Hydrothermal sulfidation of biogenic magnetite produces framboid …

Biogenic magnetite is a potential biosignature for microbial iron cycling in hydrothermal sulfide systems, critical environments for unraveling the emergence and early evolution of life. However ...

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Formation of iron oxide apatite deposits

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Phosphorus Vacancies that Boost Electrocatalytic Hydrogen …

Phosphorus vacancies have been created and their boosting effect to alkaline electrocatalytic HER is demonstrated. The nickel phosphide with phosphorus vacancies exhibits outstanding HER activity, kinetics, and stability that even outperform the Pt/C benchmark.

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Formation of magnetite-(apatite) systems by crystallizing …

Magnetite-(apatite) ore deposits are interpreted as being formed by the crystallization of iron-rich ultrabasic melts, dominantly generated by the interaction of silicate melts with oxidized P-F-SO4-bearing sedimentary rocks. This hypothesis is supported by geologic evidence, experimental studies, numerical modeling, stable and radiogenic isotope …

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Phosphorus removal and magnetic separation using …

Phosphorus is an eutrophication agent for aquatic environment. An adsorption method is used for phosphorus removal; however, solid–liquid separation of adsorbent and the limit of adsorption …

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Phosphorus

Phosphorus is most commonly found in nature in its pentavalent form in combination with oxygen, as phosphate (PO43-). Phosphorus (as phosphate) is an essential constituent of all known protoplasm and its content is quite …

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Phosphorus dynamics and sustainable agriculture: The role of …

Phosphorus (P) is a crucial macronutrient that plants require in high amounts. It plays an essential role in forming DNA, generating ATP and NADPH (in catabolic processes), and influencing photosynthesis, respiration, and protein synthesis rates (Kumar and Mohapatra, 2021).One of the roles of P-solubilizing microorganisms is to break down non-solubilizing …

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Estimating the Effect of Magnetite on Nitrogen and Phosphorus …

This study investigated the effectiveness of magnetite as ballast material through a technology called BioMag in nitrogen and phosphorus removal and in processing peak flows at …

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Drivers of the global phosphorus cycle over geological time

Of this modern weathered phosphorus flux, rivers deliver 2.8 ± 0.2 × 1010 mol year−1 dissolved phosphorus and 20 ± 6 × 1010 mol year−1 reactive particulate phosphorus to the ocean, where ...

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Phosphorus: What It's For, Where It's Found, and Diet Benefits

Phosphorus deficiency can happen if you have alcohol use disorder, a blood acid condition called diabetic ketoacidosis, or certain inherited disorders. A shortage can also occur in cases of ...

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Phosphorus vacancies improve the hydrogen …

Although molybdenum phosphide (MoP) has attracted increasing attention as an electrocatalyst in the hydrogen evolution reaction (HER), it is still worth exploring an effective approach to further improve the HER activities of MoP. To date, …

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Low-Cost Efficient Magnetic Adsorbent for Phosphorus Removal …

Adsorption using magnetic adsorbents makes the phosphorus removal from water simple and efficient. However, most of the reported magnetic adsorbents use chemically …

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Formation of iron oxide–apatite deposits

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The Global Phosphorus Cycle

Phosphorus is an essential nutrient for all life forms. It is a key player in fundamental biochemical reactions (Westheimer, 1987) involving genetic material (DNA, RNA) and energy transfer (ATP), and in structural support of organisms provided by membranes (phospholipids) and bone (the biomineral hydroxyapatite). Photosynthetic organisms utilize dissolved phosphorus, carbon, …

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Heat Storage | Sustainable Energy Storage with …

Sustainable energy storage with Magnetite Sustainable and efficient use of energy is a very actual and important topic. The mineral magnetite (Fe 3 0 4) contributes to this challenge as it can store energy in a very sustainable way. …

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Efficient and sustainable phosphate removal and recovery from

To address both the removal and recycling of phosphate efficiently and cost-effectively, a Zn isomorphically substituted magnetite (Zn-Fe 3 O 4) was synthesized by incorporating Zn (II) …

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Phosphorus

Phosphorus is most commonly found in nature in its pentavalent form in combination with oxygen, as phosphate (PO 4 3−). Phosphorus (as phosphate) is an essential constituent of all known protoplasm and its content is quite uniform across most plant and animal tissues.

