Impact of Iron-Reducing Bacteria on Metals and Radionuclides Adsorbed to Humic-Coated Iron(III) Oxides

Burgos, W. D.

Pennsylvania State University

关键词: Humic Acids;    Biogeochemistry;    Heavy Metals;    59 Basic Biological Sciences;    Adsorption;   

DOI  :  10.2172/876706
RP-ID  :  DOE/ER/62691-1
RP-ID  :  FG02-98ER62691
RP-ID  :  876706

美国|英语

来源: UNT Digital Library

【 摘 要 】

This is the final report for Grant No. DEFGO2-98ER62691 submitted to the DOE NABR Program. This research has focused on (1) the role of natural organic matter (NOM), quinines, and complexants in enhancing the biological reduction of solid-phase crystalline ferric oxides, (2) the effect of heavy metals (specifically zinc) and NOM on ferric oxide bioreduction, (3) the sorption of Me(II) [Cu(II), Fe(II), Mn(II) and Zn(II)] to ferric oxides and subsequent Me(II)-promoted phase transformations of the ferric oxides, and (4) the development of reaction-based biogeochemical models to numerically simulate our experimental results.