Determination of the mass transfer limiting step of dye adsorption onto commercial adsorbent by using mathematical models

• Published in: Environmental technology Vol. 35; no. 18; pp. 2356 - 2364
• Main Authors: Marin, Pricila, Borba, Carlos Eduardo, Módenes, Aparecido Nivaldo, Espinoza-Quiñones, Fernando R, de Oliveira, Silvia Priscila Dias, Kroumov, Alexander Dimitrov
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 17.09.2014; Taylor & Francis Ltd
• Subjects: Adsorbents; Adsorption; Applied sciences; Chemical engineering; Coloring Agents - chemistry; Coloring Agents - isolation & purification; Coloring Agents - metabolism; dye; environmental technology; Exact sciences and technology; fixed-bed; Heat and mass transfer. Packings, plates; Industrial Waste; mass transfer; mass transfer mechanism; mathematical modelling; Mathematical models; Models, Theoretical; Pollution; system optimization; Water Pollutants - chemistry; Water Pollutants - isolation & purification; Water Pollutants - metabolism; Water Purification - methods; British Isles; Discoloration; Modeling; Optimization; Mass transfer; Design; dye; Mass transfer coefficient; fixed-bed; mass transfer mechanism; mathematical modelling; Adsorption; Reactive dye; Physicochemical purification; Mathematical model; Fixed bed; Breakthrough curve

Reactive blue 5G dye removal in a fixed-bed column packed with Dowex Optipore SD-2 adsorbent was modelled. Three mathematical models were tested in order to determine the limiting step of the mass transfer of the dye adsorption process onto the adsorbent. The mass transfer resistance was considered...