Yuchuan Fan, Jie Zhuang, Michael Essington, Sindhu Jagadamma, John Schwartz, and Jaehoon Lee
DNBRs
Constructed in TN
What is denitrifying bioreactor (DNBR)?
DNBR is an underground barrier that intercepts the groundwater drainage to convert the nitrate-laden water to inert nitrogen gas by bacteria. The media is usually filled with woodchips or other carbon sources.
Provided by Yuchuan Fan
Why we choose DNBRs?
- No maintenance
- No extra land
- Cost-effective
- Sustainable up to 20 years
- Proved technology
How do DNBRs work?
Microbial organisms colonize the DNBR's media (e.g. woodchip). The microbes "eat" the carbon from the media, and "breathe" the nitrate from the water. They breathe in nitrate and breathe out nitrogen gas, which released from DNBR to the atmosphere. Thus, nitrate can be removed from agricultural drainage before entering into the water bodies.
NEWS
Yuchuan Fan, Michael Essington, Sindhu Jagadamma, Jie Zhuang, John Schwartz, Jaehoon Lee
He, Q., Dasi, E. A., Cheng, Z., Talla, E., Main, K., Feng, C., & Ergas, S. J. (2021). Wood and sulfur-based cyclic denitrification filters for treatment of saline wastewaters. Bioresource Technology, 124848.