vivianite محطم
Vivianite：性质、形成、地点 » 地质科学
2024年7月1日 它是一种相对稀有的矿物，通常因其深蓝色或蓝绿色而被识别，尽管它在风化或脱水时也可能呈现无色、白色、灰色或黄色。. “vivianite”这个名字源自其发现者约翰亨利维维
More
The occurrence, identification and environmental relevance of
2016年7月1日 In this article, we review the nature, occurrence and environmental relevance of the authigenic ferrous iron phosphate mineral vivianite (Fe 3 (PO 4) 2 8H 2 O) in waterlogged
More
Quantitative determination of vivianite in sewage sludge by a
2021年9月1日 Vivianite (Fe 3 (PO 4) 2 ⋅8H 2 O) is a potential phosphorus (P) recovery product from wastewater treatment plants (WWTPs).
More
Vivianite blues Nature Geoscience
2023年5月11日 Excavated bones, soils or sediments seemingly splashed with blue paint — archaeologists and geologists will immediately recognize the mineral vivianite, a hydrated
More
Rates and Mechanism of Vivianite Dissolution under Anoxic
2023年11月4日 The iron phosphate mineral vivianite Fe (II) 3 (PO 4) 2 8H 2 O has emerged as a potential renewable P source.
More
Vivianite : Properties, Formation, Localities » Geology Science
2024年7月1日 Vivianite is typically found in regions with specific geological conditions, primarily in wetland environments, swamps, bogs, and areas with iron-rich sediments. The mineral is
More
Vivianite formation and its contribution to phosphorus retention
Vivianite, Fe3(PO4)2 8 H2O, is a ferrous iron phosphate mineral which forms in wa-terlogged soils and sediments. The phosphorus (P) bound in its crystal lattice is con-sidered to be
More
Efficient formation of vivianite without anaerobic digester: Study in ...
2022年6月1日 It was recently discovered that vivianite (Fe 3 (PO 4) 2 .8H 2 O) could be magnetically extracted from digested activated sludge which opened a new route for
MoreEfficient phosphate recovery as vivianite: synergistic effect of iron ...
Vivianite is a promising phosphorus recovery solution that has the potential to simultaneously relieve phosphorus shortage and phosphorus pollution. By producing vivianite, dissimilatory
More
Vivianite blues Nature Geoscience
2023年5月11日 From Dutch painters to ocean sediments, Caroline Slomp discusses the role vivianite plays in the distribution of phosphorus, an essential nutrient for life.
More
The Vivid Blue Mineral That Grows on Buried Bodies
2016年10月25日 The Vivid Blue Mineral That Grows on Buried Bodies and Confuses Archaeologists Just mix together a dead person, some iron, and lots of water.
More
Vivianite Gemstone: Properties, Meanings, Value
2023年3月17日 Vivianite is a rare, fragile mineral known for being colorless at first but quickly darkening to deep blues and greens. Learn vivianite’s properties, prices, history, and meanings!
More
Significantly enhanced P release from vivianite as a fertilizer in ...
2022年9月1日 The use of vivianite (Fe3(PO4)2∙8H2O) as a slow-release P fertilizer in agriculture could be a promising way for the utilization of the recovered vivi
More
Efficient formation of vivianite without anaerobic digester: Study
2022年6月1日 More than 80% of the Fe in WAS was reduced after 3 days of anaerobic storage. • Vivianite formation in excess activated sludge quickly followed iron reduction.
More
Roles of humic acid on vivianite crystallization in heterogeneous ...
2022年9月20日 Vivianite crystallization serves as an intriguing alternative for phosphorus recovery from wastewater, while the impact of humic acid on this technolo
MoreVivianite Group: Mineral information, data and localities.
Monoclinic hydrated metal(II) arsenates and phosphates. Compare the related Symplesite Group.
