Open AccessDistribution of Nitrosomonas europaea and Paracoccus denitrificans Immobilized in Tubular Polymeric Gel for Nitrogen Removal
Author(s) -
Hiroaki Uemoto,
Hiroshi Saiki
Publication year - 2000
Publication title -
applied and environmental microbiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.552
H-Index - 324
eISSN - 1070-6291
pISSN - 0099-2240
DOI - 10.1128/aem.66.2.816-819.2000
Subject(s) - paracoccus denitrificans , nitrosomonas europaea , nitrosomonas , nitrogen , chemistry , ammonia , chromatography , nuclear chemistry , nitrification , biochemistry , organic chemistry , enzyme
To improve the cooperative removal of nitrogen byNitrosomonas europaea andParacoccus 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 ofP. denitrificans shifted to the inside of the tube and was separated from that ofN. europaea . The separation resulted in an increase of the oxidation rate of ammonia by 25%.