Removal of Cr(VI) from Wastewater of the Tannery Industry by Functionalized Mesoporous Material
- 14 Downloads
A previously synthesized PABA-MCM-41 mesoporous material was used to remove Cr(VI) in leather samples. The optimization step was performed using univariate method for the following variables: pH, concentration of Cr(VI) standard, time, dose, and reuse of PABA-MCM-41 adsorbent material. The optimum pH of the adsorption process was equal to 3, the adsorbed amount (qe) increased with the increase in initial Cr(VI) concentration, as well as with increase of PABA-MCM-41 dose. The adsorption efficiency increased with the time and the equilibrium was reached in approximately 80 min, with maximum adsorption efficiency of 98.3%. The adsorption kinetic and equilibrium data were better fitted with the non-linear pseudo-first order and Freundlich models, respectively. Leather samples presented Cr(VI) concentration values above of the maximum values regulated by European Union. The PABA-MCM-41 presented Cr(VI) removal percentage values for the real samples between 97.5–99.2%. The PABA-MCM-41 had not matrix effect in the adsorption process, and thus allowing its application in wastewater contaminated with heavy metals.
KeywordsPotential toxic elements Mesoporous materials Decontamination Adsorption Cr(VI)
Unable to display preview. Download preview PDF.
The authors thank FAPESP (Research Support Foundation of the State of São Paulo) (Grants 2014/05679-4, 2017/06775-5, and 2018/18894-1), CAPES (Coordination for the Improvement of Higher Education Personnel) (Grant 309342/2010-4), and CDMF (Center for the Development of Functional Materials) (Grant 2013/07296-2) for the financial support.
Compliance with Ethical Standards
Conflict of Interest
The authors declare that they have no conflict of interest.
- 5.Kumar R, Alamelu D, Acharya R, Rai AK (2014) Determination of concentrations of chromium and other elements in soil and plant samples from leather tanning area by instrumental neutron activation analysis. J Radioanal Nucl Chem 300:213–218. https://doi.org/10.1007/s10967-014-3006-4 CrossRefGoogle Scholar
- 6.Neiva AM, Sperança MA, Costa VC, Jacinto MAC, Pereira-Filho ER (2018) Determination of toxic metals in leather by wavelength dispersive X-ray fluorescence (WDXRF) and inductively coupled plasma optical emission spectrometry (ICP OES) with emphasis on chromium. Environ Monit Assess 190:618. https://doi.org/10.1007/s10661-018-6990-y CrossRefPubMedGoogle Scholar
- 7.Venezia M, Alonzo G, Palmisano L (2008) EDTA excess Zn(II) back-titration in the presence of 4-(2-pyridylazo)-resorcinol indicator and naphthol green β as inert dye for determining Cr(III) as Cr(III)/EDTA complex: application of the method to a leather industry wastewater. J Hazard Mater 151:356–363. https://doi.org/10.1016/j.jhazmat.2007.05.081 CrossRefPubMedGoogle Scholar
- 12.Gaikwad MS, Balomajumder C (2017) Simultaneous rejection of fluoride and Cr(VI) from synthetic fluoride-Cr(VI) binary water system by polyamide flat sheet reverse osmosis membrane and prediction of membrane performance by CFSK and CFSD models. J Mol Liq 234:194–200. https://doi.org/10.1016/j.molliq.2017.03.073 CrossRefGoogle Scholar
- 26.Santos LFS, de Jesus RA, Costa JAS et al (2019) Evaluation of MCM-41 and MCM-48 mesoporous materials as sorbents in matrix solid phase dispersion method for the determination of pesticides in soursop fruit (Annona muricata). Inorg Chem Commun 101:45–51. https://doi.org/10.1016/j.inoche.2019.01.013 CrossRefGoogle Scholar
- 27.de Sá IP, Higuera JM, Costa VC et al (2019) Determination of trace elements in meat and fish samples by MIP OES using solid-phase extraction. Food Anal Methods:1–11. https://doi.org/10.1007/s12161-019-01615-3
- 31.Costa JAS, Garcia ACFS, Santos DO, Sarmento VHV, Mesquita ME, Romão LPC (2015) Applications of inorganic-organic mesoporous materials constructed by self-assembly processes for removal of benzo[k]fluoranthene and benzo[b]fluoranthene. J Sol-Gel Sci Technol 75:495–507. https://doi.org/10.1007/s10971-015-3720-6 CrossRefGoogle Scholar
- 33.Costa JAS, Sarmento VHV, Romão LPC, Paranhos CM (2019) Synthesis of functionalized mesoporous material from rice husk ash and its application in the removal of the polycyclic aromatic hydrocarbons. Environ Sci Pollut Res 26:25476–25490. https://doi.org/10.1007/s11356-019-05852-1 CrossRefGoogle Scholar
- 34.Costa JAS, Sarmento VHV, Romão LPC, Paranhos CM (2019) Adsorption of organic compounds on mesoporous material from rice husk ash (RHA). Biomass Convers Bior:1–16. https://doi.org/10.1007/s13399-019-00476-4
- 35.Costa JAS, Sarmento VHV, Romão LPC, Paranhos CM (2019) Performance of the MCM-41-NH2 functionalized mesoporous material synthetized from the rice husk ash on the removal of the polycyclic aromatic hydrocarbons. Silicon. https://doi.org/10.1007/s12633-019-00289-0
- 37.Costa JAS, Vedovello P, Paranhos CM (2019) Use of ionic liquid as template for hydrothermal synthesis of the MCM-41 mesoporous material. Silicon.:1–6. https://doi.org/10.1007/s12633-019-00121-9
- 40.Oliveira LF, Canevari NT, Guerra MBB et al (2013) Proposition of a simple method for chromium (VI) determination in soils from remote places applying digital images: a case study from brazilian antarctic station. Microchem J 109:165–169. https://doi.org/10.1016/j.microc.2012.03.007 CrossRefGoogle Scholar
- 50.International Organization for Standardization. (2007) ISO 17075. Leather: Chemical tests. Determination of chromium(VI) content, First EditionGoogle Scholar
- 57.Norouzi S, Heidari M, Alipour V, Rahmanian O, Fazlzadeh M, Mohammadi-Moghadam F, Nourmoradi H, Goudarzi B, Dindarloo K (2018) Preparation, characterization and Cr(VI) adsorption evaluation of NaOH-activated carbon produced from date press cake; an agro-industrial waste. Bioresour Technol 258:48–56. https://doi.org/10.1016/j.biortech.2018.02.106 CrossRefPubMedGoogle Scholar