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|Publication type:||Article in scientific journal|
|Type of review:||Peer review (publication)|
|Title:||Nitrogen transformations across compartments of an aquaponic system|
Espinal, Carlos A.
Smits, Theo H. M.
|Published in:||Aquacultural Engineering|
|Publisher / Ed. Institution:||Elsevier|
|Subjects:||Water recirculation; Nitrogen transformation; Aquaponic; Lettuce; Tilapia|
|Subject (DDC):||639.8: Aquaculture|
|Abstract:||The presence and transformations of nitrogen (N) in the environment depend on a variety of environmental factors but are also strongly influenced by anthropogenic activities such as modern agriculture. Understanding N transformations within the context of agricultural systems is crucial for efficient use thereof. The aim of this study was to investigate the changes in concentration of N forms (ammonium, nitrite, nitrate and organic N) within an aquaponic system, a modern agricultural system, in order to obtain insights into environmental pressures influencing N transformation processes. By measuring the concentrations of the individual N compounds, complemented by the determination of abiotic parameters and other relevant nutrients within the system water at 13 sampling points, significant differences between compartments that build up an aquaponic system could be demonstrated. These differences were attributed to individual microenvironments specific to the aerobic loop, anaerobic loop and radial flow settler as a connection between the two, shaping the microbial processes within the aquaponic system.|
|Fulltext version:||Published version|
|License (according to publishing contract):||CC BY 4.0: Attribution 4.0 International|
|Departement:||Life Sciences and Facility Management|
|Organisational Unit:||Institute of Natural Resource Sciences (IUNR)|
|Published as part of the ZHAW project:||Characterization of nitrogen dynamics in an aquaponic system|
|Appears in collections:||Publikationen Life Sciences und Facility Management|
Files in This Item:
|2021_Schmautz-etal_Nitrogen-transformation-aquaponic-system.pdf||Article||1.87 MB||Adobe PDF|
|2021_Schmautz-etal_Nitrogen-transformations-aquaponic-system_Suppl.pdf||Supplementary Material||469.19 kB||Adobe PDF|
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