Studi Perbandingan Adsorpsi-Desorpsi Anion Nitrat dan Sulfat pada Bentonit Termodifikasi

Syarifah Rabiatul Adawiah*    -  Universitas Islam Negeri Alauddin Makassar, Indonesia
Sutarno Sutarno  -  Universitas Gadjah Mada, Indonesia
Arfiani Nur  -  Universitas Islam Negeri Alauddin Makassar, Indonesia
Rahmiani Gani  -  Universitas Islam Negeri Alauddin Makassar, Indonesia
Titik Andriani  -  Universitas Islam Negeri Alauddin Makassar, Indonesia

(*) Corresponding Author

Telah dilakukan studi perbandingan adsorpsi-desorpsi nitrat dan sulfat pada bentonit termodifikasi. Adsorpsi dilakukan dengan mengocok adsorben dalam larutan adsorbat pada kondisi pH, waktu kontak dan konsentrasi optimum. Selanjutnya dilakukan studi desorpsi pada air dan asam sitrat yang menggunakan adsorben yang telah mengadsorpsi nitrat dan sulfat. Studi menunjukkan bahwa kapasitas adsorpsi dipengaruhi oleh muatan dan ukuran anion. Semakin kecil muatan dan ukuran anion, semakin besar kapasitas adsorpsinya. Hasil penelitian menunjukkan kapasitas adsorpsi: nitrat (0,032 mmol g-1)> sulfat (0,020 mmol g-1). Pada studi desorpsi menunjukkan bahwa persentase pelepasan juga dipengaruhi oleh muatan dan ukuran anion, semakin besar muatan dan ukuran anion maka semakin mudah proses desorpsi. Persentase desorpsi dalam air pada waktu kesetimbangan adalah: sulfat (71,33%)> nitrat (50,71%) dan dalam asam sitrat adalah: sulfat (95,76%)> nitrat (59,05%). Hasil penelitian menunjukkan bahwa kelarutan anion dalam asam sitrat lebih besar dari pada air, hal ini merupakan persyaratan untuk aplikasi pupuk lepas lambat (SRF).

