Spring 2015 Seminars

The Civil and Environmental Engineering Department seminar series is usually held the 2nd and 4th Wednesdays of every month from 4:00-4:50 pm in the Classroom Building, CB204W. The SDSM&T and engineering community are welcome to attend. Professional development hour (PDH) certificates will be mailed to attendees upon request for the seminars noted below. For more information, contact Dr. Soonkie Nam (Soonkie.Nam@sdsmt.edu).

Spring 2015 Schedule

Wednesday, January, 28, 2015:

TITLE:  Geochemical Modeling of the Down Gradient Transport Potential of Uranium at an In-Situ Recovery (ISR) Facility
PRESENTER: James J. Stone, Ph.D., P.E. Associate Professor, Civil and Environmental Engineering, SDSM&T
ABSTRACT:  In situ recovery (ISR) uranium mine restoration is generally based upon a return of the site to baseline conditions.  Restoration is an expensive and time intensive task, and most sites are unable to restore the groundwater to baseline conditions for all constituents.  However, as the water travels down gradient, the aquifer may possess some degree of natural contaminant attenuation that allows for restoration to alternate concentration limits.  Surface complexation modeling provides useful insight into the physical removal capabilities of an aquifer that can aid stakeholders in better understanding restoration needs.  To accomplish this, we present a 1-D Uranium transport surface complexation model of the Mine Unit 3 extension of the Highlands-Smith Ranch ISR site near Douglas, Wyoming.  The modeling effort uses a general composite approach which incorporates batch tests with 4 core depths and 3 concentrations of pCO2 for model calibration.  PHREEQC was used for the geochemical and transport calculations and a parameter estimation software, PEST, was used to aid in model calibration.  The results predict significant uranium plume retardation in terms of both peak concentration and velocity, and stress the importance of understanding site heterogeneity, pCO2 concentrations, and calcium uranyl carbonate complexes for developing aquifer restoration strategies.
BIO:  Jim Stone is an Associate Professor within the Department of Civil and Environmental Engineering at SDSM&T.  His research focus in a broad sense is contaminant fate and transport in complex environmental systems, and sustainability.  More details regarding his research group may be found at http://jamesstonesdsmt.wix.com/stone
**PDH Credit Available

In addition to seminars yet to be scheduled, we invite and encourage you to attend the following conferences this spring:

Friday, March 6, 2104:  Annual Concrete Conference

Theme:  High Performance Concrete
Where:  Surbeck Center Ballroom
Time:  7:55 am – 5:00 pm
Schedule & Speaker Information:  https://concreteconferencebrochure
Register Online:  https://interact.sdsmt.edu/conference/registration-concrete.htm
Early Registration (thru February 27, 2015):  $145.00 (+Tax $8.70 if applicable)              
Students & Retirees Registration:  $30.00,
**7 PDH Credits Available

Wednesday, April 16, 2015:  Western South Dakota Hydrology Conference

Theme:  Reliability, Vulnerability, and Resiliency
Where:  Rushmore Plaza Civic Center, Rapid City, SD
Keynote Speaker:   Rob Harmon, President and CEO of EnergyRM, Presentation Title: “How Markets and People Can Keep Streams Flowing”
Registration Available Online February 9, 2015:  http://sd.water.usgs.gov/WSDconf/
Early Registration (February 9 – March 9, 2015):  $70.00 (+Tax $8.70 if applicable)         
Students Registration:  Free (optional $20 lunch available), **PDH Credits Available
Potential Speaker & Poster Presenters: Abstracts for oral and poster presentations will be accepted through January 13, 2015. Abstracts concerning any earth science topic are welcomed, as are student presentations and posters. Abstracts concerning reliability, vulnerability, and resiliency are especially welcomed as that is our theme for 2015. The 2015 conference will include a poster session for both professionals and students. The poster session will include a student poster contest with prizes awarded for 1st ($300), 2nd ($200), and 3rd ($100) places.  All speakers and poster presenters will be required to pay conference registration fees unless they have student status. All speakers and poster presenters will be notified of abstract acceptance by February 2, 2015. For more information and instructions for abstract submittal for both oral and poster presentations, go to http://sd.water.usgs.gov/WSDconf/callforabstracts.pdf.  When submitting an abstract to the 2015 conference, please indicate whether oral presentation or poster is preferred.