Kinetics Studies on Biological Treatment of Tannery Wastewater Using Mixed Culture

Authors: G.Durai, N.Rajamohan, C.Karthikeyan, M.Rajasimman

Abstract:

In this study, aerobic digestion of tannery industry wastewater was carried out using mixed culture obtained from common effluent treatment plant treating tannery wastewater. The effect of pH, temperature, inoculum concentration, agitation speed and initial substrate concentration on the reduction of organic matters were found. The optimum conditions for COD reduction was found to be pH - 7 (60%), temperature - 30ÔùªC (61%), inoculum concentration - 2% (61%), agitation speed - 150rpm (65%) and initial substrate concentration - 1560 mg COD/L (74%). Kinetics studies were carried by using Monod model, First order, Diffusional model and Singh model. From the results it was found that the Monod model suits well for the degradation of tannery wastewater using mixed microbial consortium.

Keywords: Tannery, Wastewater, Biological treatment, Aerobic, Mixed culture, Kinetics.

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1070979

References:

[1] N. K. Uberoi, Environmental Management, Excel Books, New Delhi. 2003, pp. 269.
[2] W. M. Wiegant, T.J.J. Kalker, V.N. Sontakke and R.R. Zwaag, "Full scale experience with tannery water management: an integrated approach", Water Sci. Technol, vol.39(5), 1999, pp.169-176.
[3] K. J. Sreeram, T. Ramasami, "Sustaining tanning process through conservation, recoveryand better utilization of chromium", Resourc. Conserv. Recycling, vol.38 (3), 2003, pp. 185-212.
[4] M. L. M. Stoop, "Water management of production systems optimised by environmentally oriented integral chain management: case study of leather manufacturing in developing countries", Technovation, vol.23 (3), 2003, pp. 265-278.
[5] D. H. Ahn, Y. C. Chung, Y. J. Yoo, D. W. Pak and W.S.Chang, "Improved treatment of tannery wastewater using zoogloea ranigera and its extracellular polymer in an activated sludge process", Biotechnol. Let, vol.18 (8), 1996, pp. 917 - 922.
[6] K. Vijayaraghvan, and D.V. H. Murthy, "Effect of toxic substances in anaerobic treatment of tannery wastewater", Bioprocess Biosys. Eng, vol.16, 1997, pp. 151-155.
[7] M. Wiemann, H. Schenk, and W. Hegemann, "Anaerobic treatment of tannery wastewater with simultaneous sulphide elimination", Water Res, vol.32(3), 1998, pp. 774-780.
[8] C. Di Iaconi, A. Lopez, R. Ramadori, and R. Passino, "Tannery wastewater treatment by sequencing batch biofilm reactor", Environ. Sci.Technol, vol. 37(14), 2003, pp. 3199 - 3205.
[9] G. Farabegoli, A. Carucci, M. Majone and E. Rolle, "Biological treatment of tannery wastewater in the presence of chromium", Journal of Environmental Management, vol.71(4), 2004, pp. 345-349.
[10] S.G. Schrank, H. J. Jos, R. F. P. M. Moreira and H. Fr. Schroder, "Fentons oxidation of various - based tanning materials", Desalination, vol.50, 2003, pp. 411-423.
[11] G. Sekaran, K. Chitra, K. Mariappan, and K. V.Raghavan, "Removal of sulphide in anaerobically treated tannery wastewater by wet air oxidation", Journal of environmental science and health, vol. 31, 1996, pp. 579-598.
[12] S. Dogruel, G. E. Ates, B. F. Germirli, and D. Orhon, "Ozonation of nonbiodegradable organics in tannery wastewater", J. Environ. Sci. Health. Part-A, vol. 39, 2004, pp. 1705 - 1715.
[13] C. Di Iaconi, A. Lopez, G. Ricco, and R. Ramadori, J. Anal. Environ.Cultur. Herit. Chem, vol. 91, 2001, pp. 587.
[14] D. Orhon, S. Sszen, E. Ubay Cokgsr, and E. Ates, IAWQ 19th Biennial International Conference, 1998, pp. 256 -363.
[15] Z. Song, C. J. Williams and R.G. J. Edyvean, ÔÇÿTreatment of tannery wastewater by chemical coagulation", Desalination, vol.164, 2004, pp.249 - 259.
[16] J. H. Churchley, "Removal of sewage effluent- the use of a fullscale ozone plant", Water Science and Technology, vol. 30(3), 1994, pp. 275- 284.
[17] S. R. Stern, Azpyrkowicz, and I.Rodighiro, "Aerobic treatment of textile dyeing wastewater", Water Science and Technology, vol. 47(10), 2003, pp. 55-59.
[18] W. Chu, "Dye removal from textile dye wastewaters using recycled alum sludge", Water Research, vol.35 (13), 2001, pp. 3147-3152
[19] APHA.1998.Standard Methods for Water and Wastewater Examination, 20th Ed. American Public Health Association, Washington
[20] G. Durai, and M. Rajasimman, "Biological treatment of tannery wastewater -a review", Journal of Environmental science and Technology, vol. 4(1) 2011, pp. 1-17.