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HBCU/MI ETC Projects at Florida A & M University

HBCU/MI ETC Projects at Florida A & M University Principal Investigators: Larry Robinson, Frederic Essien, and Elijah Johnson Graduate Student: Karen Sharpe Undergraduate Student: Valencia McGriff (Capacity: 2 graduate students; 4 undergraduate students) Deliverables

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HBCU/MI ETC Projects at Florida A & M University

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  1. HBCU/MI ETC Projects at Florida A & M University Principal Investigators: Larry Robinson, Frederic Essien, and Elijah Johnson Graduate Student: Karen Sharpe Undergraduate Student: Valencia McGriff (Capacity: 2 graduate students; 4 undergraduate students) Deliverables 1) Journal articles 2) Theses 3) Reports Instrument Acquisitions 1) Laser for Breakdown Spectroscopy 2) Gamma Ray Detector

  2. Project Title: Spatial Dependence of the Atmospheric Concentration of Particulate Matter (This project was developed during visits with James Droppo of Pacific Northwest National Laboratory.) A) Key Factors 1) Gravitational Settling 2) Particulate Matter Concentration 3) Resuspension 4) Turbulence (Dispersion) 5) Wind (Constant or Positional) B) Problem Background 1) Interest started with the question of particulate matter concentration near superfund sites. 2) A related problem in the literature is connected with radioactive material redistribution in the Chernobyl area of the Ukraine. 3) Dry deposition is a boundary condition. (It is not a direct treatment of gravitational settling.)

  3. C)Significance and Applications 1) “Well mixed” models give lower concentrations near the ground. The goals of this projects are more accurate ground level particulate matter concentrations. 2) Particulate matter concentrations near a source and as a function of altitude are useful in ecological risk assessments. D) Appropriateness for Solution 1) The constant wind case has been solved. 2) The solution for the case when the wind speed changes with altitude appears to be solvable analytically. E) Methods 1) Laplace Transforms 2) Numerical solution methods have not yet been used.

  4. Project Title: Experimental Study of Radionuclide Migration from the Ground Surface to the Subsurface and the Atmosphere A) Key Factors 1) Biosolids (Land Application of sludge) 2) Flux of components to ground water 3) Radioactive component of sludge 4) Resuspension (Dependence on landcover and weather) B) Background 1) Activity balance studies indicate that a fraction of land applied biosolids resuspend. 2) Most radioactivity in sludge is adsorbed to biosolids.

  5. C) Significance 1) Much sludge is applied to land subsurface (60%) 2) Answers to basis questions about the transport of contaminants in subsurface sludge are being sought. (For example: Fraction that resuspends, fraction transported to ground surface.) D) Methods 1) Transport theory (Modeling of transport processes) 2) Experiments (Measurements of concentration distributions and transport rates.) E) Future Work 1) Sludge radioactivity from Phosphate Mining/Processing. 2) Measurement of Radon Flux from Phosphogypsum tailings piles.

  6. From the Vision Statement of the HBCU/MI ETC: “Enabling communities to make informed decisions through educational outreach” Project Title: Evaluation of the Oak Ridge Health Agreement Steering Panel Final Report Community Organization Sponsor: Scarboro Community Oak Ridge Empowerment

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