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Title: Bioremediation of Low Level Uranium (VI) Waste Including Denitrification Using Microbial Fuel Cell
Researcher : Vijay, Ankisha
Supervisor: Chhabra, Meenu
Department: Bioscience and Bioengineering
Issue Date: Jan-2019
Citation: Vijay, Ankisha. (2019). Bioremediation of Low Level Uranium (VI) Waste Including Denitrification Using Microbial Fuel Cell (Doctor's thesis). Indian Institute of Technology Jodhpur, Jodhpur.
Abstract: Nuclear wastes emerging from nuclear fuel cycle plants are generally rich in nitrates and heavy metals like Uranium. Nitrate and uranium have been identified as the major groundwater contaminants. Microbial fuel cells (MFCs) have the potential for denitrification and power production. However, the reported rates of denitrification in MFCs are low and there are no reports of U (VI) removal and/or simultaneous nitrate and U (VI) removal in a MFC. In this work, denitrification rate in a MFC is improved first by identifying an effective microbial consortium. High-rate denitrifying MFCs were developed using cow manure and soil. Further, the consortium was acclimatized under autotrophic (AD) and heterotrophic (HD) conditions to compare the power output and nitrate removal rate. The microbial communities were identified and found to exhibit resilience and high diversity. AD supported high power and HD supported high nitrate removal rate. Also, the abundance of denitrifying genes was assessed and they were present in both the conditions. The U (VI) was removed as a phosphate precipitate. Microbes at cathode produced phosphatase which liberated phosphate from an organic compound. Nitrate acted as an electron acceptor thereby allowing simultaneous nitrate and U (VI) removal. The work is extended to real low level effluents from nuclear fuel recycle division at BARC (Bhabha Atomic Research Centre), Mumbai. The MFC removed nitrate from these wastes while supporting power generation. In summary, this thesis work demonstrates the application of MFC for the removal of nitrate and U (VI) from contaminated water.
Pagination: xii, 91p.
Accession No.: TP00043
Appears in Collections:Ph. D. Theses

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TP00043.pdf5.24 MBAdobe PDFView/Open    Request a copy
01_title.pdf117.93 kBAdobe PDFView/Open
02_abstract.pdf92.38 kBAdobe PDFView/Open
03_acknowledgements.pdf125.5 kBAdobe PDFView/Open
04_contents.pdf161.56 kBAdobe PDFView/Open
05_list_of_figures.pdf136.58 kBAdobe PDFView/Open
06_list_of_tables.pdf115.87 kBAdobe PDFView/Open
07_list_of_symbols.pdf101.63 kBAdobe PDFView/Open
08_list_of_abbreviations.pdf109.11 kBAdobe PDFView/Open
09_chapter 1.pdf318.08 kBAdobe PDFView/Open
10_chapter 2.pdf1.83 MBAdobe PDFView/Open
11_chapter 3.pdf909.48 kBAdobe PDFView/Open
12_chapter 4.pdf1.35 MBAdobe PDFView/Open
13_chapter 5.pdf1.26 MBAdobe PDFView/Open
14_chapter 6 conclusions.pdf114.03 kBAdobe PDFView/Open
15_annexure A.pdf610.81 kBAdobe PDFView/Open
16_references.pdf576.66 kBAdobe PDFView/Open

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