Abstract
Tannin materials have been reported as efficient adsorbents toward several compounds. Here, an iron-loaded maritime pine tannin resin was produced and applied for arsenic removal from water. The production of the adsorbent started with tannin extraction in alkaline aqueous solution (optimal conditions: 60 min, 90 °C, and 7.5% w/w NaOH), yielding 143 ± 7 mg of formaldehyde-condensable phenols per g of bark used. After gelification (maximum efficiency of 80%), the resin was oxidized in nitric acid solution at 50 °C and loaded with iron (1250 mg-Fe L−1 at pH 2). This chemical modification was done to enhance the affinity to As. The resultant product had an iron content of approximately 20 mg-Fe g−1. Samples of this resin with different particle sizes were evaluated for As(III) and As(V) uptake. Within the conditions studied, the removal efficiencies were quite modest but potentially improvable. Both Langmuir and Freundlich models described well the adsorption data of As(V). The maximum adsorption capacity, predicted by the Langmuir model, was 0.3 ± 0.1 mg g−1.
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References
Pepino, L., et al.: Comparison of quantification methods for the condensed tannin content of extracts of Pinus pinaster bark. In: Chiellini, E., et al. (eds.) Biorelated Polymers: Sustainable Polymer Science and Technology. Springer Boston, US (2001)
Pizzi, A.: Tannins: major sources, properties and applications. In: Belgacem, M.N., Gandini, A. (eds.) Monomers, Polymers and Composites from Renewable Resources, p. 179–200. Elsevier (2008)
Bacelo, H.A.M., Santos, S.C.R., Botelho, C.M.S.: Tannin-based biosorbents for environmental applications-a review. Chem. Eng. J. 303, 575–587 (2016)
Sanchéz-Martín, J., et al.: Adsorbent biopolymers from tannin extracts for water treatment. Chem. Eng. J. 168(3), 1241–1247 (2011)
Singleton, V.L., Rossi, J.A.: Colorimetry of total phenolics with phosphomolybdic-phosphotungstic acid reagents. Am. J. Enol. Vitic. 16, 144–158 (1965)
Hoong, Y.B., et al.: Fortification of sulfited tannin from the bark of Acacia mangium with phenol-formaldehyde for use as plywood adhesive. Ind. Crops Prod. 30(3), 416–421 (2009)
Ogata, T., et al.: Preparation of adsorbent for phosphate recovery from aqueous solutions based on condensed tannin gel. J. Hazard. Mater. 192(2), 698–703 (2011)
Vázquez, G., et al.: Characteristics of Pinus pinaster bark extracts obtained under various extraction conditions. Holz Als Roh-Und Werkstoff 59(6), 451–456 (2001)
Acknowledgements
Financed by projects: NORTE-01-0145-FEDER-000006—funded by NORTE2020 through PT2020 and ERDF and Associate Laboratory LSRE-LCM - UID/EQU/50020/2019—funded by national funds through FCT/MCTES (PIDDAC). H. Bacelo (PD/BD/135062/2017) and S. Santos (SFRH/BPD/117387/2016) acknowledge Ph.D. and postdoctoral fellowships funded by FCT.
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Bacelo, H.A.M., Botelho, C.M.d., dos Santos, S.C.R. (2021). Preparation of Iron-Loaded Maritime Pine Tannin Resins for Arsenic Uptake from Water. In: Ksibi, M., et al. Recent Advances in Environmental Science from the Euro-Mediterranean and Surrounding Regions (2nd Edition). EMCEI 2019. Environmental Science and Engineering(). Springer, Cham. https://doi.org/10.1007/978-3-030-51210-1_125
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DOI: https://doi.org/10.1007/978-3-030-51210-1_125
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