“My time as a doctoral student at Washington University was the most glorious learning period of my life. I learned how to develop the creativity necessary to uncover and tackle the unknown. The faculty serve as incredible mentors who ensure you can achieve to your fullest potential.” - Yandi Hu, assistant professor, University of Houston​

Melissa L. Holtmeyer

Melissa L. Holtmeyer

AAAS Science and Technology Policy Fellow,
U.S. Department of Defense

Melissa Holtmeyer has helped to shape the direction of national science and technology policy through her opportunities as an American Association for the Advancement of Science (AAAS) Science and Technology policy fellow in both the U.S. Senate and the U.S. Department of Defense, where she is currently performing the duties of the deputy director for Energy Security in the Office of the Secretary of Defense.

Bruce Rittmann

Bruce Rittmann
Professor, Arizona State University

An international leader in the study of microbiological systems, Bruce Rittmann leads research teams that combine engineering with microbiology, biochemistry and geochemistry to address fundamental and applied issues in the treatment of wastewater, bioremediation of contaminated environments and production of renewable energy. A member of the National Academy of Engineering, Rittmann is known for pioneering the development of the Membrane Biofilm Reactor, which uses naturally occurring micro organisms to remove contaminants from water.

Chris Hogan

Chris Hogan

Assistant Professor and McKnight Land-Grant Professor,
University of Minnesota College of Science & Engineering

​Hogan’s lab at Minnesota focuses on the fundamentals of the physics and chemistry of very small particles in the gas phase, called aerosol nanoparticles. While application is secondary to his research, potential applications include new particle formation in the atmosphere, combustion emissions or materials synthesis in high temperature​ reactors.

Lilia Abron

Lilia Abron

Founder, PEER Consultants and PEER Africa

In 1978, Abron founded PEER Consultants, P.C., a full-service environmental engineering consulting firm based in Washington, D.C. 

Every change, Abron says — from a new public transportation system to new development — raises environmental issues. Abron is recognized as America’s first African-American woman to earn a doctorate in chemical and environmental engineering. In honor of her contributions to industry, Abron was elected a fellow of the American Academy of Arts and Sciences in 2004.

Yandi Hu

​Yandi Hu

Assistant Professor, University of Houston

Yandi Hu obtained her PhD in 2013 from Washington University in St. Louis, and she is currently an assistant professor in the department of Civil & Environmental Engineering at University of Houston. Her main research areas are environmental nanochemistry and geochemistry. Some specific interests include: engineered nucleation and growth of nanomaterials for biomedical and industrial applications, nucleation and growth of iron hydroxide nanoparticles and implications for heavy metal immobilization; surface and subsurface geochemical reactions related to geologic CO2 sequestration; radioactive waste immobilization; and hydraulic fracture​ operations.