Synthesis of Zeolite-Geopolymer Composite Granules and Their Adsorption on Methylene Blue
Abstract
Indonesia is one of the largest textile industrial producers in Southeast Asia. The high production of textile goods and the inadequate processing of textile wastewater have made Indonesia is the country which has the largest textile industry wastewater in Southeast Asia. Textile liquid waste, which is mostly dye waste, needs to be managed so that it does not have a negative impact when the liquid waste is released into the waters. One of the dye waste management techniques is by using adsorbent materials such as zeolite. In this study, zeolite was composited with geopolymer and formed into granules in order to have high adsorption capacity and resistance. The composite was synthesized by mixing zeolite, metakaolin and sodium silicate (Na2SiO3), then dried in an oven at 100 °C for 2 hours. The samples used were then tested for adsorption on methylene blue. Sample precursors were also characterized using XRD and SEM. The results of the adsorption test showed that the zeolite-geopolymer granule composite has an adsorption capacity of 52.68 mg/g for small granules and 20.85 mg/g for large granules so that it can be applied in aquatic environments.and could be applied to aquatic environments.
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Department of Soil Science and Land Resources Departemen Ilmu Tanah dan Sumberdaya Lahan, Faculty of Agriculture Fakultas Pertanian, IPB University
