Groundwater uranium stabilization by a metastable hydroxyapatite
Laura N. Lammers,Hope Rasmussen,David Adilman,Jamie L. deLemos,Peter Zeeb,Douglas G. Larson,Andrew N. Quicksall +6 more
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TLDR
In this article, a metastable form of hydroxyapatite (mHAP) derived from fish bone was used for in-situ remediation of groundwater uranium contamination via the precipitation of uranyl phosphate (U-P) minerals.About:
This article is published in Applied Geochemistry.The article was published on 2017-09-01 and is currently open access. It has received 21 citations till now. The article focuses on the topics: Groundwater remediation & Environmental remediation.read more
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Utilization of nanomaterials for in-situ remediation of heavy metal(loid) contaminated sediments: A review
TL;DR: This review summarizes recent studies that have used various nanomaterials such as nanoscale zero-valent iron (nZVI), stabilizer-modified nZVI, nano apatite based-materials including nano-hydroxyapatite particles (nHAp), carbon nanotubes (CNTs), and titanium dioxide nanoparticles (TiO2 NPs) for the remediation of heavy metal(loid) contaminated sediments.
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Removal of U(VI) from nuclear mining effluent by porous hydroxyapatite: Evaluation on characteristics, mechanisms and performance
Minhua Su,Daniel C.W. Tsang,Xinyong Ren,Shi Qingpu,Jinfeng Tang,Hongguo Zhang,Lingjun Kong,Li'an Hou,Gang Song,Diyun Chen +9 more
TL;DR: The findings demonstrate that the porous HAP can effectively remediate uranium contamination and holds great promise for environmental applications.
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Hydroxyapatite derived from food industry bio-wastes: Syntheses, properties and its potential multifunctional applications
Soo-Ling Bee,Z.A. Abdul Hamid +1 more
TL;DR: The concept of transforming bio-waste into hydroxyapatite is not only promising in addressing the environmental issues caused by waste disposal but also creating an economic opportunity to manufacture products required for pharmaceutical and environmental-related industries.
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Graphene oxide functionalized with nano hydroxyapatite for the efficient removal of U(VI) from aqueous solution
Minhua Su,Liu Zequan,Wu Yanhong,Hairong Peng,Tao Ou,Shuai Huang,Gang Song,Lingjun Kong,Nan Chen,Diyun Chen +9 more
TL;DR: The GO/HAP composite has an outstanding sorption capacity for U(VI) and is most likely ascribed to the synergistic effect after functionalizing with nano HAP, which may greatly facilitate the creation of rational design strategies to develop highly efficient materials that can treat radioactive wastewater.
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Uranium removal from mining water using Cu substituted hydroxyapatite
Stéphanie Szenknect,Adel Mesbah,Michael Descostes,Abdoulaye Maihatchi-Ahamed,Laura Bonato,Malvina Massonnet,Yannis Ziouane,Evelyne Vors,Thomas Vercouter,Nicolas Clavier,J. Lautru,Nicolas Dacheux +11 more
TL;DR: It appeared that the main interest for using Cu-Hap is to enlarge the domain of water compositions for which the precipitation of meta-torbernite, (H3O)0.4Cu0.8(UO2)2(PO4)2·7.6 H2O is the predominant mechanism associated to the uranium removal, especially for pH > 6.7 where carbonate uranium species are predominant.
References
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Sequential extraction procedure for the speciation of particulate trace metals
TL;DR: In this paper, an analytical procedure involving sequential chemicai extractions was developed for the partitioning of particulate trace metals (Cd, Co, Cu, Ni, Pb, Zn, Fe, and Mn) into five fractions: exchangeable, bound to carbonates, binding to Fe-Mn oxides and bound to organic matter.
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Microbial reduction of uranium
TL;DR: In this article, dissimilatory Fe(III)-reducing microorganisms can obtain energy for growth by electron transport to U(VI), which can be much faster than commonly cited abiological mechanisms for reduction.
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Chemical thermodynamics of uranium
TL;DR: The NEA-TDB data base system as discussed by the authors is used for the extraction of the NEA TDB data set and its associated auxiliary data sets, such as ammonium, oxide, hydride and hydroxide species.
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Calcium orthophosphates: crystallization and dissolution.
Lijun Wang,George H. Nancollas +1 more
TL;DR: Some important parameters related to crystal nucleation and growth/dissolution including the supersaturation/undersaturation, pH, ionic strength and the ratio of calcium to phosphate activities are discussed.
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Enzymatic iron and uranium reduction by sulfate-reducing bacteria
TL;DR: The potential for sulfate-reducing bacteria (SRB) to enzymatically reduce Fe(III) and U(VI) was investigated in this paper, showing that these metals may be preferred electron acceptors at the low H2 concentrations present in most marine sediments.