Adsorpsi Ion Logam Tembaga Menggunakan Nano Zeolit Alam yang Diaktivasi

Yulianis Yulianis, Mahidin Mahidin, Syaifullah Muhammad

Abstract


This study was aimed to find out the ability of natural zeolite coming from Blang Pidie, South West Aceh District, Aceh Province, Indonesia, which was applied as an adsorbent to adsorp heavy metal copper (Cu²) ions in aqueous solution. This research was conducted to enhance the performance of natural zeolite by downsizing it to nano particles, then activated physically and chemically using 0.05 M HCl, then calcined at temperature 350°C for 2 hours. Test of Cu² metal ion adsorption to nano natural zeolite after activation was done by batch method to determine the effect of contact time, weight of the adsorbent, pH, and initial concentration. The results showed that the optimum adsorption at the initial concentration 38.998 mg/L, weight adsorbent 1 gram, pH 6 during 120 minutes of the contact time with the percentage metal ion Cu² adsorption up to 99.86% and adsorption capacity 7.789 mg/g. Isothermal adsorption ressembled with the isotherms Freundlich with the R² value of 0.9685, Freundlich constants (Kf) 111.99 mg/g and n value 0.986. The kinetic studies indicated that the adsorption of metal ions Cu² could be described by pseudo second order kinetic model with linear regression value 0.9997 and a constant value 0.121 min-1.

ABSTRAK

 Penelitian ini bertujuan untuk melihat kemampuan zeolit alam yang berasal dari Blang Pidie, Kabupaten Aceh Barat Daya, Provinsi Aceh, Indonesia yang diaplikasikan sebagai adsorben untuk menyerap ion logam berat tembaga (Cu²⁺) dalam larutan. Penelitian dilakukan dengan peningkatan unjuk kerja zeolit alam melalui pengecilan ukuran sampai nano partikel, selanjutnya diaktivasi fisika dan aktivasi kimia menggunakan HCl 0,05 M kemudian dikalsinasi pada temperatur 350 oC selama 2 jam. Uji adsorpsi ion logam Cu²⁺ terhadap nano zeolit alam setelah aktivasi dilakukan dengan metode batch untuk menentukan pengaruh waktu kontak, berat adsorben, pH, dan konsentrasi awal. Hasil penelitian menunjukkan adsorpsi optimum pada konsentrasi awal 40 mg/L, berat adsorben 1 gram, pH 6 selama waktu kontak 120 menit dengan persen ion logam Cu²⁺ yang terserap sebesar 99,86% dan kapasitas adsorpsi sebesar 7,789 mg/g.  Isotermal adsorpsi menyerupai isoterm Freundlich dengan nilai R² 0,9685, konstanta Freundlich (Kf) sebesar 111,99 mg/g dan nilai n sebesar 0,986. Studi kinetika menunjukkan bahwa adsorpsi ion logam Cu²⁺ mengikuti model kinetika orde dua semu dengan nilai regresi linier 0,9997 dan nilai konstanta 0,121 min-1.


Keywords


Natural zeolite; nano particle; adsorption; copper (Cu²⁺); isothermal

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References


Al-Zoubi, H., Rieger, A., Steinberger, P., Pelz, W., Haseneder, R., H?rtel, G., 2010. Optimization study for treatment of acid mine drainage using membrane technology. Sep. Sci. Technol. 45, 2004–2016. doi:10.1080/01496395.2010.480963

Barczyk, K., Mozgawa, W., Kr?l, M., 2014. Studies of anions sorption on natural zeolites. Spectrochim. Acta Part A Mol. Biomol. Spectrosc. 133, 876–882. doi:10.1016/j.saa.2014.06.065

Buzzi, D.C., Lucas Stéphano Viegas, Flávia P. C. Silvas, Espinosa, D.C.R., Rodrigues, M.A.S., Bernardes, A.M., Tenório, J.A.S., 2011. The use of microfiltration and electrodialysis for treatment of acid mine drainage, in: 11th International Mine Water Association Congress – Mine Water – Managing the Challenges. Aachen, Germany., pp. 287 – 291.

Coates, J., Coates, John, 2006. Interpretation of Infrared Spectra, A Practical Approach, in: Encyclopedia of Analytical Chemistry. John Wiley & Sons, Ltd, Chichester, UK. doi:10.1002/9780470027318.a5606

Erdem, E., Karapinar, N., Donat, R., 2004. The removal of heavy metal cations by natural zeolites. J. Colloid Interface Sci. 280, 309–314. doi:10.1016/j.jcis.2004.08.028

Fu, F., Wang, Q., 2011. Removal of heavy metal ions from wastewaters: A review. J. Environ. Manage. 92, 407–418. doi:10.1016/j.jenvman.2010.11.011

Gaikwad, W.R., Sapkal, V.S., Sapkal, R.S., 2010. Ion exchange system design for removal of heavy metals from acid mine drainage wastewater. Acta Montan. Slovaca Ročník 15, 298–304.

Kumar, R.N., McCullough, C.D., Lund, M.A., 2013. Upper and lower concentration thresholds for bulk organic substrates in bioremediation of acid mine drainage. Mine Water Environ. 32, 285–292. doi:10.1007/s10230-013-0242-8

Luptakova, A., Ubaldini, S., Macingova, E., Fornari, P., Giuliano, V., 2012. Application of physical chemical and biological chemical methods for heavy metals removal from acid mine drainage. Process Biochem. 47, 1633–1639. doi:10.1016/j.procbio.2012.02.025

Macingova, E., Luptakova, A., 2012. Recovery of metals from acid mine drainage. Chem. Eng. Trans. 28, 109–114.

Masukume, M., Onyango, M.S., Maree, J.P., 2014. Sea shell derived adsorbent and its potential for treating acid mine drainage. Int. J. Miner. Process. 133, 52–59. doi:10.1016/j.minpro.2014.09.005

Mohan, D., Chander, S., 2006. Removal and recovery of metal ions from acid mine drainage using lignite?A low cost sorbent. J. Hazard. Mater. 137, 1545–1553. doi:10.1016/j.jhazmat.2006.04.053

Motsi, T., Rowson, N.A., Simmons, M.J.H., 2009. Adsorption of heavy metals from acid mine drainage by natural zeolite. Int. J. Miner. Process. 92, 42–48. doi:10.1016/j.minpro.2009.02.005

Muhammad, S., Machdar, I., Saputra, E., 2014. Hydrothermal Synthesis of Nanocrystalline Zeolite using Clear Solution, in: The 5th Sriwijaya International Seminar on Energy and Environmental Science & Technology. pp. 80–86.

Noroozifar, M., Khorasani-Motlagh, M., Naderpour, H., 2014. Modified nanocrystalline natural zeolite for adsorption of arsenate from wastewater: Isotherm and kinetic studies. Microporous Mesoporous Mater. 197, 101–108. doi:10.1016/j.micromeso.2014.05.037

Richardson, J., JH Harker, JR Backhurst, 2002. Chemical engineering. Particle technology and separation processes, 5th ed, Butterworth-Heinemann,. Oxford.

Simate, G.S., Ndlovu, S., 2014. Acid mine drainage: Challenges and opportunities. J. Environ. Chem. Eng. 2, 1785–1803. doi:10.1016/j.jece.2014.07.021

Treybal, R.E., 1980. Mass-transfer operations, 3th ed. McGraw-Hill, Singapore.




DOI: http://dx.doi.org/10.24960/jli.v7i1.2694.61-69

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