Nitrogen Removal From Anaerobic Processes

Graduate student collaborators: Zerihun Alemayehu and Brett Wagner

Delgado Vela, J., Stadler, L.B., Martin, K. J., Raskin, L., Bott, C. B., Love, N. G. Prospects for Biological Nitrogen Removal from Anaerobic Effluents during Mainstream Wastewater Treatment. 2015. Environmental Science and Technology: Letters, 2(9):234-244. DOI: 10.1021/acs.estlett.5b00191. (Best Paper of 2015)

Research Questions

  • What are the limits to total nitrogen removal from mainstream anaerobic processes?
  • How much methane and nitrous oxide are emitted from these processes (membrane aerated biofilm reactor and granular sludge reactor)?
  • Which microbial populations contribute to nitrogen removal from these processes?

Research Approach

I am integrating the use of one-dimensional biofilm modeling and lab-scale reactors to understand these technologies. By coupling experimentation with modeling, I am generating new hypotheses using the models and testing the hypotheses in the laboratory.