsorption capacity, this capacity is related to its high surface area and porosity [1]
The adsorption of blue dispersion (BD) and OR by CAB was studied in a field caught between pH 0.6 and 12 at room temperature, the initial concentration of the dye is 20 mg / L, the adsorbent mass is set to 0 2 g per 50 ml of the dye solution and the stirring time is 60 minutes
Summary
In the textile industry various dyes are used. An important part is located downstream of the process circuits, in a discharge. These have varying degrees of harmfulness or high toxicity. This pollution is dangerous because it is poorly understood. To fight against this dissolved pollution, research has been directed toward acceptable economic procédées by their low cost, using several techniques: adsorption on different materials [1,2,3,4,5], membrane filtration [5]. We study the use of charcoal made from wood mills in order to launder liquid discharges
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