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Title: VALORIZATION OF OLIVICULTURE RESIDUES TO PRODUCE BIOCHARS FOR THE REMOVAL OF NAPROXEN FROM WATER
VALORIZATION OF OLIVICULTURE RESIDUES TO PRODUCE BIOCHARS FOR THE REMOVAL OF NAPROXEN FROM WATER

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Ana Queiroz; Vinicius A. Reis; Jose L. Diaz de Tuesta; Paulo Brito; Antonio E. Ribeiro
10.5593/sgem2022V/3.2/s12.28
10.5593/sgem2022V/3.2
1314-2704
978-619-7603-54-5
English
22
3.2
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Hydrology and Water Resources
Adsorption is a treatment process based on accumulation of the adsorbate (pollutant) on the adsorbent surface that has been successful used for the optimization of wastewater treatment plant effluents cleaning. This work will present the main experimental results for the removal of naproxen from water by adsorption using activated carbon obtained from olive stones. Four types of activated carbon material were prepared from olive stones. The batch method was applied to experimentally measure the equilibrium adsorption isotherms. The most significant adsorption parameters were optimized, such as the solution pH, mass of the adsorbent, contact time and temperature. The physicochemical characterization of the pyrolyzed material shows a considerable superficial area of 608 m2/g when compared with other natural biomass-based materials. A removal efficiency of 100% was obtained for 24 h and a pH=4.5. The Langmuir model was used to better describe the adsorption behavior for adsorbent with better removal performance with the highest maximum adsorption capacity value of 35.2 mg naproxen/g adsorbent. The kinetics of the adsorption is well described by a pseudo-second order model. Obtained results in this work clearly show that olive stones, usually a residue from the Portuguese and Mediterranean oliviculture, can be exploited as a promising and lowcost biomass source on the production of adsorbent materials with considerable potential to remove micropollutants, such as the naproxen, from water.
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The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES (PIDDAC) to CIMO (UIDB/00690/2020, UIDP/00690/2020 and EXPL2021CIMO_05-REMPHARM) and SusTEC (LA/P/0007/2021).
conference
https://doi.org/10.5593/sgem2022V/3.2/s12.28
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 06-08 December, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
239-246
06-08 December, 2022
website
8792
Biochar, Oliviculture residues, Valorization, Naproxen