All Presentations (pdf)

8:15 Brent Means
10:10 James J. Gusek
12:40 Jonathan M. Dietz
2:15 Kimberly R. Weaver
4:00 Brent Means

8:45 Robert Kleinmann
9:15 Brent Means
9:30 James J. Gusek
10:00 Glenn C. Miller
10:30 Linda Ann Figueroa
12:40 Art Rose
1:10 Charles A. Cravotta III
1:40 Danielle M C Huminicki
2:50 Bernard Aube
3:20 Timothy K. Tsukamoto
3:50 Bradley R. Shultz
4:20 Kimberly R. Weaver


8:00 Linda Ann Figueroa
8:30 John Senko
9:00 Song Jin
10:10 Jonathan M. Dietz
10:40 Daryle H. Fish
12:40 John Chermak
1:10 Griff Wyatt
1:40 Dan Mueller
2:50 Sean C. Muller
3:20 Jack Adams
3:50 Roger Bason
3:50 Mark B. Carew

8:00 Rep. John E. Peterson
8:30 Scott Sibley
9:00 Charles A. Cravotta III
9:30 Michael R. Silsbee
10:30 Lykourgos Iordanidis
11:00 Mark Conedera
11:30 Barry Scheetz
1:25 William Benusa
1:55 Mike Sawayda
2:25 Susan J. Tewalt
3:25 Robert S. Hedin
3:55 Chad J. Penn

4:25 Ron Neufeld

Wednesday 8:00 Linda Ann Figueroa, Associate Prof of Environmental Science and Engineering, Colorado School of Mines

Microbiology of Manganese Oxidation


Linda A. Figueroa, Ph.D, P.E.
Colorado School of Mines
1500 Illinois Street
Golden, CO 80401


The phenomenon of microbial manganese oxidation is well established. However, the design of microbial manganese oxidation systems is hampered by the lack of understanding about the specific conditions required to sustain microbial manganese oxidation. Recent studies suggest that the ability of microorganism to oxidize manganese is ubiquitous and specialized bacteria are not required. In addition, carbon stress and metal toxicity have been identified as factors that stimulate microbial manganese oxidation. This presentation will synthesize the current understanding of the microbiology and suggest strategies to improve the design and operation of microbial manganese oxidizing systems.



Dr. Linda A. Figueroa is an Associate Professor of Environmental Science and Engineering at the Colorado School of Mines. She is a registered professional engineer and has more than 20 years of experience in research and design of treatment processes. Prior to joining the Colorado School of Mines she held engineering positions at environmental engineering consulting companies. She has more than 30 technical papers and journal articles in the area of treatment.

Since 1992 Dr. Figueroa has been involved in the remediation and treatment of metals and radionuclides primarily with bioprocesses. Dr. Figueroa is active in the Acid Drainage Technology Initiative-Metal Mining Sector where she is involved in the review and development of resources on available technology options for mine sites. Dr. Figueroa is the technology focus area leader of the Rocky Mountain Regional Hazardous Substance Research Center for Mine Waste Remediation. Her teaching experience has included courses on microbiology, treatment and waste management.