000165122 001__ 165122
000165122 005__ 20251212165958.0
000165122 0247_ $$2doi$$a10.1016/j.scitotenv.2020.141498
000165122 0248_ $$2sideral$$a119837
000165122 037__ $$aART-2021-119837
000165122 041__ $$aeng
000165122 100__ $$aPeñafiel, M.E.
000165122 245__ $$aComparative adsorption of ciprofloxacin on sugarcane bagasse from Ecuador and on commercial powdered activated carbon
000165122 260__ $$c2021
000165122 5203_ $$aThis work examined the adsorption capacity of sugarcane bagasse (SB) for the removal of ciprofloxacin (CPX) from water using batch experiments and a fixed bed column and compared its adsorption performance with a powdered activated commercial carbon (PAC). Both adsorbents achieved a similar percentage removal of about 78% with doses of 3 g L-1 of SB and 0.3 g L-1 of PAC (20 mg L-1 initial CPX concentration at 30 °C). The maximum removal was obtained at a pH between 6 and 8. SB adsorption isotherms were fitted to the Langmuir, BET and Freundlich models showing a maximum adsorption capacity of 13.6 mg g-1. The kinetic data for both SB and PAC fitted the pseudo second-order model (R2 = 0.99). The adsorption process was faster on the SB (65% of elimination in the first 5 min) than on the PAC. The study of the adsorbent properties shows that SB is a macroporous solid with a specific surface area 250 times smaller than PAC. The thermodynamic results show that SB adsorption was physical and exothermic. The main suggested interactions between CPX and SB are electrostatic attraction, hydrogen bonding and dipole-dipole interactions. The experiments carried out in a fixed bed show that the adsorption capacity at breakthrough increases with the bed height. The adsorption capacity at saturation time was 9.47 mg g-1 at a flow rate of 3 mL min-1, a bed height of 14 cm, and a diameter of 1.5 cm. The experimental data were fitted to the Bohart-Adams model (R2 = 0.98). These results highlight the capacity of sugarcane bagasse to adsorb ciprofloxacin from water, illustrating its potential as a low-cost adsorbent.
000165122 540__ $$9info:eu-repo/semantics/closedAccess$$aAll rights reserved$$uhttp://www.europeana.eu/rights/rr-f/
000165122 590__ $$a10.754$$b2021
000165122 591__ $$aENVIRONMENTAL SCIENCES$$b26 / 279 = 0.093$$c2021$$dQ1$$eT1
000165122 592__ $$a1.806$$b2021
000165122 593__ $$aEnvironmental Chemistry$$c2021$$dQ1
000165122 593__ $$aWaste Management and Disposal$$c2021$$dQ1
000165122 593__ $$aEnvironmental Engineering$$c2021$$dQ1
000165122 594__ $$a14.1$$b2021
000165122 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000165122 700__ $$0(orcid)0000-0002-6585-6788$$aMatesanz, J.M.$$uUniversidad de Zaragoza
000165122 700__ $$aVanegas, E.
000165122 700__ $$aBermejo, D.
000165122 700__ $$0(orcid)0000-0002-7456-4912$$aMosteo, R.$$uUniversidad de Zaragoza
000165122 700__ $$0(orcid)0000-0003-3014-0322$$aOrmad, M.P.$$uUniversidad de Zaragoza
000165122 7102_ $$14013$$2205$$aUniversidad de Zaragoza$$bDpto. Didácticas Específicas$$cÁrea Didáctica Ciencias Exper.
000165122 7102_ $$15005$$2790$$aUniversidad de Zaragoza$$bDpto. Ing.Quím.Tecnol.Med.Amb.$$cÁrea Tecnologi. Medio Ambiente
000165122 773__ $$g750 (2021), 141498 [12 pp]$$pSci. total environ.$$tSCIENCE OF THE TOTAL ENVIRONMENT$$x0048-9697
000165122 8564_ $$s2162764$$uhttps://zaguan.unizar.es/record/165122/files/texto_completo.pdf$$yVersión publicada
000165122 8564_ $$s2344019$$uhttps://zaguan.unizar.es/record/165122/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000165122 909CO $$ooai:zaguan.unizar.es:165122$$particulos$$pdriver
000165122 951__ $$a2025-12-12-14:43:07
000165122 980__ $$aARTICLE