MODEL KESETIMBANGAN ADSORPSI Cr DENGAN RUMPUT LAUT

Enny Kriswiyanti Artati, Y.C. Danarto

Abstract

The negative effect of industries growth is their waste  that generates contamination to environment. Cr in water above the concentration’s limit  is one kind of the waste. The adsortion of Cr from aqueous solutions by algae biomass was studied.  The aim of this research was to find the exact adsorption isotherm model to predict the single system adsorption by algae biomass. The batch sorption experiments was carried out in a stirred reactor equipped by thermometer, electric heater and condensor.  Weighted amounts (15 to 20 g) of algae were intoduced into the reactor, to which 250 ml of Cr solution were added.  The amount of Cr accumulated on algae was calculated as the difference between rhe amount present in control experiments and that remaining in solution after equilibrium with biomass  After the equlibrium was attained, the Cr concentration was analized using AAS.  The variables, observed in this experiment were the temperature and pH of the solution. Three adsorption isotherm models, namely Henry isotherm model, Freundlich isotherm model and Langmuir isotherm model were fitted to the experimental data.  The result  got Freundlich isotherm model which had least average relative error.

Full Text:

PDF

References

Adhiya, J., Chai, X., Sayre, R.T., and Traina, S.J., 2002, "Binding of Aqueous Cadmium by the Lyophilized Biomass of Chlaymydomonas reinhardtii", Colloids and Surfaces A: Physicochem. Eng. Aspects, 210, 1-11

Alberty, R.A. and Daniels,F., 1992, “ Kimia Fisika”, 5th ed., Erlangga, Jakarta

Aldor, I., Fourest, E., and Volesky, B., 1992, “Desorption of Cadmium from Algal Biosorbent”, The Canadian Journal of Chemical Engineering, 73, 516-522

Al-Duri,B., 1995, A Riview in Equilibrium in Single and Multicomponent Liquid Adsorption System, Review in Chemical Engineering, 11, 101-143

Chmielewska, E., and Medved, J., 2001, “Bioaccumulation of Heavy Metals by Green Algae Cladophora glomerata in a Refinery Sewage Lagoon”, Croatia Chemica Acta, 74, 135-145

Do,D.D, 1998, Adsorption Analysis : Equilibria and Kinetics, vol 1, 64-103, Imperial, College Press, London

Galiatsatou, P., Metaxas, M., and Rigopoulou, V.K., 2002, "Adsorption of Zinc by Activated Carbon Prepared from Solvent Extracted Olive Pulp", Journal of Hazardous Materials, B91, 187-203

Jalali, R., Ghafourian, H., Davarpanah, S.J., and Sepehr, S., 2002, "Removal and Recovery of Lead Using Nonliving Biomass of Marine Algae", Journal of Hazardous Material, B92, 253-262

Juang, R.S., Wu, F.C., and Tseng, R.L., 2002, "Characterization and Use of Activated Carbon from Bagasse for Liquid-phase Adsorption", Colloids and Surfaces A: Physicochem. Eng. Aspects, 201, 191-199

Krishnan, K.A. and Anirudhan, T.S., 2002, "Removal of Mercury(II) from Aqueous Solutions and Chlor-alkali Industry Effluent by Steam Activated and Sulphurised Activated Carbon Prepared from Bagasse Pith: Kinetics and Equilibrium Studies", Journal of Hazardous Materials, B92, 161183

Noll, K.E., Goynaris, V., and Hou,S.W., 1992, Adsorption Technology for Air and Water Pollution Control, 1ed, 21-22, Lewis Publisher, Inc., New York

Perry, R.H. and Green, D., 1984, "Perry's Chemical Engineers Handbooks", 6th ed., McGraw Hill Book Co., New York

Ravindran, V., Stevens, M.R., Badriyha, B.N., and Pirbazari, M., 1999, "Modelling the Sorption of Toxic Metals on ChelantImpregnated Adsorbent", AIChE Journal, 45, 1135-1146

Sadhori, S.N., 1995, “ Budidaya Rumput Laut”, p. 29, Balai Pustaka, Jakarta

Tim Penulis PS., 1997, “ Budidaya, Pengolahan dan Pemasaran Rumput Laut”, Penebar Swadaya, Jakarta

Treyball, R.E., 1981, Mass Transfer Operations”, 3rd ed., McGraw-Hill, Singapore

Volesky, B., 2000, "Biosorption: Application Aspects-Process Simulation Tools", Department of Chemical Engineering, McGill University, Montreal

DOI: https://doi.org/10.20961/ekuilibrium.v6i2.49615

Refbacks

  • There are currently no refbacks.