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Kinetic and thermodynamic studies of acid scarlet 3r adsorption onto low-cost adsorbent developed from sludge and straw
Ren, Xiaoli (Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China); Yang, Ling; Liu, Min  Source: Chinese Journal of Chemical Engineering, v 22, n 2, p 208-213, February 2014
Database: Compendex

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Accession number:       
20141017416017
        Title:        Kinetic and thermodynamic studies of acid scarlet 3r adsorption onto low-cost adsorbent developed from sludge and straw
        Authors:         Ren, Xiaoli1 Email author xlren66@126.com; Yang, Ling1; Liu, Min1
        Author affiliation:        1 Department of Environmental and Safety Engineering, Taiyuan Institute of Technology, Taiyuan 030008, China
        Corresponding author:         Ren, X. (xlren66@126.com)
        Source title:        Chinese Journal of Chemical Engineering
        Abbreviated source title:        Chin J Chem Eng
        Volume:        22
        Issue:        2
        Issue date:        February 2014
        Publication year:        2014
        Pages:        208-213
        Language:        English
        ISSN:         10049541
        CODEN:         CJCEEB
        Document type:        Journal article (JA)
        Publisher:        Chemical Industry Press, No. 3 Huixinli, Chaoyangqu, Beijing, 100029, China
        Abstract:        A low-cost adsorbent was prepared from sludge and straw by pyrolysis in a dried state with the surface area of the adsorbent of 829.49 m 2¡¤g-1, micropore volume of 0.176 cm 2¡¤g-1 and average pore radius of 5.0 nm. The kinetic, equilibrium isotherm and thermodynamic characteristics of trisodium 1-(1-naphthylazo)-2-hydroxynaphthalene- 4¡ä,6,8-trisulphonate (acid scarlet 3R) onto the adsorbent from sludge and straw were investigated. The results indicated that the pseudo second order adsorption was the predominant adsorption mechanism of acid scarlet 3R. Thus, the adsorption phenomenon was suggested as a chemical process. The adsorption data were fitted better with Langmuir model than Freundlich model, indicating that the adsorption of acid scarlet 3R belonged to the monolayer adsorption and mainly occurred in micropores. © 2014 Chemical Industry and Engineering Society of China (CIESC) and Chemical Industry Press (CIP).
        Number of references:        20
        Main heading:         Adsorption
        Controlled terms:         Adsorbents  -  Kinetics  -  Microporosity  -  Straw  -  Thermodynamics
        Uncontrolled terms:         Acid scarlet 3R  -  Adsorption mechanism  -  Adsorption phenomena  -  Equilibrium isotherms  -  Kinetic and thermodynamic studies  -  Monolayer adsorption  -  sludge  -  Thermodynamic characteristics
        Classification code:         641.1 Thermodynamics -  802.3 Chemical Operations -  803 Chemical Agents and Basic Industrial Chemicals -  821.5 Agricultural Wastes -  931 Classical Physics; Quantum Theory; Relativity -  931.2 Physical Properties of Gases, Liquids and Solids
        DOI:        10.1016/S1004-9541(14)60004-5
        Database:        Compendex
                Compilation and indexing terms, © 2013 Elsevier Inc.
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