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Filtering by: Creator Grasso, Kyla A. Committee Member Bottomley, Peter

Inhibition of the ammonia oxidizing bacteria Nitrosomonas europaea by the emerging contaminant triclosan

Creator:

Hughes, Jamie L.

Abstract:

Identifying the inhibition of ammonia oxidizing bacteria (AOB) by emerging organic contaminants is crucial due to the importance of AOB in wastewater treatment, the widespread use of antibacterial agents such as triclosan (TCS) in consumer products, and the sensitivity of N. europaea to inhibitors. Triclosan inhibition of nitrification by AOB...

Resource Type:

Masters Thesis

Full Text:

in a chemostat. Specific oxygen uptake rate tests (SOURs) were performed on both the ammonia
Physiological response of Nitrosomonas europaea to oxytetracycline, chromium, and silver

Creator:

Schaerer, Morgan A.

Abstract:

Nitrosomonas europaea carries out the first step in the biological nitrogen removal process in wastewater treatment by oxidizing ammonia to nitrite. It has been shown to be sensitive to a wide range of contaminants. The antibiotic oxytetracycline and the heavy metals chromium and silver have been found in wastewater influent....

Resource Type:

Masters Thesis

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Morgan A. Schaerer for the degree of Master of Science in Chemical Engineering presented on September
Transcriptional and physiological response of Nitrosomonas europaea to inhibition by chlorinated aromatics and heavy metals

Creator:

Sandborgh, Sean C.

Abstract:

This research investigates the physiological and transcriptional responses of Nitrosomonas europaea when exposed to chlorinated aromatic compounds and heavy metals under varying environmental conditions. It was found that transcriptional responses of identified sentinel genes correlate well with nitrification inhibition. Sorption of metals to biomass was also investigated and found not...

Resource Type:

Dissertation

Full Text:

2460 N. europaea genes were significantly up-regulated after a 1-hour exposure to 4 µM chlorobenzene