Fevereiro 2015 vol. 1 num. 2 - XX Congresso Brasileiro de Engenharia Química

Artigo - Open Access.

Idioma principal




Aromatic hydrocarbons, as benzene, toluene and xylene were removed by adsorption into a commercial organoclay as an alternative for wastewater treatment and the aim of this study was to evaluated modifications on the structure of the organoclay due to the adsorption process of BTX, which is relevant for the next studies of regeneration of this adsorbent. From mercury porosimetry analysis it was observed that the largest number of pores of organoclay occurs to a diameter close to 200*10



DOI: 10.5151/chemeng-cobeq2014-1562-18653-133766

Referências bibliográficas
  • [1] BALA, P.; SAMANTARAY, B.K.; SRIVASTAVA S.K. Synthesis and characterization of Na-montmorillonite-alkylammonium intercalation compounds. Materials Research Bulletin, v. 35, p. 1717-172, 2000.
  • [2] CONAMA, Brazilian Ministry of Environment, Conditions and standards for wastewaters discharge. Resolution No. 430, May 13, 2011. (In Portuguese). DOU, J.; LIU, X; HU, Z. Anaerobic BTEX degradation in soil bioaugmented with mixed consortia under nitrate reducing conditions. Journal of Environmental Sciences, v.20, p.585–592, 2008.
  • [3] EL BRIHI, T.; JAUBERT, J.N.; BARTH, D.; PERRIN L. Determining volatile organic compounds’ adsorption isotherms on dealuminated Y zeolite and correlation with different models. J. Chem. Eng. Data, v.47, p.1553-1557, 2002.
  • [4] JIIN-SHUH, J.; MING-KUO, L.; SHIH-MING, W.; PABITR, C.; JYOTI PRAKASH, M. Effects of inorganic nutrient levels on the biodegradation of benzene, toluene, and xylene (BTX) by Pseudomonas spp. in a laboratory porous media sand aquifer model. Bioresource Technology, v.99, p.7807–7815, 2008.
  • [5] KERMANSHAHI-POUR, A.; KARAMANEV, D.; MARGARITIS, A. Biodegradation of petroleum hydrocarbons in an immobilized cell airlift bioreactor, Water Res., v.39, p.3704–3714, 200
  • [6] LI, Z.; JIANG, W.-T.; HONG, H. An FTIR investigation of hexadecyltrimethylammonium intercalation into rectorite. Spectrochemica Acta Part A, v.71, p.1525-1534, 2008.
  • [7] MARTIN, D. C. R.; MOLINA, J.P.C.; VIEIRA, M.G.A.; TOMAZ, E. Characterization of organophilic clay fluidgel for application as adsorbent for aromatic hydrocarbons. In: XXX Brazilian Congress of Particulate Systems (ENEMP), Vassouras-RJ, Brazil, 2011. (In Portuguese). Área temática: Engenharia Ambiental e Tecnologias Limpas 7MINISTRY OF LABOR, Bureau of Safety and Health at Work. Decree Nº 14, December 20, 1995. (In Portuguese). MOORE, D M; REYNOLDS, JR., R.C. X-Ray diffraction and identification and analysis of clay minerals. 2. ed. New York: Oxford University Press, p.378, 199
  • [8] NOURMORADI, H.; NIKAEEN, M.; KHIADANI M. Removal of benzene, toluene, ethylbenzene and xylene (BTEX) from aqueous solutions by montmorillonite modified with nonionic surfactant: Equilibrium, kinetic and thermodynamic study. Chem. Eng., v.191, p.341-348, 2012.
  • [9] PAIVA, L.B.; MORALES, A.R. Organophilic bentonites based on argentinean and brazilian bentonites. Part 1: Influence of intrinsic properties of sodium bentonites on the final properties of organophilic bentonites prepared by solid-liquid and semisolid reactions. Chem. Eng., v.2 n.3. p.525-536, 2012.
  • [10] SANTOS, O.A. A.; SILVA, M.G.C. Thermal characterization of organoclays for the removal of fuel oils. In: VI Brazilian Conference on Heat Treatment Issues, Atibaia-SP, Brazil. June 17 to 20, 2012. (In Portuguese). SILVA, A.A.; VALENZUELA-DIAZ, F.R; MARTINS, G.S.V.; RODRIGUES, M.G.F. Preparation of organoclays using different concentrations of quaternary ammonium salt. Ceramics, v.53, p.417-422, 2007. (In Portuguese). SOUZA, S.M.A.G.U.; LUZ, A.D.; SILVA, A. Removal of Mono- and Multicomponent BTX Compounds from Effluents Using Activated Carbon from Coconut Shell as the Adsorbent. Ind. Eng. Chem. Res., v.51, p.6461−6469, 2012.
  • [11] TIBURTIUS, E.R.L.; PERALTA-ZAMORA, P.; EMMEL, A. Treatment of gasoline contaminated waters by advanced oxidation processes, Journal of Hazardous Materials, B126, p.86–90, 2005.
  • [12] VAIA, R.A.; TEUKOLSKY, R.K.; GIANNELIS, E.P. Interlayer structure and molecular environment of alkylammonium layered silicates. Chemistry of Materials, v.6, n.7, p.1017-1022, 1994.
  • [13] VIDAL, C.B.; RAULINO, G.S.C.; BARROS, A.L.; LIMA, A.C.A.; RIBEIRO J.P; PIRE, M.J.R.; NASCIMENTO, R.F. BTEX removal from aqueous solutions by HDTMA-modified Y zeolite. J. of Environmental Management, v.112, p.178-185, 2012.
  • [14] YANG, X.; AL-DURI, B. Kinetic modeling of l iquid-phase adsorption of reactive dyes on activated carbon. Colloid and Interface Science, v.287, p. 25-34, 2005.
  • [15] ZENASNI, M.A.; BENFARHI, S.; MANSRI, A.; BENMEHDI, H.; MEROUFEL, B.; DESBRIERES, J.; DEDRIVERES, R. Influence of pH on the uptake of toluene from water by the composite poly (4-vinylpyridinium)-maghnite. African Journal of Pure and Applied Chemistry, v. 5(15), p. 486-493, 2011.
  • [16] ZHANG, W.A.; CHEN, D. Z.; XU, H.Y.; SHEN, X.F.; FANG, Y.E. Influence of four different types of organophilic clay on the morphology and thermal properties of polystyrene/clay nanocomposites prepared by using the γ-ray irradiation technique. European Polymer J., v.39, p.2323-2328, 2003.
Como citar:

STOFELA, S. K. F.; VIEIRA, M. G. A.; "EVALUATION OF STRUCTURAL MODIFICATION OF ORGANOCLAY BY ADSORPTION OF BTX", p. 8892-8899 . In: Anais do XX Congresso Brasileiro de Engenharia Química - COBEQ 2014 [= Blucher Chemical Engineering Proceedings, v.1, n.2]. São Paulo: Blucher, 2015.
ISSN 2359-1757, DOI 10.5151/chemeng-cobeq2014-1562-18653-133766

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