Suitability of pre-digested dairy effluent for mixotrophic cultivation of the hydrogen-producing microalgae Tetraselmis subcordiformis

The costs associated with microalgal biomass production can be reduced by leveraging alternative and cheap growth media. Digestate from fermentation reactors is a particularly interesting candidate for use in cultivating mixotrophic species. The aim of the present study was to assess whether pre-dig...

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Veröffentlicht in:Environmental technology. - 1993. - 45(2024), 3 vom: 28. Jan., Seite 471-482
1. Verfasser: Dębowski, Marcin (VerfasserIn)
Weitere Verfasser: Dudek, Magda, Nowicka, Anna, Quattrocelli, Piera, Kazimierowicz, Joanna, Zieliński, Marcin
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Green algae anaerobic treatment biohydrogen dairy wastewater photobioreactor Hydrogen 7YNJ3PO35Z
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245 1 0 |a Suitability of pre-digested dairy effluent for mixotrophic cultivation of the hydrogen-producing microalgae Tetraselmis subcordiformis 
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520 |a The costs associated with microalgal biomass production can be reduced by leveraging alternative and cheap growth media. Digestate from fermentation reactors is a particularly interesting candidate for use in cultivating mixotrophic species. The aim of the present study was to assess whether pre-digested milk-industry effluent can be harnessed to grow Tetraselmis subcordiformis and produce hydrogen. The experimental series with 25% and 50% effluent in the growth medium performed the best, producing more than 2000 mgVS biomass/dm3. The biogas produced in these variants contained over 60% hydrogen. Increasing the effluent in the medium to 75% led to significant deterioration of performance, both in terms of T. subcordiformis biomass growth and biohydrogen production. The highest efficiency of nitrogen and phosphorus removal, respectively 98.1 ± 1.9% and 97.1 ± 1.4%, was observed in the system to which 25% of sewage was introduced. Increasing the share of fermented wastewater directly reduced the efficiency of removing biogenic compounds. A very strong negative correlation was found between initial N-NH4 in the growth medium and T. subcordiformis biomass production rates (R2 = 0.9177) 
650 4 |a Journal Article 
650 4 |a Green algae 
650 4 |a anaerobic treatment 
650 4 |a biohydrogen 
650 4 |a dairy wastewater 
650 4 |a photobioreactor 
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650 7 |a 7YNJ3PO35Z  |2 NLM 
700 1 |a Dudek, Magda  |e verfasserin  |4 aut 
700 1 |a Nowicka, Anna  |e verfasserin  |4 aut 
700 1 |a Quattrocelli, Piera  |e verfasserin  |4 aut 
700 1 |a Kazimierowicz, Joanna  |e verfasserin  |4 aut 
700 1 |a Zieliński, Marcin  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Environmental technology  |d 1993  |g 45(2024), 3 vom: 28. Jan., Seite 471-482  |w (DE-627)NLM098202545  |x 1479-487X  |7 nnns 
773 1 8 |g volume:45  |g year:2024  |g number:3  |g day:28  |g month:01  |g pages:471-482 
856 4 0 |u http://dx.doi.org/10.1080/09593330.2022.2112981  |3 Volltext 
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