Keywords : Adsorsi; Desorpsi; Nitrat; Sulfat; SRF

  1. Adawiah, S. R., Sutarno, S. dan Suyanta, S. 2020. Studi Adsorpsi-Desorpsi Anion Fosfat pada Bentonit Termodifikasi CTAB. Indo. J. Chem. Res., 8(2), pp. 125–136. doi: 10.30598//ijcr.2020.8-sra.
  2. Almasri, M. N. 2007. Nitrate contamination of Groundwater: A Conceptual Management Framework. Environmental Impact Assessment Review, 27(3), pp. 220–242. doi: 10.1016/j.eiar.2006.11.002.
  3. Bhattacharya, I. dkk. 2007. Development of A Novel Slow-Releasing Iron-Manganese Fertilizer Compound. Industrial and Engineering Chemistry Research, 46(9), pp. 2870–2876. doi: 10.1021/ie060787n.
  4. Cao, L. dkk. 2019. Preparation and Characteristics of Bentonite–Zeolite Adsorbent and Its Application in Swine Wastewater. Bioresource Technology. Elsevier, 284(2), pp. 448–455. doi: 10.1016/j.biortech.2019.03.043.
  5. Cao, W. dkk. 2011. Removal of Sulphate From Aqueous Solution Using Modified Rice Straw: Preparation, Characterization and Adsorption Performance., Carbohydrate Polymers. Elsevier Ltd., 85(3), pp. 571–577. doi: 10.1016/j.carbpol.2011.03.016.
  6. Chen, L. dkk. 2013. Enhanced Oil-Mineral Aggregation with Modified Bentonite. Water Science and Technology, 67(7), pp. 1581–1589. doi: 10.2166/wst.2013.013.
  7. Coma, M. dkk. 2013. Biocatalysed Sulphate Removal in A Bes Cathode. Bioresource Technology, 130, pp. 218–223. doi: 10.1016/j.biortech.2012.12.050.
  8. Combariza, J. E., Kestner, N. R. dan Jortner, J. 1994. Energy-Structure Relationships for Microscopic Solvation of Anions in Water Clusters. The Journal of Chemical Physics, 100(4), pp. 2851–2864. doi: 10.1063/1.467231.
  9. Hamoudi, S. dan Belkacemi, K. 2013. Adsorption of Nitrate and Phosphate Ions from Aqueous Solutions Using Organically-Functionalized Silica Materials: Kinetic Modeling. Fuel. Elsevier Ltd, 110, pp. 107–113. doi: 10.1016/j.fuel.2012.09.066.
  10. Kalaruban, M. dkk. 2016. Enhanced Removal of Nitrate From Water Using Amine-Grafted Agricultural Wastes. Science of the Total Environment. Elsevier B.V., 565, pp. 503–510. doi: 10.1016/j.scitotenv.2016.04.194.
  11. Khan, M. A. dkk. 2008. Nutrient-Impregnated Charcoal: An Environmentally Friendly Slow-Release Fertilizer. Environmentalist, 28(3), pp. 231–235. doi: 10.1007/s10669-007-9133-5.
  12. Li, Z. dan Zhang, Y. 2010. Use of Surfactant-Modified Zeolite to Carry and Slowly Release Sulfate. Desalination and Water Treatment, 21(1–3), pp. 73–78. doi: 10.5004/dwt.2010.1226.
  13. Liamleam, W. dan Annachhatre, A. P. 2007. Electron Donors for Biological Sulfate Reduction. Biotechnology Advances, 25(5), pp. 452–463. doi: 10.1016/j.biotechadv.2007.05.002.
  14. Ma, J. dkk. 2012. A Novel Bentonite-Based Adsorbent for Anionic Pollutant Removal from Water. Chemical Engineering Journal. Elsevier B.V., 200–202, pp. 97–103. doi: 10.1016/j.cej.2012.06.014.
  15. Mo, W. dkk. 2018. Preparation and Characterization of A Granular Bentonite Composite Adsorbent and Its Application for Pb2+ Adsorption. Applied Clay Science. Elsevier, 159(July), pp. 68–73. doi: 10.1016/j.clay.2017.12.001.
  16. Palygorskite, S. dkk. 2011. Adsorption of Sulfate Ions from Aqueous Solution by’, pp. 3890–3896.
  17. Park, Y., Ayoko, G. A. dan Frost, R. L. 2011. Application of Organoclays for The Adsorption of Recalcitrant Organic Molecules from Aqueous Media. Journal of Colloid and Interface Science. Elsevier Inc., 354(1), pp. 292–305. doi: 10.1016/j.jcis.2010.09.068.
  18. Qiao, H. dkk. 2019. Adsorption of Nitrate and Phosphate from Aqueous Solution Using Amine Cross-Linked Tea Wastes. Applied Surface Science. Elsevier B.V, 483, pp. 114–122. doi: 10.1016/j.apsusc.2019.03.147.
  19. Seliem, M. K. dkk. 2013. Removal of Nitrate by Synthetic Organosilicas and Organoclay: Kinetic and Isotherm Studies. Separation and Purification Technology. Elsevier B.V., 110, pp. 181–187. doi: 10.1016/j.seppur.2013.03.023.
  20. Suraiya, F. N. dan Sutarno. 2020. Bentonit Termodifikasi Cetiltrimetilammonium sebagai Adsorben Ion Mn2+. (3), pp. 10–13
  21. Utami, M. 2014. Adsorpsi Ion Pb2+ dan SO42- pada Bentonit Termodifikasi Cetiltrimetilammonium. pp. 1–2.
  22. Washabaugh, M. W. dan Collins, K. D. 1986. The systematic characterization by aqueous column chromatography of solutes which affect protein stability. Journal of Biological Chemistry, 261(27), pp. 12477–12485. doi: 10.1016/s0021-9258(18)67112-1.
  23. Xi, Y., Mallavarapu, M. dan Naidu, R. 2010. Preparation, characterization of surfactants modified clay minerals and nitrate adsorption. Applied Clay Science, 48(1–2), pp. 92–96. doi: 10.1016/j.clay.2009.11.047.
  24. Yin, Q. dkk. 2018. Evaluation of nitrate and phosphate adsorption on Al-modified biochar: Influence of Al content. Science of the Total Environment, 631–632, pp. 895–903. doi: 10.1016/j.scitotenv.2018.03.091.

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WJC: Walisongo Journal of Chemistry
Published by the Department of Chemistry
Faculty of Science and Technology
Universitas Islam Negeri Walisongo Semarang
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ISSN: 2549-385X (Print)
ISSN: 2621-5985 (Online)

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

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