Renewable and Sustainable Energy Reviews, Journal Year: 2024, Volume and Issue: 210, P. 115266 - 115266
Published: Dec. 20, 2024
Language: Английский
Reviews in Environmental Science and Bio/Technology, Journal Year: 2024, Volume and Issue: unknown
Published: Sept. 2, 2024
Green tides, characterised by massive blooms of the seaweed Ulva, pose a significant threat to coastal economies and marine ecosystems. This review explores potential repurposing harmful Ulva for carbon sequestration, addressing critical global issue CO2 emission. We conducted comprehensive literature examined conversion shoreline biomass into biochar through pyrolysis, process that can be implemented directly at biorefineries. approach not only facilitates sequestration but also mitigates greenhouse gas emissions enhances soil quality amendments. Our covers data from 2008 2022, focusing on during green tide episodes in China Korea. assessment indicates has sequester approximately 3.85 million tons equivalent (CO2e), with about 1.93 CO2e potentially stabilised conversion. Furthermore, we hypothetical techno-economic analysis assessing sustainability economic viability cultivation production sequestration. These findings suggest combined could financially viable profitable. Despite challenges posed our highlights their role mitigating climate change.
Language: Английский
Citations
3
Climate, Journal Year: 2025, Volume and Issue: 13(5), P. 91 - 91
Published: April 30, 2025
The existing management strategies of macrophyte beach wrack are not always environmentally sound. In this study, we tried to assess the impact presence or absence on CO2 flux and possibility creating an sound recycling based their removal from processing into biochar. study was conducted coast Sea Japan in bay Kievka. Picarro G4301 portable laser gas analyzer used measure fluxes areas with without wrack. 23 times higher at plots wrack, compared after manual average, there a 1.6-fold decrease flow values Considering frequency emissions area, which is associated frequent cyclones storms, it possible organize systematic cleaning for production Creating projects conversion biochar can have both environmental economic benefits. benefits include reduction wrack; long-term storage carbon biomass form biochar; soils (carbon sequestration) correct technology introducing soil. However, more accurate assessment, monitoring seasonal measurements calculations entire technological chain production, risks, footprint necessary.
Language: Английский
Citations
0
Sustainability, Journal Year: 2023, Volume and Issue: 15(15), P. 12072 - 12072
Published: Aug. 7, 2023
Macroalgae can be processed into various products with the potential to substitute land-based crops; their cultivation bioextract nutrients from coastal waters. This study investigated economic cost and environmental impacts of multiple seaweed platforms, strategies, processing/end-use strategies through techno-economic analysis (TEA) life cycle assessment (LCA) a focus on Saccharina latissima Gracilaria tikvahiae. Cultivation platforms included single-layer longline, dual-layer strip, strip systems. Processing/end-use biofuel, dried sea vegetables, marketable commercial fertilizer, animal feed. Economic costs decreased were highest using common longline system ($4.44 kg−1 dry weight (dw) S. $6.73 dw G. tikvahiae when cultivated rotation). The use reduced $2.19 for $3.43 Seaweed drying was major contributor macroalgae processing. Yet, all scenarios achieved benefits marine eutrophication. best performance observed biomass assuming offset vegetable production, or used as biofeedstock anaerobic digestion combined heat power.
Language: Английский
Citations
8
Environmental Microbiology, Journal Year: 2024, Volume and Issue: 26(6)
Published: May 31, 2024
Abstract Seaweeds are important components of marine ecosystems with emerging potential in aquaculture and as sources biofuel, food products pharmacological compounds. However, an increasingly recognised threat to natural industrial seaweed populations is infection parasitic single‐celled eukaryotes from the relatively understudied oomycete lineage. Here we examine eukaryomes diverse brown, red green macroalgae collected polar (Baffin Island), cold‐temperate (Falkland Islands) tropical (Ascension Island) locations, a focus on closely related diatom taxa. Using 18S rRNA gene amplicon sequencing, show unexpected genetic taxonomic diversity eukaryomes, strong broad‐brush association between eukaryome composition geographic location, some evidence structure macroalgal phylogenetic relationships (phylosymbiosis). fraction showed disparate patterns structure, highlighting much weaker geography no phylosymbiosis. We present several novel haplotypes most common Eurychasma dicksonii report for first time cosmopolitan distribution absence host specificity this pathogen. This indicates rich pathogens highlights that these may be generalist highly adaptable environmental conditions.
Language: Английский
Citations
2
Ocean & Coastal Management, Journal Year: 2024, Volume and Issue: 258, P. 107401 - 107401
Published: Oct. 4, 2024
Language: Английский
Citations
2
Frontiers in Marine Science, Journal Year: 2023, Volume and Issue: 10
Published: Nov. 30, 2023
Macroalgae offshore cultivation and sinking is considered a potentially practical approach for ocean-based carbon dioxide removal. However, several considerations need to be resolved assess the effectiveness sustainability of this approach. Currently, studies focus on area required climate-relevant sequestration through macroalgae without considering realistic, global spatial limitations. This study uses spatially-explicit suitability assessment model optimised open-ocean afforestation site designation. By applying specific maritime, ecological industrial constraints, two maps are produced: a) suitable areas sinking, b) only (for purposes). These data provide more realistic quantifying ocean surface (including corresponding depths) within spatially sustainable framework. The resulting estimate respective EEZs world countries. A total calculated at 10.8M km 2 , whereas sinking-only account 32.8M ocean. implications patterns national levels discussed. We suggest that concept ‘g row nearshore, sink offshore’ should explored as an alternative cultivation.
Language: Английский
Citations
5
Marine Environmental Research, Journal Year: 2023, Volume and Issue: 191, P. 106162 - 106162
Published: Sept. 11, 2023
Language: Английский
Citations
4
Ecosystem Health and Sustainability, Journal Year: 2024, Volume and Issue: 10
Published: Jan. 1, 2024
How would the biodiversity of macroalgae modify carbon (C) and nitrogen (N) stocks within a blue habitat? We addressed this knowledge gap by quantifying biomass macroalgal origins across seascape seagrass meadow. Such information is warranted due to paucity data on deposits that function as allochthonous inputs into an ecosystem’s pool organic matter. Macroalgae were collected from Merambong shoal (Johor, Malaysia) in December 2020 February 2021. C N analyses performed matter, measurements upscaled represent estimates. Stocks origin meadow estimated at 10.71 ± 1.3 Mg 0.75 0.11 N. The was heterogeneous, which similarly reflected taxa-specific variability up 44.7% 4.9% highest cumulative contributed members Ulvaceae for Corallinaceae Lithophyllaceae among calcifying species. morphology habit 35 species found provided indicators their autochthonous versus nature based benthic or drifting tendencies. Predictors factored indices not evident, although Evenness index partially explained it spatial level. model still able pinpoint clusters hotspots meadow, allowing management measures protection reserves while mitigating release excess
Language: Английский
Citations
1
MAST. Maritime studies/Maritime studies, Journal Year: 2024, Volume and Issue: 23(3)
Published: July 23, 2024
Language: Английский
Citations
1
Marine Pollution Bulletin, Journal Year: 2024, Volume and Issue: 210, P. 117327 - 117327
Published: Nov. 25, 2024
Language: Английский
Citations
1