Removal of Emulsified and Dissolved Traces of Organic Compounds from Industrial Wastewaters Using Natural and Synthesized (NaA and NaM) Zeolites

Document Type: Research Article

Authors

Department of Applied Chemistry, Islamic Azad University Tabriz-Branch, P.O. Box 1658, Tabriz, I.R .IRAN

Abstract

The main object of this study was to compare the natural and synthetic( NaA and NaM) zeolites as absorbents in removing emulsified and dissolved traces of organic compounds, which appear in the wastewater of  power plants, refinery and petrochemical complexes.  The specific objectives of the work was: a) to select the best species that have the highest amount of absorption; b) to measure the rate of absorption of traces of organic compounds and emulsions on the natural and synthesized zeolites; c)to establish the absorption isotherms for the organics and emulsions with selected samples; d) to select readily available regenerants, and e) to examine the pH dependence of the process and to establish a simple and practical method to detect and to measure the pollutants after the treatment process. The BOD and COD of the treated and feedwaters were compared.

Keywords

Main Subjects


[1] Bahorshy, M.S., Impact of Foam on Textile Wastewater Treatment, American Dyestuff Reporter, 79, 26(1979).

[2] Mckay, C., Ottcburn, M.S., and Sweeny, A.G., The Removal of Color from Effluent Using Various Adsorbents – IV Silica, Equilibrium and Column Studies, Water Research, 14, 12(1979).

[3] Mancy, K.H., Gates, W.E., Ege, J.D., and Deb, P.K., The Adsorption Kinetics of ABS on Fly Ash, 19th  Industrial Waste Conference, Purdue Univ., West Lafayette, Indiana, 146(1964).

[4] Miller, W.W., Valoras, N. and Letey, Movement of Two Noanionic Surfactant in Wettable and Water – Repellent Soils, Soil Sci, Soc. Amer. Proc., 39, 11(1975).

[5] Rozen Milton J., Surfactants and Interfacial Phenomena, John Willey & Sons Inc., 2nd Ed. (1989).

[6] Waymon, C.H. and Rovertson, J.B., Adsorption of ABS on Soil Minerals, 18th Ed. Indiana, 253(1963).

[7] Hossein Ganjidoust, Removal of Detergent from Wastewater Industries by Sorption on Soil Minerals. Environmental Engineering Dept. of Tarbiat Modarres University, Tehran, Iran, Printed in Conference Booklet (Department’s Archives) (1992).

[8] Apripov, E.A. (Inst. Khim., Tashkent, USSR)., Research on Adsorption Processes and   Natural Sorbents, Uzb. Khim. Zh., 4, 11(Russ)(1990).

[9] Khanturgaev. G.A.; (Vost – Sib. Tekhnol. Inst., Ulan– Udc, USSR), Use of Buryat Zeolites for Removal of Petroleum Products from Wastewater, Kompleksn. Ispol’z. Miner. Syrya 2, 65(Russ)(1990).

[10] Khoklova, A.D., Nemtsev, V.A., (Tarnopols Kaya, M.G.; USSR). Selection of Mineral and Carbon Sorbents for Removal of Petroleum Products from Wastewater or Precoatcd Filters, Fiz. -Khim. Ochistkai Metody Anal. prom. Stoch., Vod. M., 5(1988).

[11] Evdokimov, A. Ya, Eltekov, Yu. A., Falkovich, M.I., Martsin, I.I. (MING, USSR). Evaluation of the Activity of Sorbents for Regeneration of Oil, Khim. Tekhnol. Topl. Masel, 10, 6(Russ)(1990).

[12] Spivakova, O.M., Servyergov, L.B., Dubrovskaya, N.V. Fedorov, N.P., (LIST, Lenningrad, USSR). Treatment of Wastewater by Granulated Sorbents from Bentonite Clays, Vodosnobzh. Sanit. Tekh, 6, 23(Russ)(1989).

[13] Modirshahla N., Tabatabaii S.M., Removal of Emulsified and Dissolved Organics from Industrial Wastewaters Using Fixed Bed Natural Unmodified Inorganic Porous Minerals, 2 ed. International Mamedaliev Petrochemistry Conference, (An Oral Presentation), Baku Azarbaijan, September (2000).

[14] Modirshahla N., Tabatabaii S.M., Removal of Emulsified and Dissolved Traces of Organics from Industrial Wastewaters  Using  Fixed  Bed  Natural Unmodified Inorganic Porous Minerals, Processes in Petrochemistry and Petroleum Refinery, 2, 240(2000).

[15] Personal Communication with Professor Anavar Khodiev, from Azarbaijan Academy of Chemical Science and Technology, Baku, Azarbaijan Republic, Institute of Chemical Engineering.

[16] Mark J. Hammer, Water and Wastewater Technology, Si Version, Second Edition, Prentice – Hall International Inc., New York, pp. 320-328(1991).

[17] Stanley K.Manahan, Environmental Chemistry, Third Edition, Mc. Craw Hill International Inc, (1997).

[18] Beyer, H.K., (Central Institute of Chemistry, Hungarian Academy of Sciences, Pusztaszeri ut, 59-67, H-1525, Budapest, Hungary), Nagy, J.B., (Catalysis Lab., Univ. of Notre-Dame, Rue de Brussels, 61, B-5000, Namur, Belgium), Editors, in “Catalysis by Microporous Inorganic Mineral Materials”, Proceeding of zeocat, Published by Elsevier Science B.V, Sara Burgerhatstrraat 25, P,O. Box 211, 1000, AE Amsterdam, the Netherlands., July 9, (1995).

[19] Dabrowski,(Faculty of Chemistry, Marie Curie Skodowska University, Lublin, Poland), Mann, V.A.B., (Institute of Surface Chemistry, Academy of Sciences of Ukrain, Kiev, Ukrain.), Catalysis by Microporous Inorganic Minerals, Proceedings of Zeocat Szonbathely, Hungary, July 9 (1996).