Removal of Lignin by Industrial Solid Wastes
Publication: Practice Periodical of Hazardous, Toxic, and Radioactive Waste Management
Volume 4, Issue 4
Abstract
Batch experiments have been carried out to study lignin removal from pulp and paper mill effluent by adsorption onto blast furnace flue dust from a steel plant and slag generated in a chrome alloy plant. Removal efficiencies attained after 8 h were observed to be more than 80% and 60% for the blast furnace flue dust and slag, respectively. The adsorption processes for both adsorbents follow first-order kinetics and Freundlich adsorption isotherms, decreasing with the increasing pH and temperature. Intraparticle diffusion studies indicate that adsorption of the substrate takes place rapidly by external mass transfer, followed by intraparticle diffusion. Column experiments indicate that the absorbed amount of lignin decreased with increasing flow rate and decreasing bed height. The break through time and bed depth data showed the applicability of the bed-depth service time model.
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References
1.
Allon, S. J., Mckey, G., and Khadur, K. Y. H. ( 1989). “Interparticle division of basic dye during adsorption on sophagnum peat.” Envir. Pollution, Barking, U.K., 56, 39–42.
2.
Huang, C. P., and Blankenship, D. W. ( 1984). “The removal of mercury (II) from dilute aqueous solutions by activated carbon.” Water Res., 18, 37–46.
3.
Hutchins, R. A. ( 1973). “New method simplifies design of activated carbon system.” Chem. Engrg., 80(19), 133.
4.
Odier, E., and Artaud, I. ( 1992). “Degradation lignin.” Microbial degradation of national products, 1st Ed., VCH, New York, 161–185.
5.
Pandey, K. K., Prasad, G., and Singh, V. N. ( 1984). “Removal of Cr(VI) from aqueous solutions by adsorption on fly ash—wollastonite.” J. Chem. Technol. and Biotechnol., Oxford, U.K., 34A, 367–374.
6.
Patnaik, L. N., and Das, C. P. ( 1995). “Removal of hexavalent chromium by blast furnace flue dust.” Indian J. Envir. Health, Nagpur, India, 37(1), 19–25.
7.
Rohella, R. S., Sahoo, N., Paul, S. C., Choudhury, and Chakravorty, V. ( 1996). “Thermal studies on isolated and purified lignin.” Thermochimica Acta, Amsterdam, 2983, 1–8.
8.
Rosehart, R. G. ( 1985). “A color removal process for Kraft Pulp and Paper Mill effluents.” Water, Air, and Soil Pollution, Dordrecht, The Netherlands, 25, 275–284.
9.
Sastry, C. A. ( 1986). “Colour removal from pulp and paper mill waste waters.” Indian J. Envir. Protection, Varanasi, India, 6(2), 105–112.
10.
Srivastava, S. K., Gupta, V. K., and Mohan, D. (1997). “Removal of lead and chromium by activated slag—a blast-furnace waste.”J. Envir. Engrg., ASCE, 123(5), 461–468.
11.
Swamy, M. M., Mall, I. D., Prasad, B., and Mishra, I. M. ( 1997). “Resorcinol removal from aqueous solutions by Bagasse fly ash and activated carbon: Batch and column studies.” J. Instn. of Engrs. (India), Calcutta, 77, 49–54.
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Published online: Oct 1, 2000
Published in print: Oct 2000
Received: Jun 21, 2001
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