Advanced Water Technology Center




Scarcity of potable water will continue to be one of the main problems humanity faces in the 21st century. Based on the current trend, membrane processes will continue to be a leading technology for water and wastewater treatment practices, particularly due to its high product quality, reduced waste production, and smaller space requirements.

My main field of research is membrane processes for water purification, wastewater reclamation, and desalination. My current focus is on the understanding and implementation of membrane contactor processes (forward osmosis and membrane distillation) and pressure-driven membrane processes (reverse osmosis, nanofiltration, ultrafiltration, and microfiltration) in various reuse and zero-liquid-discharge applications.

Through the links provided above, you can see my current research activities, publications, and more links to various resources. You may contact me for more information about my research and to learn more about our new water research center (AQWATEC).



  • Stephanie Riley (PhD student) and Tori (Billings) Frank (MS student) were awarded the 2015 WateReuse Colorado Graduate Student Fellowships.
  • Bryan Coday received the W. Wesley Eckenfelder Graduate Research Award, a national award in environmental engineering for graduate students. The award is given annually by the American Academy of Environmental Engineers & Scientists (AAEES) in cooperation with the Association of Environmental Engineering and Science Professors (AEESP) to recognize an environmental engineering graduate student whose research contributes to the knowledge pool of wastewater management.

  • CEE Associate Professor Tzahi Cath has been awarded the Ben L. Fryrear Professorship in the College of Engineering & Computational Sciences at CSM. The award is for a period of three years. Dr. Cath was chosen in recognition of his academic excellence, both in research and teaching.
  • AQWATEC in the news: Worth its weight: Water in the west
  • Kerri Hickenbottom (PhD candidate) and Liz Bell (MS student) have received the 2014 research fellowship of WateReuse Colorado.
  • The Department of Civil and Environmental Engineering at CSM received the Education Program of the Year Award of WateReuse Colorado.
  • Three student from our research group won prizes at the 11th Annual RMSAWWA/RMWEA Studen Research Conference. Brayn Coday (PhD candidate) won 1st place for oral presentation, Kerri Hickenbottom (PhD candidate) won 2nd place for oral presentation, and Liz Bell (MS student) won best poster award (a paid for trip to 2014 AWWA ACE). Congratulations!!!

  • Kerri Hickenbottom, a CEE PhD candidate, has received the 2014 CSM/CEE Best Paper Awawrd sponsored by ARCADIS. Kerri's winning paper is titled "Sustainable operation of membrane distillation for enhancement of mineral recovery from hypersaline solutions".
  • Stephanie Riley, a CEE MS student, received a 2014 Sussman Foundation summer fellowship.
  • Liz Bell, a CEE MS student, received a 2014 Sussman Foundation summer fellowship.
  • Bryan Coday, a CEE PhD candidate, has been awarded a 2014 American Membrane Technology Association (AMTA) Graduate Student Scholarship. Bryan is working on the development of novel engineered osmosis processes for treatment of oil and gas produced water and frackturing flowback. The project is funded by DOE/RPSEA.
  • Bryan Coday, a CEE PhD candidate, has been awarded a 2013 WateReuse Colorado Graduate Student Award.



Dr. Tzahi Cath
Professor of Civil and Environmental Engineering


Department of Civil and
Environmental Engineering


Colorado School of Mines
Golden, CO 80401-1887

Phone: (303) 273-3402
Fax: (303) 273-3413