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Dr. Stephanie Lansing



Environmental Science & Technology 1429 Animal Science/Agricultural Engineering Building College Park, Maryland 20742


Dr. Lansing leads the Bioenergy and Bioprocessing Technology Lab at the nexus of renewable energy, water quality, waste treatment, and human health, and is committed to understanding the ecological, engineering, and social systems that influence these intertwined areas.

Research Areas

Food/MSW Waste

Dr. Lansing is leading two new grants totaling $6 million from the U.S. Department of Energy (DOE) to develop sustainable products like biofuels and bioplastics from food waste. These grants are aimed at understanding the waste sources we have, particularly the quantities of food waste, and determining what opportunities exist for us to create renewable resources and energy from that waste–One grant is focused on the production of bioplastics from food waste, while the other is focused on characterizing the municipal solid waste stream to create biofuels that can replace liquid fuels like gasoline.


Anaerobic Digestion

Anaerobic digestion is a series of sequential microbial processes to transform organic material into biogas, which can be used as a renewable energy source to produce electricity, fuel, or heat. Anaerobic digestion reduces CO2 emissions, while providing renewable energy and a high- quality fertilizer. We incorporated innovations into the digestion process, propelling this field.

Topics include:

  • Bioenergy and waste treatment using ecological engineering
  • Waste to Energy Research: Anaerobic digestion, microbial fuel cells, gasification, and solid-oxide fuel cells
  • Small-scale digesters for the US and developing countries
  • High temperature and high pressure anaerobic digestion
  • Effects of nanoparticles on anaerobic digestion and post-digestion utilization
  • Energy (eMergy) and life cycle assessments (LCA)


Read "In Haiti, (more than) a win-win toilet solution"

Food Energy Water Nexus

Food, water, and energy systems are intimately connected. Water and nutrients are needed to grow crops and feed animals. Agricultural runoff can degrade water quality and increase eutrophication, while energy is integral to both agricultural production and water treatment. The connection between these systems is known as the Food-Energy-Water (FEW) Nexus.

Topics include:

  • Recovering nutrients from waste using post-nutrient extraction after anaerobic digestion
  • Nutrient recovery from Chesapeake Bay using algal turf scrubber (ATS) with anaerobic digestion of algae feedstocks to drive a fuel cell at the Port of Baltimore
  • Food waste, dairy and poultry manure digestion in Maryland, as well as sanitary waste digestion in Haiti

Watch VOA News coverage on Algal Turf Scrubbers

Read about FEW Nexus Research featured on the Big Ten Network.

Antimicrobial Resistance

Antimicrobial resistance is of increasing concern, with antibiotics use in agriculture and public health settings leading to an increase in bacterial resistance in the environment.

Topics Include:

  • Antimicrobial resistance, persistence and treatment in dairy and beef manure waste management processing and the wastewater industry



Find the full list of publications on Google Scholar.


