Daphnia magna as bio-harvester of green microalgae grown on residual resources

Stanley A. Gorzelnik; Xinyu Zhu; Irini Angelidaki; Marja Koski; Borja Valverde-Pérez

Daphnia magna as bio-harvester of green microalgae grown on residual resources

Stanley A. Gorzelnik, Xinyu Zhu, Irini Angelidaki, Marja Koski, Borja Valverde-Pérez^*

^*Corresponding author for this work

Technical University of Denmark

Research output: Contribution to conference › Conference abstract for conference › Research › peer-review

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Abstract

Conventional wastewater treatment has a difficult time removing inorganic constituents, particularly nitrogen and phosphorus, which are primarily responsible for eutrophication. These two elements are also valuable resources that microalgae assimilate into their biomass, creating valuable products. However, they are difficult to separate from water (Maurya et al., 2022). Daphnia magna are efficient filter feeders and graze on microalgae at high rates. Daphnia magna are also high value fish live feed. This study evaluated cleaning aquaculture wastewater using two microalgae strains, Chlorella vulgaris and Scenedesmus dimorphus, which are then biologically harvested by D. magna. It also investigated the effects of hydraulic residence time (HRT) and the nitrogen to phosphorus ratio on the water treatment process.

Original language	English
Publication date	2022
Number of pages	4
Publication status	Published - 2022
Event	IWA World Water Congress & Exhibition 2022 - Bella Center, Copenhagen, Denmark Duration: 11 Sept 2022 → 15 Sept 2022 https://worldwatercongress.org/

Conference

Conference	IWA World Water Congress & Exhibition 2022
Location	Bella Center
Country/Territory	Denmark
City	Copenhagen
Period	11/09/2022 → 15/09/2022
Internet address	https://worldwatercongress.org/

Keywords

Green microalgae
Nutrient removal and recovery
Alternative proteins

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title = "Daphnia magna as bio-harvester of green microalgae grown on residual resources",

abstract = "Conventional wastewater treatment has a difficult time removing inorganic constituents, particularly nitrogen and phosphorus, which are primarily responsible for eutrophication. These two elements are also valuable resources that microalgae assimilate into their biomass, creating valuable products. However, they are difficult to separate from water (Maurya et al., 2022). Daphnia magna are efficient filter feeders and graze on microalgae at high rates. Daphnia magna are also high value fish live feed. This study evaluated cleaning aquaculture wastewater using two microalgae strains, Chlorella vulgaris and Scenedesmus dimorphus, which are then biologically harvested by D. magna. It also investigated the effects of hydraulic residence time (HRT) and the nitrogen to phosphorus ratio on the water treatment process.",

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T1 - Daphnia magna as bio-harvester of green microalgae grown on residual resources

AU - Gorzelnik, Stanley A.

AU - Zhu, Xinyu

AU - Angelidaki, Irini

AU - Koski, Marja

AU - Valverde-Pérez, Borja

PY - 2022

Y1 - 2022

N2 - Conventional wastewater treatment has a difficult time removing inorganic constituents, particularly nitrogen and phosphorus, which are primarily responsible for eutrophication. These two elements are also valuable resources that microalgae assimilate into their biomass, creating valuable products. However, they are difficult to separate from water (Maurya et al., 2022). Daphnia magna are efficient filter feeders and graze on microalgae at high rates. Daphnia magna are also high value fish live feed. This study evaluated cleaning aquaculture wastewater using two microalgae strains, Chlorella vulgaris and Scenedesmus dimorphus, which are then biologically harvested by D. magna. It also investigated the effects of hydraulic residence time (HRT) and the nitrogen to phosphorus ratio on the water treatment process.

AB - Conventional wastewater treatment has a difficult time removing inorganic constituents, particularly nitrogen and phosphorus, which are primarily responsible for eutrophication. These two elements are also valuable resources that microalgae assimilate into their biomass, creating valuable products. However, they are difficult to separate from water (Maurya et al., 2022). Daphnia magna are efficient filter feeders and graze on microalgae at high rates. Daphnia magna are also high value fish live feed. This study evaluated cleaning aquaculture wastewater using two microalgae strains, Chlorella vulgaris and Scenedesmus dimorphus, which are then biologically harvested by D. magna. It also investigated the effects of hydraulic residence time (HRT) and the nitrogen to phosphorus ratio on the water treatment process.

KW - Green microalgae

KW - Nutrient removal and recovery

KW - Alternative proteins

M3 - Conference abstract for conference

T2 - IWA World Water Congress & Exhibition 2022

Y2 - 11 September 2022 through 15 September 2022

ER -

Daphnia magna as bio-harvester of green microalgae grown on residual resources

Abstract

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Keywords

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