Buradasınız

LİNYİT KÖMÜRLERİNDEN ELDE EDİLEN AKTİF KÖMÜR İLE SULU ÇÖZELTİLERDEN Cr(VI) UZAKLAŞTIRILMASI

REMOVAL OF Cr(VI) FROM AQUEOUS SOLUTION BY ACTIVATED COAL FROM LIGNITE COAL

Journal Name:

Publication Year:

Abstract (2. Language): 
Activated coal produced from Ağaçlı Lignite coal was used to remove Cr(VI) from aqueous solutions. The adsorption of Cr(VI) was studied as a function of initial concentration, time, pH, adsorbent concentration and temperature. The adsorption data were found to fit to Langmuir and Freundlich isotherms. Lagergren equation was used to calculate the adsorption rate. The amount of Cr(VI) adsorbed was increased with decreasing pH and decreased with increasing temperature.
Abstract (Original Language): 
Ağaçlı Linyit kömürlerinden elde edilen aktif kömür, sulu çözeltilerden Cr(VI) uzaklaştırmak için kullanılmıştır. Cr(VI) adsorpsiyonu başlangıç konsantrasyonu, zaman, pH, adsorbent konsantrasyonu ve sıcaklığın fonksiyonu olarak çalışılmıştır. Adsorpsiyon verileri Langmuir ve Freundlich izotermlerine uydurulmuştur. Adsorpsiyon hız sabitini hesaplamak için Lagergren eşitliği kullanıldı. Adsorbe edilen Cr(VI) miktarı pH değerinin azalması ile artmış, sıcaklığın artması ile azalmıştır.
401
407

REFERENCES

References: 

Ajmal, M., Ali
Khan
, R, and Siddiqui, B. 1996. Studies On Removal and Recovery of Cr(VI) From Electroplating Waste. Wat. Res, Vol. 30, pp.1478¬1482.
Alaerts, G. J., Jittaturant, V., and Kelderman, P. 1989. Use of Coconut Shell Based Activated Carbon for Chromium (VI) Removal. Water Sci. Technol, 21, 1701-1704.
Gad, C. S. 1989. Acute and Chronic Systemic Chromium Toxicity. Sci. Tot. Environ. 86, pp.
149-157.
Huang, Chin-Pao., and Wu, Min-Hwang. 1975. Chromium Removal By Carbon Adsorption. Journal
WPCF, 47 (10), 2437-2446.
Low, K. S., Lee, C. King, A. Y. 1997. Chromium(VI) Sorption on Quaternized Rice Hull. J. Environ. Sci. Health, Vol. A32(6), pp. 1849-1860.
Kotas, J. and Stasicka, Z. 2000. Chromium Occurence In The Environment and Methods of Its Speciation, Environmental Pollution, 107, pp.
263-283.
Krıshna,
B
. S., Murty, D. S. R., Prakash, B. S. Jai,
2000. Thermodynamics of Chromium(VI) Anionic Species Sorption onto Surfactant-Modified Montmorillonite Clay. Journal of Colloid and Interface Science, Vol. 229, pp. 230-236.
Mahramanlıoğlu,.M, Gülensoy, H., Kızılcıklı, İ. 1998. Aktifleştirilmiş Linyit Kömürleri ile Sulu Çözeltilerinden Fenol'ün Adsorbsiyonu. Pamukkale Üniversitesi, Mühendislik Fakültesi, Mühendislik Bilimleri Dergisi, 4 (1-2), 585-588.
Mahramanlıoğlu, M., Kızılcıklı, İ., Biçer, İ. Ö., Kösen, G., and Tunçay, M. 1998a. The Removal of Phenoxyacetic Acids From Effluents Using Activated Carbons Produced From Used Tires. 9th International Congress Pesticide Chemistry, Volume Two, Topics 5-8, August 1998, London.U.K.
Namasıvayam, C. and Yamuna, R. T. 1999. Studies on Chromium (III) Removal from Aqueous Solution by Adsorption onto Biogas Residual Slurry and its Application to Tannery Wastewater Treatment Water. Air and Soil Pollution, Vol. 113, pp. 371¬384.
Özer,
D.
, and Özer, A. 1998. The Adsorption of Nickel (II), Copper (II) and Chromium (VI) Ions On Cladophora Crispata, Chimica Acta Turcica, (26),
27-31.
Özer,
A.
, Tümen, F, and Bildik, M. 1997. Cr(VI)
Removal From Aqueous Solutions By Depectinated Sugar Beet Pulp. Chimica Acta Turcica. (25),
113-118.
Perez-Candela, Manuel, Martin-Martinez, Jose M., Torregrosa-Maciâ, Rosa. 1995. Chromium(VI) Removal With Activated Carbon, Water Research,
29 (9), 2174-2180.
Periasamy, K., Sirinivasan, K., and Murugan, P. R., 1991. Studies on Chromium (VI) Removal By
Mühendislik
Bilimler
i Dergisi 2001 7 (3) 401-407
406
Journal of Engineering Sciences 2001 7 (3) 401-407
Linyit Kömürlerinden Elde Edilen Aktif Kömür İle Sulu Çözeltilerden Cr(VI)... M. Mahramanlıoğlu, İ. Kızılcıklı, Ö. Özgen
Activated Ground-nut Husk Carbon. Ind. J. Environ.
Health. 33 (4), 433-439.
Rajı, C. and Anirudhan, T. S. 1998. Batch Cr(VI) Removal By Polyacrylamide-Grafted Sawdust. Kinetics and Thermodynamic. Wat. Res, 32 (12),
3772-3780.
Razvıgorova, M., Budinova, T., Petrov, N. and Mınkova, V. 1998. Purification of Water By Activated Carbons From Apricot Stones, Lignites and Anthracite", Wat. Res. 32 (7), 2135-2139.
Selomulya, C., Meeyoo, V. and Amal, R. 1999. Mechanisms of Cr(VI) Removal from Water By Various Types of Activated Carbons. Journal of Chemical Technology and Biotechnology,
(74), 111-122.
Sengupta, A. K. and Clifford, D. 1986. Important Process Variables in Chromate Ion Exchange,
Environ. Sci. Technol., (20), 149-155.
Sharma, D. C. and Forster, C. F. 1993. Removal of
Hexavalent Chromium Using Sphagnum Moss Pea.
Water Research, 27 (7), 1201-1208.
Singh, Vinay K. and Tıwarı, Prem N. 1997. Removal and Recovery of Chromium(VI) From Industrial Waste Wate. J. Chem. Tech. Biotechnol.,
(69), 376-382.
Srinivasan, K., Balasubramanian, N. and Ramakrishnan, T. V. 1988. Studies on Chromium Removal By Rise Husk Carbon. Ind. J. Environ.
Health. 30 (40), 376-387.
Tan, W. T., Oui, S. T., Lee, C. K.
1993
. Removal of Chromium(VI) From Solution By Coconut Husk and Palm Pressed Fibre. Environmental Technology, (14), 277-282.
Zachara, John M., Girvin, Donald C., Schmidt, Ronald L., and Resch, C. Thomas. 1987. Chromate Adsorption on Amorphous Iron Oxyhydroxide In The Presence of Major Groundwater Ion. Environ.
Sci. Technol, (21), 589-594.

Thank you for copying data from http://www.arastirmax.com