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Phosphorus and Magnesium – Comparison – Properties

Phosphorus. Phosphorus is an essential plant nutrient (the most often limiting nutrient, after nitrogen), and the bulk of all phosphorus production is in concentrated phosphoric acids for agriculture fertilisers, containing as much as 70% to 75% P2O5. The vast majority of phosphorus compounds mined are consumed as fertilisers.

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Phosphorus doped magnetic biochar activated PMS for effective

In addition, the surface elemental compositions of the different catalysts are further analyzed using energy dispersive X-ray spectroscopy (EDX), and the iron and phosphorus contents of Fe 2 P@BC-700 are 1.13 % and 0.52 %, respectively, indicating that ferrite and phosphorus species are successfully introduced into the catalysts (Fig. S1).

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Magmatic immiscibility and the origin of magnetite-(apatite) iron

The origin of magnetite-(apatite) iron deposits (MtAp) is one of the most contentious issues in ore geology with competing models that range from hydrothermal to magmatic processes. Here we report ...

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If you need to limit phosphorus

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Immobilization of non-point phosphorus using stabilized magnetite

Laboratory batch and column experiments were conducted to investigate the immobilization of phosphorus (P) in soils using synthetic magnetite nanoparticles stabilized with sodium …

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Phosphorus Removal and Recovery from Wastewater …

Study results showed that magnetite has a great potential for phosphorus removal because of its high efficiency, especially at low concentrations of input phosphorus. It was also...

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Phosphate Blood Test: Purpose, High vs. Low vs. Normal Levels

Here's where things get tricky: When it comes to testing, phosphorus is sometimes called phosphate and vice versa. Don't let all those "ph-ph" words confuse you.

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Efficient and regenerative phosphate removal from wastewater …

Using magnetite-based nanocomposite adsorbents to remove and recycle phosphate from wastewater is crucial for controlling eutrophication and ensuring the …

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A critical review of soil phosphorus dynamics and biogeochemical

Phosphorus deficiency is a common limitation to crop growth in many regions worldwide (Barber et al., 1963).Soil P levels range from 100 to 3000 mg kg −1 soil (0.01–0.3%) (Condron et al., 2005), with organic P constituting 30–65% of the total P, depending on soil organic matter content (Harrison, 1987).The soil solution typically contains P concentrations …

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001024: Phosphorus

Causes of low phosphorus: (Hypophosphatemia may occur with or without phosphate depletion. Serum levels vary as much as 2.0 mg/dL during the day.) Very severely malnourished subjects may have low phosphate levels, but even in starvation, phosphorus levels usually are normal.

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Phosphorus and proton magnetic resonance spectroscopy

Combined phosphorus and proton magnetic resonance spectroscopic imaging in the mesostriatal region was performed in 16 early and 13 advanced patients with Parkinson's disease and compared to 19 age-matched controls at 3 Tesla. In the putamen and midbrain of both Parkinson's disease groups, we found a bilateral reduction of high-energy ...

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Phosphorus magnetic resonance spectroscopy (31P MRS) in

Phosphorus magnetic resonance spectroscopy monitors muscle energy metabolism by recording the ratio of phosphocreatine to inorganic phosphate at rest, during exercise, and during recovery from exercise. In mitochondrial diseases, abnormalities may appear during some or all these phases. Low phosphoc …

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Lightning strikes as a major facilitator of prebiotic phosphorus

To estimate the amount of reduced phosphorus created by each strike, we assume that the average rock fulgurite is 250 g 16,47 with average phosphorus contents between 0.0065 wt% P (komatiites) and ...

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