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But they and many aquatic care humble who raise crops and animals face a common problem: excess nitrogen in drainage water. Whether it flows out to the Great Barrier Reef or the Gulf of Mexico, the nutrient contributes to harmful algal blooms that starve fish and other organisms of oxygen. We're all dealing with this issue.
It's really exciting that bioreactors are bringing us together around a potential solution," says Laura Christianson, assistant professor in the Department of Crop Sciences at the University of Illinois and lead author on aquatic care humble new synthesis article accepted for publication in Transactions of the American Society of Agricultural and Biological Engineers ASABE.
Denitrifying bioreactors come in many shapes and sizes, but in their simplest form, they're trenches filled with wood chips.
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Water from fields or aquaculture facilities flows through the trench, where bacteria living in wood chip crevices turn nitrate into a harmless gas that escapes into the air. This edge-of-field conservation practice has been studied for at least a dozen years, but most of what scientists know about nitrogen removal acre is aquatic care humble on laboratory replicas and smaller-scale experimental setups. The USDA's National Resource Conservation Service published a set of standardized bioreactor guidelines inbased in part on Christianson's early field-scale work, and now more and more U.
They're catching on in other countries, too. The ASABE article is the first to synthesize the available data from full-size bioreactors on working farms across the world.
She adds bioreactors, like all conservation practices, have their limitations, but nitrous oxide emissions aren't one of them. We don't know the full story on nitrous oxide with bioreactors yet, but we can say aquafic good confidence they're not creating a huge nitrous oxide problem," she says. She also partnered with the Illinois Farm Bureau to create a series of step-by-step videos explaining how to test the water. You have to know how much water is flowing through the bioreactor and how much nitrogen is in the water," huble says. The short videos, which are aimed at non-researchers such as farmers aquatic care humble water quality volunteers, break the process down into five steps. Christianson notes her students, postdoctoral researchers, and lab staff all pulled together to create the series. Christianson, who may just be the world's biggest cheerleader for bioreactors, admits the monitoring guidelines and video series are a little self-serving.
aquatic care humble And then we'll have more data to show how well bioreactors work and how we can make them work better. Original written by Lauren Quinn. Note: Content may be edited for style and length. Journal Reference: Laura E. Christianson, Richard A. Cooke, Christopher H. Hay, Matthew J. Helmers, Gary W. Feyereisen, Andry Z. Ranaivoson, John T. Rosen, William T. Pluer, Louis A. Schipper, Hannah Dougherty, Rhianna J. Robinson, Ian A. Layden, Stuart M.]