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Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 9, doi: 10.1007/s11783-023-1707-z

Abstract:

● EPS immobilizes U(VI) via adsorption, bioreduction and desorption.

Keywords： Adsorption     Bioreduction     Desorption     Kinetics     Isotherm     Uranium    

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Research progress of adsorptive technology in processing wastewater with low concentration of uranium

Gao Junkai,Gu Ping,Zhang Guanghui,Gao Xin,Hou Li´an

Strategic Study of CAE 2014, Volume 16, Issue 7,   Pages 73-78

Abstract:

In this paper some characteristics of uranium in aqueous solution andprogress in recent years on adsorption technologies in treatment wastewater with low concentration of uranium

Keywords： radioactive wastewater     uranium     adsorption     zero-valent Iron    

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Situation and Development Prospect of Uranium Resources Exploration in China

Zhang Jindai,Li Youliang,Jian Xiaofei

Strategic Study of CAE 2008, Volume 10, Issue 1,   Pages 54-60

Abstract:

History of uranium exploration and the general situation of identifieduranium resources in China are introduced briefly in the paper, the feature of uranium resources isIn accordance with the fact that the exploration level of uranium resources is quite low in China, itnatural uranium from nuclear power sector.According to the exploration ability and uranium resources potential in China, it is believed that uranium

Keywords： uranium resources     exploration     potentiality     prospect    

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Oxidative leaching kinetics of molybdenum-uranium ore in H

T. A. Lasheen, M. E. El-Ahmady, H. B. Hassib, A. S. Helal

Frontiers of Chemical Science and Engineering 2013, Volume 7, Issue 1,   Pages 95-102 doi: 10.1007/s11705-013-1317-6

Abstract: The processing of molybdenum-uranium ore in a sulfuric acid solution using hydrogen peroxide as an oxidantUnder these experimental conditions, the extraction efficiency of molybdenum was about 98.4%, and the uranium

Keywords： leaching of molybdenum     leaching of uranium     kinetics    

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Microbial communities biostimulated by ethanol during uranium (VI) bioremediation in contaminated sediment

Mary Beth LEIGH,Wei-Min WU,Erick CARDENAS,Ondrej UHLIK,Sue CARROLL,Terry GENTRY,Terence L. MARSH,Jizhong ZHOU,Philip JARDINE,Craig S. CRIDDLE,James M. TIEDJE

Frontiers of Environmental Science & Engineering 2015, Volume 9, Issue 3,   Pages 453-464 doi: 10.1007/s11783-014-0721-6

Abstract: Stable isotope probing (SIP) was used to identify microbes stimulated by ethanol addition in microcosms containing two sediments collected from the bioremediation test zone at the US Department of Energy Oak Ridge site, TN, USA. One sample was highly bioreduced with ethanol while another was less reduced. Microcosms with the respective sediments were amended with C labeled ethanol and incubated for 7 days for SIP. Ethanol was rapidly converted to acetate within 24 h accompanied with the reduction of nitrate and sulfate. The accumulation of acetate persisted beyond the 7 d period. Aqueous U did not decline in the microcosm with the reduced sediment due to desorption of U but continuously declined in the less reduced sample. Microbial growth and concomitant C-DNA production was detected when ethanol was exhausted and abundant acetate had accumulated in both microcosms. This coincided with U(VI) reduction in the less reduced sample. C originating from ethanol was ultimately utilized for growth, either directly or indirectly, by the dominant microbial community members within 7 days of incubation. The microbial community was comprised predominantly of known denitrifiers, sulfate-reducing bacteria and iron (III) reducing bacteria including , , , and others, including the known U(VI)-reducing bacteria A , and The findings suggest that ethanol biostimulates the U(VI)-reducing microbial community by first serving as an electron donor for nitrate, sulfate, iron (III) and U(VI) reduction, and acetate which then functions as electron donor for U(VI) reduction and carbon source for microbial growth.

