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Title: Sawdust as biosorbent for removal of dyes from wastewaters ; Kinetic and thermodynamic study [articol]
Authors: Şuteu, Daniela
Zaharia, Carmen
Subjects: Protecția mediului
Ape uzate
Studiu termodinamic
Orange 16 reactive dye
Thermodynamic study
Issue Date: 2011
Publisher: Timişoara: Editura Politehnica
Citation: Şuteu, Daniela.Sawdust as biosorbent for removal of dyes from wastewaters ; Kinetic and thermodynamic study.Timişoara: Editura Politehnica, 2011
Series/Report no.: Seria chimie şi ingineria mediului;Tom 56(70), fasc. 2 (2011)
Abstract: A new waste material, characterized by low cost, availability and ligno cellulose composition, was tested for its ability to remove reactive dyes from aqueous systems or environments. This paper continues our studies concerning utilisation of sawdust as low-cost sorbent for decolourization of different textile effluents which contain synthetic textile dyes with a high molecular weight. In this context, kinetic and thermodynamic studies were carried out in order to establish all favourable conditions to uptake of Orange 16 reactive dye from aqueous solution of pH =1 by using batch technique. The kinetics of adsorption of Orange 16 reactive dye are following a pseudo-second order model. The values of thermodynamic parameters, ∆G and ∆H, were calculated using Langmuir constant (KL) and showed a spontaneous and exothermic sorption process. The results indicate that waste of wood (like sawdust) is an attractive sorbent for removing reactive dyes from the wastewater.
URI: http://localhost:8080/xmlui/handle/123456789/1791
Appears in Collections:Articole stiintifice/Scientific articles

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