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Shanmugasundram Ramesh Lee Cheng-Ming Sublette Kerry L. 《Applied biochemistry and biotechnology》1993,(1):727-737
Two heterotrophic denitrifying bacteria,Paracoccus denitrificans andPseudomonas denitrificans, have been shown to utilize nitric oxide (NO) as a terminal electron acceptor and succinate, yeast extract, and heat/alkali
pretreated municipal sewage sludge as carbon and energy sources. Complete removal of NO (0.50%) from a feed gas sparged into
the cultures was observed. It is suggested that reduction of NO may be a common feature of denitrifying bacteria and that
a microbial process to dispose of NOx may be economically viable. 相似文献
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Biomimetic and microbial reduction of nitric oxide 总被引:1,自引:0,他引:1
Potter W. T. Le Uyen Ronda Suzanne Cho Jeong-Guk Shanmugasundram Ramesh Chirkis Allison Sublette Kerry L. 《Applied biochemistry and biotechnology》1995,(1):771-784
The biomimetic reduction of nitric oxide (NO) to nitrous oxide (N2O) by dithiothreitol in the presence of cyanocobalamin and cobaltcentered porphyrins has been investigated. Reactions were
monitored directly using Fourier Transform Infrared (FTIR) Spectroscopy vapor-phase spectra. Reaction rates were twofold faster
for the corrin than for the cobalt-centered porphyrins. The stoichiometry showed the loss of two molecules of NO per molecule
of N2O produced.
We have also demonstrated that the facultative anaerobe and chemoautotroph,Thiobacillus denitrificans, can be cultured anoxically in batch reactors using NO as a terminal electron acceptor with reduction to elemental nitrogen
(N2). We have proposed that the concentrated stream of NOx, as obtained from certain regenerable processes for the gas desulfurization and NOx removal, could be converted to N2 for disposal by contact with a culture ofT. denitrificans. Four heterotrophic bacteria have also been identified that may be grown in batch cultures with succinate, yeast extract,
or heat and alkali pretreated sewage sludge as carbon and energy sources and NO as a terminal electron acceptor. These areParacoccus dentrificans, Pseudomonas denitrificans, Alcaligens denitrificans, andThiophaera pantotropha. 相似文献
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