Hongxu Zhou is a postdoctoral researcher at the Illinois Sustainable Technology Center (ISTC), having successfully defended his PhD in Agricultural and Biological Engineering at the University of Illinois Urbana-Champaign in August 2024. Since joining ISTC in 2022 as a research affiliate, Hongxu has focused on water quality management, particularly in treating both traditional and emerging contaminants. His innovative work includes eco-treatment systems, such as engineered biochar and denitrifying woodchip bioreactors, with an emphasis on balancing pollution mitigation with resource reuse. Hongxu's current research targets biochar systems for the destruction of Per- and polyfluoroalkyl substances (PFAS). Keep reading to learn more about his journey, insights, and advice for those new to the field.
Q&A with Hongxu Zhou
Q: Can you tell us about yourself and your role at PRI?
A: I have been working at ISTC as a research affiliate since 2022 and decided to continue as a postdoctoral researcher. My research focuses on water quality management, the treatment of both traditional and emerging contaminants, and advancing the circular economy. Through eco-treatment and nature-based systems, like engineered biochar and denitrifying woodchip bioreactors, I conduct lab-scale studies, field demonstrations, and sustainability analyses. This work helps improve water quality while promoting sustainable practices. My current research focuses on utilizing biochar systems for the destruction of Per- and polyfluoroalkyl substances (PFAS).
Q: What drew you to your area of work or study?
A: I was born in a small city surrounded by mountains where agriculture is the backbone of the economy. However, agriculture also contributes significantly to water pollution. This led me to pursue agricultural engineering. I believe agriculture is an essential industry that requires more investment, and I’ve stayed committed to this goal throughout my career.
Q: What tools are indispensable to your work?
A: Microsoft Excel.
Q: What questions do you get asked most frequently about your career, and how do you answer them?
A: People often ask how I convince farmers and stakeholders to adopt new systems. I take a "bottom-up" approach. I start with lab-scale experiments to understand the technology, then move to field-scale demonstrations to test real-world feasibility. Finally, I analyze the benefits—not just environmental but also economic, like cost-effectiveness and long-term sustainability. This evidence-based approach helps farmers see tangible results, whether it’s improved nutrient management, enhanced water quality, or cost savings.
Q: What advice would you give to those just starting out in your field?
A: Be patient and believe in yourself. Read widely and don’t hesitate to ask for help when needed. If possible, write a review—it’s a great way to deepen your understanding and contribute to the field.
Q: What do you do in your free time?
A: In my free time, I enjoy working out at the gym. I also love hiking and exploring nature whenever I can.