10 research outputs found

    Biosorption Of Chromium(iii) By Sargassum Sp. Biomass

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    Chromium is present in different types of industrial effluents, being responsible for environmental pollution. Traditionally, the chromium removal is made by chemical precipitation. However, this method is not completely feasible to reduce the chromium concentration to levels as low as required by environmental legislation. Biosorption is a process in which solids of natural origin are employed for binding heavy metals. It is a promising alternative method to treat industrial effluents, mainly because of its low cost and high metal binding capacity. In this work the chromium biosorption process by Sargassum sp. seaweed biomass is studied. Sargassum sp. seaweed, which is abundant in the Brazilian coast, has been utilized with and without milling. The work considered the determination of chromium-biomass equilibrium data in batch system. These studies were carried out in order to determine some operational parameters of chromium sorption such as the time required for the metal-biosorbent equilibrium, the effects of biomass size, pH and temperature. The results showed that pH has an important effect on chromium biosorption capacity. The biosorbent size did not affect chromium biosorption rate and capacity. © 2002 by Universidad Católica de Valparaíso.52133140Aksu, Z., Kutsal, T., A bioseparation process for removing lead(II) ions from waste water by using C. vulgaris (1991) Journal of Chemical and Technology Biotechnology, 52 (1), pp. 109-118Costa, A.C.A., França, F.P., Cadmium uptake by biosorbent seaweeds: Adsorption isotherms and some process conditions (1996) Separation Science and Technology, 31, pp. 2373-2393Crist, R.H., Martin, J.R., Guptill, P.W., Eslinger, J.M., Crist, D.R., Interaction of metals and protons with algae. 2 Ion exchange in adsorption and metal displacement by protons (1990) Environment and Science and Technology, 24 (3), pp. 337-342Crist, R.H., Oberholser, K., Schwartz, D., Marzoff, J., Ryder, D., Interactions of metals and protons with algae, 1 (1988) Environment and Science Technology, 22 (7), pp. 755-760Darnall, D.W., Greene, B., Henzi, M.T., Hosea, J.M., Mcpherson, R.A., Sneddon, J., Alexander, M.D., Selective recovery of gold and other metal ions from an algal biomass (1986) Environment Science and Technology, 20, pp. 206-208Gadd, G.M., Heavy metal accumulation by bacteria and other microorganisms (1990) Experientia, 46, pp. 834-840Garnham, G.W., Codd, G.A., Gadd, G.M., Accumulation of zirconium by microalgae and cyanobacteria (1993) Applied Microbiology and Biotechnology, 39, pp. 666-672Guibal, E., Roulph, C., Le Cloirec, P., Uranium biosorption by a filamentous fungus Mucor miehei pH effect on mechanisms and performances of uptake (1992) Water Research, 26, pp. 1139-1145Holan, Z.R., Volesky, Biosorption of lead and nickel by biomass of marine algae (1994) Biotechnology and Bioengineering, 43, pp. 1001-1009Holan, Z.R., Volesky, B., Prasetyo, I., Biosorption of cadmium by biomass of marine algae (1993) Biotechnology and Bioengineering, 41, pp. 819-825Kratochvil, D., Volesky, B., Advances in biosorption of heavy metals (1998) Trends in Biotechnology, 16, pp. 291-300Kratochvil, D., Pimentel, P., Volesky, B., Removal of trivalent chromium by seaweed biosorbent (1998) Environment Science and Technology, 32, pp. 2693-2698Kuyucak, N., Volesky, B., Accumulation of cobalt by marine alga (1989) Biotechnology and Bioengineering, 33 (7), pp. 809-814Leusch, A., Holan, Z.R., Volesky, B., Biosorption of heavy metals (Cd, Cu, Ni, Pb, Zn) by chemically-reinforced biomass of marine algae (1995) Journal of Chemical and Technology Biotechnology, 62, pp. 279-288Muraleedharan, T.R., Iyengar, L., Venkobachar, C., Biosorption: An attractive alternative for metal removal and recovery (1991) Current Science, 61, pp. 379-385Nourbakhsh, M., Sag, Y., Özer, D., Aksu, Z., Çaglar, A., A comparative study of various biosorbents for removal of chromium(VI) ions from industrial wastewaters (1994) Process Biochemistry, 29, pp. 1-5Tsezos, M., Volesky, B., Biosorption of uranium and thorium (1981) Biotechnology and Bioengineering, 23, pp. 583-604Valkó, P., Vagda, S., An extended Maquardt-type procedure for fitting error in variables models (1987) Computation Chemical Engineering, 11, pp. 37-43Volesky, B., Holan, Z.R., Biosorption of heavy metals (1995) Biotechnology Progress, 11 (3), pp. 235-250. , May - JuneVolesky, B., (1990) Biosorption of Heavy Metals, 408p. , CRC Press, Boston, USA, November ISBN 0849349176Volesky, B., Biosorbent materials (1986) Biotechnology and Bioengineering, 16, pp. 121-125Yang, J., Volesky, B., Biosorption and elution of uranium with seaweed biomass (1999) Biohydrometallurgy and the Environment Toward the Mining of the 21st Century: International Biohydrometallurgy Symposium Proceedings, p. 483. , (20th - 23rd June, 1999, San Lorenzo De El Escorial, Madrid, Spain). BALLESTER, Antonio and AMILS, Ricardo eds., ISBN 044450193

