REFERANCES: Abd El-Rahman, E. M., (1990). Studies on some thermophilic bacterial strains. Ph.D. Thesis, Al-Azhar Univ., Fac. of Sci., Bot.and Microbiol. Dept., Cairo, Egypt. AbouZeid, A. M. (1997). Production, purification and characterization of an extracellular alpha-amylase enzyme isolated from Aspergillus flavus. Microbios. 89(358): 55-66. Amirul, AA, Khoo S. L., Nazalan M. N., Razip M. S., and Azizan M. N., (1996). Purification and properties of two forms of glucoamylase from Aspergillus

doi:10.21608/auber.2004.150612

(2004). REFERANCES: Abd El-Rahman, E. M., (1990). Studies on some thermophilic bacterial strains. Ph.D. Thesis, Al-Azhar Univ., Fac. of Sci., Bot.and Microbiol. Dept., Cairo, Egypt. AbouZeid, A. M. (1997). Production, purification and characterization of an extracellular alpha-amylase enzyme isolated from Aspergillus flavus. Microbios. 89(358): 55-66. Amirul, AA, Khoo S. L., Nazalan M. N., Razip M. S., and Azizan M. N., (1996). Purification and properties of two forms of glucoamylase from Aspergillus. EKB Journal Management System, 7.1(7.1), 101-110. doi: 10.21608/auber.2004.150612

. "REFERANCES: Abd El-Rahman, E. M., (1990). Studies on some thermophilic bacterial strains. Ph.D. Thesis, Al-Azhar Univ., Fac. of Sci., Bot.and Microbiol. Dept., Cairo, Egypt. AbouZeid, A. M. (1997). Production, purification and characterization of an extracellular alpha-amylase enzyme isolated from Aspergillus flavus. Microbios. 89(358): 55-66. Amirul, AA, Khoo S. L., Nazalan M. N., Razip M. S., and Azizan M. N., (1996). Purification and properties of two forms of glucoamylase from Aspergillus". EKB Journal Management System, 7.1, 7.1, 2004, 101-110. doi: 10.21608/auber.2004.150612

(2004). 'REFERANCES: Abd El-Rahman, E. M., (1990). Studies on some thermophilic bacterial strains. Ph.D. Thesis, Al-Azhar Univ., Fac. of Sci., Bot.and Microbiol. Dept., Cairo, Egypt. AbouZeid, A. M. (1997). Production, purification and characterization of an extracellular alpha-amylase enzyme isolated from Aspergillus flavus. Microbios. 89(358): 55-66. Amirul, AA, Khoo S. L., Nazalan M. N., Razip M. S., and Azizan M. N., (1996). Purification and properties of two forms of glucoamylase from Aspergillus', EKB Journal Management System, 7.1(7.1), pp. 101-110. doi: 10.21608/auber.2004.150612

REFERANCES: Abd El-Rahman, E. M., (1990). Studies on some thermophilic bacterial strains. Ph.D. Thesis, Al-Azhar Univ., Fac. of Sci., Bot.and Microbiol. Dept., Cairo, Egypt. AbouZeid, A. M. (1997). Production, purification and characterization of an extracellular alpha-amylase enzyme isolated from Aspergillus flavus. Microbios. 89(358): 55-66. Amirul, AA, Khoo S. L., Nazalan M. N., Razip M. S., and Azizan M. N., (1996). Purification and properties of two forms of glucoamylase from Aspergillus. EKB Journal Management System, 2004; 7.1(7.1): 101-110. doi: 10.21608/auber.2004.150612

