Removal of Methyl Orange from Aqueous Solution Using Guar Gum-g-Poly(acrylic Acid) Superabsorbent Composite

Author

Musarrat Khan


Abstract

 The presence of synthetic dyes in industrial wastewater represents a significant environmental concern because of their persistence and adverse effects on aquatic systems. In the present study, a guar gum-g-poly(acrylic acid) superabsorbent composite was investigated as an adsorbent for the removal of methyl orange (MO) from aqueous solution. Batch adsorption experiments were performed to investigate the influence of adsorbent dosage, contact time and solution pH on dye removal. The residual dye concentration was determined by UV–Visible spectrophotometry. Increasing the adsorbent dosage resulted in a substantial improvement in methyl orange removal, reaching approximately 90% at the highest investigated dosage. The percentage removal also increased with contact time and approached equilibrium at approximately 50 min. The adsorption behavior was further evaluated using Freundlich and Langmuir isotherm models. The Freundlich plot exhibited an R² value of 0.96697, whereas the Langmuir plot showed an R² value of 0.99596 based on the relationships reported in the experimental source. The results demonstrate that the guar gum-g-poly(acrylic acid) superabsorbent composite has potential for the removal of methyl orange from aqueous media.


Keywords

Methyl orange; guar gum; poly(acrylic acid); superabsorbent composite; adsorption; wastewater treatment; adsorption isotherm.



Full Text:

Download Paper PDF


References


  1. Heinfling, A., Martinez, M.J., Martinez, A.T., Bergbauer, M. and Szewzyk, U. Applied and Environmental Microbiology, 64(8), 2788 (1998).
  2. Haghseresht, F. and Lu, G. Adsorption characteristics of phenolic compounds onto coal-reject-derived adsorbents. Energy & Fuels, 12, 1100–1107 (1998).
  3. Sokker, H.H., Abdel-Kareem, M., Zohdy, K. and Younes, M.M. Journal of Radiation Research and Applied Sciences, 3(4), 1107–1124 (2010).
  4. Zhu, H., Jiang, R. and Xiao, L. Applied Clay Science, 48, 522–526 (2009).
  5. Javed, I., Feroza, H.W., Muhammad, H.S.W., Rukhsana, M., Syed, A.T., Muhammad, I. and Allah, B.G. Arabian Journal of Chemistry, 4, 389–395 (2011).
  6. Chiou, M.S. and Li, H.Y. Journal of Hazardous Materials, B93, 233–248 (2002).
  7. Kumar, P.S., Ramalingam, S., Senthamarai, C., Niranjana, M., Vijayalakshmi, P. and Sivanesan, S. Desalination, 261(1–2), 52–60 (2010).
  8. Wang, L., Zhang, J., Zhao, R., Li, C., Li, Y. and Zhang, C.L. Desalination, 25(1–3), 68–74 (2010).
  9. Tang, Y., Wang, X. and Zhu, L. Polymer Bulletin, 70, 905–918 (2013).
  10. Wang, Y., Zheng, L., Ren, X., Song, H. and Wang, A. Journal of Environmental Sciences, 22(1), 7–14 (2010).
  11. Weber, T.W. and Chakkravorti, R.K. Pore and solid diffusion models for fixed-bed adsorbers. AIChE Journal, 20, 228–238 (1974).
  12. Nakbanpote, W., Thiravetyan, P. and Kalambaheti, C. Minerals Engineering, 13, 391–552 (2002).

 

Share your valuable work from Social Media Buttons