Hai Pham

I am currently a postdoctoral fellow working in the Division of Hydrologic Sciences (DHS), at the Desert Research Institute (DRI). I obtained my Ph.D. in Hydrology from LSU. Before I joined DRI in 2016, I worked as a postdoc fellow at LSU.

My research aims to reduce uncertainty in groundwater modeling with focus on developing computer programs for prediction of flow and contaminant movement in porous and fractured media, uncertainty assessment of hydrologic parameters, conceptual models, and scenarios, optimization, and experimental designs using high-performance computing systems. At DRI, I am developing computer models to predict flow and radionuclide transport through fractured rock aquifers at the Pahute Mesa of the Nevada National Security Site (NNSS).

I enjoy conducting research and publishing, developing grant proposals as well as teaching university courses and mentoring students.

Yu (Frank) Yang

Dr. Yang’s current research interests and strengths are focused on the organic matter-mineral-bacteria interfacial redox reactions, critical for global cycles of carbon/nitrogen and emergent contaminants.

Daniel Gerrity

Water and wastewater treatment: biological, physical, and chemical treatment processes

Indirect potable reuse (IPR) and direct potable reuse (DPR): Water quality, public health, and public perception

Advanced oxidation processes (AOPs): Ozone, ozone/H2O2, UV/H2O2, TiO2 photocatalysis

Trace organic contaminants (TOrCs), including pharmaceuticals and endocrine disrupting compounds

Environmental microbiology (disinfection and methods): Bacteria, viruses, and protozoan parasites

Haroon Stephen

Dr. Stephen has diverse research experience in the areas of Remote Sensing, GIS, and GPS applications. His Ph.D. research involved the modeling of microwave scattering and emission behavior of electromagnetic waves over Saharan sand surfaces and Amazon vegetation. His ongoing research interests include applications of remote sensing and GIS technologies to water resource mapping; drought study; and climate change study. Presently, he is involved in several Federal and State sponsored research projects involving geospatial data research and applications. I am also developing a geovisualization facility at UNLV that will provide state-of-the-art visualization for the research and educational needs of UNLV and the region.

His research involves development of Remote Sensing and GIS technologies and their application to Natural Resource Mapping. This includes modeling of microwave remote sensing measurements of backscatter and radiometric temperature to understand spatial and temporal interconnections of geomorphology, vegetation, hydrology, ecology, and water resources.

Jacimaria Batista

Dr. Jacimária Batista is a professor of environmental engineering at UNLV. Her research involves technology development for water and wastewater treatment. She has built an international and national reputation for her pioneering work on treatment technologies to remove the contaminant perchlorate from waters. Dr. Batista is the inventor of a hybrid technology for perchlorate removal (U.S. patent #7407581). In addition to her work on perchlorate, Dr. Batista investigated the removal of several contaminants by ion-exchange, the treatment of ion-exchange brines, and biological phosphorus removal.  Dr. Batista’s research is collaborative and multidisciplinary and has attracted funding from industry, federal, state, and local agencies, including U.S. EPA, AWWARF, NSF, NDEP, Clark County Reclamation District, Clark County Health Department, Clark County Flood Control District, Las Vegas Valley Water District, and water utilities in California, Arizona, and Nevada. Her research has been disseminated broadly.  Dr. Batista is an accomplished and student-focused instructor; She is the recipient of various teaching awards. Her teaching evaluations are consistent with the highest standards of her department and college. Students praise her enthusiastic teaching style, high academic expectations, quality of the courses, and approachability. She teaches senior level and graduate level courses on water and wastewater treatment and solids and hazardous waste engineering. Dr. Batista works closely with her Ph.D., Masters, and undergraduate students motivating them to excel at all levels. Dr. Batista has served her profession, university, college and department extensively. She is a resourceful problem-solver and an active member of the department in matters of curriculum and academic priorities. She is a sought-after environmental engineering consultant to the water industry of California, Nevada, and Arizona.

Eric Marchand

Dr. Marchand’s research interests:  Optimizing biological processes for the treatment of water and wastewater; development and testing of membrane bioreactor technology; novel water reuse strategies; bioremediation of acid mine drainage; microbial ecology in natural and engineered systems; and biogeochemical reactions in the environment.

Sajjad Ahmad

Dr. Sajjad Ahmad is an Associate Professor at the University of Nevada, Las Vegas. His research is focused on application of systems approach to understand and manage complex water and environmental systems. The goal is to provide decision support to policy makers for sustainable management resources. The water-energy nexus group is studying energy use in water and wastewater treatment plans and energy use in water distribution systems. Ahmad has also contributed to research on malaria control efforts in sub-Saharan Africa with his study of water ponds that provide breeding grounds for mosquitoes.