Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/217976
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dc.titleA PANEL OF LUMINESCENT BACTERIAL BIOREPORTERS FOR DETERMINATION OF TOXICITY MECHANISMS IN ELECTROCHEMICALLY-TREATED INDUSTRIAL WASTEWATER
dc.contributor.authorRICCARDO MUZZI
dc.date.accessioned2022-03-29T18:00:19Z
dc.date.available2022-03-29T18:00:19Z
dc.date.issued2021-08-18
dc.identifier.citationRICCARDO MUZZI (2021-08-18). A PANEL OF LUMINESCENT BACTERIAL BIOREPORTERS FOR DETERMINATION OF TOXICITY MECHANISMS IN ELECTROCHEMICALLY-TREATED INDUSTRIAL WASTEWATER. ScholarBank@NUS Repository.
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/217976
dc.description.abstractWastewater from industrial processes can contain a wide variety of organic species, often in high concentration and difficult to treat. Advanced oxidation processes (AOPs), based on the in-situ generation of hydroxyl radicals, can help with complete mineralization. During the treatment, however, the generation of toxic intermediate can take place, which would hinder the application of AOPs as a pre-treatment. The evolution of toxicity in electro-Fenton (EF) treatment of industrial wastewater was evaluated with a panel of bioluminescent bioreporter bacteria capable of differentiating the target of damage, with light emitted and bacterial growth absorbance monitored. The bacterial panel was able to identify a pattern of affected structures in the cell by the wastewater. From comparison with possible by-products of the treatment, formaldehyde was identified by the toxicity pattern. Chemical analysis confirmed the accumulation of formaldehyde to over 1000 ppm during electro-Fenton, not observed in other studies on similar wastewaters.
dc.language.isoen
dc.subjectElectro-Fenton, Bioreporter, Wastewater, Bioluminescence, Toxicity, Escherichia coli
dc.typeThesis
dc.contributor.departmentCIVIL & ENVIRONMENTAL ENGINEERING
dc.contributor.supervisorOlivier Patrick Lefebvre
dc.description.degreePh.D
dc.description.degreeconferredDOCTOR OF PHILOSOPHY (CDE-ENG)
Appears in Collections:Ph.D Theses (Open)

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