| Publication type: | Article in scientific journal |
| Type of review: | Peer review (publication) |
| Title: | Aquaponic systems : nutrient recycling from fish wastewater by vegetable production |
| Authors: | Graber, Andreas Junge, Ranka |
| DOI: | 10.1016/j.desal.2008.03.048 |
| Published in: | Desalination |
| Volume(Issue): | 246 |
| Issue: | 1-3 |
| Page(s): | 147 |
| Pages to: | 156 |
| Issue Date: | 2009 |
| Publisher / Ed. Institution: | Elsevier |
| ISSN: | 0011-9164 1873-4464 |
| Language: | English |
| Subjects: | Aquaponics; Vegetables; Fish; Urban farming |
| Subject (DDC): | 630: Agriculture |
| Abstract: | This chapter describes the possibility to combine wastewater treatment in recirculating aquaculture systems (RAS) with the production of crop plants biomass. In an aquaponic RAS established in Waedenswil, Zurich, the potential of three crop plants was assessed to recycle nutrients from fish wastewater. A special design of trickling filters was used to provide nitrification of fish wastewater: Light-expanded clay aggregate (LECA) was filled in a layer of 30 cm in vegetable boxes, providing both surface for biofilm growth and cultivation area for crop plants. Aubergine, tomato and cucumber cultures were established in the LECA filter and nutrient removal rates calculated during 42-105 days. The highest nutrient removal rates by fruit harvest were achieved during tomato culture: over a period of >3 months, fruit production removed 0.52, 0.11 and 0.8 g/m2/d for N, P and K in hydroponic and 0.43, 0.07 and 0.4 g/m2/d for N, P and K in aquaponic. In aquaponic, 69% of nitrogen removal by the overall system could thus be converted into edible fruits. Plant yield in aquaponic was similar to conventional hydroponic production systems. The experiments showed that nutrient recycling is not a luxury reserved for rural areas with litlle space limitation; instead, the additionally occupied surface generates income by producing marketable goods. By converting nutrients into biomass, treating wastewater could become a profitable business. |
| URI: | https://digitalcollection.zhaw.ch/handle/11475/3417 |
| Fulltext version: | Published version |
| License (according to publishing contract): | Licence according to publishing contract |
| Departement: | Life Sciences and Facility Management |
| Organisational Unit: | Institute of Natural Resource Sciences (IUNR) |
| Appears in collections: | Publikationen Life Sciences und Facility Management |
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Graber, A., & Junge, R. (2009). Aquaponic systems : nutrient recycling from fish wastewater by vegetable production. Desalination, 246(1-3), 147–156. https://doi.org/10.1016/j.desal.2008.03.048
Graber, A. and Junge, R. (2009) ‘Aquaponic systems : nutrient recycling from fish wastewater by vegetable production’, Desalination, 246(1-3), pp. 147–156. Available at: https://doi.org/10.1016/j.desal.2008.03.048.
A. Graber and R. Junge, “Aquaponic systems : nutrient recycling from fish wastewater by vegetable production,” Desalination, vol. 246, no. 1-3, pp. 147–156, 2009, doi: 10.1016/j.desal.2008.03.048.
GRABER, Andreas und Ranka JUNGE, 2009. Aquaponic systems : nutrient recycling from fish wastewater by vegetable production. Desalination. 2009. Bd. 246, Nr. 1-3, S. 147–156. DOI 10.1016/j.desal.2008.03.048
Graber, Andreas, and Ranka Junge. 2009. “Aquaponic Systems : Nutrient Recycling from Fish Wastewater by Vegetable Production.” Desalination 246 (1-3): 147–56. https://doi.org/10.1016/j.desal.2008.03.048.
Graber, Andreas, and Ranka Junge. “Aquaponic Systems : Nutrient Recycling from Fish Wastewater by Vegetable Production.” Desalination, vol. 246, no. 1-3, 2009, pp. 147–56, https://doi.org/10.1016/j.desal.2008.03.048.
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