You are here


Annalisa Onnis-Hayden

Associate Teaching Professor, Civil and Environmental Engineering
431 Snell Engineering Center
360 Huntington Avenue
Boston, MA 02115


  • Ph.D., Environmental Engineering, University of Cagliari, Italy, 2004
  • M.S., Civil and Environmental Engineering, Northeastern University, 2007
  • B.S. and MS, Environmental Engineering, University of Cagliari, Italy, 2000


  • Professional Engineer: Italy

Research & Scholarship Interests

Biological treatment processes; ecotoxicology and toxicity assessment; microbial population dynamics and ecology in engineered biological systems
Affiliated With

Department Research Areas

College Research Initiatives

Honors & Awards

  • 2014 Teaching Excellence Award, Department of Civil and Environmental Engineering, Northeastern University, Boston, MA.
  • 2011 Visiting Professor Appointment, University of Cagliari for the year 2011/2012
  • 2010 Certificate of Merit for Presentation at ACS 240th National Meeting-ENVR
  • 2005 Sardinian Minister of Education Fellow
  • 1999 Erasmus Exchange Program Fellow
  • 1994, 1995, 1996, 1997, 1998 excellence in study fellow from the Italian Commission for the Rights to University Studies (E.R.S.U).

Professional Affiliations

  • New England Water Environment Association
  • Water Environment Federation

Selected Publications

  • Y. Men, P. Han, D.E. Helbling, N. Jehmlich, C. Herbold, R. Gulde, A. Onnis-Hayden, A.Z. Gu, D.R. Johnson, M. Wagner, K. Fenner, Biotransformation of two Pharmaceuticals by the Ammonia-Oxidizing Archaeon Nitrososphaera Gargensis, Environmental Science and Technology, 2016, 50(9), 4682-4692
  • S.M. Rahman, M.J. Eckelman, A. Onnis-Hayden, A. Gu, Life Cycle Assessment of Advanced Nutrient Removal Technologies for Wastewater Treatment, Environmental Science and Technology, 2016, 50, 3020-3030
  • A.E. Schellenger, A. Onnis-Hayden, D.P. Jaisi, P. Larese-Casanova, Oxygen Kinetic Isotope Effects in Selenate During Microbial Reduction, Applied Geochemistry, 63, 2015, 261-271
  • Y. Li, X. Wang, A. Onnis-Hayden, K.T. Wan, A.Z. Gu, Universal Quantifier Derived from AFM Analysis Links Cellular Mechanical Properties and Cell-Surface Integration Forces with Microbial Deposition and Transport Behavior, Environmental Science and Technology, 48(3), 2014, 1769-1778
  • A. Onnis-Hayden, N. Majed, A.Z. Gu, Decoupling the Microbial Populations for Phosphorus and Nitrogen Removal in Integrated Fixed-Film Activated Sludge Enhanced Biological Phosphorus Removal (IFAS-EBPR) System, Water Research, 45, 2011, 3845-3854
  • A. Onnis-Hayden, H. Weng, M. He, S. Hansen, V. Ilyin, et al., Prokaryotic Real-Time Gene Expression Profiling for Toxicity Assessment, Environmental Science and Technology, 43(12), 2009, 4574-4581

Related News

October 10, 2018

A team of Civil and Environmental students from Northeastern University placed third in the WEF Environmental Design Competition, which saw the participation of 22 teams from across the 3 countries.

April 5, 2018

CEE undergraduate students Kestral Johnson and Madeline DuBois are among this year’s MIT Water Night poster winners for their research on water systems led by Professor Annalisa Onnis-Hayden...

January 31, 2018

Madeline DuBois, E'20, is using her environmental engineering degree to work with Engineers Without Borders to bring water distribution systems to developing countries as well as work in the lab with CEE Associate Teaching Professor Annalisa Onnis-Hayden on creating a tidal wetland wastewater treatment system.

Related Events


121 SL

6:00 pm to 7:00 pm

See Description for Locations 

8:00 am to 3:00 pm

322 Hayden Hall

5:50 pm to 6:50 pm

150 Forsyth

6:15 pm to 7:00 pm