    Modeling Of Copper(ii) Biosorption By Marine Alga Sargassum Sp. In Fixed-bed Column

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    The biosorption of copper(II) by the marine alga Sargassum sp. was investigated in a batch reactor and in a fixed-bed column (temperature= 30°C; pH 3.5). Langmuir and Freundlich sorption models were used to represent the equilibrium data. Experimental breakthrough curves in a fixed-bed column were obtained with a flow rate of 6 ml/min and feed concentration of 1, 2, 3 and 6 meq/l. A model that describes the dynamics of copper(II) ion sorption in the column was obtained from the mass balance in the fluid phase and the biosorbent. According to mass transfer three equations are available to represent the rate of adsorption. The model parameters: mass transfer coefficients, axial dispersion coefficients and constants of the kinetic equation, had their values adjusted from the experimental breakthrough curves. The model in which the mass transfer is controlled by diffusion in the biosorbent best represented the fixed-bed column dynamics. © 2002 Elsevier Science Ltd. All rights reserved.385791799Wilde, E.W., Benemann, J.R., Bioremoval of heavy metals by the use of microalgae (1993) Biotechnology Advances, 11, pp. 781-812Sandau, E., Sandau, P., Pulz, O., Heavy metal sorption by microalgae (1996) Acta Biotechnologica, 16, pp. 227-235Chong, K.H., Volesky, B., Description of two-metal biosorption equilibria by Langmuir type models (1995) Biotechnology and Bioengineering, 47, pp. 451-460Schiewer, S., Volesky, B., Modeling multi-metal ion exchange in biosorption (1996) Environmental Science and Technology, 30, pp. 2921-2927Çetinkaya, G., Donmez, Z., Aksu, Z., Ozturk, A., Kutsal, T., A comparative study on heavy metal biosorption characteristics of some algae (1999) Process Biochemistry, 34, pp. 885-892Silva, E.A., (2001) Estudo da Remoção Dos Íons Cromo(III) e Cobre(II) em Colunas de Leito Fixo Utilizando a Alga Marinha Sargassum sp. Como Biossorvente, , Ph.D. thesis, Universidade Estadual de Campinas, Campinas, BrazilCossich, E.S., (2000) Biossorção de Cromo(III) Pela Biomassa da Alga Marinha Sargassum sp., , Ph.D. thesis, Universidade Estadual de Campinas, Campinas, BrazilTrujillo, E.M., Jeffers, T.H., Ferguson, C., Stevenson, H.Q., Mathematically modeling the removal of heavy metals from a wastewater using immobilized biomass (1991) Environmental Science and Technology, 25, pp. 1559-1565Volesky, B., Prasetyo, I., Cadmium removal in a biosorption column (1994) Biotechnology and Bioengineering, 43, pp. 1010-1015Kratochvil, D., Volesky, B., Demopoulos, G., Optimizing Cu removal/recovery in a biosorption column (1997) Water Research, 31, pp. 2327-2339Matos, M.G.N., Knoechelmann, A., Abreu, C.A.M., Passavante, J.Z., Silva, V.L., Bioadsorção/troca iônica de soluções de cromo com algas arribadas (1998) Anais do II Encontro Brasileiro sobre Adsorção, , Florianópolis-SC, JunhoKratochvil, D., Volesky, B., Advances in biosorption of heavy metals (1998) Trends in Biotechnology, 16, pp. 291-300Ruthven, D.K., (1984) Fundamental of Adsorption and Adsorption Process, , New York: WileyMaliska, C.R., (1995) Transferência de Calor e Mecânica Dos Fluidos Computacional, , LTC Livros Técnicos e Científicos Editora SA, Rio de JaneiroPetzold, L.R., (1982) A Description of DASSL: A Differential/Algebric Equation System Solver, , STR, SAND82-8637, LivermoreMadras, G., Thibaud, C., Erkey, C., Akgerman, A., Modeling of supercritical extraction of organics from solid matrices (1994) American Institute of Chemical Engineering Journal, 40, pp. 777-788Ernest M.V., Jr., Whitley, R.D., Ma, Z., Linda Wang, N.H., Effects of mass action equilibria on fixed-bed multicomponent ion-exchange dynamics (1997) Industrial Engineering Chemical Research, 36, pp. 212-226Klamer, K., Van Krevelen, D.W., Studies on ion-exchange-I (1958) Chemical Engineering Science, 7, pp. 197-20

