DÜŞÜK MALİYETLİ ADSORPLAYICILAR KULLANILARAK SULU ORTAMLARDAN FOSFAT GİDERİMİNİN ARAŞTIRILMASI

Bu çalışmada düşük maliyetli farklı atık maddeler kullanılarak atıksulardaki fosfatın giderimi kesikli bir sistemde incelenmiştir. Fosfat giderimine adsorplayıcı derişimi ve fosfat derişiminin etkisi yüksek fosfat giderimi sebebiyle yumurta kabukları ve ponza taşı kullanılarak araştırılmıştır. Yumurta kabukları ve ponza taşı ile fosfat adsorpsiyonu mekanizması için deneysel verilere Langmuir ve Freundlich modeli uygulanmıştır. Her iki modelin deneysel verilerle uyum içinde olduğu görülmüştür. Langmuir modeli ile yumurta kabukları ve ponza taşı için elde edilen maksimum adsorpsiyon kapasitesi (qmax) sırası ile 19,23 mg/g (R2=0,943) ve 32,26 mg/g’dır (R2=0,894). Freundlich modeli ile elde edilen heterojenlik faktörü (1/n) değeri yumurta kabukları için 0,245, ponza taşı için 0,383 olarak bulunmuştur.

INVESTIGATION OF REMOVAL OF PHOSPHATE FROM AQUEOUS MEDIA USING LOW COST ADSORBENT

In this study, removal of phosphate from waste aqueous solutions was examined in a batch wise system using low cost waste materials. The effects of adsorbent dosage and phosphate concentration on the phosphate removal have been studied bu using eggshells and pumice due to high removal of phosphate . The experimental data were applied to the Langmuir and Freundlich isotherm models for determination of adsorption of phosphate mechanism onto waste eggshells and pumice. The results indicate that both models fitted very well the experimental data. According to the Langmuir isotherm studies, the maximum sorption capacity (qmax) of the waste eggshell and pumice were evaluated as 19.23 mg/g (R2=0.943) and 32.26 mg/g (R2=0.894). The heterogeneity factor (1/n) of the Freundlich isotherm model was calculated as 0.245 for the waste eggshells, 0.383 for the pumice, respectively.

___

  • Akbal, F., 2005, “Adsorption of basic dyes from aqueous solution onto pumice powder” Journal of Colloid and Interace Sciences, Cilt 286, 455-458.
  • Balkaya, N., 2003, “Akdeniz kızıl toprağı kullanılarak atıksudan fosfat adsorpsiyonu”, Ekoloji, Cilt 3, 6- 11.
  • Ekici Suda H., 2007, “Kayısı Çekirdeğinden Elde Edilen Aktif Karbonla Sulardan Fosfat ve Bakır (II) giderimi” Yüksek Lisans Tezi, Fırat Üniversitesi Fen Bilimleri Enstit s , Elazığ, 1-4.
  • Elkady, M.F., Ibrahim, A.M., Abd El-Latif, M.M., 2011, “Assessment of the adsorption kinetics, equilibrium and thermodynamics for the potential removal of reactive red dye using eggshell biocomposite beads”, Desalination, Cilt 278, 412-423.
  • Jeon, D.J., Yeom, S.H., 2009, “Recycling wasted biomaterial, crab shells, asan adsorbent for the removal of high concentration of phosphate ”, Bioresource Technology, Cilt 100, 2646-2649.
  • Köse, T.E., Kıvanç, B., 2011, “Adsorption of phosphate from aqueous solutions using calcined waste eggshell”, Chemical Engineering Journal, Cilt178, 34-39.
  • Kuzawa, K., Jung, Y.J., Kiso, Y., Yamada, T., Nagai, M., Lee, T.G., 2006, “Phosphate removal and recovery with a synthetic hydrotalcite as an adsorbent”, Chemosphere, Cilt 62, 45-52.
  • Liu, C., Li, Y., Luan, Z., Chen, Z., Zhang, Z., Jia, Z., 2007, “Adsorption removal of phosphate from aqueous solution by active red mud”, Journal of Environmental Sciences, Cilt 19, 1166-1170.
  • Lu, S.G., Bai, S.Q., Zhu, L., Shan, H.D., 2009, “Removal mechanism of phosphate from aqueous solution by fly ash”, Journal of Hazardous Materials, Cilt 161, 95-101.
  • Minareci, O., Öztürk, M., Egemen, Ö., Minareci, E., 2008, “Manisa Belediyesi evsel atıksu arıtma tesisi çıkış sularının, Gediz nehrine olan etkilerinin, anyonik deterjan ve fosfat parametreleri açısından değerlendirilmesi”, SDÜ Fen Edebiyat Fak ltesi Fen Dergisi, Cilt 3, 16-25.
  • Su Kirliliği Kontrolü Yönetmeliği, 2004, Resmi Gazete, Sayı 25687, 31 Aralık Cuma.
  • Tsai,W.T., Hsien, K.J., Hsu, H.C., Lin, C.M., Lin, K.Y., Chiu,C.H., 2008, “Utilization of ground eggshell waste as an adsorbent for the removal of dyes from aqueous solution”, Bioresource Technology, Cilt 99, 1623-1629.
  • Vijayaraghavan, K., Jegan, J., Palanivelu, K., Velan, M., 2005, “Removal and recovery of copper from aqueous solution by eggshell in a packed column”, Minerals Engineering, Cilt 18, 545-547.
  • Xiong, J.B., Mahmood, Q., 2010, “Adsorptive removal of phosphate from aqueous media by peat”, Desalination, Cilt 259, 59-64.
  • Xiong, J., Qin, Y., Islam, E., Yue, M., Wang, W., 2011, “Phosphate removal from solution using powdered freshwater mussel shells ”, Desalination, Cilt 276, 317-321.
  • Xu, K., Deng, T., Liu, J., Peng, W., 2010, “Study on the phosphate removal from aqueous solution using modified fly ash”, Fuel, Cilt 89, 3668-3674.
  • Yalvac Can, M., Yıldız, E., 2006, “Phosphate removal from water by fly ash: Factorial experimental design ”, Journal of Hazardous Materials, Cilt 135, 165-170.
  • Yan, Y., Sun, X., Ma, F., Li, J., Shen, J., Han, W., Liu, X., Wang, L., 2014, “Removal of phosphate from etching wastewater by calcined alkaline residue : Batch and column studies”, J. of the Taiwan Institute of Chemical Engineers, Cilt (Baskıda)
  • Zheng, L., Li, X., Liu, J., 2004, “Adsorptive removal of phosphate from aqueous solutions using iron oxide tailings”, Water Research, Cilt 38, 1318-1326.
  • Zhao, Y., Wang, J., Luan, Z., Peng, X., Liang, Z., Shi, L., 2009, “Removal of phosphate from aqueous solution by red mud using a factorial design ”, Journal of Hazardous Materials, Cilt 165, 1193-1199.
  • Zhao, Y., Zhang, L., Ni, F., Xi, B., Xia, X., Peng, X., Luan, Z., 2011, “Evaluation of a novel composite inorganic coagulant prepared by red mud for phosphate removal ”, Desalination, Cilt 273, 414- 420.