	REFERANCES: Abd El-Rahman, E. M., (1990). Studies on some thermophilic bacterial strains. Ph.D. Thesis, Al-Azhar Univ., Fac. of Sci., Bot.and Microbiol. Dept., Cairo, Egypt. AbouZeid, A. M. (1997). Production, purification and characterization of an extracellular alpha-amylase enzyme isolated from Aspergillus flavus. Microbios. 89(358): 55-66. Amirul, AA, Khoo S. L., Nazalan M. N., Razip M. S., and Azizan M. N., (1996). Purification and properties of two forms of glucoamylase from Aspergillus
Assiut University Bulletin for Environmental Researches
Article 12, Volume 7.1, Issue 7.1, March 2004, Page 101-110 PDF (698.67 K)
Document Type: Original Article
DOI: 10.21608/auber.2004.150612
View on SCiNiTO
Abstract
ABSTRACT : Adsorption of some heavy metal ions such as lead, Pb(II), Copper, Cu(II), Iron, Fe(III), Manganese, Mn(II) and Zinc, Zn(II) by sorption on kaolinite clay was investigated. Kaolinite clay is considered as a good ion exchanger since it is easily available at low cost and high capacity. The effects of contact time, pH, volume of an aqueous to mass of kaolinite clay and concentration of metal ions were studied. Data show that kaolinite clay favorably adsorbs the current heavy metal ions and their adsorption are belong to Freundlich isotherm model. أظهر استخدام طفلة الکاولينيت فى إزالة بعض أيونات المعادن الثقيلة مـثل (الرصاص– النحاس– الحديد – المنجنيز – الزنک) نتائج طيبة. وتعد الطفلة من المواد الطبيعية ذات التکلفة الرخيصة والتى لها القدرة على الاستبدال الأيونى والامتزاز. ولقد أظهرت دراسة العوامل المختلفة المؤثرة على عملية الإزالة أن زمن تشبع عينات الطفلة يختلف من عنصر إلى أخر. کما أوضحت الدراسة أن عملية الإزالة اعتمدت على الأس الهيدروجينى pH وترکيز هذه العناصر وکذلک نسبة الوسط المائى إلى وزن الطفلة. ومن خلال هذه الدراسة وجد أن ملائمة طفلة الکاولينيت لإزالة هذه العناصر يتبع الترتيب الآتى : Cu²⁺ > Fe³⁺> Pb²⁺ = Mn²⁺ >Zn²⁺ وأثبتت النتائج أن امتزاز هذه العناصر على سطح طفلة الکاولينيت يتم من خلال تکوين طبقة واحدة مفردة أى يتبع نظام Freundlich isotherm.


References
REFERENCES: 1-Ives, M., Rodda, J., Edmonds, A. and V.Long “Comparison of Methods for Measuring Corrosion in Drinking Water”. A paper presented at the NACE conference, Ottawa, Canada, (1999). 2-Hedge R.E.M., and Mclellan M., Archaeometry, 18,2, 203, (1976). 3- Giles C.H., MacEvan, T.H., Nakhwa. S.N. and Smit, D., J. Chem. Soc., 3973, (1960). 4-Wolfrum, C. and Fritz, P.[assessment of experimental research techniques for the investigation of radionuclide migration in aquifers} Nucl. Sci. Technol., CEC. Report Eur- 13265 EN (1991). 5- Willey B.F. and Jennings H., J.AWWA, 55,729, (1963). 6- Das, N.C., and Bandyopadhyay, M., "Appi. Clay Sci. "221-231, Bii, Dhaka, Bangladesh, (1991). 7- McKay G., "Use of Adsorbents for The Removal of Pollutants from Waste waters", CRC Press., London (1996). 8- Bodek I., Lyman W.J., Reehl W.F., and Rosenblatt, “Environmental Inorganic Chemistry, Properties, Processes, and Estimation Methods”, Pergamon Press, New York, (1988). 9-Huang C.P., Elliot H.A., and Ashmead R.M., “ Interfacial Reactions and The Fate of Heavy Metals in Soil- Water systems”, J. Water Pollut. Control Fed.,49,745-56( 1979). 10-Weber T.W and chakrauouti R.K., Am. Inst. of chem., Engrs. J. 20, 228(1974). 11-Piccinini N. and Ferrero F. Radial, “Clean Environ., Proc. Int. Symp.”, IAEA – SM 194/407., 249. (1975). 12- O’Coonor J.T. and Renn C.E.J., Amer. Water Ass., 56, 1055 (1964). 13-Rogoshewski, P., Bryson, H. and Wagner, K., "Remedial Action Technology for Waste Disposal Sites" Park Ridge, New Jersy, U.S.A. (1983). 14-V.Kireev, Physical chemistry, Mir pubishers, Moscow, P 362,(1979).
Statistics Article View: 171 PDF Download: 159