    Biosorption of binary mixtures of Cr(III) and Cu(II) ions by Sargassum sp

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    The adsorption of two metal ions, Cr(III) and Cu(II), in single-component and binary systems by Sargassum sp., a brown alga, was studied. Equilibrium batch sorption studies were carried out at 30ºC and pH 3.5. Kinetic tests were done for a binary mixture (chromium + copper) for a contact time of 72 hours to guarantee that equilibrium was reached. The monocomponent equilibrium data obtained were analyzed using the Langmuir and Freundlich isotherms. The binary equilibrium data obtained were described using four Langmuir-type and Freundlich isotherms. The F-test showed a statistically significant fit for all binary isotherm models. The parameters for isotherms of the Langmuir-type were used to determine the affinity of one metal for the biosorbent in the presence of another metal. The chromium ion showed a greater affinity for Sargassum sp. than the copper ion.21322

    Biosorption of Chromium(III) and Copper(II) Ions onto Marine Alga sp. in a Fixed-bed Column

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    The simultaneous biosorption of chromium(III) and copper(II) ions onto Sargassum sp. alga in a fixed-bed column reactor was investigated. Experiments were undertaken to determine the effect of the feed concentration (1, 2, 3 and 6 mequiv/ℓ) and the composition of the metal ion solution [0.25, 0.50 and 0.75 Cu(II)/Cr(III) ratio] on the behaviour of the breakthrough curves. A mathematical model was applied to describe the biosorption in a fixed-bed column. Equilibrium was described in this model in terms of a binary Langmuir-type adsorption process, together with mass transfer in the biosorbent based on the Linear Driving Force (LDF) model. The partial differential equations for the system were solved numerically by the finite volume method. The proposed mathematical model for the biosorption process provided a satisfactory description of the dynamics of metal ion removal in the column relative to the experimental data obtained. The adsorptive capacity of the biomass for Cr(III) ions in the binary system was greater than that for Cu(II) ions. The developed model could provide a useful tool for the optimization of Cr(III) and Cu(II) ion removal processes by Sargassum sp. biomass and the design of the corresponding fixed-bed columns

    Biosorption Of Chromium(iii) And Copper(ii) Ions Onto Marine Alga Sargassum Sp. In A Fixed-bed Column

