ADSORPTION OF Cr(VI) ON BLACK WATER

https://doi.org/10.22146/ijc.21884

Rasti Januarita(1*), Herdiansyah Herdiansyah(2)

(1) Pendidikan Kimia FKIP Unlam Banjarmasin
(2) FMIPA Unlam Jl. A. Yani Km 35,5 Banjarbaru 70714
(*) Corresponding Author

Abstract


The effect of initial concentration of Cr(VI) on adsorption to black water of Gambut, District of Banjar, South Borneo has been investigated, as well as interaction between Cr(VI) species and functional black water organic fraction.

The initial work was optimization of Cr(VI) determination using UV-Visible Spectrophotometry with diphenylcarbacide as complexing agent and preparation of black water using mixture of 2% HCl and 5% HF with HCl-HF ratio of 1 : 1 (v/v). The quantity of Cr(VI) species adsorbed on black water was calculated by determining the amount of Cr(VI) species in solution before and after interaction. The functional groups in interaction between Cr(VI) species and black water organic fraction was studied qualitatively using infrared spectroscopy.

The results showed that optimum condition for Cr(VI) species analysis using UV-Visible spectrophotometry with diphenylcarbacide as complexing agent was at wave length of 540 nm, pH 1,5, 15 - 60 minutes at which complex remain stable, and minimum mol ratio of diphenylcarbacide : Cr(VI) 45 : 1, and has a sensitivity of 1.134 mg/L and detection limit of 0.00495 mg/L. The analysis was not affected by the presence of Cr(III) in concentration less than 40 times of Cr(VI) concentration. After treatment with HCl-HF the quantity of black water organic fraction showing humic acid properties decreased 0,1998 percent. Organic fraction of black water used adsorpted Cr(VI)with capacity of 4,050 mg/g.


Keywords


Adsorption; Cr(VI); Black Water

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References

[1] Haryadi, 1996, “Heavy Metal Content in Industrial Wastes in Indonesia, in Symposium and Workshop on Heavy Metal Bioaccumulation”, IUC Biotechnology, UGM, Yogyakarta, September 18-20 1996.

[2] Klaasen, C.D., Amdus, M.O. dan Doull, J., 1986, “Toxicology, the Basic Science of Poison”, 3th ed., McMillan, New York.

[3] Subramanian, K.S., 1988, “Determination of Chromium (III) by Amonium Pyrolidine Carboditionate Methyl Isobutil Ketone with Furnace Atomic Spectrometry”, Anal. Chem., 60: 11-15.

[4] Rai, D., Sass, B.M., dan More, D.A., 1987, Inorg. Chem., 65: 2590-2595.

[5] Sperling, M., Xu, S. dan Welz, B., 1992, Anal. Chem., 64: 3101-3108.

[6] Herdiansyah, 1997, Rawa (Reklamasi dan Lingkungan Hidupnya), FKIP, Unlam Banjarmasin.

[7] Azzouzi, M. El., Bouhaouss, A., and Ferhat, M., 2000, Proceedings IHSS 10, 24-28 July 2000, Toulouse, France, Vol. 1, pp 607-609.

[8] Vijarnson, P., 1996, “Peatlands in Southeast Asia : a Regional Perspective” (dalam Maltby, E., Immirzi, C.P. dan Safford, R.J., 1996, “Tropical Lowland Peatlands of Southeast Asia”), IUCN, Gland Switzerland, pp 75-92.

[9] Broadbent, F.E., dan Bradford, G.R., 1952, J. Soil Sci., 74, 447-457.

[10] Saadi, Parham, Bambang Rusdiarso, dan Yateman Arryanto, 1995, Kajian Tentang Pemanfaatan Gambut sebagai Adsorben Senyawa Merkuri (II) Anorganik dari Larutan. Thesis Magister Sains, Universitas Gadjah Mada, Yogyakarta.

[11] Tan, K.H., 1986, “Degradasi Mineral Tanah oleh Asam Organik” (dalam Huang, P.M. dan Schnitzer, M., 1986, “Interaksi Mineral Tanah dengan Organik Alami dan Mikroba”, Terjemahan : Goenadi, D.H., 1997), Gadjah Mada University Press, Yogyakarta, hal. 2-40.

[12] Stevenson, F.J., 1994, “Humus Chemistry : Genesis, Composition, Reactions”, John Wiley & Sons Inc., New York.

[13] Oscik, J., 1982, Adsorption, John Wiley, Chichester.

[14] Gadd, G.M., 1990, Fungi and Yeasts for Metal Accumulation, In Microbial Mineral Recovery, Ehrling, H.L. and H. L. Brierley (eds.), Mc Graw Hill Publishing Co., New York. pp 247-276.

[15] Hughes, M.N., and R. K. Poole, 1989, Metal and Microorganisme, Chapman and Hall, London.

[16] ______, 1994, “Environmental Soil Science”, Marcel Dekker Inc., New York.

[17] ______, 1998, “Dasar-Dasar Kimia Tanah”, (terj. :Didiek Hadjar Goenadi), Gadjah Mada University Press, Yogyakarta.

[18] Shaw, D.J., 1982, Introduction to Colloid and Surface Chemistry, 3rd edition, Butterworths & Co. Ltd., London.

[19] Pilarski, J., Waller P. dan Pickering, W., 1996, WAPLAC, Volume 84/1-2 : 51-59.



DOI: https://doi.org/10.22146/ijc.21884

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