Publications

Journal Articles

  1.  Gao, H., LaVergne, J.M., Carpenter, C. M. G., Desai, R., Zhang, X., Gray, K., Helbling, D. E., & Wells, G. F. “Exploring co-occurrence patterns between organic micropollutants and bacterial community structure in a mixed-use watershed.Environmental Science: Processes & Impacts (2019).
  2. Wu, L., Ning, D., Zhang, B., Li, Y., Zhang, P., Shan, X., Zhang, Q., Brown, M., Li, Z., Van Nostrand, J. D., Ling, F., Xiao, N., Vierheilig, J., Wells, G. F., Yang, Y., Deng, Y., Tu, Q., Wang, A., Global Water Microbiome Consortium, Zhang, T., He, Z., Keller, J., Nielsen, P., Alvarez, P. J. J., Criddle, C. S., Wagner, M., Tiedje, J. M., He, Q., Curtis, T. P., Stahl, D. A., Alvarez-Cohen, L., Rittmann, B. E., Wen, X., & Zhou, J. “Global Diversity and Biogeography of Bacterial Communities in Wastewater Treatment Plants.” Nature Microbiology (2019).
  3. Roots, P., Wang, Y., Rosenthal, A., Griffin, J., Sabba, F., Petrovich, M., Yang, F., Kozak, J., Zhang, H., & Wells, G. F. “Comammox Nitrospira are the dominant ammonia oxidizers in a mainstream low dissolved oxygen nitrification reactor.Water Research (2019).
  4. Wells, G. F. & Frigon, D. “Microbial immigration in wastewater treatment systems: analytical considerations and process implications.Current Opinions in Biotechnology (In Press).
  5. Park, J.-H., Kim, D.-H., Kim, H.-S., Wells, G. F., & Park, H.-D “Granular activated carbon supplementation alters the metabolic flux of Clostridium butyricum for enhanced biohydrogen production.Bioresource Technology (2019).
  6. Gao, H., Mao, Y. Zhao, X., Liu, W.-T., Zhang, T., & Wells, G. F. “Genome-centric metagenomics resolves microbial diversity and prevalent truncated denitrification pathways in a denitrifying PAO-enriched bioprocess. Water Research (2019).
  7. Cai, M., Wang, Q., Wells, G. F., Lian, G., Song, Z., Jin, M., Hu, J., & Wei, Z. “Improving dewaterability and filterability of activated sludge by three-dimensional electrochemical fenton treatment.Chemical Engineering Journal (2019).
  8. Laureni, M., Weissbrodt, D. G., Villez, K., Robin, O., de Jonge, N., Rosenthal, A., Wells, G. F., Nielsen, J. L., Morgenroth, E., & Joss, A. “Biomass segregation between biofilm and flocs improves the control of nitrite oxidizing bacteria in mainstream partial nitritation and anammox.Water Research (2019).
  9. Liou, H.-C., Sabba, F., Packman, A., Wells, G. F., & Balogun, O. “Nondestructive characterization of soft materials and biofilms by measurement of guided elastic wave propagation using optical coherence elastography.Soft Matter (2019).
  10. Petrovich, M., Rosenthal, A., Griffin, J., & Wells, G. F. “Spatially resolved abundances of antibiotic resistance genes and intI1 in wastewater treatment biofilms.Biotechnology & Bioengineering. (2018).
  11. Sabba, F., Terada, A., Wells, G. F., Smets, B., & Nerenberg, R. “Nitrous oxide emissions from biofilm processes.” Applied Microbiology and Biotechnology (2018).
  12. Rosenthal, A., Griffin, J., Wagner, M., Packman, A., Balogun, O., and Wells, G. F. “Morphological analysis of pore size and connectivity in a thick mixed-culture biofilm.” Biotechnology & Bioengineering (2018).
  13. Griffin, J., Taw, E., Gosavi, A., Thornburg, N., Pramanda, I., Lee, H.-S., Gray, K., Notestein, J., & Wells, G. F. “A hybrid approach for selective sulfoxidation via bioelectrochemically derived hydrogen peroxide over a niobium(V)-silica catalyst.” ACS Sustainable Chemistry & Engineering (2018).
