Current personnel



François Birgand

I am an Associate Professor of Hydrology and Ecological Engineering and I direct the Biogeochemistry and Ecological Engineering Water lab since 2008 where we try to improve the treatment efficiencies of streams, wetlands, soils or woodchip bioreactors. There are three main reasons why I am in academia: I have an insatiable need to know more (the scientist in me), I want to provide smart solutions (the ingénieur in me), and I love to teach what I have understood (teacher in me).
On Howard Garner’s theory of multiple intelligences, I score the highest on the naturalistic one. Much of my research approaches are rooted in the unquenchable need to observe and quest to better understand nature. I am not particularly good at conceptualizing, and I tend to believe things for which there is or I can find/provide very strong evidence. Naturally (!), I like birds, botany, classical music, singing, spirituality, and R!

Samuel Garvey

Research Assistant. I have a hand in everything from logistical, organizational and safety initiatives to installation and maintenance of equipment and field work, but my primary interest is electronics. I’m starting with Caleb Ray’s (described below) excellent work on the multiplexer pumping systems and refining them further. I’m implementing features like serial communications and data logging while cutting costs, streamlining manufacture, and maintaining or improving the current standard of robustness. All this is being done with an eye on commercial viability. My other project is a remote monitoring solution for some of our more far flung field sites. If instrumentation can be monitored remotely, problems can be identified more quickly and data loss can be minimized. My goal is to streamline processes any way I can, be it hardware, software, organization or logistics. I aim to sweep away as much of the minutiae that separates the team from their research as I can.

Graduate Students

Beth Allen

Ph.D. candidate. I am the main developer of the Water Quality Rating Curve package to predict concentrations from absorbance data.

Bryan Maxwell

Ph.D. student. I grew up in Charlotte, North Carolina and came to NC State for my undergraduate degree. After 2 years in Civil Engineering I switched into Bio & Ag Engineering department. I stayed at NCSU to pursue a doctoral degree. My research focus is to improve our understanding of agricultural and urban BMPs. My main tool is to apply multi-point sampling methods to obtain high-resolution data in space and in time. This technology can help us understand these systems better and ultimately improve their design. My primary research application is in woodchip bioreactors for improving drainage water quality.


Sheida Moin

Ph.D. student. I work on characterizing the internal functioning of urban wetlands and on using smart technology to improve their treatment efficiency. More short biography here.

Cyrus Belenky

M.S. Student. Born and raised in the D.C. suburbs, I attended NC State for my undergraduate, graduating with a B.S. in Bio & Ag Engineering and a German Studies Minor. I returned to NC State after some time off to pursue my masters Bio & Ag Engineering, focusing on the effects of stream restoration on water quality.


Qianyu (Joey) Hang

Ph.D. student. I came to NC State after completing my Master’s degree in environmental engineering at Chinese Research Academy of Environmental Sciences in China. During my master’s study, I focused on the application of plant carbon source in improving nitrate removal efficiency for treatment of nitrate-rich agricultural runoff by constructed wetlands and bioreactors.
At NC State, I work on quantifying the water quality benefits of a stream restoration in the coastal plain of NC. The overarching questions that motivate my research are 1) whether stream restoration does improve water quality? 2) how do we precisely quantify and interpret the real impacts of stream restoration on water quality?

Undergraduate Students

Dani Winter

Undergraduate senior. I work on quantifying the water quality benefits of a stream restoration in the coastal plain of NC. More short biography here.

Andrew Yount

Undergraduate junior at NC State University, working toward a B.S. in Biological Engineering, with a concentration on ecological engineering. I came to the university unsure of what I wanted to study, but stumbled upon the Bio & Ag Engineering department and found myself to be quite at home here. I have a strong desire to develop and apply innovative solutions to addressing concerns regarding water and soil resources. This past summer, in 2017, I acted as an undergraduate research assistant in Dr. Birgand’s laboratory, helping out in various ways. This academic year, from Fall 2017 through Spring 2018, I am participating in a team research project investigating the effectiveness of employing Floating Treatment Wetlands to improve water quality by removing excess nutrients.

Maya Hoon

Undergraduate junior in Environmental Sciences. I arrived at NC State initially majoring in International Studies in the Humanities department, however as I took more environmentally-focused courses, I developed a desire to better understand ways to protect the environment and to construct solutions to the problem. In order to satiate this desire for knowledge, I have transitioned into Environmental Sciences, and I am currently working on a team research project to quantify the water quality benefits and effectiveness of Floating Treatment Wetlands. Our main research questions address the following:

  1. Do planted mats have higher nitrogen and phosphorous removal potential than unplanted mats?
  2. Does recirculating water improve the rates of removal?
  3. Does microbial biofilm improve removal rates?

Caleb Ray

Undergraduate senior in Electrical and Computer Engineering. I have built a robust version of the multiplexer pumping systems to expand the capabilities of water quality sensors to spatial resolution. I have work in Birgand Water lab for the last two years and have participated in field campaigns.

Previous personnel