Postdoctoral Research Associate Reactive Transport Simulations of Porous and Fractured Media at Oak Ridge National Laboratory

Overview:   The Chemical Sciences Division (CSD) at Oak Ridge National Laboratory (ORNL) invites outstanding applications for a postdoctoral research associate to conduct research on simulating precipitation and dissolution of minerals in porous and fractured media. As a postdoc, you will utilize high performance computing at ORNL to work with a team of scientists in the CSD to model experimental tomography and porosity distribution data to improve our capabilities to predict how porosity and permeability evolve in geochemical systems in response to mineral reactions, especially by incorporating models built from realistic mineral reaction processes. The position supports research on understanding and analyzing chemical reactions of rocks and minerals, and resides in the Geochemistry and Interfacial Sciences Group in the Chemical Sciences Division, Physical Sciences Directorate (PSD) at Oak Ridge National Laboratory (ORNL).  

Major Duties/Responsibilities: 

  • Conduct independent research using pore-scale simulation approaches of geochemical reactions in idealized and natural porous media
  • Collaborate with ORNL researchers on the design and execution of chemical imaging and reactive transport experiments
  • Present and report research results and publish scientific findings in peer-reviewed journals in a timely manner
  • Ensure compliance with environment, safety, health and quality program requirements
  • Maintain strong commitment to the implementation and perpetuation of values and ethics

Basic Qualifications: 

  • A PhD in Physical Sciences or Chemical Engineering, such as Geology, Geochemistry, Chemistry, Materials Science, or related disciplines completed within the last 5 years
  • Experience in the design and implementation of numerical algorithms in one or more high-level computing languages (e.g., C++, Python)

Preferred Qualifications:

  • Strong background in reactive transport simulation and model development, such as experience with software such as OpenFOAM, Chombo-Crunch
  • Experience with simulating porous systems (especially simulation the pore-scale) and dual porosity systems, such as fractured porous media
  • Record of collaboration with experimentalists, especially comparison to observations of mineral precipitation/dissolution and fluid compositions
  • Excellent written and oral communication skills and the ability to communicate in English to an international scientific audience
  • Excellent record of productive and creative research demonstrated by publications in peer-reviewed journals
  • The abilities to be a self-starter, to work independently and to participate creatively in a collaborative team effort
  • Background in simulating precipitation and dissolution of minerals and effluent water composition
  • Knowledge of methods to model interface: Level-Set, Volume of Fluid, Arbitrary-Lagrangian-Eulerian  method, etc.
  • Strong skills to work with Linux or other Unix-like operating systems
  • Experience working with high-performance computing and hybrid parallelism such as MPI, OpenMP, or CUDA

Special Requirement:

Applicants cannot have received their Ph.D. more than five years prior to the date of application and must complete all degree requirements before starting their appointment. The appointment length will be up to 24 months with the potential for extension. Initial appointments and extensions are subject to performance and availability of funding.

Please provide a list of publications when applying for this position.  Three letters of reference are required and can be uploaded to your profile or emailed directly to  Please include the title of the position in the subject line.


Benefits at ORNL:  UT-Battelle offers a quality benefits package, including a matching 401(k), contributory pension plan, paid vacation, and medical/dental plan options. Onsite amenities include a credit union, medical clinic, cafeteria, coffee stands, and fitness facilities.   
Relocation:  Moving can be overwhelming and expensive. UT-Battelle offers a generous relocation package to ease the transition process. Domestic and international relocation assistance is available for certain positions. If invited to interview, be sure to ask your Recruiter (Talent Acquisition Partner) for details.

For more information about our benefits, working here, and living here, visit the “About” tab at

This position will remain open for a minimum of 5 days after which it will close when a qualified candidate is identified and/or hired.

We accept Word (.doc, .docx), Adobe (unsecured .pdf), Rich Text Format (.rtf), and HTML (.htm, .html) up to 5MB in size. Resumes from third party vendors will not be accepted; these resumes will be deleted and the candidates submitted will not be considered for employment.

If you have trouble applying for a position, please email

ORNL is an equal opportunity employer. All qualified applicants, including individuals with disabilities and protected veterans, are encouraged to apply.  UT-Battelle is an E-Verify employer.