  1. Oliver, J., Gooch, C*., Lansing, S., Schueler, J., Hurst, J., Sassoubre, L., Crossette, E., Aga, D., 2020. Invited Review: Fate of antibiotic residues, antibiotic-resistant bacteria, and antibiotic resistance genes in US dairy manure management systems. Journal of Dairy Science 103:1051-1071. doi: 10.3168/jds.2019-16778.
  2. Achi, C.G., Hassanein, A., Lansing, S*., 2020. Enhanced biogas production of cassava wastewater using zeolite and biochar additives and manure co-digestion. Energies 13(2), 491. doi: 10.3390/en13020491.
  3. Hassanein, A., Lansing, S*., Tikekar, R., 2019. Impact of metal nanoparticles on biogas production from poultry litter. Bioresource Technology 275: 200-206. doi: 10.1016/j.biortech.2018.12.048. 
  4. Hurst, J.J., Oliver, J., Schueler, J., Gooch, C.A., Lansing, S., Crossette, E., Wiggington, K.R., Raskin, L., Aga, D.S*., Sassoubre, L.M., 2019. Trends in antimicrobial resistance genes in manure blend pits and long-term storage across dairy farms with comparisons to antimicrobial usage and residual concentrations. Environmental Science & Technology 53(5): 2405-2415. doi: 10.1021/acs.est.8b05702. 
  5. Lansing, S*., Hülsemann, B., Choudhury, A., Schueler, J., Lisboa, M.S., Oechsner, H., 2019. Food waste co-digestion in Germany and the United States: From lab to full-scale systems. Resources, Conservation & Recycling 148: 104-113. doi: 10.1016/j.resconrec.2019.05.014. 
  6. Yarberry, A., Lansing, S*., Luckarift, H., Dlitz, R., Mulbry, W., Yarwood, S., 2019. Effect of anaerobic digestion inoculum preservation via lyophilization on methane recovery. Waste Management 87: 62-70. doi: 10.1016/j.wasman.2019.01.03. 
  7. Choudhury, A., Lansing, S*., 2019. Methane and hydrogen sulfide production from co-digestion of gummy waste with a food waste, grease waste, and dairy manure mixture. Energies 12 (23), 4464. doi: 10.3390/en12234464.
  8. Shelford, T.J., Gooch, C.A., Lansing, S., 2019. Performance and economic results for two full-scale biotrickling filters to remove H2S from dairy anaerobic digestion biogas. Applied Engineering in Agriculture 35(3): 283-291. doi: 10.13031/aea.12939. 
  9. Choudhury, A., Shelford, T., Felton, G., Gooch, C., Lansing, S*., 2019. Evaluation of hydrogen sulfide scrubbing systems for anaerobic digesters on two dairy farms. Energies 12 (24), 4605. doi:10.3390/en12244605. 
  10. Oliver, J.P., Schueler, J.E., Gooch, C.A., Lansing, S., Aga, D*., 2018. Performance quantification of manure management systems at 11 Northeastern US dairy farms. Applied Engineering in Agriculture 34(6): 973-1000. doi: 10.13031/aea.12863.
  11. Arikan, O*., Mulbry, W., Rice, C., Lansing, S., 2018. The fate and effect of monensin during anaerobic digestion of dairy manure under mesophilic conditions. PLoS One 13(2): e0192080. doi: 10.1371/journal.pone.0192080. 
  12. Arikan, O*., Mulbry, W., Rice, C., Lansing, S., 2018. Anaerobic digestion reduces veterinary ionophore lasalocid in dairy manure. Desalination and Water Treatment. Desalination and Water Treatment 108: 183-188. doi: 10.5004/dwt.2018.22040.
  13. Hassanein, A., Witarsa, F., Guo, X., Yong, L., Lansing, S., Qiu, L*., 2017. Next generation digestion: Complementing anaerobic digestion (AD) with a novel microbial electrolysis cell (MEC) design. Intl. J. Hydrogen Energy 42: 28681-28689. doi: 10.1016/j.ijhydene.2017.10.003. 
  14. Lansing, S*., Maile-Moskowitz, A., Eaton, A., 2017. Waste treatment and energy production from small-scale wastewater digesters. Bioresource Technology 245(A): 801-809. doi: 10.1016/j.biortech.2017.08.215.
  15. Mulbry, W*., Lansing, S., Selmer, K., 2017. Effect of liquid surface area on hydrogen sulfide oxidation during micro-aeration in dairy manure digesters. PLoS One 12(10): e0185738. doi: 10.1371/journal.pone.0185738. 
  16. Lansing, S*., Bowen, H., Gregoire, K., Klavon, K., Moss, A., Eaton, A., Lai, Y., Iwata, K., 2016. Methane production for sanitation improvement in Haiti. Biomass and Bioenergy 91: 288-295. doi: 10.1016/j.biombioe.2016.05.032. 
  17. Witarsa, F., Lansing, S*., Yarwood, S, Mateu, M.G., 2016. Incubation of innovative methanogenic communities to seed anaerobic digesters. Applied Microbiology and Biotechnology 100(22): 9795-9806. doi: 10.1007/s00253-016-7875-z. 