  14. Cai, M., Hu, J.-Q., Wells, G. F., Seo, Y., Spinney, R., Ho, S.-H., Dionysiou, D., Su, J. Xiao, R., & Wei, Z. “Understanding mechanisms of synergy between acidification and ultrasound treatments for activated sludge dewatering: from bench to pilot-scale investigation.” Environmental Science & Technology (2018).
  15. Petrovich, M., Chu, B., Wright, D., Griffin, J., Elfeki, M., Murphy, B., Poretsky, R., & Wells, G. F. “Antibiotic resistance genes show enhanced mobilization through suspended growth and biofilm-based wastewater treatment processes.FEMS Microbiology Ecology (2018).
  16. Chu, Binh TT, Morgan L. Petrovich, Adit Chaudhary, Dorothy Wright, Brian Murphy, George Wells, and Rachel Poretsky. “Metagenomic analysis reveals the impact of wastewater treatment plants on the dispersal of microorganisms and genes in aquatic sediments.” Applied and Environmental Microbiology (2017).
  17. Feng, Jie, Bing Li, Xiaotao Jiang, Ying Yang, George F. Wells, Tong Zhang, and Xiaoyan Li. “Antibiotic resistome in a large‐scale healthy human gut microbiota deciphered by metagenomic and network analyses.” Environmental Microbiology (2017).
  18. Griffin, James S., Nanxi Lu, Naseer Sangwan, Angang Li, Melissa Dsouza, Andrew J. Stumpf, Tiffany Sevilla et al. “Microbial diversity in an intensively managed landscape is structured by landscape connectivity.” FEMS Microbiology Ecology (2017).
  19. Fumasoli, Alexandra, Helmut Buergmann, David G. Weissbrodt, George F. Wells, Karin Beck, Joachim Mohn, Eberhard Morgenroth, and Kai M. Udert. “Growth of Nitrosococcus-related ammonia oxidizing bacteria coincides with extremely low pH values in high strength nitrogen wastewater.” Environmental Science & Technology (2017).
  20. Petrovich, Morgan, Chia-Yun Wu, Alex Rosenthal, Kuan-Fu Chen, Aaron I. Packman, and George F. Wells. “Nitrosomonas europaea biofilm formation is enhanced by Pseudomonas aeruginosa.” Fems Microbiology Ecology (2017).
  21. Wells, George F., Yongjiang Shi, Michele Laureni, A. Rosenthal, Ilona Szivák, D. G. Weissbrodt, Adriano Joss, H. Buergmann, D. R. Johnson, and Eberhard Morgenroth. “Comparing the resistance, resilience, and stability of replicate moving bed biofilm and suspended growth combined nitritation–anammox reactors.” Environmental Science & Technology (2017).
  22. Gao, Han, Miaomiao Liu, James S. Griffin, Longcheng Xu, Da Xiang, Yaniv D. Scherson, Wen-Tso Liu, and George F. Wells. “Complete Nutrient Removal Coupled to Nitrous Oxide Production as a Bioenergy Source by Denitrifying Polyphosphate-Accumulating Organisms.” Environmental Science & Technology (2017).
  23. Griffin, James S., and George F. Wells. “Regional synchrony in full-scale activated sludge bioreactors due to deterministic microbial community assembly.” The ISME journal (2017).
  24. Shi, Yijing, George Wells, and Eberhard Morgenroth. “Microbial activity balance in size fractionated suspended growth biomass from full-scale sidestream combined nitritation-anammox reactors.” Bioresource Technology (2016).
  25. Vannecke, Thomas PW, George Wells, Nathalie Hubaux, Eberhard Morgenroth, and Eveline IP Volcke. “Considering microbial and aggregate heterogeneity in biofilm reactor models: how far do we need to go?.” Water Science and Technology (2015).
  26. Hubaux, N., G. Wells, and E. Morgenroth. “Impact of coexistence of flocs and biofilm on performance of combined nitritation-anammox granular sludge reactors.” Water Research (2015).
