John Aston, Ph.D.
Research Areas: Advanced Preprocessing
Biography: Dr. John Aston is a staff engineer in Idaho National Laboratory’s Biological and Chemical Processing Department. His work involves applying chemical and biochemical engineering to research that improves the physical, structural and chemical properties of biomass feedstocks for thermochemical and biochemical conversions to biofuels and biochemicals. He earned his doctorate in chemical and biological engineering from Montana State University in 2010. He received his master’s from Washington State University and his bachelor’s from University of Idaho. He is a member the American Institute of Chemical Engineers, chairing sessions at the organization’s general meetings within the Sustainable Biorefinery Platform.
Ph.D., Chemical and Biological Engineering - Montana State University
M.S., Chemical Engineering - Washington State University
B.S., Chemical Engineering - University of Idaho
American Institute of Chemical Engineers
Aston JA, Thompson DN and Westover TL (2016) Performance assessment of dilute-acid leaching to improve corn stover quality for thermochemical conversion. Fuel 186:311-319.
Li C, Aston JA, Lacey JA, Thompson VS and Thompson DN (2016) Impact of feedstock quality and variation on biochemical and thermochemical conversion. Renewable and Sustainable Energy Reviews. 65:525-536.
Thompson VS, Lacey JA, Hartley D, Jindra MA, Aston JE and Thompson DN (2016) Application of air classification and formulation to manage feedstock cost, quality and availability for bioenergy. Fuel 180:497-505.
Aston JE, Apel WA, Lee BD, Thompson DN, Lacey JA, Newby DT, Reed DW and Thompson VS (2016) Degradation of phenolic compounds by the lignocellulose deconstructing thermoacidophilic bacterium Alicyclobacillus Acidocaldarius. Journal of Microbiology and Biotechnology 43:13-23.
Lacey JA, Aston JE, Westover TL, Cherry RS and Thompson DN (2015) Removal of introduced inorganic content from chipped forest residues via air classification. Fuel 160:265-273.
Aston JE, Apel WA, Lee BD and Peyton BM (2011) Growth effects and assimilation of organic acids in batch and chemostat cultures of Acidithiobacillus caldus. World Journal of Microbiology and Biotechnology 27:153–161.
Aston JE, Apel WA, Lee BD and Peyton BM (2010) Effects of cell condition, pH, and temperature on lead, zinc, and copper sorption to Acidithiobacillus caldus. Journal of Hazardous Materials 184:34–41.
Aston JE, Apel WA, Lee BD and Peyton BM (2010) “Effects of ferrous sulfate, inoculum history, and anionic form on lead, zinc, and copper toxicity to Acidithiobacillus caldus strain BC13. Environmental Toxicology and Chemistry 29:2669–2675.
Taffs R., Aston JE, Brileya K, Jay Z, Klatt CG, McGlynn S, Mallette N, Montross S, Gerlach R, Inskeep WP, Ward DM and Carlson RP (2009) In silico approaches to study mass and energy flows in microbial consortia: a syntrophic case study. BMC Systems Biology 3:114.
Aston JE, Apel WA, Lee BD and Peyton BM. (2009)Toxicity of select organic acids to the slightly thermophilic acidophile, Acidithiobacillus caldus. Environmental Toxicology and Chemistry 28:279–286.
Aston JE and Peyton BM. (2007) Response of Halomonas campisalis to saline stress: Changes in growth kinetics, compatible solute production, and membrane phospholipid fatty acid composition. FEMS Microbiology Letters 274:196–203.
Gaffney AM, Thompson VS, Lacey JA, Aston JA, Hartley DS, Searcy EM, Thompson DN “Idaho National Laboratory’s New Biomass Pretreatment Process using Low Waste Woody Materials to Produce Biofuels” American Chemical Society, Philadelphia, Pennsylvania, August, 2016.
Thompson DN, Li C, Aston JE, Lacey JA, Thompson VS, Williams LC, Emerson RM, Hoover AN, Gresham GL “Feedstock quality: A poorly understood but critical aspect for the development of a biorefining industry” 38th Symposium on Biotechnology for Fuels and Chemicals, Baltimore, Maryland, April 2016.
Thompson VS, Lacey JA, Hartley D, Searcy E, Thompson DN “Application of air classification, acid leaching and formulation to manage feedstock cost, quality and quantity for bioenergy” 38th Symposium on Biotechnology for Fuels and Chemicals, Baltimore, Maryland, April 2016.
Thompson DN, Thompson VS, Lacey JA, Hartley DS, Jindra MA and Aston JE “Strategies for post-harvest reduction of ash content in biomass feedstocks” Agricultural Equipment Technology Conference, Louisville, Kentucky, February 2016.
Aston JA, Tumuluru JS, Lacey JA, Thompson DN, Thompson VS, Fox SL “Alkaline Deacetylation of Corn Stover: Effects on Feedstock Quality” AIChE General Meeting, Salt Lake City, Utah, November 2015.
Lacey JA, Aston JE, Westover TL, Cherry RS, Thompson DN “Biomass Fractionation Methods for Ash Removal: Sieving, Anatomical, and Air Classification” 37th Symposium on Biotechnology for Fuels and Chemicals, San Diego, California, April 2015.
Aston JA “Using Metabolic Flux Models to Optimize the Biological Production of Value-Added Chemicals from CO2.” Society for Industrial Microbiology and Biotechnology, Washington D.C., August, 2012.
Aston JA “Microbial Consortia from Geochemical Gradients: Applications to a Coupled Biological and Physical Treatment for Produced Waters.” Water Use and Treatment: Improving Efficiency through Technology, British Petroleum, Houston, Texas, May 2012.
Lee BD, Apel WA, Aston JA, Walton S, and Carlson R “Potential for production of metabolites by Alicyclobacillus acidocaldarius” Society for Industrial Microbiology Annual Meeting and Exhibition, New Orleans, Louisiana, July 2011.
Aston JE “Effects of organic acids and metals on the biomining bacterium: Acidithiobacillus caldus.” Research Seminar, Biological Systems Department, Idaho National Laboratory, Idaho Falls, Idaho, March 2010.
Aston JE “Effects of organic acids and metals on the biomining bacterium: Acidithiobacillus caldus.” Research Seminar, Department of Chemical Engineering, Washington State University, Pullman, Washington, February 2010.
Aston JE “Metal Interactions with Acidithiobacillus caldus: toxicity and sorption.” Sixth International Biometals Symposium, Santiago de Compostela, Spain, July 2008.
Aston JE “Halomonas campisalis and the importance of Soap Lake halophiles.” Soap Lake Science Conservatory, Soap Lake, Washington, August 2005.
Aston JE "Importance and application of native Soap Lake microbial consortia." Native American Advisory Board to the President, Washington State University, Pullman, Washington, April 2005.