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Tea industry waste activated carbon as a low-cost adsorbent for methylene blue removal from wastewater

Author Affiliations

  • 1Department of Chemistry, University of Kelaniya, Kelaniya, Sri Lanka
  • 2Department of Chemistry, University of Kelaniya, Kelaniya, Sri Lanka

Res.J.chem.sci., Volume 8, Issue (5), Pages 7-18, May,18 (2018)

Abstract

The possible utilization of tea industry waste activated carbon (TIWAC) as an inexpensive, eco-friendly bio adsorbent for methylene blue (MB) removal from wastewater was studied. Phosphoric acid was used as the activating agent for the preparation of TIWAC and Scanning Electron Microscopy and Fourier Transformed Infrared Spectroscopy were used to characterize TIWAC. In this work batch experiments were carried out at pH 7 and at temperature of 30±2 ◦C to study the efficiency of MB adsorption on to TIWAC under different conditions such as TIWAC dosage, MB concentration, pH of the solution, and agitation time. The adsorption characteristics of the sorbent was tested with Freundlich and Langmuir adsorption models and the kinetic studies were conducted to determine the order of the adsorption process. The adsorption capacity of MB and the maximum % removal of MB by TIWAC were found to be 233.51 mg g-1 and 77.8% respectively at the optimized adsorption conditions (TWAC dosage= 0.001 g, MB concentration= 300 mg/L, agitation time=6 hrs) at pH 7. Isotherm data were satisfied Langmuir model than Freundlich model and kinetic data were best fitted with the pseudo first order model. Most importantly, the Langmuir constant, the maximum adsorption capacity value (q0); obtained for adsorption of MB onto TIWAC was 303.3 mg g-1, which is significantly greater than that of the adsorption of MB by various other bio-sorbents reported in the literature. Bench-scale fixed-bed column experiments were also carried out at various flow rates to study the practical usability of the adsorbent and it was found out that the breakthrough time was decreased with increasing flow rate. The results of this study indicate that TIWAC is an effective and environmental friendly adsorbent for removal of dye from wastewater.