  27. Wells, George F., Cindy H. Wu, Yvette M. Piceno, Brad Eggleston, Eoin L. Brodie, Todd Z. DeSantis, Gary L. Andersen, Terry C. Hazen, Christopher A. Francis, and Craig S. Criddle.”Microbial biogeography across a full-scale wastewater treatment plant transect: evidence for immigration between coupled processes.” Applied Microbiology and Biotechnology. (2014)
  28. Han Gao, Yaniv D. Scherson, and George F. Wells.”Towards energy neutral wastewater treatment: methodology and state of the art.” Environmental Science: Processes & Impacts. (2014)
  29. Kim, Taek-Seung, Ju-Yong Jeong, George F. Wells, and Hee-Deung Park. “General and rare bacterial taxa demonstrating different temporal dynamic patterns in an activated sludge bioreactor.” Applied Microbiology and Biotechnology. (2013)
  30. Scherson, Yaniv D., George F. Wells, Sung-Geun Woo, Jangho Lee, Joonhong Park, Brian J. Cantwell, and Craig S. Criddle. “Nitrogen removal with energy recovery through N 2 O decomposition.” Energy & Environmental Science. (2013)
  31. Schreiber, Frank, Pascal Wunderlin, Kai M. Udert, and George F. Wells. “Nitric oxide and nitrous oxide turnover in natural and engineered microbial communities: biological pathways, chemical reactions, and novel technologies.” Frontiers in Microbiology. (2012)
  32. Biller, Steven J., Annika C. Mosier, George F. Wells, and Christopher A. Francis. Global biodiversity of aquatic ammonia-oxidizing archaea is partitioned by habitat. Frontiers in Microbiology. (2012)
  33. Wells, George F., Hee-Deung Park, Brad Eggleston, Christopher A. Francis, and Craig S. Criddle. “ Fine-scale bacterial community dynamics and the taxa–time relationship within a full-scale activated sludge bioreactor.” Water Research. (2011)
  34. Ofiţeru, Irina Dana, Mary Lunn, Thomas P. Curtis, George F. Wells, Craig S. Criddle, Christopher A. Francis, and William T. Sloan. “Combined niche and neutral effects in a microbial wastewater treatment community.” Proceedings of the National Academy of Sciences. (2010)
  35. Wang, Xiaohui, Xianghua Wen, Craig Criddle, George Wells, Jie Zhang, and Yin Zhao. “Community analysis of ammonia-oxidizing bacteria in activated sludge of eight wastewater treatment systems.” Journal of Environmental Sciences. (2010)
  36. Xie, Xing, Liangbing Hu, Mauro Pasta, George F. Wells, Desheng Kong, Craig S. Criddle, and Yi Cui. “Three-dimensional carbon nanotube− textile anode for high-performance microbial fuel cells.” Nano Letters. (2010)
  37. Zhang, T., T. Jin, Q. Yan, M. Shao, G. Wells, C. Criddle, and H. H. P Fang. “Occurrence of ammonia‐oxidizing Archaea in activated sludges of a laboratory scale reactor and two wastewater treatment plants.” Journal of Applied Microbiology. (2009)
  38. Wells, George F., Hee‐Deung Park, Chok‐Hang Yeung, Brad Eggleston, Christopher A. Francis, and Craig S. Criddle. “Ammonia‐oxidizing communities in a highly aerated full‐scale activated sludge bioreactor: betaproteobacterial dynamics and low relative abundance of Crenarchaea.” Environmental Microbiology. (2009)
  39. Park, Hee-Deung, George F. Wells, Hyokwan Bae, Craig S. Criddle, Christopher A. Francis. “Occurrence of ammonia-oxidizing archaea in wastewater treatment plant bioreactors.” Applied and Environmental Microbiology. (2006)

 

Conference Papers

  1. Wells, G. F. “The promise and peril of DPAOs for Resource-Efficient EBPR.” (Invited Talk) WEF Forum 2019: James Barnard Research Conference on Emerging Themes in Biological Phosphorus Removal and Recovery, Austin, TX.
