Research Summary
Applies fundamental engineering science to microbial ecosystems, developing innovative strategies for a more sustainable agriculture and the emerging bio-based economy. Particular emphasis is on microbial processes that occur in three-phase porous media. These porous media systems are referred to variously as solid-state fermentation in the biotechnology, pharmaceutical and food processing industries; composting in the manure management and solid waste realms; ensilage on dairy and beef cattle farms; and soils in agroecosystems.
In the News
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Recent Publications
Impacts of the COVID-19 pandemic on pharmaceuticals in wastewater treated for beneficial reuse: Two case studies in central Pennsylvania
Hayden, K. R., Jones, M. J., Elkin, K. R., Shreve, M. J., Clees, W. I., Clark, S., Mashtare, M. L., Veith, T. L., Elliott, H. A., Watson, J. E., Silverman, J., Richard, T. L., Read, A. F. & Preisendanz, H. E., 2022, (Accepted/In press) In: Journal of Environmental Quality.Research output: Contribution to journal › Article › peer-review
Meeting global challenges with regenerative agriculture producing food and energy
Schulte, L. A., Dale, B. E., Bozzetto, S., Liebman, M., Souza, G. M., Haddad, N., Richard, T. L., Basso, B., Brown, R. C., Hilbert, J. A. & Arbuckle, J. G., May 2022, In: Nature Sustainability. 5, 5, p. 384-388 5 p.Research output: Contribution to journal › Review article › peer-review
Techno-economic Analysis and Life Cycle Assessment of an Integrated Wastewater-Derived Duckweed Biorefinery
Calicioglu, O., Femeena, P. V., Mutel, C. L., Sills, D. L., Richard, T. L. & Brennan, R. A., Jul 19 2021, In: ACS Sustainable Chemistry and Engineering. 9, 28, p. 9395-9408 14 p.Research output: Contribution to journal › Article › peer-review
Redefining marginal land for bioenergy crop production
Khanna, M., Chen, L., Basso, B., Cai, X., Field, J. L., Guan, K., Jiang, C., Lark, T. J., Richard, T. L., Spawn-Lee, S. A., Yang, P. & Zipp, K. Y., Oct 2021, In: GCB Bioenergy. 13, 10, p. 1590-1609 20 p.Research output: Contribution to journal › Review article › peer-review
A semi-commercial case study of willow biomass production in the northeastern United States
Montes, F., Fabio, E. S., Smart, L. B., Richard, T. L., Rodrigo Masip, A. & Kemanian, A. R., Mar 1 2021, In: Agronomy Journal. 113, 2, p. 1287-1302 16 p.Research output: Contribution to journal › Article › peer-review
The potential for expanding sustainable biogas production and some possible impacts in specific countries
Dale, B. E., Bozzetto, S., Couturier, C., Fabbri, C., Hilbert, J. A., Ong, R., Richard, T., Rossi, L., Thelen, K. D. & Woods, J., Nov 1 2020, In: Biofuels, Bioproducts and Biorefining. 14, 6, p. 1335-1347 13 p.Research output: Contribution to journal › Article › peer-review
Robust paths to net greenhouse gas mitigation and negative emissions via advanced biofuels
Field, J. L., Richard, T. L., Smithwick, E. A. H., Cai, H., Laser, M. S., LeBauer, D. S., Long, S. P., Paustian, K., Qin, Z., Sheehan, J. J., Smith, P., Wang, M. Q. & Lynd, L. R., Sep 8 2020, In: Proceedings of the National Academy of Sciences of the United States of America. 117, 36, p. 21968-21977 10 p.Research output: Contribution to journal › Article › peer-review
Technoeconomic and life-cycle analysis of single-step catalytic conversion of wet ethanol into fungible fuel blendstocks
Hannon, J. R., Lynd, L. R., Andrade, O., Benavides, P. T., Beckham, G. T., Biddy, M. J., Brown, N., Chagas, M. F., Davison, B. H., Foust, T., Junqueira, T. L., Laser, M. S., Li, Z., Richard, T., Tao, L., Tuskan, G. A., Wang, M., Woods, J. & Wyman, C. E., Jun 9 2020, In: Proceedings of the National Academy of Sciences of the United States of America. 117, 23, p. 12576-12583 8 p.Research output: Contribution to journal › Article › peer-review
Effects of ensiling time on corn silage neutral detergent fiber degradability and relationship between laboratory fiber analyses and in vivo digestibility
Hristov, A. N., Harper, M. T., Roth, G., Canale, C., Huhtanen, P., Richard, T. L. & DiMarco, K., Mar 2020, In: Journal of dairy science. 103, 3, p. 2333-2346 14 p.Research output: Contribution to journal › Article › peer-review
Anaerobic bioprocessing of wastewater-derived duckweed: Maximizing product yields in a biorefinery value cascade
Calicioglu, O., Richard, T. L. & Brennan, R. A., Oct 2019, In: Bioresource technology. 289, 121716.Research output: Contribution to journal › Article › peer-review
Economic comparative advantage of willow biomass in the Northeast USA
Langholtz, M., Eaton, L., Davis, M., Shedden, M., Brandt, C., Volk, T. & Richard, T., Jan 1 2019, In: Biofuels, Bioproducts and Biorefining. 13, 1, p. 74-85 12 p.Research output: Contribution to journal › Article › peer-review
Corn stover harvest N and energy budgets in central Iowa
Malone, R. W., Herbstritt, S., Ma, L., Richard, T. L., Cibin, R., Gassman, P. W., Zhang, H. H., Karlen, D. L., Hatfield, J. L., Obrycki, J. F., Helmers, M. J., Jaynes, D. B., Kaspar, T. C., Parkin, T. B. & Fang, Q. X., May 1 2019, In: Science of the Total Environment. 663, p. 776-792 17 p.Research output: Contribution to journal › Article › peer-review
Effect of pH and temperature on microbial community structure and carboxylic acid yield during the acidogenic digestion of duckweed 09 Engineering 0907 Environmental Engineering 06 Biological Sciences 0605 Microbiology 09 Engineering 0904 Chemical Engineering
Calicioglu, O., Shreve, M. J., Richard, T. L. & Brennan, R. A., Oct 8 2018, In: Biotechnology for Biofuels. 11, 1, 275.Research output: Contribution to journal › Article › peer-review
Enhancing carboxylic acid yields from duckweed by acidogenic digestion
Calicioglu, O., Shreve, M. J., Urban, N. L., Richard, T. L. & Brennan, R. A., May 2018, In: European Biomass Conference and Exhibition Proceedings. 2018, 26thEUBCE, p. 953-956 4 p.Research output: Contribution to journal › Article › peer-review
Bridging biofuel sustainability indicators and ecosystem services through stakeholder engagement
Dale, V. H., Kline, K. L., Richard, T. L., Karlen, D. L. & Belden, W. W., Jul 2018, In: Biomass and Bioenergy. 114, p. 143-156 14 p.Research output: Contribution to journal › Article › peer-review