Examining the capacity for cultivating marine macroalgae using process liquids from biogas digestate as nutrient source and cultivation medium

Sebök, Stefan; Hanelt, Dieter

doi:10.1016/j.biombioe.2020.105762

Cited by 4 publications

(5 citation statements)

References 46 publications

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“…Small size and low density coupled with electrostatic stability in solution due to their negatively charged surface require additional separation processes that represent additional costs not required in macroalgal cultures (Ge and Champagne 2017 ). Large-scale processing is further difficulted by the low dry mass content produced in microalgae cultures (< 1% for the commonly used spirulina and chlorella ) (Sebök and Hanelt 2020 ).…”

Section: Technologies For the Recovery Of Rare-earth Elements From Se...mentioning

confidence: 99%

Algal sorbents and prospects for their application in the sustainable recovery of rare earth elements from E-waste

Pinto

Colónia

Abdolvaseei

et al. 2023

Environ Sci Pollut Res

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Efficient and sustainable secondary sourcing of Rare-Earth Elements (REE) is essential to counter supply bottlenecks and the impacts associated with primary mining. Recycled electronic waste (E-waste) is considered a promising REE source and hydrometallurgical methods followed by chemical separation techniques (usually solvent extraction) have been successfully applied to these wastes with high REE yields. However, the generation of acidic and organic waste streams is considered unsustainable and has led to the search for “greener” approaches. Sorption-based technologies using biomass such as bacteria, fungi and algae have been developed to sustainably recover REE from e-waste. Algae sorbents in particular have experienced growing research interest in recent years. Despite its high potential, sorption efficiency is strongly influenced by sorbent-specific parameters such as biomass type and state (fresh/dried, pre-treatment, functionalization) as well as solution parameters such as pH, REE concentration, and matrix complexity (ionic strength and competing ions). This review highlights differences in experimental conditions among published algal-based REE sorption studies and their impact on sorption efficiency. Since research into algal sorbents for REE recovery from real wastes is still in its infancy, aspects such as the economic viability of a realistic application are still unexplored. However, it has been proposed to integrate REE recovery into an algal biorefinery concept to increase the economics of the process (by providing a range of additional products), but also in the prospect of achieving carbon neutrality (as large-scale algae cultivation can act as a CO2 sink). Graphical abstract

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Section: Technologies For the Recovery Of Rare-earth Elements From Se...mentioning

confidence: 99%

Algal sorbents and prospects for their application in the sustainable recovery of rare earth elements from E-waste

Pinto

Colónia

Abdolvaseei

et al. 2023

Environ Sci Pollut Res

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“…On the contrary, the main limitations of land-based cultivation are the need for extensive land and the high cost of infrastructure building, workforce and energy for the maintenance of farm conditions [ 26 ]. Another major obstacle in the large-scale onshore cultivation of macroalgae is the need for a feasible nutrient source [ 27 ]. The wastewater effluents from municipal sources or biogas plants can be used as nutrient-rich media for the cultivation of macroalgae.…”

Section: Cultivation Of Marine Macroalgamentioning

confidence: 99%

“…The wastewater effluents from municipal sources or biogas plants can be used as nutrient-rich media for the cultivation of macroalgae. Sebök and Hanelt [ 27 ] reported that processed biogas digestate with rich nutrients can be used for the cultivation of marine macroalgae, increasing the algal biomass.…”

Section: Cultivation Of Marine Macroalgamentioning

confidence: 99%

“…With the growing applications of seaweed polysaccharides, there is an increasing demand for seaweed biomass which cannot be met alone by harvesting from the wild. Despite the few reports on nutrient sources for land-based cultivation [ 24 , 26 , 27 , 141 ], the search for a suitable nutrient source that can support large-scale production of marine macroalgae is still a major bottleneck to be overcome. Hence, aquaculture practices are to be intensified and robust management practices are to be envisaged for the maximum production of seaweed biomass and bioactive polysaccharides.…”

Section: Challenges and Outlookmentioning

confidence: 99%

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Fucoidan from Marine Macroalgae: Biological Actions and Applications in Regenerative Medicine, Drug Delivery Systems and Food Industry

Anisha¹,

Padmakumari²,

Patel

et al. 2022

Bioengineering

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The marine macroalgae produce a collection of bioactive polysaccharides, of which the sulfated heteropolysaccharide fucoidan produced by brown algae of the class Phaeophyceae has received worldwide attention because of its particular biological actions that confer nutritional and health benefits to humans and animals. The biological actions of fucoidan are determined by their structure and chemical composition, which are largely influenced by the geographical location, harvest season, extraction process, etc. This review discusses the structure, chemical composition and physicochemical properties of fucoidan. The biological action of fucoidan and its applications for human health, tissue engineering, regenerative medicine and drug delivery are also addressed. The industrial scenario and prospects of research depicted would give an insight into developing fucoidan as a commercially viable and sustainable bioactive material in the nutritional and pharmacological sectors.

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“…However, in large‐scale production increasing interest in nutrient recycling from other sources exists, both to reduce the costs and because it is a water remediation strategy. Cultivation substrate (mineral‐rich medium) for algae cultivation in bioreactors or open systems can come from many sources such as household wastewater (Neveux et al, 2016; Wang et al, 2017), digestate from biogas production (Sebök & Hanelt, 2020; Yu et al, 2019), animal husbandry (Ji et al, 2013), food and dairy industry (Navarro‐López et al, 2020; Van Den Hende et al, 2016), aquaculture (Andreotti et al, 2020; Marinho‐Soriano et al, 2009) or greenhouse productions, to mention some. Also, both micro‐ and macroalgae are used as biofilters in productions of other aquatic organisms (Wang et al, 2007; Xing et al, 2018), integrated productions such as aquaponics (Han et al, 2019; Kotzen et al, 2019) or integrated multitrophic aquaculture (IMTA; Buck et al, 2018; Fossberg et al, 2018; Knowler et al, 2020).…”

Section: Advancing Biobased Resource Production In the Nordic Regionmentioning

confidence: 99%

Sustainable resource production for manufacturing bioactives from micro‐ and macroalgae: Examples from harvesting and cultivation in the Nordic region

Chauton

Forbord

Mäkinen

et al. 2021

Physiologia Plantarum

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Micro-and macroalgae are a great and important source of raw material for manufacturing of bioactives and ingredients for food, feed, cosmetics, or pharmaceuticals. Macroalgae (or seaweeds) have been harvested locally from wild stocks in smaller volumes for a long time, and a production chain based on cultivated seaweed for the harvest of considerably larger amounts is in progress for several species.Microalgae and cyanobacteria such as Spirulina have been produced in "backyard ponds" for use in food and feed also for a long time, and now we see the establishment of large production plants to control the cultivation process and increase the production yields. There is also a shift from harvesting or cultivation centered in

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Examining the capacity for cultivating marine macroalgae using process liquids from biogas digestate as nutrient source and cultivation medium

Cited by 4 publications

References 46 publications

Algal sorbents and prospects for their application in the sustainable recovery of rare earth elements from E-waste

Algal sorbents and prospects for their application in the sustainable recovery of rare earth elements from E-waste

Fucoidan from Marine Macroalgae: Biological Actions and Applications in Regenerative Medicine, Drug Delivery Systems and Food Industry

Sustainable resource production for manufacturing bioactives from micro‐ and macroalgae: Examples from harvesting and cultivation in the Nordic region

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