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dc.contributor.authorGopi, Tejasrien_US
dc.identifier.citationGopi, T. (2021). Decolorization of azo dyes with Klebsiella Pneumoniae under high saline conditions. Doctoral thesis, Nanyang Technological University, Singapore.
dc.description.abstractTextile industries generate colored wastewater after the dyeing process and the color is still visible even at low concentrations such as ~10 ppm. If disposed untreated, they are toxic to the aquatic environment and negatively impact the soil fertility. Bioremediation was considered as the cost-effective and environmentally benign alternative over the past two decades. But dyes are large and heavy, structurally complex molecules and hence are not readily degradable. In the typical aerobic wastewater treatment systems, they either got trapped in the sludge or exited untreated requiring downstream processing while anaerobic biological treatment resulted in the formation of aromatic amines that are more toxic, persistent, and carcinogenic as compared to the parent dyes. Besides this, high dosages of salts such as chlorides and sulfates that are another consequence of dyeing often hinder the biodegradation of the dyes. To address these problems, this thesis work focuses on isolating a halotolerant facultative anaerobe that decolorizes and degrades industrially important sulfonated azo dyes in oxygen abundant conditions under the influence of sulfates and chlorides. Further, it involves tracking the fate of the by-products generated during decolorization.en_US
dc.publisherNanyang Technological Universityen_US
dc.rightsThis work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0).en_US
dc.subjectEngineering::Environmental engineering::Water treatmenten_US
dc.titleDecolorization of azo dyes with Klebsiella Pneumoniae under high saline conditionsen_US
dc.typeThesis-Doctor of Philosophyen_US
dc.contributor.supervisorChen Wei Ning, Williamen_US
dc.contributor.supervisorRichard D. Websteren_US
dc.contributor.schoolInterdisciplinary Graduate School (IGS)en_US
dc.description.degreeDoctor of Philosophyen_US
dc.contributor.researchNanyang Environment and Water Research Instituteen_US
dc.contributor.supervisor2Ng Wun Jernen_US
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