Characterization and Mechanisms of a New Carbonaceous Adsorbent Based on Black Liquor Loaded with Iron Oxide for Removal
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Characterization and Mechanisms of a New Carbonaceous Adsorbent Based on Black Liquor Loaded with Iron Oxide for Removal of Tripolyphosphate Ions Ajeng Arum Sari & Rifahny Intan Satria Akhmad & Adelia Anju Asmara & Osi Arutanti & Tony Hadibarata & Andreas & Hasbi Yasin & Asep Saefumillah & Adhi Yuniarto
Received: 31 May 2020 / Accepted: 10 August 2020 # Springer Nature Switzerland AG 2020
Abstract The impregnation process has successfully prepared a novel composite of iron oxide/carbon from black liquor (CA-BL/Fe) as an adsorbent for the removal of tripolyphosphate ions. Black liquor is a secondary product of the bioethanol pre-treatment process. X-ray diffraction results showed that the main iron oxide species present in the CA-BL/Fe was goethite (α-FeOOH). Interestingly, the specific surface area of CA-BL/Fe was 504 m2/g higher than that of commercial activated carbon of 356 m2/g. The adsorption performance showed that tripolyphosphate ion removal efficiency increased by increasing the adsorbent dosage, pH, and contact time. At the same time, it decreased with an increase
in the initial concentration of tripolyphosphate. By controlling the environment pH value, the optimum removal efficiency of tripolyphosphate ions with CA-BL/Fe was 96.87%, with the adsorption capacity of 1.5922 mg/ g for 1 h measurement. In this study, the dominant mechanisms of tripolyphosphate adsorption are electrostatic attraction and ion exchange. The result of this study is expected to be the basis for further promising adsorbent material for tripolyphosphate ion.
Keywords Adsorption . Carbonaceous adsorbents . Black liquor . Iron oxide . Tripolyphosphate ion
Electronic supplementary material The online version of this article (https://doi.org/10.1007/s11270-020-04816-3) contains supplementary material, which is available to authorized users. A. A. Sari (*) Research Unit for Clean Technology, Indonesian Institute of Sciences, Jalan Sangkuriang, Komplek LIPI, Gedung 50, Bandung 40135, Indonesia e-mail: [email protected] e-mail: [email protected] R. I. S. Akhmad : A. Saefumillah Department of Chemistry, Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Indonesia, Depok 16424, Indonesia A. A. Asmara Department of Environmental Engineering, Faculty of Civil Engineering and Planning, Universitas Islam Indonesia, Jalan Kaliurang Km. 14.5, Yogyakarta, Indonesia
O. Arutanti : Andreas Research Center for Chemistry, Indonesian Institute of Sciences, Kawasan Puspiptek Serpong, Tangerang Selatan, Banten 15314, Indonesia T. Hadibarata Department of Environmental Engineering, Faculty of Engineering and Science, Curtin University, Miri, Malaysia H. Yasin Department of Statistic, Faculty of Science and Mathematics, Universitas Diponegoro, Tembalang, Semarang, Indonesia A. Yuniarto Department of Environmental Engineering, Faculty of Civil, Planning, and Geo-Engineering, Institut Teknologi Sepuluh Nopember, Surabaya 60111, Indonesia
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Abbreviation CA-BL Carbonaceous adsorbents-black liquor PAC Polyaluminum chlo
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