References

  1. Ratna and Padhi B.S. (2012)., Pollution due to synthetic dyes toxicity & carcinogenicity studies and remediation., Int. J. Environ. Sci., 3(3), 940-955.
  2. Sarasa J., Roche M.P., Ormad M.P., Gimeno E., Puig A. and Ovelleiro J.L. (1998)., Treatment of a wastewater resulting from dyes manufacturing with ozone and chemical coagulation., Water Research, 32(9), 2721-2727.
  3. Robinson T., Chandran B. and Nigam P. (2002)., Removal of dyes from a synthetic textile dye effluent by biosorption on apple pomace and wheat straw., Water Res., 36, 2824-2830.
  4. Robinson T., McMullan G., Marchant R. and Nigam P. (2001)., Remediation of dyes in textile effluent: A critical review on current treatment technologies with a proposed alternative., Bioresour. Technol., 77(3), 247-255.
  5. Panizza M., Barbucci A., Ricotti R. and Cerisola G. (2007)., Electrochemical degradation of methylene blue., Sep. Purif. Technol., 54(3), 382-387.
  6. Tsai W.T. (2001)., Adsorption of acid dye onto activated carbons prepared from agricultural waste bagasse by ZnCl2 activation., Chemosphere, 45(1), 51-58.
  7. Ganewatta G. and Edwards G.W. (2000)., The Sri Lanka Tea Industry: Economic Issues and Government Policies., School of Business La Trobe University Bundoora, Victoria, Australia.
  8. Wijerathna D.M.C.B., Lee K., Koide T., Jinadasa K.B.S.N., Kawamoto K., Iijima S., Herath G.B.B., Kalpage C.S. and Mangalika L. (2013)., Solid waste generation, characteristics and management within the households in Sri Lankan urban areas., University of Moratuwa, Sri Lanka.
  9. Sugumaran P., Susan V.P., Ravichandran P. and Seshadri S. (2012)., Production and Characterization of Activated Carbon from Banana Empty Fruit Bunch and Delonix regia Fruit Pod., J. Sustain. Energy Environ., 3, 125-132.
  10. Yang K. (2010)., Preparation of high surface area activated carbon from coconut shells using microwave heating., Bioresour. Technol., 101, 6163-6169.
  11. Yalcin M. and Arol A.I. (2002)., Gold cyanide adsorption characteristics of activated carbon of non-coconut shell origin., Hydrometallurgy, 63(2), 201-206.
  12. Caturla F., Molina-Sabio M. and Rodríguez-Reinoso F. (1991)., Preparation of activated carbon by chemical activation with ZnCl2., Carbon N.Y., 29(7), 999-1007.
  13. Robert A.M. (2011)., Encyclopedia of Analytical Chemistry, A Practical Approach., John Wiley & Sons Ltd, Chichester. 10815-10837. ISBN: 978-0-470-97333-2.
  14. Thomas B.N., George S.C. and Shell C.O. (2015)., Production of Activated Carbon from Natural Sources., Abstract Trends in Green Chemistry Preparation of Activated Carbon from Preparation of Activated Carbon from Bamboo Chips Preparation of Aactivated Carbon from Cherry Stones. iMedPub Journals, 6, 1-5.
  15. Rahman M.A., Amin S.R. and Alam A.S. (2012)., Removal of methylene blue from waste water using activated carbon prepared from rice husk., Dhaka University Journal of Science, 60(2), 185-189.
  16. Khodaie M., Ghasemi N., Moradi B. and Rahimi M. (2013)., Removal of Methylene Blue from Wastewater by Adsorption onto ZnCl 2 Activated Corn Husk Carbon Equilibrium Studies., J. Chem., 6.
  17. Öktem Y., Soylu S. and Aytan N. (2013)., The adsorption of methylene blue from aqueous solution by using waste potato peels; equilibrium and kinetic studies., J Sci Ind Res., 71, 817-821.
  18. Da̧browski A., Podkościelny P., Hubicki Z. and Barczak M. (2005)., Adsorption of phenolic compounds by activated carbon - A critical review., Chemosphere, 58, 1049-1070.
  19. Tan I.A.W., Hameed B.H. and Ahmad A.L. (2007)., Equilibrium and kinetic studies on basic dye adsorption by oil palm fibre activated carbon., Chem. Eng. J., 127, 111-119.
  20. Hameed B.H., Ahmad A.A. and Aziz N. (2007)., Isotherms, kinetics and thermodynamics of acid dye adsorption on activated palm ash., Chem. Eng. J., 133, 195-203.
  21. Malik P.K. (2004)., Dye removal from wastewater using activated carbon developed from sawdust: adsorption equilibrium and kinetics., Waste Manag., 113, 81-88.
  22. Annadurai G., Juang R.S. and Lee D.J. (2002)., Use of cellulose-based wastes for adsorption of dyes from aqueous solutions., J. Hazard. Mater., 92, 263-274.
  23. Namasivayam C. and Kavitha D. (2002)., Removal of Congo Red from water by adsorption onto activated carbon prepared from coir pith, an agricultural solid waste., Dye. Pigment., 54, 47-58.
  24. Hameed B.H., Salman J.M. and Ahmad A.L. (2009)., Adsorption isotherm and kinetic modeling of 2, 4-D pesticide on activated carbon derived from date stones., J. Hazard. Mater., 163, 121-126.
  25. Febrianto J. (2009)., Equilibrium and kinetic studies in adsorption of heavy metals using biosorbent: A summary of recent studies., J. Hazard. Mater., 162, 616-645.
  26. Han R., Wang Y., Zhao X., Wang Y., Xie F., Cheng J. and Tang M. (2009)., Adsorption of methylene blue by phoenix tree leaf powder in a fixed-bed column: experiments and prediction of breakthrough curves., Desalination, 245(1-3), 284-297.
  27. Kannan N. and Sundaram M.M. (2001)., Kinetics and mechanism of removal of methylene blue by adsorption on various carbons-a comparative study., Dye. Pigment., 51, 25-40.
  28. Hameed B.H., Din A.M. and Ahmad A.L. (2007)., Adsorption of methylene blue onto bamboo-based activated carbon: kinetics and equilibrium studies., Journal of hazardous materials, 141(3), 819-825.
  29. Elmorsi T.M. (2011)., Equilibrium isotherms and kinetic studies of removal of methylene blue dye by adsorption onto miswak leaves as a natural adsorbent., Journal of Environmental Protection, 2(06), 817. https://www. researchgate.net/publication/268261926_Equilibrium_Isotherms_and_Kinetic_Studies_of_Removal_of_Methylene_Blue_Dye_by_Adsorption_onto_Miswak_Leaves_as_a_Natural_Adsorbent/figures?lo=1 (Accesed 10/03/2018)