  18. Belle, A, Lansing, S*., Mulbry, W., Weil, R.R., 2015. Anaerobic co-digestion of forage radish and dairy manure in complete mix digesters. Bioresource Technology 178: 230-237. doi: 10.1016/j.biortech.2014.09.036. 
  19. Arikan, O*., Mulbry, W., Lansing, S., 2015. Effect of temperature on methane production from field-scale anaerobic digesters treating dairy manure. Waste Management 43: 108-113. doi: 10.1016/j.wasman.2015.06.005.
  20. Belle, A., Lansing, S*., Mulbry. W., Weil, R.R., 2015. Methane and hydrogen sulfide dynamics co-digesting forage radish and dairy manure. Biomass and Bioenergy 80: 44-51. doi: 10.1016/j.biortech.2014.09.036. 
  21. Witarsa, F., Lansing, S*., 2015. Quantifying methane production from psychrophilic anaerobic digestion of separated and unseparated dairy manure. Ecological Engineering 78: 95-100. doi: 10.1016/j.ecoleng.2014.05.031. 
  22. Lansing, S*., Klavon, K., Mulbry, W., Moss, A., 2015. Design and validation of field-scale anaerobic digesters treating dairy manure for small farms. Transactions of the ASABE 58(2): 441-449. Doi: 10.13031/trans.58.11079. 
  23. Lisboa, M.S., Lansing, S*., 2014. Evaluating the toxicity of food processing wastes as co- digestion substrates with dairy manure. Waste Management 34(7): 1299-1305. doi: 10.1016/j.wasman.2014.03.005.
  24. Moss, A., Lansing, S*., Tilley, D., Strass, K., 2014. Assessing the sustainability of small-scale anaerobic digestion with the introduction of the emergy efficiency index (EEI) and adjusted yield ratio (AYR). Ecological Engineering 64: 391-407. Doi: 10.1016/j.ecoleng.2013.12.008.
  25. Saer, A., Lansing, S*., Davitt, N., Graves, R., 2013. Life cycle assessment of a food waste composting system: Environmental impact hotspot. Journal of Cleaner Production 52(1): 234-244. doi: 10.1016/j.jclepro.2013.03.022. 
  26. Klavon, K., Lansing, S*., Moss, A., Mulbry, W., Felton, G., 2013. Economic analysis of small-scale agricultural digesters in the United States. Biomass and Bioenergy 54: 36-45. doi: 10.1016/j.biombioe.2013.03.009. 
  27. Lisboa, M.S., Lansing, S*., 2013. Characterizing food waste substrates for co-digestion through biochemical methane potential (BMP) experiments. Waste Management 33(12):2664-2669. doi: 10.1016/j.wasman.2013.09.004. 
  28. Ceccarelli, D., Spagnoletti, M., Hasan, N.A., Lansing, S., Huq, A., Colwell, R.R*., 2013. Anew integrative conjugative element detected in Haitian isolates of Vibrio cholerae non-O1/non-O139. Research in Microbiology 164(9): 891-893. doi: 10.1016/j.resmic.2013.08.004. 
  29. Ciotola, R., Lansing, S., Martin, J*., 2011. Emergy analysis of biogas production and electricity generation from small-scale agricultural digesters. Ecological Engineering 37:1681-1691. doi: 10.1016/j.ecoleng.2011.06.031. 
  30. Lansing, S*., Martin, J.F., Botero, R.B., Nogueira da Silva, T., Dias da Silva, E., 2010. Methane production in low-cost, co-digestion systems treating manure and used cooking grease. Bioresource Technology 101: 4362-4370. doi: 10.1016/j.biortech.2010.01.100.
  31. Lansing, S*., Martin, J., Botero, R., Nogueira da Silva, T., Dias da Silva, E., 2010. Wastewater transformations and fertilizer value when co-digesting differing ratios of swine manure and used cooking grease in low-cost digesters. Biomass and Bioenergy 34:1711-1720. doi: 10.1016/j.biombioe.2010.07.005. 
  32. Lansing, S* ., Botero, R., Martin, J., 2008. Waste treatment and biogas quality in small-scale agricultural digesters. Bioresource Technology 99: 5881-5890. doi: 10.1016/j.biortech.2007.09.090. 
  33. Lansing, S*., Viquez, J., Martínez, H., Botero, R., Martin, J., 2008. Quantifying electricity generation and waste transformations in a low-cost, plug-flow anaerobic digestion system. Ecological Engineering 34: 332-348. doi: 10.1016/j.ecoleng.2008.09.002.
  34. Lansing, S*., Martin, J., 2006. Use of an ecological treatment system (ETS) for removal of nutrients from dairy wastewater. Ecological Engineering 28: 235-245. doi: 10.1016/j.ecoleng.2006.04.006. 
  35. Martin, J.F*., Lansing S.L., Mitsch, W.J., 2006. The growth of ecological engineering: The fifth annual conference of the American Ecological Engineering Society. Ecological Engineering 28: 183-186. doi: 10.1016/j.ecoleng.2006.09.006. 