More
Efficient phosphate recovery as vivianite: synergistic effect of
Vivianite is a promising phosphorus recovery solution that has the potential to simultaneously relieve phosphorus shortage and phosphorus pollution. By producing vivianite, dissimilatory iron reducing bacteria may substantially enhance the phosphate collection efficiency. The transformation of phosphate and
More
Phosphate Recovery from Aqueous Solutions via Vivianite
2023年1月23日 Vivianite (Fe3(PO4)28H2O) crystallization has attracted increasing attention as a promising approach for removing and recovering P from wastewaters. However, FeII is susceptible to oxygen with its oxidation inevitably influencing the crystallization of vivianite. In this study, the profile of vivianite crystallization in the
More
Vivianite Aids Goal Setting, Relieves Stress Burnout
Vivianite aids stress burnout. Helps physical emotional healing compassion via higher heart chakra. Aids goal setting, clearer communication intuition.
More
Vivianite: Meaning, Properties, and Benefits You
Discover everything you need to know about Vivianite, including Vivianite’s metaphysical properties, healing benefits, and what Vivianite symbolizes.
More
Vivianite - Wikipedia
La genesi è secondaria, può originarsi come minerale del cappellaccio di molti giacimenti a solfuri oppure per alterazione di fosfati primari nelle pegmatiti o ancora in depositi argillosi lacustri per azione di acque ricche di ferro su materiali organogeni fosfatici. È anche presente in depositi lignitici e di ferro sedimentario dei bacini di acqua dolce.
More
This Strange Mineral Grows on Dead Bodies And Turns Them Blue
2016年10月27日 Over a century later, White was exhumed because of land developments in the area. To the shock of everyone around, they found his body completely blue with large blue vivianite crystals forming all over him and inside the coffin. Here's what vivianite looks like on a piece of bone that was buried in sand:
More
First evidence of vivianite in human bones from a third
2021年6月1日 1. Introduction. Vivianite is a hydrated iron phosphate mineral (chemically, Fe (PO 4) 2 8H 2 O) which crystallizes in a monoclinic system. Colourless when unaltered, vivianite ranges from grey to indigo, green or dark blue when subjected to oxidation whereas, depending on its oxidation state, it ranges from a vitreous to a pearly lustre.
MoreVivianite precipitation for iron recovery from anaerobic
2022年6月15日 1. Introduction. The deep aquifers used for the production of drinking water are typically anaerobic and contain reduced iron (Fe 2+).The World Health Organization (WHO) recommends a maximum iron concentration of 0.3 mg/L in drinking water (World Health Organization, 2017), while concentrations in raw groundwater of 15 mg/L are not
More
Mercury Reduction by Nanoparticulate Vivianite
2021年2月8日 Mercury (Hg) is a toxic trace element of global environmental concern which has been increasingly dispersed into the environment since the industrial revolution. In aquatic and terrestrial systems, Hg can be reduced to elemental Hg (Hg0) and escape to the atmosphere or converted to methylmercury (MeHg), a potent neurotoxin that
More
BG - Vivianite formation in methane-rich deep-sea sediments
Abstract. Phosphorus is often invoked as the ultimate limiting nutrient, modulating primary productivity on geological timescales. Consequently, along with nitrogen, phosphorus bioavailability exerts a fundamental control on organic carbon production, linking all the biogeochemical cycles across the Earth system. Unlike nitrogen that can be microbially
More
Raman and infrared spectroscopic study of the vivianite-group ...
2018年7月5日 The molecular structure of the three vivianite-structure, compositionally related phosphate minerals vivianite, baricite and bobierrite of formula M 3 2+ (PO 4) 2.8H 2 O where M is Fe or Mg, has been assessed using a combination of Raman and infrared (IR) spectroscopy. The Raman spectra of the hydroxyl-stretching region are complex with
More
Vivianite — Wikipédia
La vivianite est un minéral phosphaté de formule Fe 3 (P O 4) 2 •8(H 2 O).On le trouve en tant que minéral secondaire dans de nombreux environnements géologiques. Elle se présente généralement sous forme de cristaux prismatiques ou écrasés, de couleur variant du bleu foncé au bleu-vert. Elle prend une teinte foncée sous l'action de l'oxygène.
More
Competitive incorporation of Mn and Mg in vivianite at varying
2023年4月1日 Table 1. Synthesis conditions of 19 different vivianites, initial aqueous chemical speciation conditions for two key species (MgHPO 4 and MgCl +) and saturation indices with respect to vivianite.For all syntheses, 25 mM Fe 2+ and 58.75 mM PO 4 3− were present. Mn 2+ was added in form of a MnCl 2 solution and Mg 2+ was added
More