  2. Roots, P., Rosenthal, A., Wang, Y., Griffin, J., Sabba, F., Yang, F., Kozak, J., Zhang, H., & Wells, G. F. (2018) “Comammox Nitrospira dominate ammonia oxidation in a mainstream low dissolved oxygen nitrification reactor.” (Best Paper Award) IWA Nutrient Removal and Recovery Conference: Closing the Loop, Brisbane, Australia.
  3. Wells, G. F. (2018) “Emerging opportunities and knowledge gaps in mainstream shortcut nitrogen removal.” (Invited Talk) IWA Nutrient Removal and Recovery Conference: Closing the Loop, Brisbane, Australia.
  4. Roots, P., Sabba, F., Rosenthal, A., Wang, Y., Yang, F., Kozak, J., Zhang, H., & Wells, G. F. (2018) “Integrating low-energy and low-carbon shortcut N removal with biological P removal for sustainable mainstream wastewater treatment.” IWA Nutrient Removal and Recovery Conference: Closing the Loop, Brisbane, Australia.
  5. Rosenthal, A., Schraa, O., Rieger, L., Zhang, H., Kozak, J., Yang, F., Roots, P, & Wells. G. F. (2018) “Simulation of dissolved oxygen- and ammonia-based aeration strategies in a mainstream deammonification biofilm process.” WEFTEC 2018, New Orleans, LA
  6. Rosenthal, A., Roots, P., & Wells, G. F. (2018) “Comparing biofilm versus suspended growth mainstream partial nitritation/anammox.” (Invited Talk) WEFTEC 2018, New Orleans, LA.
  7. Petrovich, M., Rosenthal, A., Griffin, J., & Wells, G. F. (2018) “Spatially resolved abundances of antibiotic resistance genes and intI1 in wastewater treatment biofilms.” ACS 256th American Chemical Society National Meeting and Exposition, Boston, MA.
  8. Sabba, F., Gao, H., Roots, P., & Wells, G.F. (2018) “Using molecular tools to track denitrifying PAOs in integrated bio-P and N removal processes.” (Invited Talk) 2018 IWA Ecotechnologies for Wastewater Treatment, London, Canada.
  9. Wells, G. F. & Balogun, O. (2018) “Dynamic Optical Coherence Elastography: Towards rapid nondestructive and spatially resolved quantification of mesoscale biofilm mechanical properties.” (Invited Talk) NSF Biofilm Mechanical Properties Workshop, South Bend, IN.
  10. Roots, P. & Wells, G. F. (2018) “Denitrifying Polyphosphate Accumulating Organisms: Methods for Combining Nitrogen and Phosphorus Removal.” (Invited Talk) WEF Nutrient Removal and Recovery Conference, Raleigh, NC.
  11. Rosenthal, A., Schraa, O., Mehrdad, M., Roots, P., Ramalingam, K., Fillos, J., Rieger, L., & Wells. G. F. (2018) “Partial Nitritation/ Anammox Biofilm Model Behavior under Sidestream and Mainstream Loading.” Proceedings from the 6th WEF/ IWA Water Resource Recovery Modeling Seminar, Lac Beaufort, Canada.
  12. Downing, L., Fitzgerald, C., Willoughby, A., Rosenthal, A., Wells, G. F., Uri, N., & Young, M. (2018) “Simulation of unique dissolved oxygen nitrification communities: how do comammox organisms impact energy efficient nitrogen removal?” Proceedings from the 6th WEF/ IWA Water Resource Recovery Modeling Seminar, Lac Beaufort, Canada.
  13. Wells, G. F. (2018) “Probing Mechanisms of Nitrous Oxide Generation in a Denitrifying Polyphosphate Accumulating Bacteria Enrichment Culture.” (Invited Talk) ACS 255th American Chemical Society National Meeting and Exposition, New Orleans, LA.
  14. Notestein, J. & Wells, G. F. (2018) “Wastewater to Chemicals via Bioelectrochemically Derived Hydrogen Peroxide and Tandem Catalysis.” ACS 255th American Chemical Society National Meeting and Exposition, New Orleans, LA.
