12 hasil untuk "Mathilde Hagens"
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Artikel Jurnal Teks lengkap
Ocean Alkalinity, Buffering and Biogeochemical Processes
Alkalinity, the excess of proton acceptors over donors, plays a major role in ocean chemistry, in buffering and in calcium carbonate precipitation and dissolution. Understanding alkalinity dynamics is pivotal to quantify ocean carbon dioxide uptake during times of global change. Here we review…
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Enhanced weathering and biochar co-deployment boosts CO2 sequestration through changing soil properties
Enhanced rock weathering (ERW) and biochar are potentially effective and scalable options for large-scale carbon dioxide removal (CDR), required to limit global temperature rise to 1.5 °C. Here we present experimental data on their co-deployment, an urgent and novel research direction that may…
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Assessment of the enhanced weathering potential of different silicate minerals to improve soil quality and sequester CO2
Enhanced weathering is a negative emission technology that involves the spread of crushed silicate minerals and rocks on land and water. When applied to agricultural soils, the resulting increase in soil pH and release of nutrients may co-benefit plant productivity. Silicate minerals and rocks…
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Aqueous matrix and limiting factors in steel slag carbonation under elevated CO2 at ambient conditions
Abstract Alkaline industrial by-products have significant potential for permanent CO2 sequestration, but their reaction kinetics and controlling factors are often overlooked. This study examined the direct aqueous carbonation of basic oxygen furnace (BOF) slag in a slurry setup with continuous…
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Accounting for retarded weathering products in comparing methods for quantifying carbon dioxide removal in a short-term enhanced weathering study
Various approaches are currently used to quantify the carbon dioxide removal (CDR) associated with enhanced weathering (EW), which involves amending soils with crushed silicate minerals. We aimed to contribute to the development of a standardized procedure for CDR quantification by complementing…
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Alive and dead earthworms capture carbon during mineral weathering through different pathways
Abstract Enhanced rock weathering aims at capturing atmospheric carbon dioxide as inorganic carbon, while potentially stabilizing soil organic carbon. However, the role of soil biota in this process remains underexplored. Earthworms, being key soil engineers, may impact carbon dynamics both when…
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Microbial dissolution of Gran Canaria lapilli in small-scale flow through columns: carbon dioxide removal potential
Abstract Carbon dioxide removal technologies are urgently needed to stay within the 2 °C warming limit. This study evaluated Gran Canaria lapilli and a commercially available lava basalt as feedstocks for bio-weathering in flow-through columns inoculated with Aureobasidium pullulans, Suillus…
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Pyrogenic carbon and carbonating minerals for carbon capture and storage (PyMiCCS) part II: organic and inorganic carbon dioxide removal in an Oxisol
Enhanced rock weathering (ERW) and pyrogenic carbon capture and storage (PyCCS, or “biochar carbon removal”) are two promising carbon dioxide removal (CDR) techniques that can contribute to soil restoration. These technologies can be combined by co-application of rock powder and biochar or by…
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Organic carbon source controlled microbial olivine dissolution in small-scale flow-through bioreactors, for CO2 removal
Abstract The development of carbon dioxide removal methods, coupled with decreased CO2 emissions, is fundamental to achieving the targets outlined in the Paris Agreement limiting global warming to 1.5 °C. Here we are investigating the importance of the organic carbon feedstock to support silicate…
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Machine learning-based identification of key biotic and abiotic drivers of mineral weathering rate in a complex enhanced weathering experiment [version 3; peer review: 1 approved, 2 approved with reservations]
Background The optimization of enhanced mineral weathering as a carbon dioxide removal technology requires a comprehensive understanding of what drives mineral weathering. These drivers can be abiotic and biotic and can interact with each other. Therefore, in this study, an extensive 8-week column…
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Artikel Jurnal
Machine learning-based identification of key biotic and abiotic drivers of mineral weathering rate in a complex enhanced weathering experiment [version 2; peer review: 1 approved, 2 approved with reservations]
Background The optimization of enhanced mineral weathering as a carbon dioxide removal technology requires a comprehensive understanding of what drives mineral weathering. These drivers can be abiotic and biotic and can interact with each other. Therefore, in this study, an extensive 8-week column…