Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-21297
Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Nitrogen transformations across compartments of an aquaponic system
Authors: Schmautz, Zala
Espinal, Carlos A.
Smits, Theo H. M.
Frossard, Emmanuel
Junge, Ranka
et. al: No
DOI: 10.1016/j.aquaeng.2021.102145
10.21256/zhaw-21297
Published in: Aquacultural Engineering
Volume(Issue): 92
Issue: 102145
Issue Date: 10-Jan-2021
Publisher / Ed. Institution: Elsevier
ISSN: 0144-8609
1873-5614
Language: English
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.
URI: https://digitalcollection.zhaw.ch/handle/11475/21297
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

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