[1] li Q., Zhai J., Zhang W., Wang M., Zhou J., Kinetic Studies of Adsorption of Pb(II),Cr(II)and Cu(II) from Aqueous Solution by Sawdust and Modified Peanut Husk, J. Hazard. Mater, B141, p. 736 (2007).
[2] Ricou P., Lécuyer I., Le Cloirec P., Removal of Cu2+, Zn2+ and Pb2+ by Adsorption Onto Fly Ash and Fly Ash/Lime Mixing, Water Science and Technology, 39, p. 10 (1999).
[4] Raungsomboon S., Chidthaisong A., Bunnag B., Inthorn D., Harvey N.W., Removal of Lead (Pb2+) by the Cyanobacterium Gloeocapsa sp., Bioresource Technology, 99, p. 5650 (2008).
[5] Hammaini A., González F., Ballester A., Blázquez M.L., Muñoz J.A., Biosorption of Heavy Metals by Activated Sludge and Their Desorption Characteristics, Journal of Environmental Management, 258, p. 419 ( 2007).
[6] ادیبی، مسیح ا...؛ اخلاقپور، شهرام؛ فخرایی، حسین؛ تصفیه فلز سرب توسط سیستم لجن فعال، چهارمین کنگره ملی مهندسی شیمی ایران، دانشگاه صنعتی شریف، تهران(1377).
[7] WHO Lead in Wastewater, "Background Document for Development of WHO, Guidelines for Waste-Water Quality", Geneva, World Health Organization, (WHO/SDE/WSH/05.08/55), (2005).
[8] Bruce I.J., Taylor J., Todd M., Daviesb M.J., Borioni E., Sangregorio C., Sen T., Synthesis Characterisation and Application of Silica-Magnetite Nanocomposites, Journal of Magnetism and Magnetic Materials, 68, p. 145 (2004).
[9] Reynolds T.D., Richards P.A., "Unit Operations and Processes in Environmental Engineering", Second Edition, PWS Pub. Co., (1929).
[10] Hu J., Chen G., Lo I.C., Removal and Recovery of Cr (VI) from Wastewater by Maghemite Nanoparticles, Water Research, 74, p. 4528 (2005).
[11] Mayoa J.T., Yavuz C., The Effect of Nanocrystalline Magnetite Size on Arsenic Removal, Science and Technology of Advanced Materials, 88, p. 71 (2007).
[12] Miessler G.L., Tarr D.A., "Inorganic Chemistry", Second Edition, Pearson Education, (2002).
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