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  4. Publikationen Life Sciences und Facility Management
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dc.contributor.authorTejido-Nuñez, Yaiza-
dc.contributor.authorAymerich, Enrique-
dc.contributor.authorSancho, Luis-
dc.contributor.authorRefardt, Dominik-
dc.date.accessioned2019-07-17T09:05:39Z-
dc.date.available2019-07-17T09:05:39Z-
dc.date.issued2019-
dc.identifier.issn0925-8574de_CH
dc.identifier.urihttps://digitalcollection.zhaw.ch/handle/11475/17506-
dc.description.abstractThe ongoing and increasing worldwide demand for fish has caused a steady increase in aquaculture production during the last decades. This emphasizes the importance of farming systems with a low ecological footprint, like recirculating aquaculture systems (RAS), which are an alternative to traditional open systems. Furthermore, implementing microalgae treatments in RAS, sustainable water management and low discharge of concentrated wastewater could be achieved, allowing its reuse in the system. The influence of three factors on microalgae treatment efficiency in RAS water were studied: i) microalgae species (Chlorella vulgaris, Tetradesmus obliquus), ii) water pre-treatment (sterile filtration), and iii) sampling location within the RAS (e.g. from fish tank, after UV- disinfection, etc.). To this end, fully factorial, replicated cultivations were carried out in 100-ml flasks, and nutrient removal, microalgae growth, and density of bacteria and protozoa were measured for up to 18 days. Results show that both species are able to grow in RAS water and effectively remove nutrients in it, yet their performance depended greatly on water quality. In sterile RAS water, growth and nutrient removal efficiency of C. vulgaris surpassed that of T. obliquus. In non-sterile RAS water, the pattern reversed because of grazing protozoa. The location of sampling within the RAS had no discernible effect on microalgae growth or nutrient removal efficiency. The results confirm that a microalgae-based technology to treat and valorise RAS water is technically feasible, yet caution that inferences made can be reversed depending on the choice of the species and the pretreatment of the RAS water prior to cultivation.de_CH
dc.language.isoende_CH
dc.publisherElsevierde_CH
dc.relation.ispartofEcological Engineeringde_CH
dc.rightsLicence according to publishing contractde_CH
dc.subjectAquakulturde_CH
dc.subjectMikroalgede_CH
dc.subjectProtozoade_CH
dc.subjectNährstoffde_CH
dc.subjectAbwasserreinigungde_CH
dc.subject.ddc630: Landwirtschaftde_CH
dc.titleTreatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus : the effect of pretreatment on microalgae growth and nutrient removal efficiencyde_CH
dc.typeBeitrag in wissenschaftlicher Zeitschriftde_CH
dcterms.typeTextde_CH
zhaw.departementLife Sciences und Facility Managementde_CH
zhaw.organisationalunitInstitut für Umwelt und Natürliche Ressourcen (IUNR)de_CH
dc.identifier.doi10.1016/j.ecoleng.2019.05.021de_CH
zhaw.funding.euNode_CH
zhaw.originated.zhawYesde_CH
zhaw.pages.end9de_CH
zhaw.pages.start1de_CH
zhaw.publication.statuspublishedVersionde_CH
zhaw.volume136de_CH
zhaw.publication.reviewPeer review (Publikation)de_CH
zhaw.webfeedAquakultur-Systemede_CH
zhaw.author.additionalNode_CH
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Tejido-Nuñez, Y., Aymerich, E., Sancho, L., & Refardt, D. (2019). Treatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus : the effect of pretreatment on microalgae growth and nutrient removal efficiency. Ecological Engineering, 136, 1–9. https://doi.org/10.1016/j.ecoleng.2019.05.021
Tejido-Nuñez, Y. et al. (2019) ‘Treatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus : the effect of pretreatment on microalgae growth and nutrient removal efficiency’, Ecological Engineering, 136, pp. 1–9. Available at: https://doi.org/10.1016/j.ecoleng.2019.05.021.
Y. Tejido-Nuñez, E. Aymerich, L. Sancho, and D. Refardt, “Treatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus : the effect of pretreatment on microalgae growth and nutrient removal efficiency,” Ecological Engineering, vol. 136, pp. 1–9, 2019, doi: 10.1016/j.ecoleng.2019.05.021.
TEJIDO-NUÑEZ, Yaiza, Enrique AYMERICH, Luis SANCHO und Dominik REFARDT, 2019. Treatment of aquaculture effluent with Chlorella vulgaris and Tetradesmus obliquus : the effect of pretreatment on microalgae growth and nutrient removal efficiency. Ecological Engineering. 2019. Bd. 136, S. 1–9. DOI 10.1016/j.ecoleng.2019.05.021
Tejido-Nuñez, Yaiza, Enrique Aymerich, Luis Sancho, and Dominik Refardt. 2019. “Treatment of Aquaculture Effluent with Chlorella Vulgaris and Tetradesmus Obliquus : The Effect of Pretreatment on Microalgae Growth and Nutrient Removal Efficiency.” Ecological Engineering 136: 1–9. https://doi.org/10.1016/j.ecoleng.2019.05.021.
Tejido-Nuñez, Yaiza, et al. “Treatment of Aquaculture Effluent with Chlorella Vulgaris and Tetradesmus Obliquus : The Effect of Pretreatment on Microalgae Growth and Nutrient Removal Efficiency.” Ecological Engineering, vol. 136, 2019, pp. 1–9, https://doi.org/10.1016/j.ecoleng.2019.05.021.


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