    No full text
    The simultaneous biosorption of chromium(III) and copper(II) ions onto Sargassum sp. alga in a fixed-bed column reactor was investigated. Experiments were undertaken to determine the effect of the feed concentration (1, 2, 3 and 6 mequiv/l) and the composition of the metal ion solution [0.25, 0.50 and 0.75 Cu(II)/Cr(III) ratio] on the behaviour of the breakthrough curves. A mathematical model was applied to describe the biosorption in a fixed-bed column. Equilibrium was described in this model in terms of a binary Langmuirtype adsorption process, together with mass transfer in the biosorbent based on the Linear Driving Force (LDF) model. The partial differential equations for the system were solved numerically by the finite volume method. The proposed mathematical model for the biosorption process provided a satisfactory description of the dynamics of metal ion removal in the column relative to the experimental data obtained. The adsorptive capacity of the biomass for Cr(III) ions in the binary system was greater than that for Cu(II) ions. The developed model could provide a useful tool for the optimization of Cr(III) and Cu(II) ion removal processes by Sargassum sp. biomass and the design of the corresponding fixed-bed columns.285449464Aksu, Z., Gönen, F., (2004) Process Biochem., 39, p. 599Aliabadi, M., Morshedzadeh, K., Soheyli, H., (2006) Int. J. Environ. Sci. Technol., 3, p. 321Annesini, M.C., Gironi, F., Montecelli, B., (2000) Water Res., 34, p. 2989Baik, W.Y., Bae, J.H., Cho, K.M., Hartmeier, W., (2002) Bioresour. Technol., 81, p. 167Barros, M.A.S.D., Arroyo, P.A., Sousa-Aguiar, E.F., García, P.A., (2001) Ambient Problems with Catalytic Solutions: Chromium in the Tanning Industry, , CYTED, Madrid, Spain (in Spanish)Batista, A.P.S., Romão, L.P.C., Arguelho, M.L.P.M., Garcia, C.A.B., Alves, J.P.H., Passos, E.A., Rosac, A.H., (2009) J. Hazard. Mater., 163, p. 517Belter, P.A., Cussler, E.L., Hu, W.S., (1988) Bioseparations: Downstream Processing for Biotechnology, , Wiley New YorkBohart, G.S., Adams, E.Q., (1920) J. Am. Chem. Soc., 42, p. 523Borba, C.E., Guirardello, R., Silva, E.A., Veit, M.T., Tavares, C.R.G., (2006) Biochem. Eng. J., 30, p. 184Cavaco, S.A., Fernandes, S., Quina, M.M., Ferreira, L.M., (2007) J. Hazard. Mater., 144, p. 634Chong, K.H., Volesky, B., (1995) Biotechnol. Bioeng., 47, p. 451Chu, K.H., (2004) Chem. Eng. J., 97, p. 233Clark, R.M., (1987) Environ. Sci. Technol., 21, p. 573Cossich, E.S., (2000) Doctorate Thesis, , FEQ/Unicamp, Campinas-Brazil (in Portuguese)Davis, T.A., Volesky, B., Mucci, A., (2003) Water Res., 37, p. 4311Deepa, K.K., Sathishkumar, M., Binupriya, A.R., Murugesan, G.S., Swaminathan, K., Yun, S.E., (2006) Chemosphere, 62, p. 833Diniz, V., Volesky, B., (2005) Water Res., 39, p. 239Dranoff, S., Lapidus, L., (1958) Ind. Eng. Chem., 50, p. 1648Ernest Jr., M.V., Whitley, R.D., Ma, Z., Linda Wang, N.H., (1997) Ind. Eng. Chem. Res., 36, p. 