- Member, Board of Directors, North American Membrane Society (NAMS), June 2015-2018.
- Member, Board of Directors, Association of Environmental Engineering and Science Professors, July 2013-2016.
- Co-Chair, Membranes for Water Treatment and Desalination session in The North American Membrane Society Annual Meeting NAMS 2015, May 30 – June 3, 2015, Boston, MA.
- Co-Chair, North American Membrane Society Annual Conference, Houston, TX, May 31 – June 4, 2014.
- Member, Regional Air Quality Planning Committee (RAQPC), Houston-Galveston Area Council, 2012 – present.
- Reviewer, The Blue Grass Chemical Agent Destruction Pilot Plant’s Water Recovery System, National Academy of Engineering, Washington DC, 2011-2012.
- Co-Chair, Microorganism Interactions with Porous Membranes session in The North American Membrane Society Annual Meeting NAMS 2012, June 9 – 13, 2012, New Orleans, LA.
- Member, Project Advisory Committee for “Equivalency of Advanced Treatment Trains for Potable Reuse”, WateReuse Foundation 2012 – 2015.
- Co-Chair, Urban Aerosols VII session in American Association for Aerosol Research (AAAR) 30th Annual Conference, October 3 – 7, 2011, Orlando, FL.
- Scientific Committee Member, International Water Association (IWA) Regional Conference “Membrane Technology and Water Reuse,” October 18 – 22, 2010, Istanbul, Turkey.
- Chair, Membrane based separations session, International Water Association (IWA) Conference “Particle Separations and Nanoparticles in Water,” June 3 – 5, 2009, Durham, NC.
- Scientific Committee Member, International Water Association (IWA) Conference “Particle Separations and Nanoparticles in Water,” June 3 – 5, 2009, Durham, NC.
- Member, Project Advisory Committee for “Membrane Distillation for Water Reuse using Nanostructured Ceramic Membranes,” WateReuse Foundation 2008 – 2010.
- Co-Chair, Nanofiltration and Reverse Osmosis session, North American Membrane Society Annual Conference, Orlando, FL, May 2007.
- Invited participant, Nanotechnology-enabled Water Treatment (NeWT) workshop, Center for Biological and Environmental Nanotechnology, Rice University, Houston, TX, February 2007.
- Participant, Center for Sustainability Engineering Workshop, Carnegie Mellon University, July 2006.
- Member, AEESP Lectures Sub-Committee, 2006 – 2012.
- Member, Holly A. Cornell Scholarship Award Committee, Water Research Foundation, 2006 – present.
- Invited participant, NSF workshop on “Chemistry and Sustainability”, Pacific Northwest National Labs, Richland, WA, November 2005.
- Chair, AEESP Awards Master’s Thesis Sub-Committee, 2005.
- Member, AEESP Awards Master’s Thesis Sub-Committee, 2003 – 2004.
- Moderator, Research session on “Membrane Modeling” AWWA Membrane Technology Conference, 2003 Atlanta, GA.
- Member, Water Research Foundation, University Student Activities Committee (USAC) 2003 – present.
- Member, Planning Committee for 2001 AWWA Specialty Conference on Membrane Technology.
- Member, Planning Committee for 1999 AWWA Specialty Conference on Membrane Technology.
- Moderator, “Membrane Fouling” session, in AWWA Membrane Technology Conference, 1999. Long Beach, CA.
- Member, Project Advisory Committee for “Development of Integrated Adsorbent/Membrane Systems. AWWARF 1998 – 2002.
- Member, Project Advisory Committee for “Treatability of Perchlorate-Containing Water by RO and NF”, AWWARF 1998 – 2002.
- Chair, Research Committee, Texas Section AWWA, 2000 – 2003.
- Chair, Research Committee on Membrane Technology, AWWA, 1998 – 2001.
- Moderator, “Membranes: Surface and Performance” session, American Chemical Society 221st National Meeting, April 1 – 5, 2001. San Diego, CA.
- Organizer, Research Workshop on “Research Thrusts in Membrane Technologies”, AWWA Membrane Technology Conference, March 4 – 7, 2001. San Antonio, TX.
- Moderator, “Research II – New Developments and Fundamental Studies” session, AWWA Membrane Technology Conference, March 4 – 7, 2001. San Antonio, TX.
- Invited Participant, AWWA Research Foundation and US Bureau of Reclamation “Membrane Research Needs Workshop”, July 27 – 28, 2000. Golden, CO.
- Organizer, Research session on “Disinfection Using Membranes” AWWA Annual Conference and Exposition, 2000. Denver, CO.
- Organizer, “Membrane Modeling” session, in AWWA Annual Conference and Exposition, 1999. Chicago, IL.
- Member, Technical Working Group for the interpretation of ICR data. U.S. EPA 1998.
- Member, Research Committee on Membrane Technology, AWWA, 1997 – 2003.
- Member, Research Committee on Particulate Contaminants, AWWA, 1997 – 2003.