The application can be found here:


Please contact Vitalii Starchenko ( or Andrew Stack ( for further information.


Postdoc Opportunity at University of Alaska Fairbanks

We are seeking a post-doctoral research associate to study mineral
weathering, soil development, and clay mineralogy in forested
ecosystems of the Alaskan coastal temperate rainforest. The study is
part of a broader investigation of critical zone processes in
southeast Alaska focused on the Heen Latinee Experimental Forest. This
project is closely tied to studies of aquatic biogeochemistry
investigating the generation of materials in terrestrial environments
and their export to aquatic ecosystems. The research associate will
focus on soil pedology, soil geochemistry, and rock and soil
mineralogy. The project is based in Juneau, Alaska in close
collaboration with the USDA Forest Service Pacific Northwest Research
Station (PNWRS; The research associate will work
with faculty at the University of Alaska Fairbanks and scientists at
PNWRS. Experience in soil science/geochemistry and x-ray diffraction
is strongly desired for this position.

Application instructions can be found at:

For more information please contact:

Dr. Tom Trainor
Department of Chemistry
University of Alaska Fairbanks

Dr. David D’Amore
USDA Forest Service
Pacific Northwest Research Station

Assistant Professor in Soil Chemistry at Auburn University

The Department of Crop, Soil, and Environmental Sciences in the College of Agriculture at Auburn University is seeking applications an Assistant Professor in Soil Chemistry. This faculty position will be a nine-month, tenure-track position with a 30% teaching and 70% research appointment. The projected start date is August 16, 2019. The successful candidate will develop a nationally recognized program which advances current understanding of soil chemical processes. Research areas which complement existing expertise include thermodynamics and kinetics of soil processes, soil contaminant speciation and reactivity, organo-mineral interactions in soils, redox processes, and principles of soil acidity. Teaching responsibilities for the position include 7-8 hours of course credit per academic year including an upper level undergraduate/graduate soil chemistry course and a graduate level environmental soil chemistry course.


Those interested in applying for the position can do so at the following link:

Postdoctoral Fellow Position in Chemical Sciences and Engineering Division, Argonne National Laboratory

We invite you to apply for a Postdoctoral Appointee position in the Chemical Sciences and Engineering Division, Argonne National Laboratory. In this role, you will perform innovative research to understand molecular-scale processes at the interface of rock forming minerals, especially sparingly soluble minerals such as barite and calcite, in contact with aqueous solutions.  You will investigate the interfacial structure and associated processes (including ion adsorption thermodynamics and kinetics, and mineral nucleation and growth) using synchrotron x-ray techniques and other complementary approaches, interpret the data, and present the results at scientific conferences and in peer-reviewed literature.


Details can be found in the Argonne Career website (shown below) using the Requisition number: 404758.


Please contact Sang Soo Lee ( or Paul Fenter ( for further information.


Graduate Student Position in Environmental Soil Chemistry, University of Delaware

A position is available for a graduate student, at the doctoral level, in the Environmental Soil Chemistry group of Donald L. Sparks, at the University of Delaware. The student could pursue research in several areas including climate change impacts on C cycling in soils, water salinization effects on biogeochemistry of nutrients in coastal ecosystems, and sea level rise effects on toxic metal transformations. The student should preferably have a M.S. degree in soil chemistry, geochemistry, or environmental chemistry with experience in materials (i.e., soils, minerals, carbon) characterization techniques, kinetic measurements, and molecular scale tools, particularly synchrotron-based and infrared spectroscopy.  The student would join a vibrant graduate program with excellent doctoral students, postdoctoral researchers, and visiting scholars. Our group is located in an interdisciplinary science and engineering building with modern laboratories, world class materials characterization, microscopy, and surface chemistry core facilities and is also home to allied disciplinary research groups in geochemistry, hydrogeology, environmental chemistry and engineering, materials science, and chemical engineering.


Interested students should send a cover letter including research interests along with a CV to:

Donald L. Sparks, Unidel S. Hallock du Pont Chair and Director of the Delaware Environmental Institute, Harker Interdisciplinary Science and Engineering Laboratory, 221 Academy St., Suite 250A, University of Delaware, Newark, DE 19716.