Alginate‐Encapsulated Bacteria for the Treatment of Hypersaline Solutions in Microbial Fuel Cells
| Autor: | Bassam Alkotaini, Matteo Grattieri, Samantha L. Tinucci, Shelley D. Minteer, Kamrul Hasan, Stuart J. Robertson |
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| Rok vydání: | 2018 |
| Předmět: |
Microbial fuel cell
Chemistry Organic Chemistry Chemical oxygen demand 02 engineering and technology 010501 environmental sciences 021001 nanoscience & nanotechnology Pulp and paper industry 01 natural sciences Biochemistry Stable system Cell density Salinivibrio sp Molecular Medicine Degradation process Encapsulated bacteria 0210 nano-technology Molecular Biology 0105 earth and related environmental sciences |
| Zdroj: | ChemBioChem. 19:1162-1169 |
| ISSN: | 1439-7633 1439-4227 |
| Popis: | A microbial fuel cell (MFC) based on a new wild-type strain of Salinivibrio sp. allowed the self-sustained treatment of hypersaline solutions (100 g L-1 , 1.71 m NaCl), reaching a removal of (87±11) % of the initial chemical oxygen demand after five days of operation, being the highest value achieved for hypersaline MFC. The degradation process and the evolution of the open circuit potential of the MFCs were correlated, opening the possibility for online monitoring of the treatment. The use of alginate capsules to trap bacterial cells, increasing cell density and stability, resulted in an eightfold higher power output, together with a more stable system, allowing operation up to five months with no maintenance required. The reported results are of critical importance to efforts to develop a sustainable and cost-effective system that treats hypersaline waste streams and reduces the quantity of polluting compounds released. |
| Databáze: | OpenAIRE |
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