Abstract
Artan çevre
kirliliği nedeniyle doğal adsorbantlar önemli ve tercih edilen materyaller sınıfında
yer almaktadır. Çinko, öncelikli kirleticiler listesinde yer alan toksik ağır
metaldir. Bu çalışmada doğal bir kil minerali olan Kütahya yöresi kalsiyum
bentoniti (Ca-bentonit) kullanılarak çinkonun sulu çözeltilerden
uzaklaştırılması çalışılmıştır. Ca-Bentonit, X-ray difraksiyonu (XRD), X-ray
floresans (XRF), partikül boyutu dağılımı analizi, spesifik
yüzey alanı (BET) ve katyon değiştirme kapasitesi(KDK) yöntemleri kullanılarak
karakterize edilmiştir. Adsorpsiyon prosesi üzerinde etkili olan; pH, başlangıç
metal iyon konsantrasyonu, adsorbant miktarı, reaksiyon zamanı gibi faktörler
kesikli çalışma prosesinde incelenmiştir. Sonuçlar düşük pH değerlerinde
bentonitin adsorpsiyon davranışını yöneten mekanizmanın kristal yapının
çözünmesi ve metal iyonlarının H+ ile rekabeti yönünde olduğunu
göstermektedir. Adsorpsiyon üzerinde en etkin parametrenin pH olduğu
belirlenmiştir.
Deneysel veriler Langmuir ve Freundlich
izotermleri uygulanarak adsorpsiyon davranışı tanımlanmıştır. Deneysel
sonuçların Langmuir ve Freundlih izotermlerinin her ikisine birden uyduğu ancak
çinkonun adsorplanma davranışının Langmuir izotermi ile daha iyi uyumlu olduğu
yönündedir. Bentonitin sulu çözeltilerden Zn(II) uzaklaştırılmasında etkili bir adsorbant
olduğu sonucuna varılmıştır.
References
- [1] GÜLER, Ç., ÇOBANOĞLU, Z., Water Pollution, Environmental Health Basic Resources Series, No:12, T.C Ministry of Health Public – Healt Project Coordinator, Ankara, 1994.
- [2] BANAT, F., Al-ASHEH, S., Al-ROUSAN, D., “Beneficial Reuse Of Chicken Feathers In Removal of Heavy Metals From Wastewater”, Journal of Hazardous Materials, 147, 792-799,2003.
- [3] YILMAZER, P., Removal of Heavy Metals from Aqueous Media by Using Microorganisms, Post-Graduate Thesis, Science Institue of Gazi University, Department of Chemical Engineering, Ankara, 2006.
- [4] UĞUR, A., Removal of Some Heavy Metals’ Pollution by Using Grain Including Natural Materials, Doctoral Thesis, Institute of Yıldız Technical University, Istanbul, 2008.
- [5] GÜNDOĞDU, S., Bazı Ağır Metallerin (Çinko, Mangan), Doğal ve Aktive Edilmiş Farklı Kil Mineralleri (Kütahya bentonit, kaolin) Üzerindeki Adsorpsiyon Denge Çalışmaları, Post-Graduate Thesis, Science Institute of Yüzüncü Yıl University, Van, 2006.
- [6] İPEKOĞLU, B., KURŞUN, İ., BİLGE, Y., BARUT, A., “A General Perspective to The Potential Bentonite in Turkey”, 2. Industrial Raw Materials Symposium, 16-17 October 1997, Izmir, Turkey, 1997.
- [7] MALAYOĞLU; U., AKAR, A., “Examination of Criterias for Classification and Determining the Usage Areas of Clays”, Industrial Raw Materials Symposium, 125 -142, 21 - 22 April, Izmir, Turkey, 1995.
- [8] KUL, A.R., Examining the Adsorption of Some Organic Materials In Solution On Commercial Active Carbon, Doctoral Thesis, Science Institute of Yüzüncü Yıl University, Van1999.
