Open AccessReduction of Uranium(VI) to Uranium(IV) by Clostridia
Author(s) -
Weimin Gao,
A.J. Francis
Publication year - 2008
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.00239-08
Subject(s) - clostridia , uranium , clostridium , nitrate , chemistry , microbiology and biotechnology , biology , bacteria , materials science , organic chemistry , metallurgy , genetics
Several different species of clostridia reduced U(VI) to U(IV) to various degrees. The optimal pH for U(VI) reduction is 5 to 6 in most cases; aClostridium sp. showed the highest rate at pH 4. Nitrate did not affect U(VI) reduction, indicating that this process in clostridia is nitrate independent.