Preprints
Samantha P. Bunke, Kindle S. Williams, William A. Tarpeh. Electrochemically mediated alkaline hydrolysis and methanolysis of poly(ethylene terephthalate) (PET). ChemRxiv. 2024.
Keywords: Chemical Recycling, PET, pethanolysis, hydrolysis, electrolyte effects, sustainable plastic economy
Michael L. Machala, Xi Chen, Samantha P. Bunke, Gregory Forbes, Akarys Yegizbay, Jacques de Chalendar, InΓͺs L. Azevedo, Sally Benson, William A. Tarpeh. Life cycle comparison of industrial-scale lithium-ion battery recycling and mining supply chains. ChemRxiv. 2023.
Keywords: Circular economy, critical materials, hydrometallurgy, life cycle assessment, pyrometallurgy, reductive calcination
2024
Edward Apraku, McKenna Farmer, Chayse Lavallais, Danna A. Soriano, Justin Notestein, Keith Tyo, Jennifer Dunn, William A. Tarpeh, George F. Wells. Toward a circular nitrogen bioeconomy: integrating nitrogen bioconcentration, separations, and high-value products for nitrogen recovery. Current Opinion in Biotechnology. 2024.
Jinyu Guo, Matthew J. Liu, Chloe Laguna, Dean M. Miller, Kindle S. Williams, Brandon D. Clark, Carolina MuΓ±oz, Sarah J. Blair, Adam C. Nielander, Thomas F. Jaramillo, William A. Tarpeh. Electrodialysis and nitrate reduction (EDNR) to enable distributed ammonia manufacturing from wastewaters. Energy & Environmental Science. 2024.
Keywords: Nitrate reduction, reaction engineering, reactive separation, sustainable ammonia production, wastewater refining
Kristen Abels, Amilton Barbosa Botelho Junior, Xi Chen, William A. Tarpeh. Ligand content and driving force effects on ion-ion permselectivity in ligand-functionalized membranes. Journal of Membrane Science. 2024.
Keywords: Electrodialysis, ion-ligand affinity, lithium separation, partitioning, selective transport
Lorelay Mendoza Grijalva, Alsane Seck, Laura Roldan-Hernandez, Katherine E. Graham, Alexandria B. Boehm, William A. Tarpeh. Persistence of respiratory, enteric, and fecal indicator viruses in fecal sludge from on-site sanitation in Dakar, Senegal. Journal of Water, Sanitation and Hygiene for Development. 2024.
Keywords: Environmental surveillance, fecal sludge treatment plant, virus RNA decay, wastewater-based epidemiology
Edward Apraku, Chloe M. Laguna, Robert M. Wood, Neha Sharma, Hang Dong, William A. Tarpeh. Enhancing Resource Recovery through Electro-Assisted Regeneration of an Ammonia-Selective Cation Exchange Resin. ACS ES&T Water. 2024.
Keywords: Adsorbent stability, ammonia selectivity, circular economy, electrochemical water splitting, nutrient recovery, water electrolysis
Anna Kogler, Meili Gong, Kindle S. Williams, William A. Tarpeh. Flexible Electrochemical Stripping for Wastewater Ammonia Recovery with On-Demand Product Tunability. Environmental Science & Technology Letters. 2024.
Keywords: Circular economy, electrodialysis, membrane distillation, nitrogen, product diversification, resource recovery, urine
Elizabeth R. Corson, Jinyu Guo, William A. Tarpeh. ATRβSEIRAS Method to Measure Interfacial pH during Electrocatalytic Nitrate Reduction on Cu. Journal of The Electrochemical Society. 2024.
Keywords: Interfacial pH, local pH, ATR-SEIRAS, nitrate reduction
Dean Miller, Matthew Liu, Kristen Abels, Anna Kogler, William A. Tarpeh. Engineering a molecular electrocatalytic system for energy-efficient ammonia production from wastewater nitrate. Energy & Environmental Science. 2024.
Keywords: Nitrate reduction, electrocatalysis, homogenous catalysis, reactive separation
Brandon Clark, Neha Sharma, Edward Apraku, Hang Dong, William A. Tarpeh. Ligand Exchange Adsorbents for Selective Phosphate and Total Ammonia Nitrogen Recovery from Wastewaters. Accounts of Materials Research. 2024
Keywords: Adsorption, ammonia, cations, organic polymers, phosphates
Xiaohan Shao, Yixuan Huang, Robert M. Wood, William A. Tarpeh. Electrochemical sulfate production from sulfide-containing wastewaters and integration with electrochemical nitrogen recovery Journal of Hazardous Materials. 2024
Keywords: Ammonia, circular economy, electrochemical oxidation, electrochemical stripping, nutrient recovery, wastewater treatment
Anna Kogler, Neha Sharma, Diana Tiburcio, Meili Gong, Dean Miller, Kindle Williams, Xi Chen, William A. Tarpeh. Long-term Robustness and Failure Mechanisms of Electrochemical Stripping for Wastewater Ammonia Recovery. ACS Environ. Au 2024.
Keywords: Nutrient recovery, circular economy, ammonia, urine treatment, wastewater treatment, waste valorization
2023
McKenna Farmer, Rashmi Rajasabhai, William Tarpeh, Keith Tyo, George Wells. Meta-omic profiling reveals ubiquity of genes encoding for the nitrogen-rich biopolymer cyanophycin in activated sludge microbiomes. Front. Microbiol. 2023.