Renewable Energy

ENST 415/ENST 615/MEES 615 (3 credits)

An overview of renewable energy technologies, their current applications and design criteria. Emphasis is placed on bioenergy (anaerobic digestion, biodiesel, and ethanol) solar, and wind energy. Fall Semester. See syllabus for more details.

Ecological Design

ENST 481/ENST 681 (3 credits)

This is an advanced survey course on the field of ecological design and engineering. Principles of ecological engineering are applied through design of biologically-based waste treatment systems. Spring Semester. See ENST481 syllabus for more details. Or ENST681 syllabus here.

UMD Global STEWARDS Project-Based Data Practicum at the Nexus of Food, Energy, and Water Systems (FEWS)


A data analysis course for the NSF-funded Global STEWARDS. See syllabus for more details.

Antimicrobial Resistance from a One Health Perspective

ENST 689K (1 credit)

This seminar is co-taught via Zoom with six participating institutions (UMD, University of Nebraska, University of Minnesota, Oklahoma State University, North Carolina State University, Washington State University) with guest lectures in-person or via Zoom from experts in AMR throughout the world.

The Bioenergy and Bioprocessing Technology Lab Team


Dr. Stephanie Lansing                    

Principal Investigator


Dr. Amro Hassanein

Assistant Research Scientist

Lab Manager




Dr. Amro Hassanein's experience includes anaerobic digestion,

microbial fuel cell, microbial electrolysis cell, coagulation, nutrient capture,

modeling, bioenergy, life cycle assessments, pyrolysis, and nanotechnology.


Postdoctoral associates

Naresh Signature (2).jpg

Dr. Naresh Kumar Amradi,     

Postdoctoral Research Associate 


0512A An.Sci./Ag. Eng. Bldg.142

College Park, MD 20742


Mobile: +1-240-726-2280



Graduate Students


Danielle Delp     

Algal Digestion and Watershed Management 



Danielle is a doctoral student researching anaerobic digestion of algae in

the department of environmental science and technology department. Her interests

lie in the application of algal biotechnology for use in bioremediation and

bioenergy production. She currently works with algal turf scrubber systems to grow

algae on water drawn from tributaries of the Chesapeake Bay to produce a feedstock

for methane production via anaerobic digestion. This combined technology presents a

potential method for carbon-neutral bioenergy production while providing continuous

remediation to impacted waterways.               

Carlton Poindexter

Antimicrobial Resistance and Manure Treatment



Carlton Poindexter is an NSF-NRT doctoral student in the department of environmental

science and technology at the University of Maryland . His research is focused on

environmental antimicrobial resistance and the effectiveness of anaerobic digestion and

other waste/ wastewater treatment technology. This research seeks to determine ecological

mechanisms involved in the occurrence and transmission of antibiotic resistant genes and

antibiotic resistant bacteria.

Usoshi Chatterjee

Waste Conversion and Systems Engineering 



Usoshi is a doctoral student in the department of Environmental Science and Technology

at University of Maryland. She has a Master's and BS from Ohio State University in Food

and Biological Engineering and is interested in learning various ways to incorporate

sustainable systems. Her doctoral research focuses on conversion of waste into soil

amendments for plants and potential use of carbon sequestration and pollution abatement,

as well as analyzing the life cycle of a system. This proposed research is to develop innovative

bioenergy/processing technologies to increase agricultural productivity.



Kirk Mahoney

Anaerobic Digestion and Microbial Electrolysis Cells (MECs)



Undergraduate Researchers

Derrick Sanders

Nanotechnology and Microbial Electrolysis Cells


Olivia Robinson

Municipal Waste to Energy Analysis and Waste Conversion Systems Engineering


Emily McCoy

Efficiency of Co-digestion of Dairy Manure, Poultry and Food Wastes


Briana Mercado

Nutrient Transformations and Biogas Production from Anaerobic Digestion


Dahlia Adres

Nutrient Transformations and Biogas Production from Anaerobic Digestion



High School Interns


Mandy Zhang

Volatile Fatty Acid Production from Dark Fermentation


Previous Team Members


Current Position

Jenna Schueler, MS

Water Quality Research Assistant, Chesapeake Bay Foundation 

Andrew Moss, MS

Technical Director, Plant Found Energy Development, LLC

Katherine Klavon, MS

Senior Water Resources Engineer, WSP:  Colorado Springs

Abhinav Choudhury, PhD

Environmental Research Engineer, Freshwater Institute, The Conservation Fund

Freddy Witarsa, PhD

Assistant Professor, Colorado Mesa University

Ashley Belle, PhD

Extension Educator, University of Illinois Extension

Andrea Yarberry, PhD

Organic Chemical Metrology Group, NIST

Emily Keller 
Ahmed Abdellah

University of Pennsylvania Undergraduate Student