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All Journal Jurnal Elemen Kimia
Azra, Fitra Asyifa
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Chemical Engineering, Chemistry & Bioengineering Chemistry

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PENGARUH KONSENTRASI HNO3, LAJU ALIR, DAN UKURAN GRANULA ZEOLIT TERHADAP ADSORPSI ALIZARINE RED Azra, Fitra Asyifa
Jurnal Elemen Kimia Vol 9, No 2 (2025): Jurnal Elemen Kimia
Publisher : Universitas Negeri Yogyakarta

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Abstract

This research aims to: determine the characteristics of HNO3 activated zeolite granules, determine the effect of HNO3 activator concentration, determine the effect of variations in zeolite granule size, and determine the effect of variations in flow rate on the effectiveness of simulated waste adsorption of Alizarine Red S (ARS) dye, and determine the effectiveness of waste adsorption ARS dye simulation using activated natural zeolite adsorbent. This research is quantitative research. Natural zeolite was characterized using X Ray Diffraction, varying the granule size to 18-35 and 10-18 mesh, and activated using HNO3 with concentrations of 1, 3, and 5 M. Zeolite granules were used for adsorption of ARS dye using the column method. The effectiveness of adsorption for each type of granule was analyzed using UV-Vis. Non-activated and HNO3-activated zeolite granules with maximum adsorption results were characterized using a Scanning Electron Microscope. Based on the research results, the adsorption of ARS dye by HNO3 activated zeolite is better than non-activated zeolite, especially with high activator concentration, small granule size and small flow rate. The effectiveness of adsorption of simulated ARS dye waste with HNO3 activated natural zeolite is maximum when using 5M HNO3 activator at a flow rate of 0.3 L/hour with a granule size of 18-35 mesh.
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