Date of Award
2013
Publisher
North Dakota State University
Document Type
Thesis
Degree Awarded
Master of Science (MS)
Program
Environmental and Conservation Science
Department
Biological Sciences
College
Graduate and Interdisciplinary Studies
Faculty Advisor
Oduor, Peter G.
Description
Increasing levels of nitrate (NO3-N) in water resources have brought about the need to find ever more versatile forms of NO3-N removal from contaminated water. The ability of several microorganisms to transform NO3-N has been embraced as an economical form of bioremediation. Free cell and immobilized forms of Methylobacterium fujisawaense ATCC® No. 35065 (M. fujisawaense) were used in this study for NO3-N removal in batch settings. NO3-N removal results were as high as 100% for freely suspended cells after 96 hours and 95% for immobilized cells also after 96 hours. Statistical analyses found no significant difference in overall NO3-N removal rates between free cell and immobilized systems. These findings suggest that the organism is capable of up to full assimilation of 10 mg/L NO3-N in certain settings. The findings also suggest that the NO3-N assimilating ability of M. fujisawaense of 10 mg/L NO3-N is not greatly altered by immobilization.
Recommended Citation
Lies, Deidra Angeline, "Evaluation of a Nitrate-Assimilating Bacterium for Potential Use in Nitrate Bioremediation" (2013). Environmental and Conservation Sciences. 55.
https://digitalcommons.ndsu.edu/env-conservation-sci/55
Rights
NDSU Policy 190.6.2
Handle Identifier
https://hdl.handle.net/10365/27113