Energy performance and greenhouse gas emissions of kelp cultivation for biogas and fertilizer recovery in Sweden

Pechsiri, Joseph Santhi; Thomas, Jean‐Baptiste; Risén, Emma; Ribeiro, Mauricio Sodré; Malmström, Mikael; Nylund, Göran M.; Jansson, Anette; Welander, Ulrika; Pavia, Henrik; Gröndahl, Fredrik

doi:10.1016/j.scitotenv.2016.07.220

Cited by 41 publications

(28 citation statements)

References 29 publications

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“…The goal is to prevent a deterioration of water quality in the Danish marine areas despite a predicted increase in fish aquaculture by at least 25% by 2020. Also in Sweden, the ecosystem services that can be provided by seaweed farming are increasingly recognized as relevant benefits (Pechsiri et al 2016, Hasselstrom et al 2018.…”

Section: Seaweed Aquaculturementioning

confidence: 99%

“…While the suboptimal conditions limit the profitability of the industry to some extent, seaweed harvesting and seaweed aquaculture are currently promoted as a way to decrease the nutrient load to eutrophic coastal areas and to mitigate the negative symptoms of eutrophication (Seghetta et al 2016). Seaweeds also gain in interest as a potential alternative to fossil fuels (Pechsiri et al 2016). The nonprovisioning ecosystem services that can be provided by seaweeds (Rönnbäck et al 2007) are also increasingly recognized and valued in the area.…”

Section: Toward the Futurementioning

confidence: 99%

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Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

2019

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Due to low salinity and lack of hard substrata, the Baltic Sea and Kattegat area and German and Danish North Sea coasts are characterized by a relatively low diversity of seaweeds. At the same time the areas are severely eutrophicated, which has caused extensive shifts in macroalgal communities toward opportunistic species. Unattached seaweed communities dominated by Furcellaria lumbricalis, which have been a resource for hydrocolloid production since the 1940s, have been severely reduced due to eutrophication and unsustainable harvesting and are nowadays only exploited commercially in Estonia. On the other hand, the biomass of opportunistic seaweeds of various red, green and brown algal genera has increased. They cause ecological problems, are a nuisance on many tourist beaches and constitute at the same time a potential bioresource that is so far only exploited to a limited extent for production of energy and fertilizer. Commercial seaweed cultivation is largely focused on Saccharina latissima and still very limited, but is currently being expanded as a compensation measure for sea-based fish aquaculture. Also land-based seaweed cultivation is primarily employed for recycling of nutrients in tank animal aquaculture, but in most cases so far only on an experimental scale.

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Section: Seaweed Aquaculturementioning

confidence: 99%

Section: Toward the Futurementioning

confidence: 99%

Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

2019

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“…Frattini et al 28 investigated potential three pathways for green ammonia production (wind or solar electricity, biogas from anaerobic digestion, and syngas) and demonstrated that ammonia can be produced from renewable energy sources. Tallaksen et al 29 investigated the production of chemical fertilizers using wind energy in rural areas. The results showed that the production of ammonia based on wind energy, compared with conventional methods, significantly reduces greenhouse gas emissions.…”

Section: Figurementioning

confidence: 99%

Investigation of solar energy utilization for production of hydrogen and sustainable chemical fertilizer: A case study

Mostafaeipour

Sedeh

2019

Int J Energy Res

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Summary Renewable energies play a vital role in the economic and social development and progress of many countries. As one of the most significant sources of renewable energy, solar energy has been used due to its availability in many regions. Generating electricity for hydrogen production is one of the applications of solar energy. In petrochemical complexes, hydrogen is often used for producing fertilizers, especially urea fertilizers. The present study aims at investigating five major Iranian petrochemical complexes in terms of their suitability for the construction of a solar plant to produce electrolysis‐based green chemical fertilizers. To this end, a multicriteria decision‐making model is proposed, which includes the fuzzy analytic hierarchy process (AHP) and extended TODIM method of multicriteria decision making (including crisp, interval, and fuzzy numbers). The present research investigates 10 criteria for prioritizing petrochemical complexes, classified into four general categories, namely, climatic, geographic, environmental, and probability of natural disaster occurrence categories. Having calculated the weight of the criteria using the fuzzy AHP method, the alternatives are prioritized using the extended TODIM method. The methods of simple additive weighting (SAW), Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS), and VIKOR were then used for validation of the results. Results showed that the Shiraz Petrochemical Complex has the highest priority and Khorasan Petrochemical Complex has the lowest priority for producing green fertilizer via solar energy–assisted water electrolysis. By using the solar system, Shiraz Petrochemical Complex can emit over 1900 tons less pollutants in the environment per day and provides up to 8% of its annual total production through clean energy.

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“…Cultivated seaweed provide distinguished advantages over other cultivated biomasses: they require little or no arable land, fertilisers or fresh water (Subhadra and Edwards 2010; John et al 2011; Wei et al 2013) while providing a variety of other ecosystem services, including nutrient bioremediation (Chung et al 2002) and possibly habitat provision (Phillips 1990). Seaweed biomass shows promising potential as a material in the production of biofuels, fertiliser, materials, chemicals, feed and food (Jung et al 2013; van Hal et al 2014; Chapman et al 2015; Pechsiri et al 2016; Tayyab et al 2016; Molina-Alcaide et al 2017). Coupled with a significant projected growth in the fisheries sector to meet a growing demand for protein (OECD/FAO 2015) and calls for the development of marine biomass within the blue growth initiative to support more sustainable bio-based economies (EU Commission 2012), the coming decades are likely to see significant increases in the development of off- and near-shore production systems, not just of seaweed, but also of fish, crustaceans and molluscs.…”

Section: Introductionmentioning

confidence: 99%

The perception of aquaculture on the Swedish West Coast

Thomas

Nordström

Risén

et al. 2017

Ambio

Self Cite

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Efforts are on the way on the Swedish West Coast to develop the capacity for cultivation of marine resources, notably of kelps. Given that this is a region of great natural and national heritage, public opposition to marine developments has been identified as a possible risk factor. This survey thus sought to shed light on awareness levels, perceptions of different types of aquaculture and on reactions to a scenario depicting future aquaculture developments on the West Coast. When asked about their general opinions of aquaculture, respondents tended to be favourable though a majority chose neutral responses. On the whole, respondents were favourable to the depicted scenario. Finally, it was found that the high-awareness group tended to be more supportive than the low or medium-awareness groups, hinting at the benefits of increasing awareness to reduce public aversion and to support a sustainable development of aquaculture on the Swedish West Coast.Electronic supplementary materialThe online version of this article (doi:10.1007/s13280-017-0945-3) contains supplementary material, which is available to authorized users.

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Energy performance and greenhouse gas emissions of kelp cultivation for biogas and fertilizer recovery in Sweden

Cited by 41 publications

References 29 publications

Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

Seaweed resources of the Baltic Sea, Kattegat and German and Danish North Sea coasts

Investigation of solar energy utilization for production of hydrogen and sustainable chemical fertilizer: A case study

The perception of aquaculture on the Swedish West Coast

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