  15. Griffin, J. S., Taw, E., Gosavi, A., Thornburg, N. E., Pramanda, I. T., Gray, K. A., Notestein, J. M. & Wells, G. F. (2018) “Green oxidation via bioelectrochemically derived hydrogen peroxide.” ACS 255th American Chemical Society National Meeting and Exposition, New Orleans, LA.
  16. Gao, H., Ping, Y., Zhao, X., Liu, W.-T., Zhang, T., & Wells, G. F. (2017) “Metagenomic analysis of a denitrifying PAO enrichment culture as a source of N2O production.” Proceedings from the IWA NRR-LWWTP Conference on Sustainable Wastewater Treatment and Resource Recovery: Research, Planning, Design, and Operation, Chongqing, China.
  17. Gao, H. & Wells, G. F. (2017) “Nitrogen removal, phosphorus recovery, and energy production via microbial N2O generation from wastewater.” AWRA International Conference on Cutting-Edge Solutions to Wicked Water Problems, Tel Aviv, Israel.
  18. Rosenthal, A., Roots, P., Yang, F., Kozak, J., Zhang, H., & Wells, G. F. (2017) “Laboratory-scale investigation of integrated biological phosphorus removal and mainstream deammonification at the Terrence J. O’Brien water reclamation plant.” WEFTEC 2017, Chicago, IL.
  19. LaVergne, J. M., Gao, H., Carpenter, C., Helbling, D., Gray, K.A., & Wells, G. F. (2017) “Control of pharmaceuticals, personal care products, and other micropollutants: probing the ability of restored riparian systems to remove trace pollutants.” Proceedings of the Water Environment Federation. WEFTEC 2017, Chicago, IL
  20. Gao, H., Zhao, X., Zhou, L., & Wells, G. F. (2017) “Distinctive nitrogen oxides reduction capabilities of DPAOs in a long-term nitrite fed sequencing batch reactor.” WEFTEC 2017, Chicago, IL.
  21. Wells, G. F. (2017) “Understanding the impacts of low-energy and low-carbon nitrogen removal technologies on Bio-P and nutrient recovery processes.” (Invited Talk) WEFTEC 2017, Chicago, IL.
  22. Wells, G. F. (2017) “Fundamentals: Biofilm Reactor Basics and IFAS and MABR Technologies.” (Invited Talk) WEFTEC 2017, Chicago, IL.
  23. Wells, G. F. (2017) “The promise of molecular tools for BNR process understanding and control.” (Invited Talk) Microbiome Water Summit 2017, Chicago, IL.
  24. Wells, G. F. (2017) “The promise and peril of denitrifying polyphosphate accumulating organisms.” (Invited Talk) IWEA Nutrient Removal and Recovery Workshop, Addison, IL.
  25. Chu, B. T. T., Petrovich, M. L., Chaudhary, A., Wright, D., Murphy, B., Wells, G. F., & Poretksy, R. (2017) “Metagenomic analysis unveils how wastewater treatment effluent influences receiving water bodies in terms of antibiotic resistance genes, mobile genetic elements, and microbial community structure.” 4th International Symposium on Environmental Dimensions of Antibiotic Resistance (EDAR), East Lansing, MI.
  26. Petrovich, M., Chu, B., Wright, D., Griffin, J., Elfeki, M., Murphy, B., Poretsky, R., & Wells, G.F. (2017) “Metagenomic analysis of composition, retention, and mobilization of antibiotic resistance and production genes in biofilm and suspended growth wastewater treatment bioreactors.” 4th International Symposium on Environmental Dimensions of Antibiotic Resistance (EDAR), East Lansing, MI.
  27. Gao, H., Liu, M., Griffin, J. S., Zhao, X., Xu, L., Da, X., Scherson, Y., Liu, W.-T., & Wells, G. F. (2017) “Nutrient Removal & Energy Generation Via Microbial N2O Generation by Denitrifying Polyphosphate Accumulating Organisms.” 2017 AEESP Research and Education Conference, Ann Arbor, MI.
  28. Roots, P., Rosenthal, A., Yang, F., Kozak, J., Zhang, H., & Wells, G. F. (2017) “Assessment of Parallel Biofilm and Suspended Growth Deammonification Reactors Using Actual Mainstream Wastewater.” Proceedings from the WEF Nutrient Symposium, Fort Lauderdale, FL.
