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

Monday 12:40 Jonathan M. Dietz, Iron Oxide Technologies

Chemistry, Design, and Operation of Limestone-based Passive Treatment Systems (sizing, kinetics, etc)


Jonathan M. Dietz, Ph.D.
Iron Oxide Technologies, LLC
672 Devonshire Drive
State College, PA 16803


The Passive treatment design workshop was developed for a technical audience with experience in water treatment. A strong understanding of undergraduate inorganic chemistry will be helpful.

Limestone-Based Passive Treatment
This section of the class will cover the types and theory of passive treatment systems that use limestone as the alkaline reagent. Controls on calcite solubility and dissolution rates will be covered along with information on how to size these treatment systems. Case studies and performance data will be covered.



B.S., Biology and Earth Science, Clarion University, 1983
M.S., Environmental Pollution Control, Penn State University, 1989
Ph.D. Environmental Engineering, Penn State, University, 2003

Jon Dietz has spent more than 15 years in the consulting industry conducting NEPA studies, water quality and aquatic ecology assessments, R&D of innovative technologies, and designing mine drainage treatment systems. Jon returned to Penn State University from the consulting industry in 2000 to continue his education and study environmental chemistry & engineering and has recently graduated with his Doctorate in Environmental Engineering. During his doctorate Jon developed “new” heterogeneous (surface chemistry) ferrous iron sorption & oxidation kinetic models, which he has used to develop the next generation of AMD treatment systems, known as AIS/SBR treatment of mine drainage. Jon also conducted research into abiotic manganese oxidation kinetics and alkalinity generation from limestone, based on kinetics and solubility reactions, which he has used to develop new passive treatment approaches. During his professional career Jon has conducted numerous AMD abatement projects including watershed assessments, watershed restoration plans, and prepared final and conceptual designs for over 30 discharges in the eastern U.S. coal region. He also has provided technical expertise on water resource studies including a variety of Environmental Assessments (EA), Environmental Impact Statements (EIS), 319 thermal discharge studies, National Pollution Discharge Elimination System (NPDES) studies, and surface water quality standards for ammonia (that have been promulgated for New Jersey waters). Jon has authored and/or co-authored over 50 technical reports, journal articles, proceedings and presentations during his professional career.