- [9] KUNCORO P.E., ISNADINA D.R.M., ISNADINA H., FAUZIAH O.R., KUSUMA H.S.,“Characterization, kinetic, and isotherm data for adsorption of Pb2þ from aqueous solution by adsorbent from mixture of bagasse-bentonite. Data in Brief, 16, 622–629, 2018
- [10] PANDEY S., “A comprehensive review on recent developments in bentonite-based materials used as adsorbents for wastewater treatment”, Journal of Molecular Liquids, 241, 1091–1113, 2017.
- [11] ABU-EISHAHA S I., “Removal of Zn, Cd, and Pb Ions from water by Sarooj clay”, Applied Clay Science, 42 201–205, 2008.
- [12] LALHMUNSIAMA, R. R. P., BAJAJ, H. C., LEE, S., “Activated bentonite as a low-cost adsorbent for the removal of Cu(II) and Pb(II) from aqueous solutions: Batch and column studies”, Journal of Industrial and Engineering Chemistry, 34, 213–223, 2016.
- [13] MENDIOROZ, S., PAJARES, J.A., BENITO,I., PESQUEA, C., GONZALEZ, F., BLANCO, C.,“Texture Evolution of Montmorillonite under Progressive Acid Treatment: Change from H3 to H2 Type of Hysteresis”, Langmuir, 3, 676-681, 1987
- [14] MELLAH, A., CHEGROUCHE, S., “The removal of Zinc from aqueous solutions by natural bentonite”, Water Resour, 31, 3, 621–629, 1997
- [15] PARK, M. CHOI, C.L., SEO, Y.J., YEO, S.K., CHOI, J., KOMAMENI, S., LEE, J.H., “ Reactions of Cu2+ and Pb2+ with Mg/Al layered double hydroxide”, Appl. Clay Sci., 37, 143–148, 2007.
- [16] CHU, K.H. HASHIM, M. A., “Adsorption and desorption characteristics of zinc on ash particles derived from oil palm waste”, Journal of Chemical Technology and Biotechnology, 77, 685-693,2002
- [17] RAMOS, R. L., JACOME, L.A. B., BARRON, J.M., RUBIO, L. F., CORONADO R.M.G., “Adsorption of zinc(II) from an aqueous solution onto activated carbon”, J. Hazard. Mater. B., 90, 27-38, 2002.
- [18] DA˛BROWSKI, A., “Adsorption from theory to practice”, Advances in Colloid and Interface Science., 93, 135-224, 2001
Abstract
Natural adsorbents has become more important and
such a considering position that is because of increasing pollution of
environment. Zinc, which is listed as prior contaminant by many agencies, is a
toxic heavy metal. In this study, zinc adsorption performance of raw
Ca-Bentonite obtained from Kütahya region of Turkey was investigated using
batch adsorption method. X-ray diffraction (XRD), X-ray fluorescence (XRF),
particle size distribution analysis, specific surface area (BET) and Cation
Exchange Capacity (CEC) characterized Ca-bentonite. In batch experiments, all factors that affected adsorption
process such as pH, initial metal ion concentration, adsorbent doses, and
contact time were optimized. The most effective parameter on adsorption was
determined as pH. The adsorption behavior of bentonites at low pH values is
determined as dissolution of crystal structure and competition of the metal
ions with the H+. In conclusion, raw Ca-bentonite is adsorbed
successfully under the optimized reaction conditions, and adsorption behavior
of Zn(II) is well-fitted by the Langmuir isotherm.
References
- [1] GÜLER, Ç., ÇOBANOĞLU, Z., Water Pollution, Environmental Health Basic Resources Series, No:12, T.C Ministry of Health Public – Healt Project Coordinator, Ankara, 1994.
- [2] BANAT, F., Al-ASHEH, S., Al-ROUSAN, D., “Beneficial Reuse Of Chicken Feathers In Removal of Heavy Metals From Wastewater”, Journal of Hazardous Materials, 147, 792-799,2003.
- [3] YILMAZER, P., Removal of Heavy Metals from Aqueous Media by Using Microorganisms, Post-Graduate Thesis, Science Institue of Gazi University, Department of Chemical Engineering, Ankara, 2006.
