Open Access

Continuous Fixed-Bed Column Studies of Textile Effluent Treatment using Multi-Walled Carbon Nanotubes Originated from Rosmarinus officinalis Oil

S. Valliammai, Department of Chemistry, Dr. M. G. R. Educational and Research Institute, Adayalampattu, Chennai, TN, India K. Gopal, Department of Chemistry, Erode Arts and Science College, Erode, TN, India R. Nithya, Department of Chemistry, Dr. M. G. R. Educational and Research Institute, Adayalampattu, Chennai, TN, India L. Ramapriya, Department of Chemistry, Dr. M. G. R. Educational and Research Institute, Adayalampattu, Chennai, TN, India D. Kavitha kavitha.che@drmgrdu.ac.in
Department of Chemistry, Dr. M. G. R. Educational and Research Institute, Adayalampattu, Chennai, TN, India

---

---

Abstract

 A continuous adsorption study in a fixed-bed column was carried out using Multi-walled Carbon Nanotubes (MWNTs) derived from Rosmarinus officinalis oil as an adsorbent for removing the textile dye and Acid blue 40 from an aqueous solution. MWNTs were prepared from Rosmarinus officinalis oil as a precursor using Fe/Mo catalyst supported on silica at 650 ºC under N₂ atmosphere by spray pyrolysis process characterized by Scanning Electron Microscopy, Transmission Electron Microscopy and Raman spectroscopy. The effects of adsorbent bed height (2–6 cm), initial dye concentration (20-60 mg/L) and flow rate (10–30 mL/min) on the column performance were analyzed. The breakthrough curve was analyzed using the mathematical models of Thomas, Yoon-Nelson and bed depth service time. The Thomas model at different conditions defined the behaviors of the breakthrough curves. The bed depth service time model showed good agreement with the experimental data. The high values of correlation coefficients (R²: 0.9875) obtained indicate the validity of the bed depth service time model for the present column system.

Full Text

Reference

---

Ahmad, A. A., Hameed, B. H., Fixed-bed adsorption of reactive azo dye onto granular activated carbon prepared from waste, J. Hazard. Mater., 175(1–3), 298–303 (2010).

https://doi.org/10.1016/j.jhazmat.2009.10.003

Angulakshmi, V. S., Sivakumar, N., Karthikeyan, S., Response Surface Methodology for Optimizing Process Parameters for Synthesis of Carbon Nanotubes, J. Environ. Nanotechnol., 1(1), 40–45 (2012).

https://doi.org/10.13074/jent.2012.10.121019

Angulakshmi, V.S., Sathiskumar, C., Karthik, M., Karthikeyan, S., Synthesis of multi-walled carbon nanotubes from glycine max oil and their potential Applications, J. Environ. Nanotechnol., 2, 101-6(2013).

https://doi.org/10.13074/jent.2013.02.nciset316

Chowdhury, Z. Z., Zain, S. M., Rashid, A. K., Rafique, R. F., Khalid, K., Breakthrough Curve Analysis for Column Dynamics Sorption of Mn(II) Ions from Wastewater by Using Mangostana garcinia Peel-Based Granular-Activated Carbon, J. Chem., 2013, 1–8 (2013).

https://doi.org/10.1155/2013/959761

Demarchi, C. A., Campos, M., Rodrigues, C. A., Adsorption of textile dye Reactive Red 120 by the chitosan–Fe(III)-crosslinked: Batch and fixed-bed studies, J. Environ. Chem. Eng., 1(4), 1350–1358 (2013).

https://doi.org/10.1016/j.jece.2013.10.005

Gupta, V. K., Mittal, A., Gajbe, V., Adsorption and desorption studies of a water soluble dye, Quinoline Yellow, using waste materials, J. Colloid Interface Sci., 284(1), 89–98 (2005).

https://doi.org/10.1016/j.jcis.2004.09.055

Savage, N., Diallo, M. S., Nanomaterials and Water Purification: Opportunities and Challenges, J. Nanoparticle Res., 7(4–5), 331–342 (2005).

https://doi.org/10.1007/s11051-005-7523-5

Thomas, H. C., CHROMATOGRAPHY: A PROBLEM IN KINETICS, Ann. N. Y. Acad. Sci., 49(2), 161–182 (1948).

https://doi.org/10.1111/j.1749-6632.1948.tb35248.x

Yoon, Y. H., Nelson, J. H., Application of Gas Adsorption Kinetics I. A Theoretical Model for Respirator Cartridge Service Life, Am. Ind. Hyg. Assoc. J., 45(8), 509–516 (1984).

https://doi.org/10.1080/15298668491400197