Keywords: nitrogen recovery, microbial ecology, cyanophycin, activated sludge, phosphorus accumulating organisms
Lars Ostervold, Adam Smerigan, Matthew J. Liu, Leah R. Filardi, Fernando D. Vila, Jorge E. Perez-Aguilar, Jiyun Hong, William A. Tarpeh, Adam S. Hoffman, Lauren F. Greenlee, Ezra Lee Clark, Michael J. Janik, and Simon R. Bare. Cation Incorporation into Copper Oxide Lattice at Highly Oxidizing Potentials. ACS Appl. Matter. Interfaces. 2023.
Keywords: X-ray absorption, spectroscopy, copper, electrocatalysis, cations, XANES, EXAFS, cation incorporation, electrochemistry
Dean Miller, Kristen Abels, Jinyu Guo, Kindle Williams, Matthew Liu, William A. Tarpeh. Electrochemical wastewater refining: a vision for circular chemical manufacturing. JACS. 2023.
Keywords: Electrochemistry, reactive separations, wastewater, resource recovery, reaction microenvironment
Heng Dong, Xiaohan Shao, Shane Hancox, Sean McBeath, William A. Tarpeh, Michael Hoffman. Understanding the Catalytic Active Sites of Crystalline CoSbxOy for Electrochemical Chlorine Evolution. ACS Appl. Matter. Interfaces. 2023.
Keywords: Electrochemical oxidation, electrolysis, scanning electron microscopy, water treatment
Matthew J. Liu and William A. Tarpeh. Reports from the Frontier: Electrifying Chemical Transformations and Separations to Valorize Wastewater Nitrogen. The Electrochemical Society. 2023.
Valerie A. Niemann, Marten Huck, Hans-Georg SteinrΓΌck, Michael F. Toney, William A. Tarpeh, and Sharon E. Bone. X-ray Absorption Spectroscopy Reveals Mechanisms of Calcium and Silicon Fouling on Reverse Osmosis Membranes Used in Wastewater Reclamation. ACS ES&T Water. 2023.
Keywords: membrane fouling, calcium organic complexes, silica ΞΌ-XRF, ΞΌ-XANES
Jinyu Guo, Paige Brimley, Matthew Liu, Elizabeth Corson, Carolina MuΓ±oz, Wilson A. Smith, William A. Tarpeh. Mass Transport Modifies the Interfacial Electrolyte to Influence Electrochemical Nitrate Reduction. ACS Sustainable Chem. Eng. 2023.
Keywords: diffusion-migration-reaction model, electrolyte effects, infrared absorption spectroscopy, reaction microenvironment, reactive nitrogen, sustainable ammonia manufacturing
Matthew J. Liu, Dean M. Miller, and William A. Tarpeh. Reactive Separation of Ammonia from Wastewater Nitrate via Molecular Electrocatalysis. ES&T Letters. 2023.
Keywords: ammonia synthesis, electrochemical engineering, electrochemical nitrate reduction, reactive nitrogen, resource recovery
V. A. Niemann, P. Benedek, J. Guo, Y. Xu, S. J. Blair, E. R. Corson, A. C. Nielander, T. F. Jaramillo, and W. A. Tarpeh. Co-designing Electrocatalytic Systems with Separations To Improve the Sustainability of Reactive Nitrogen Management. ACS Catal. 2023.
Keywords: Electrocatalysis, Impurities, Nitrogen, Redox reactions, Selectivity
William A. Tarpeh, Yan Du, Corey M. G. Carpenter, Enrique E. Rodriguez, Damian E. Helbling, Diana S. Aga, Nancy G. Love, and Krista R. Wigginton. A Unit Process Approach to Nontarget Screening of Organic Contaminants during Urine Treatment. ACS EST Eng. 2023.
Keywords: fertilizer production, mass spectrometry, nutrient recovery, pharmaceuticals, resource recovery
2022
Tarpeh, W.A., Clark, B.D., Nelson, K.L., Orner, K.D. (2023). Reimagining Excreta as a Resource: Recovering Nitrogen from Urine in Nairobi, Kenya. In: Madon, T., Gadgil, A.J., Anderson, R., Casaburi, L., Lee, K., Rezaee, A. (eds) Introduction to Development Engineering. Springer, Cham. https://doi.org/10.1007/978-3-030-86065-3_16
Hang Dong, Chloe Marie Laguna, Matthew J. Liu, Jinyu Guo, and William A. Tarpeh. Electrified Ion Exchange Enabled by Water Dissociation in Bipolar Membranes for Nitrogen Recovery from Source-Separated Urine, Environmental Science & Technology (2022)
Keywords: ion exchange regeneration, membrane stripping, resin conductivity, resin regenerability, water splitting, weak acid cation exchangers
Chungheon Shin, Aleksandra Szczuka, Matthew J. Liu, Lorelay Mendoza, Renjing Jiang, Sebastien H. Tilmans, William A. Tarpeh, William A. Mitch, and Craig S. Criddle. Recovery of Clean Water and Ammonia from Domestic Wastewater: Impacts on Embodied Energy and Greenhouse Gas Emissions, Environmental Science & Technology (2022).
Keywords: Domestic wastewater, resource recovery, embodied energy, greenhouse gas emissions, supply chains, water reuse, ammonia recovery
Matthew J. Liu, Jinyu Guo, Adam S. Hoffman, Joakim Halldin Stenlid, Michael T. Tang, Elizabeth R. Corson, Kevin H. Stone, Frank Abild-Pedersen, Simon R. Bare, William A. Tarpeh. Catalytic Performance and Near-Surface Xβray Characterization of Titanium Hydride Electrodes for the Electrochemical Nitrate Reduction Reaction, Journal of the American Chemical Society (2022).
Keywords: Electrochemical nitrate reduction; Electrocatalysis; X-ray diffraction; X-ray absorption spectroscopy; Density functional theory.