Steady-state nitrogen isotope effects of N2 and N2O production in Paracoccus denitrificans
Article Abstract:
The role of nitrogen stable isotopes in the production of N2 and N2O in Paracoccus denitrificans has been examined. A steady-state reactor, which does not require a dedicated mass spectrometer or an online sample preparation system, has been constructed to measure denitrification effects in P. denitrificans. The reactor is also used in measuring oxygen isotope effects. The data gathered expand the usefulness of stable isotope studies of denitrification under low-oxygen regimes.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1999
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Nitrogen removal by tubular gel containing Nitrosomonas europaea and Paracoccus denitrificans
Article Abstract:
A bioreactor using tubular polymeric gel containing Nitrosomonas europaea and Paracoccus denitrificans removes nitrogen from wastewater. The outer surface of the tube is in aerobic contact with the wastewater containing ammonia, whereas the inside of the tube is in anaerobic contact with ethanol flowing through the tube. The process involves oxidation of ammonia by N. europaea followed by reduction of the nitrite to nitrogen gas by P. denitrificans.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 1996
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Distribution of Nitrosomonas europaea and Paracoccus denitrificans immobilized in tubular polymeric gel for nitrogen removal
Article Abstract:
Results demonstrate that nitrogen removal by the immobilized bacteria is improved by changing their distribution in a tubular gel. Data indicate the distribution pattern changes depending on the carbon source added.
Publication Name: Applied and Environmental Microbiology
Subject: Biological sciences
ISSN: 0099-2240
Year: 2000
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