212Gazola, F.C., Pareira, M.R., Barros, M.A.S.D., Silva, E.A., Arroyo, P.A., (2006) Chem. Eng. J., 117, p. 253Glueckauf, E., (1955) Trans. Faraday Soc., 51, p. 235Gurbuz, F., (2009) Adsorp. Sci. Technol., 27, p. 745Han, R., Zhang, J., Zou, W., Xiao, H., Shi, J., Liu, H., (2006) J. Hazard. Mater., 133, p. 262Hsieh, J.S.C., Turian, R.M., Chi, T., (1977) AIChE J., 23, p. 263Jain, J.S., Snoeyink, V.L., (1973) J. Water Pollut. Control Fed., 45, p. 2463Klein, G., Tondeur, D., Vermeulen, T., (1967) Ind. Eng. Chem. Fundam., 6, p. 339Kratochvil, D., Volesky, B., (1998) Water Res., 32, p. 2760Kratochvil, D., Volesky, B., (2000) Water Res., 34, p. 3186Li, X., Wei, W., Zeng, X., Zeng, J., Yin, J., Wu, L., (2007) World J. Microbiol. Biotechnol., 23, p. 1465Lo, I.M.C., Alok, P.A., (1996) Environ. Int., 22, p. 239Luna, A.S., Costa, A.C.A., Henriques, C.A., Herbst, M.H., (2007) Hydrometallurgy, 86, p. 105Ma, W., Tobin, J.M., (2003) Water Res., 37, p. 3967Ma, W., Tobin, J.M., (2004) Biochem. Eng. J., 18, p. 33Naja, G., Volesky, B., (2006) Colloids Surf. A, 281, p. 194Nelder, J.A., Mead, R., (1965) Comp. J., 7, p. 308Oda, H., Mizutaki, K., Yamamoto, M., Sano, M., (2008) Adsorpt. Sci. Technol., 26, p. 169Omatete, O.O., Clazie, R., Vermeulen, T., (1980) Chem. Eng. J., 19, p. 229Pradhan, S., Rai, L.C., (2000) World J. Microbiol. Biotechnol., 16, p. 579Ruthven, D.M., (1984) Principles of Adsorption and Adsorption Processes, , John Wiley & Sons, New YorkSaeed, A., Iqbal, M., (2006) World J. Microbiol. Biotechnol., 22, p. 775Sánchez, A., Ballester, A., Blázquez, M.A., González, F., Muñoz, J., Hammaini, A., (1999) FEMS Microbiol. Rev., 23, p. 527Sandau, E., Sandau, P., Pulz, O., (1996) Acta Biotechnol., 16, p. 227Schiewer, S., Volesky, B., (1996) Environ. Sci. Technol., 30, p. 2921Silva, E.A., (2001) Doctorate Thesis, , FEQ/Unicamp Campinas-Brazil (in Portuguese)Silva, E.A., Cossich, E.S., Tavares, C.R.G., Cardozo, L.F., Guirardelo, R., (2003) Braz. J. Chem. Eng., 20, p. 213Silva, E.A., Cossich, E.S., Tavares, C.R.G., Cardozo, L.F., Guirardelo, R., (2002) Process Biochem., 38, p. 791Silva, E.A., Tavares, C.R.G., Cardozo Filho, L., Ravagnani, T.M.K., Cossich, E.S., (2004) Adsorption, 10, p. 129Stuart, F.X., Camp, D.T., (1967) Ind. Eng. Chem. Fundam., 6, p. 156Tan, H.K.S., Spinner, I.H., (1994) Can. J. Chem. Eng., 72, p. 330Tewari, N., Vasudevan, P., Guha, B.K., (2005) Biochem. Eng. J., 23, p. 185Thomas, H.C., (1943) J. Am. Chem. Soc., 66, p. 1664Tondeur, D., Klein, G., (1967) Ind. Eng. Chem. Fundam., 6, p. 351Trivedi, B.D., Patel, K.C., (2007) World J. Microbiol. Biotechnol., 23, p. 683Trujillo, E.M., Jeffers, T.H., Ferguson, C., Stevenson, H.Q., (1991) Environ. Sci. Technol., 25, p. 1559Vijayaraghavan, K., Prabu, D., (2006) J. Hazard. Mater. B, 137, p. 558Wolborska, A., (1989) Water Res., 23, p. 85Wu, X., Zhao, F., Chen, M., Zhang, Y., Zhao, C., Zhou, H., (2008) Adsorpt. Sci. Technol., 26, p. 14
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