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Equilibrium and kinetic studies of adsorption of boron on activated alumina.
Water Environ Res. 2009 Dec; 81(12):2455-9.WE

Abstract

Boron is widely distributed in the environment, mainly in the form of boric acid or borate salts, and its contamination of waters is a concern around the world. This study focuses on boron removal by means of adsorption onto activated alumina. Optimum adsorption was achieved in the pH range 8.0 to 8.5. Approximately 60% (by mass) boron removal was achieved using an adsorbent dose of 5 g at an initial boron concentration of 50 mg/L. Adsorption isotherms at 10, 20, and 30 degrees C were investigated. The results fitted with the Langmuir and Freundlich equations showed a monolayer adsorption onto a surface, with a finite number of identical sites. To study the rate-limiting step, the adsorption kinetic data of boron were analyzed using first-order (Lagergren) and second-order kinetic models. The experimental results obtained showed that the adsorption process followed a second-order kinetic model.

Authors+Show Affiliations

Laboratory of Water and Membranes Technologies, Faculty of Sciences of Tunis, 2092 Manar II, Tunisia. bg_wided@yahoo.frNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

20099630

Citation

Bouguerra, W, et al. "Equilibrium and Kinetic Studies of Adsorption of Boron On Activated Alumina." Water Environment Research : a Research Publication of the Water Environment Federation, vol. 81, no. 12, 2009, pp. 2455-9.
Bouguerra W, Marzouk I, Hamrouni B. Equilibrium and kinetic studies of adsorption of boron on activated alumina. Water Environ Res. 2009;81(12):2455-9.
Bouguerra, W., Marzouk, I., & Hamrouni, B. (2009). Equilibrium and kinetic studies of adsorption of boron on activated alumina. Water Environment Research : a Research Publication of the Water Environment Federation, 81(12), 2455-9.
Bouguerra W, Marzouk I, Hamrouni B. Equilibrium and Kinetic Studies of Adsorption of Boron On Activated Alumina. Water Environ Res. 2009;81(12):2455-9. PubMed PMID: 20099630.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Equilibrium and kinetic studies of adsorption of boron on activated alumina. AU - Bouguerra,W, AU - Marzouk,I, AU - Hamrouni,B, PY - 2010/1/27/entrez PY - 2010/1/27/pubmed PY - 2010/2/19/medline SP - 2455 EP - 9 JF - Water environment research : a research publication of the Water Environment Federation JO - Water Environ Res VL - 81 IS - 12 N2 - Boron is widely distributed in the environment, mainly in the form of boric acid or borate salts, and its contamination of waters is a concern around the world. This study focuses on boron removal by means of adsorption onto activated alumina. Optimum adsorption was achieved in the pH range 8.0 to 8.5. Approximately 60% (by mass) boron removal was achieved using an adsorbent dose of 5 g at an initial boron concentration of 50 mg/L. Adsorption isotherms at 10, 20, and 30 degrees C were investigated. The results fitted with the Langmuir and Freundlich equations showed a monolayer adsorption onto a surface, with a finite number of identical sites. To study the rate-limiting step, the adsorption kinetic data of boron were analyzed using first-order (Lagergren) and second-order kinetic models. The experimental results obtained showed that the adsorption process followed a second-order kinetic model. SN - 1061-4303 UR - https://www.unboundmedicine.com/medline/citation/20099630/Equilibrium_and_kinetic_studies_of_adsorption_of_boron_on_activated_alumina_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=1061-4303&date=2009&volume=81&issue=12&spage=2455 DB - PRIME DP - Unbound Medicine ER -