- [4] UĞUR, A., Removal of Some Heavy Metals’ Pollution by Using Grain Including Natural Materials, Doctoral Thesis, Institute of Yıldız Technical University, Istanbul, 2008.
- [5] GÜNDOĞDU, S., Bazı Ağır Metallerin (Çinko, Mangan), Doğal ve Aktive Edilmiş Farklı Kil Mineralleri (Kütahya bentonit, kaolin) Üzerindeki Adsorpsiyon Denge Çalışmaları, Post-Graduate Thesis, Science Institute of Yüzüncü Yıl University, Van, 2006.
- [6] İPEKOĞLU, B., KURŞUN, İ., BİLGE, Y., BARUT, A., “A General Perspective to The Potential Bentonite in Turkey”, 2. Industrial Raw Materials Symposium, 16-17 October 1997, Izmir, Turkey, 1997.
- [7] MALAYOĞLU; U., AKAR, A., “Examination of Criterias for Classification and Determining the Usage Areas of Clays”, Industrial Raw Materials Symposium, 125 -142, 21 - 22 April, Izmir, Turkey, 1995.
- [8] KUL, A.R., Examining the Adsorption of Some Organic Materials In Solution On Commercial Active Carbon, Doctoral Thesis, Science Institute of Yüzüncü Yıl University, Van1999.
- [9] KUNCORO P.E., ISNADINA D.R.M., ISNADINA H., FAUZIAH O.R., KUSUMA H.S.,“Characterization, kinetic, and isotherm data for adsorption of Pb2þ from aqueous solution by adsorbent from mixture of bagasse-bentonite. Data in Brief, 16, 622–629, 2018
- [10] PANDEY S., “A comprehensive review on recent developments in bentonite-based materials used as adsorbents for wastewater treatment”, Journal of Molecular Liquids, 241, 1091–1113, 2017.
- [11] ABU-EISHAHA S I., “Removal of Zn, Cd, and Pb Ions from water by Sarooj clay”, Applied Clay Science, 42 201–205, 2008.
- [12] LALHMUNSIAMA, R. R. P., BAJAJ, H. C., LEE, S., “Activated bentonite as a low-cost adsorbent for the removal of Cu(II) and Pb(II) from aqueous solutions: Batch and column studies”, Journal of Industrial and Engineering Chemistry, 34, 213–223, 2016.
- [13] MENDIOROZ, S., PAJARES, J.A., BENITO,I., PESQUEA, C., GONZALEZ, F., BLANCO, C.,“Texture Evolution of Montmorillonite under Progressive Acid Treatment: Change from H3 to H2 Type of Hysteresis”, Langmuir, 3, 676-681, 1987
- [14] MELLAH, A., CHEGROUCHE, S., “The removal of Zinc from aqueous solutions by natural bentonite”, Water Resour, 31, 3, 621–629, 1997
- [15] PARK, M. CHOI, C.L., SEO, Y.J., YEO, S.K., CHOI, J., KOMAMENI, S., LEE, J.H., “ Reactions of Cu2+ and Pb2+ with Mg/Al layered double hydroxide”, Appl. Clay Sci., 37, 143–148, 2007.
- [16] CHU, K.H. HASHIM, M. A., “Adsorption and desorption characteristics of zinc on ash particles derived from oil palm waste”, Journal of Chemical Technology and Biotechnology, 77, 685-693,2002
- [17] RAMOS, R. L., JACOME, L.A. B., BARRON, J.M., RUBIO, L. F., CORONADO R.M.G., “Adsorption of zinc(II) from an aqueous solution onto activated carbon”, J. Hazard. Mater. B., 90, 27-38, 2002.
- [18] DA˛BROWSKI, A., “Adsorption from theory to practice”, Advances in Colloid and Interface Science., 93, 135-224, 2001
Details
| Primary Language | Turkish |
|---|---|
| Subjects | Material Production Technologies |
| Journal Section | Materials and Metallurgical Engineering |
| Authors | |
| Publication Date | July 20, 2018 |
| Submission Date | February 8, 2018 |
| Acceptance Date | March 26, 2018 |
| Published in Issue | Year 2018 Volume: 7 Issue: 2 |
