Wednesday, May 14, 2025

Algae Biomass Carbon Sequestration Update! Biological Carbon Pump Functions

 https://www.researchgate.net/profile/Sanjay-Swami-3/publication/389293762_Harnessing_Edaphic_Microalgae_for_Soil_Carbon_Sequestration_and_Climate-smart_Agriculture/links/67bf03d9f5cb8f70d5c04227/Harnessing-Edaphic-Microalgae-for-Soil-Carbon-Sequestration-and-Climate-smart-Agriculture.pdf

 For example, rice fields inoculated with cyanobacteria showed a 10–15%
increase in grain yield compared to non-inoculated fields. The application of Chlorella
vulgaris as a biofertilizer has also been reported to improve soil organic matter by 20% and
enhance soil microbial activity.
https://onlinelibrary.wiley.com/doi/abs/10.1111/gcb.70086 

macrophytes and elevated dissolved oxygen (DO) concentrations enhance carbon sequestration via microbial carbon pump pathways, while the restoration significantly mitigates methane emissions caused by eutrophication. These findings highlight an extra function of aquatic macrophyte restoration, offering valuable insights into microbial processes for future restoration efforts aimed at promoting sustainable aquatic ecosystems and mitigating global warming.

 https://www.sciencedirect.com/science/article/abs/pii/B9780443241109000190

 Algae can be cultivated in environments unsuitable for conventional crops, thus not competing with food production. They also demonstrate higher energy density per harvest area and possess remarkable carbon sequestration abilities. Algae biofuels can utilize wastewater, contributing to pollution mitigation and sustainable waste management and could play a crucial role in reducing greenhouse gas emissions, supporting the goals. Their ability to thrive in nonarable environments and use nonpotable water sources presents a sustainable pathway for large-scale biofuel production.

 https://www.sciencedirect.com/science/article/pii/S2667370325000104

  natural pathways for microbial CO2 fixation, recent advancements in artificial CO2 fixation, and strategies for enhancing the efficiency of microbial CO2 fixation. We also discuss the conversion of CO2 into diverse metabolic products and high-value chemicals.

 


 https://www.sciencedirect.com/science/article/abs/pii/S2211926425001419

 algal cultivation systems, emphasizing their importance across biofuel production, wastewater treatment, carbon sequestration, and biotechnology. Through rigorous analysis of techniques such as stirring, aeration, and PBR design, this review underscores optimized mass transfer's pivotal role in enhancing algal productivity and technology scalability.

 https://www.pjoes.com/pdf-188699-120792?filename=Algae%20Windows_%20A%20Novel.pdf

 the algae window had the best energy savings
performance. The algae density had a small effect on
energy consumption. Nimish Biloria et al. [12] analyzed
the cost and profit of algae building technologies
and solar PV panels. A case study at a building at
the University of Technology Sydney, Australia, was
conducted. The closed tubular photobioreactors were
used for the algae system. Additionally, the use of
a closed tubular photobioreactor system increases the
return on investment and has a quicker payback time as
compared to a solar PV system. Cervera Sardá et al. [13]
examined the study of using algae windows for building
façades. The study obtained good results for energy
conservation, CO2 mitigation, and the ability to produce
biomass. Ghada Mohammad Elrayyes [4] stated that
the application of algae windows is an effective option
for green energy because of its potential to absorb CO2 ,
purify water, and generate oxygen. For this reason, it can
considerably reduce the electricity bill of a building and
improve air quality by absorbing CO2 and generating
oxygen in the building. Yaman et al. [14] studied the use
of building-integrated photobioreactors (PBRs) in Izmir,
Turkey. To investigate the performance of an algae
window on the south side of a building, a simulation was
carried out. The results showed that this type of façade
could significantly reduce the number of uncomfortable
hours in the building. Additionally, the excess daylight
was cut down due to the high concentration of algae
inside the window.
Together with the positive
influence on CO2 reduction through energy savings,
these innovative buildings are able to sequester more
than 7 thousand tons of CO2 a year,
consuming at a rate
of 5 g/ft 2 . Potential profits from the trade of biomass or
high value bioproducts, in addition to the utilization of
building waste, could help offset energy expenses.

 https://www.sciencedirect.com/science/article/abs/pii/S2211926425001547

 2) areas more strongly influenced by Sargassum beds will have higher C and N storage capacity; (3) Sargassum beds affect sediment carbon sequestrations through deterministic processes affecting sediment microbial community assembly

