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Applied and Environmental Microbiology, February 2000, p. 816-819, Vol. 66, No. 2
Bio-Science Department, Central Research
Institute of Electric Power Industry, Abiko City, Chiba 270-1194, Japan
Received 28 July 1999/Accepted 16 November 1999
To improve the cooperative removal of nitrogen by
Nitrosomonas europaea and Paracoccus
denitrificans, we controlled their distribution in a tubular gel.
When ethanol was supplied inside the tubular gel as an electron donor,
their distributions overlapped in the external region of the gel. By
changing the electron donor from ethanol to gaseous hydrogen, the
distribution of P. denitrificans shifted to the inside of
the tube and was separated from that of N. europaea. The separation resulted in an increase of the oxidation
rate of ammonia by 25%.
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Copyright © 2000, American Society for Microbiology. All rights reserved.
Distribution of Nitrosomonas europaea and
Paracoccus denitrificans Immobilized in Tubular Polymeric
Gel for Nitrogen Removal
*
Corresponding author. Mailing address: Bio-Science
Department, Central Research Institute of Electric Power Industry, 1646 Abiko, Abiko City, Chiba 270-1194, Japan. Phone: (471) 82-1181. Fax:
(471) 83-3347. E-mail: uemoto{at}criepi.denken.or.jp.
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