Removal of benzidine from polluted water by soluble and immobilized peroxidase in batch processes and continuous horizontal bed reactor
Bitter gourd peroxidase entrapped on calcium-alginate-starch beads was employed for the treatment of water, polluted with benzidine, in a batch process as well as in a continuous reactor. The immobilized enzyme had the same pH and temperature optima as the soluble enzyme. The immobilized enzyme coul...
| Veröffentlicht in: | Environmental technology. - 1998. - 32(2011), 1-2 vom: 28. Jan., Seite 83-91 |
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| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2011
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| Zugriff auf das übergeordnete Werk: | Environmental technology |
| Schlagworte: | Comparative Study Journal Article Research Support, Non-U.S. Gov't Alginates Benzidines Enzymes, Immobilized Hexuronic Acids Polysorbates Water Pollutants, Chemical benzidine mehr... |
| Zusammenfassung: | Bitter gourd peroxidase entrapped on calcium-alginate-starch beads was employed for the treatment of water, polluted with benzidine, in a batch process as well as in a continuous reactor. The immobilized enzyme had the same pH and temperature optima as the soluble enzyme. The immobilized enzyme could effectively remove more than 70% of benzidine in a stirred batch process after three hours. After its sixth repeated use, the immobilized enzyme was able to oxidatively degrade and polymerize 58% of benzidine. The horizontal bed reactor, containing the peroxidase entrapped on calcium-alginate-starch beads, retained more than 40% benzidine removal efficiency after one month of its continuous operation. The absorption spectra of the treated benzidine exhibited a marked difference in the absorption at various wavelengths, compared with untreated compound. The horizontal bed reactor containing immobilized peroxidase would be significantly successful for the large-scale treatment of water polluted with aromatic compounds |
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| Beschreibung: | Date Completed 07.06.2011 Date Revised 01.12.2018 published: Print Citation Status MEDLINE |
| ISSN: | 0959-3330 |
| DOI: | 10.1080/09593330.2010.487547 |