دورية أكاديمية
Removal of toxic metals using endocarp of açaí berry as biosorbent.
| العنوان: | Removal of toxic metals using endocarp of açaí berry as biosorbent. |
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| المؤلفون: | Gonçalves AC Jr; Center for Agricultural Sciences, State University of Western Paraná, Pernambuco street, 1777, CEP 85960-000, Marechal Cândido Rondon - Paraná, Brazil E-mail: affonso133@hotmail.com., Schwantes D; Department of Engineering and Exact Sciences, Federal University of Paraná, Palotina Sector - Pioneiro Street, 2153, CEP: 85950-000 Palotina - Paraná, Brazil., Campagnolo MA; Environmental Engineering, Polytechnic School - Toledo, Pontifical Catholic University of Paraná, União Avenue, 500, CEP: 85902-532, Toledo - Paraná, Brazil., Dragunski DC; Department of Chemistry, State University of Western Paraná, College street, 645, CEP 85903-000, Toledo - Paraná, Brazil., Tarley CRT; Department of Chemistry, Londrina State University, Celso Garcia Cid Highway, CEP 86050-482, Londrina - Paraná Brazil., Silva AKDS; Center for Agricultural Sciences, State University of Western Paraná, Pernambuco street, 1777, CEP 85960-000, Marechal Cândido Rondon - Paraná, Brazil E-mail: affonso133@hotmail.com. |
| المصدر: | Water science and technology : a journal of the International Association on Water Pollution Research [Water Sci Technol] 2018 Mar; Vol. 77 (5-6), pp. 1547-1557. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: IWA Publishing Country of Publication: England NLM ID: 9879497 Publication Model: Print Cited Medium: Print ISSN: 0273-1223 (Print) Linking ISSN: 02731223 NLM ISO Abbreviation: Water Sci Technol Subsets: MEDLINE |
| أسماء مطبوعة: | Publication: <1998->: London : IWA Publishing Original Publication: Oxford ; New York : Pergamon Press, 1981- |
| مواضيع طبية MeSH: | Cadmium/*chemistry , Chromium/*chemistry , Euterpe/*chemistry , Lead/*chemistry , Water Pollutants, Chemical/*chemistry, Adsorption ; Biomass ; Hydrogen-Ion Concentration ; Ions ; Kinetics ; Solutions ; Thermodynamics ; Waste Disposal, Fluid/methods |
| مستخلص: | The effectiveness of açaí endocarp as biosorbent for removal of Cd 2+ , Pb 2+ and Cr 3+ from single solute solutions was analyzed. The biomass of açaí endocarp was characterized by scanning electron microscopy, infrared spectroscopy and determining the point of zero charge. The optimum conditions for adsorption process were obtained at solution pH 6.0 for Cd(II) removal, pH 5.0 for Pb(II) removal, and, pH 4.0 for Cr(III). Furthermore, the average optimum efficiency of biosorbent in the optimum conditions was 8, 20 and 12 g of biosorbent per litre of contaminant solution, respectively, for Cd(II), Pb(II) and Cr(III). The best dynamic equilibrium time was reached at 60 min and Langmuir's model had the best fit for Cd(II) and Cr(III) biosorption, indicating a monolayer adsorption. Freundlich's model exhibited the best fit for Pb(II) ion. Elution rates were low, indicating a strong metal interaction with the adsorbent's surface. Thermodynamic parameters showed a spontaneous and endothermal process in the case of Cd(II) and Pb(II) ions, but not for Cr(III) ion, which appears to be an exothermic process. Results show that the use of the açaí biosorbent may be a promising alternative for the remediation of polluted water, due to its low cost and highly availability. |
| المشرفين على المادة: | 0 (Ions) 0 (Solutions) 0 (Water Pollutants, Chemical) 00BH33GNGH (Cadmium) 0R0008Q3JB (Chromium) 2P299V784P (Lead) |
| تواريخ الأحداث: | Date Created: 20180330 Date Completed: 20180723 Latest Revision: 20181202 |
| رمز التحديث: | 20231215 |
| DOI: | 10.2166/wst.2018.032 |
| PMID: | 29595157 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 0273-1223 |
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| DOI: | 10.2166/wst.2018.032 |