Iron Influence on Copper Biosorption Using Anaerobic Sludge and Its Microstructural Characterization
| Autor: | Evelia Acedo-Félix, R. Pérez-Moreno, M.T. Certucha-Barragán, Jesús L. Valenzuela-García, F. J. Almendariz-Tapia, Onofre Monge-Amaya, A. L. Leal-Cruz |
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| Rok vydání: | 2010 |
| Předmět: |
Anaerobic sludge
Chemistry Scanning electron microscope Mechanical Engineering Microorganism Metallurgy Biosorption chemistry.chemical_element General Chemistry Geotechnical Engineering and Engineering Geology Copper Matrix (chemical analysis) Economic Geology Water treatment Neutral ph Nuclear chemistry |
| Zdroj: | Mineral Processing and Extractive Metallurgy Review. 32:60-67 |
| ISSN: | 1547-7401 0882-7508 |
| DOI: | 10.1080/08827508.2010.530719 |
| Popis: | With the purpose of determining the copper biosorption mechanism, iron influence on the bioremoval, and methane production in a batch system using an anaerobic sludge a systematic study was carried out. In addition, sludge was characterized before and after biosorption treatment by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy-dispersive X-ray spectroscopy (EDS). According to results, Fe(III) has effect on copper biosorption. At neutral pH and concentrations from 50 to 300 mg/L, copper biosorption increases. However, at concentrations >300 mg/L a reduction in biosorption is observed. During biosorption, Fe(III) does not have an effect on both methane production and methanogenic activity; consequently, it is possible establishing that methanogenic bacteria are active under these conditions. Results of analysis by EDS reveal the copper presence into diatoms (2.66w%). In addition, biosorption of copper is by means diatoms-bacteria-polimeric matrix, and it is also bioaccumulated into... |
| Databáze: | OpenAIRE |
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