  Large organic matter inputs stimulated an increased abundance of functional genes associated with carbon and nitrogen catabolism in microorganisms, leading to further mineralization and decomposition of TOC and TN. Carbon sequestration was favored by reduced microbial activity in sediments farther from the Sargassum beds.

 https://www.frontiersin.org/journals/built-environment/articles/10.3389/fbuil.2025.1574582/abstract

 This study tested a microalgae photobioreactor-integrated window system using Chlorella and Chlorococcum. Our results indicated that Chlorella's daily yield in a microalgae window was 175 mg/L-day, while Chlorococcum's daily yield was 80 mg/L-day, which are consistent with the data published in the literature. These results demonstrate the viability of microalgae building enclosures for real-world carbon capture. The research suggests that a range of microalgae strains coupled with well-controlled growing environments has potential for cost-effective large scale carbon sequestration in the built environment; however, the combination of regulating ideal growing environmental conditions with the building energy efficiency of the microalgae enclosure system are areas of future research. Algal carbon sequestration, when combined with net-zero buildings, can address global warming and help sustainable urban development

https://agromorph.com/algae-for-a-cleaner-future-an-in-depth-look-at-phycoremediation/ 

 The microalga Chlorella vulgaris was used in open pond systems to assess its efficiency in pollutant removal. Raw dairy wastewater was pretreated, diluted, and introduced into the algal system under sunlight with proper aeration. Over a 16-day treatment period, significant reductions in pollutants were observed: 87% decrease in chemical oxygen demand (COD), 96% reduction in biological oxygen demand (BOD), and substantial removal of nitrates and phosphates. The process not only purified the wastewater but also generated valuable algal biomass, highlighting phycoremediation as a sustainable and efficient solution for nutrient-rich industrial effluents (Kumari, Kumar, Kothari, & Kumar, 2022).

 https://www.sciencedirect.com/science/article/abs/pii/S0959652625002203

 


 high carbon sequestration rate that is 2∼10 times higher than terrestrial forests (Eger et al., 2023;

https://www.nature.com/articles/s43247-025-02157-9 

 Here we demonstrate volcanic fertilization effects on a Late Triassic lacustrine ecosystem based on micropaleontological and geochemical records from the Yanchang Formation of North China. Frequent eruptions of a regional volcanic arc system increased cyanobacterial populations and organic carbon sinking fluxes, as recorded by extreme total organic carbon content (>30 wt.%) and positive organic carbon and negative nitrogen isotopic excursions. In turn, high levels of primary productivity induced intense water-column anoxia, facilitating preservation of organic matter. These findings underscore the potential influences of volcanism on ecological conditions, primary productivity, and carbon sequestration throughout geological history.

 https://www.mdpi.com/2071-1050/17/1/342

 basically algae mortar for corn stalk...

https://www.sciencedirect.com/science/article/abs/pii/S0141113624005038 

 Herbivores increase the long-term retention of macroalgal organic carbon.

 https://pubs.rsc.org/en/content/articlehtml/2025/va/d4va00247d

https://onlinelibrary.wiley.com/doi/full/10.1111/raq.70004 

 (MNC), comparing biocrust-covered and bare soils in the dryland ecosystem of the Loess Plateau. Amino sugars were used as indicators of soil microbial necromass, and environmental DNA sequencing was used to characterize multitrophic communities in soil samples. Biocrust-associated soils exhibited 2.5 times higher MNC than bare soils, with bacterial necromass carbon (BNC) constituting a larger proportion of soil organic carbon than fungal necromass carbon (FNC). Greater network complexity and more frequent within-trophic associations (WTAs) were observed for bare soils. The proportion of negative WTAs was negatively correlated with MNC, whereas the proportion of cross-trophic associations (CTAs) was positively correlated with MNC. Community composition, hierarchical interactions, and network complexity all shaped microbial necromass carbon accumulation. This study illustrates a novel mechanism contributing to carbon sequestration in dryland ecosystems

 https://www.taylorfrancis.com/chapters/edit/10.1201/9781003520498-5/algae-based-carbon-sequestration-pourya-bazyar-ehsan-sheidaee

 https://digibug.ugr.es/handle/10481/103221

 https://www.sciencedirect.com/science/article/abs/pii/S1001074224001979

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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