  29. Rosenthal, A., Roots, P., Downing, L., Yang, F., Kozak, J., Zhang, H., Balogun, O., & Wells, G. F. (2017) “Investigation of Guild Stratification in a Mainstream Partial Nitritation/Anammox Biofilm Reactor.” Proceedings from the 10th International Conference on Biofilm Reactors, Dublin, Ireland.
  30. Laureni, M., Weissbrodt, D. G., Villez, K., Robin, O., de Jonge, N., Rosenthal, A., Wells, G. F., Nielsen, J. L., Morgenroth, E., & Joss, A. (2017) “Biomass Segregation in Hybrid Biofilm Systems Improves NOB Control in Mainstream Partial Nitritation and Anammox.” Proceedings from the 10th International Conference on Biofilm Reactors, Dublin, Ireland.
  31. Wells, G. F. (2017) “The Impact of Aggregate Architecture on Partial Nitritation/ Anammox Process Performance and Stability.” (Invited Talk, Best Technical Presentation Award) Illinois Water Environment Association Annual Conference, Springfield, IL.
  32. Wells, G.F. (2017) “The Impact of Aggregate Architecture on Mainstream Nitritation/Anammox Process Performance and Stability.” (Invited Talk) KAUST Research Conference 2017- Change Paradigms for Wastewater Treatment: From Waste to Resource, KAUST, Saudi Arabia.
  33. Laureni, M., Weissbrodt, D. G., Villez, K., Robin, O., de Jonge, N., Rosenthal, A., Wells, G. F., Nielsen, J. L., Morgenroth, E., & Joss, A. (2017) “Robust NOB Control in Hybrid Biofilm Systems Operated for Mainstream Partial Nitritation and Anammox: An Experimental and Modeling Study.” (Best Paper Award) Proceedings from the Frontiers International Conference on Wastewater Treatment (FICWTM2017), Palermo, Italy.
  34. Rosenthal, A., Balogun, O., & Wells, G. F. (2016) “Morphological examination of nitrifying biofilms in a moving bed biofilm reactor using optical coherence tomography and fluorescence in-situ hybridization.” Proceedings of the Water Environment Federation (WEFTEC 2016, New Orleans, LA)
  35. Rosenthal, A., Balogun, O., & Wells, G. F. (2016) “Estimation of mesoscale structure in nitrifying biofilms.” Proceedings from the IWA Microbial Ecology and Water Engineering (MEWE) and Biofilms Specialist Conference, Copenhagen, Denmark.
  36. Griffin, J. S., & Wells, G. F. (2016) “Regional synchrony in full-scale activated sludge bioreactors due to deterministic microbial community assembly.” Proceedings from the IWA Microbial Ecology and Water Engineering (MEWE) and Biofilms Specialist Conference, Copenhagen, Denmark.
  37. Griffin, J. S. & Wells, G. F. (2016) “Long-term regional population synchrony in full-scale activated sludge bioreactors due to deterministic microbial community assembly.” 16th International Symposium on Microbial Ecology (ISME16), Montreal, Canada.
  38. Chu, B., Petrovich, M., Wright, D., Murphy, B., Wells, G. F., & Poretsky, R. (2016)“Is wastewater a source of antibiotic resistance genes to Lake Michigan?” 16th International Symposium on Microbial Ecology (ISME16), Montreal, Canada.

Patents

  1. Cantwell, Brian J., Craig S. Criddle, Kevin Lohner, Yaniv D. Scherson, and George F. Wells. “Microbial production of nitrous oxide coupled with chemical reaction of gaseous nitrous oxide.” U.S. Patent 8,932,847, issued January 13, 2015.

Book Chapters

  1. Scherson, Yaniv D., Zeynep Erdal, and George Wells. “Future Issues and Considerations of Nutrient Management in Wastewater Treatment.” In Shortcut Nitrogen Removal-Nitrite Shunt and Deammonification. Water Environment Federation, 2015.