Lewatit FO36 resin was covered with Fe (III) nano-particles, and it was used as a new way to eliminate phosphate. Column experiments were carried out in 11 stages in fixed bed columns with constant flow rate of 9 ml/min and the empty bed contact time (EBCT) of 2.1min. The adsorption capacity was calculated for different concentration of phosphate solutions. After resin was regenerated by using NaOH and NaCl solutions, the adsorption capacity of resin was computed for 6mg/L of phosphate, typically. The adsorption capacity of resin was checked again a typical concentration of phosphate. The adsorption capacity measurements of regenerated resin show that the concentration of phosphate reached to 1.6mg/g after an 8.5% decrease when the initial concentration of phosphate is 6 mg/L. Competition of anions with phosphate was analyzed using chloride, sulfate, bicarbonate and a combination of these anions. Finally the effect of resin in phosphate removal was studied for a typical real sample, and the data was analyzed using statistical software (SPSS 13). The statistical results indicated that Cl^(-), SO4_x000D_ 3-, HCO3^(-) and combined competing anions did not have a strong influence on the phosphate removal efficiency.

Phosphate Removal Lewatit FO36 Competing Anions Adsorption

Khan FA, Ansari AA, Bot. Rev., 71, 449 (2005)
Yoshida H, Galinada WA, AIChE J., 48(10), 2193 (2002)
Liu RX, Guo JL, Tang HX, J. Colloid Interface Sci., 248(2), 268 (2002)
Ugurlu A, Salman B, Environ. Int., 24, 911 (1998)
Chitrakar R, Tezuka S, Sonoda A, Sakane K, Ooi K, Hirotsu T, J. Colloid Interface Sci., 297(2), 426 (2006)
Patureau D, Helloin E, Rustrian E, Bouchez T, Delgenes JP, Moletta R, Water Res., 35, 189 (2001)
Gieseke A, Arnz P, Amann R, Schramm A, Water Res., 6, 501 (2002)
Adin A, Soffer Y, Ben Aim R, Water Sci. Technol., 38, 27 (1998)
Blouin GM, Rindt DW, Moore OE, J. Agric. Food Chem., 9, 801 (1971)
de-Bashan LE, Bashan Y, Water Res., 38, 4222 (2004)
Erik H, Stability constants of metal-ion complexes part A: Inorganic ligands, Pergamon Press, Oxford (1982)
Yeoman S, Stephanson T, Lester JN, Perry R, Environ. Pollution., 49, 183 (1988)
Yeon KH, Park H, Lee SH, Park YM, Lee SH, Iwamoto M, Korean J. Chem. Eng., 25(5), 1040 (2008)
Kasama T, Watanabe Y, Yamada H, Murakami T, Appl. Clay Sci., 5, 67 (2004)
Zhang CC, Li X, Pang JX, J. Appl. Polym. Sci., 82(7), 1587 (2001)
Li B, Ning P, Yang Y, Nitrogen and Phosphate removal by zeolite - Rare earth adsorbents, International Conference on Environmental Science and Information Application Technology, July (2009)
Chen JG, Kong HN, Wu DY, Hu ZB, Wang ZS, Wang YH, J. Colloid Interface Sci., 300(2), 491 (2006)
Ning P, Bart HJ, Li B, Lu X, Zhang Y, J. Environ. Sci., 20, 670 (2008)
Geelhoed JS, Hiemstra T, Van Riemsdijk WH, Geochim.Cosmochim. Ac., 61, 2389 (1997)
Blaney LM, Cinar S, SenGupta AK, Water Res., 41, 1603 (2007)
Cumbal L, Greenleaf J, Leun D, SenGupta AK, React. Funct.Polym., 4, 167 (2003)
Reddy KH, Reddy AR, J. Appl. Polym. Sci., 8, 414 (2003)
Rafati L, Mahvi AH, Asgari AR, Hosseini S, Int. J. Environ.Sci. Technol., 7, 147 (2010)
Hubicki Z, Wolowicz A, J. Hazard. Mater., 164(2-3), 1414 (2009)
Gode F, Pehlivan E, J. Hazard. Mater., 136(2), 330 (2006)
Jeon C, Holl WH, Water Res., 37, 4770 (2003)
Boldaji MR, Nabizadeh R, Dehghani MH, Nadafi K, J. Environ. Sci. Health A Tox Hazard. Subst. Environ. Eng., 45, 946 (2010)
Llosa Tanco MA, Pacheco Tanaka DA, Flores VC, Nagase T, Suzuki TM, React. Funct. Polym., 53, 91 (2002)
Liu HL, Sun XF, Yin CG, Hu C, J. Hazard. Mater., 151(2-3), 616 (2008)
Antelo J, Avena M, Fiol S, Lopez R, Arce F, J. Colloid Interface Sci., 285(2), 476 (2005)
Habuda-Stanic M, Kalajdzic B, Kules M, Velic N, Desalination, 229(1-3), 1 (2008)
Atafar Z, Mesdaghinia A, Nouri J, Homaee M, Yunesian M, Ahmadimoghaddam M, Mahvi AH, J. Environ. Monit. Assess., 160, 83 (2010)
Lanxess AG, Lewatit FO, Ion exchange/iron oxide hybrid system. Lanxess company, Ref Type: Catalog (2008)
APHA/AWWA/WEF, Standard methods for the examination of water and wastewater, 21st Ed., Washington DC (2005)