Keywords： Stable isotope probing (SIP)     ethanol     acetate     uranium reduction     sediment     bioremediation    

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Synthesis of graphene oxide nanoribbons/chitosan composite membranes for the removal of uranium from

Xuewen Hu, Yun Wang, Jinbo Ou Yang,Yang Li, Peng Wu, Hengju Zhang, Dingzhong Yuan, Yan Liu, Zhenyu Wu, Zhirong Liu

Frontiers of Chemical Science and Engineering 2020, Volume 14, Issue 6,   Pages 1029-1038 doi: 10.1007/s11705-019-1898-9

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Comparison between two commercial uranium resins and a uranyl sulphate imprinted resin based on self-assembling

LIU Yaochi, XU Wei, XU Weijian, LIU Hanmao, ZHANG Xiaowen

Frontiers of Chemical Science and Engineering 2007, Volume 1, Issue 4,   Pages 327-331 doi: 10.1007/s11705-007-0059-8

Abstract: imprinted ion-exchange based on self-assembling molecular imprinting technology and two kinds of commercial uranium

Keywords： saturation     molecular imprinting     imprinting technology     adaptability     commercial    

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Progress in the Research of Surface Corrosion Resistance of Uranium and Plutonium Metals

Fu Yibei,Wang Xiaolin,Zhu Zhengru

Strategic Study of CAE 2000, Volume 2, Issue 12,   Pages 59-65

Abstract:

It has been received considerable attention for surface corrosion resistance of uranium and plutoniumThe surface chemical behavior and compatibility of uranium metal and U3O8 in theWhile uranium and plutonium placed in CO atmosphere the oxidation rate of uranium was studied gravimetricallypotential energy function, the corresponding spectroscopic data, thermodynamic and dynamic data of uranium

Keywords： uranium     plutonium     surface chemistry     relativistic effective core potential (PECP)    

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Development and Prospect of China Uranium Mining and Metallurgy

Que Weimin,Wang Haifeng,Niu Yuqing,Zhang Feifeng,Gu Wancheng

Strategic Study of CAE 2008, Volume 10, Issue 3,   Pages 44-53

Abstract:

The development of industry of uranium mining and metallurgy in Chinahas been reviewed generally, emphasizing investigation approaches and application levels of uraniumexisted, also considering the specific features of deposit resources, the development orientation of uraniumThe industry of China uranium mining and metallurgy is faced to new opportunity of development and challengein 21th century, and the only way to realize sustainable development of uranium mining and metallurgy

Keywords： uranium mining     in-situ leaching     heap leaching     extraction     purification     development    

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Sustainable Development of Chinses Nuclear Power

Zhao Renkai

Strategic Study of CAE 2000, Volume 2, Issue 10,   Pages 33-41

Abstract: development, and several problems commonly concerned with Chinese nuclear power development, such as uranium

Keywords： nuclear energy     uranium resources     nuclear safety     radioactive westes     localization    

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Stress-related ecophysiology of members of the genus

Om Prakash, Stefan J. Green, Pooja Singh, Puja Jasrotia, Joel E. Kostka

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 2, doi: 10.1007/s11783-020-1315-0

Abstract: strains of R. denitrificans, strains 2APBS1T and 116-2, tolerate low to circumneutral pH (4–8), high Uranium

Keywords： Rhodanobacter     Uranium     Nitrate     Metals     Stress tolerance    

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Core designing of a new type of TVS-2M FAs: neutronics and thermal-hydraulics design basis limits

Saeed GHAEMI, Farshad FAGHIHI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 256-278 doi: 10.1007/s11708-018-0583-x

Abstract: One of the most important aims of this study is to improve the core of the current VVER reactors to achieve more burn-up (or more cycle length) and more intrinsic safety. It is an independent study on the Russian new proposed FAs, called TVS-2M, which would be applied for the future advanced VVERs. Some important aspects of neutronics as well as thermal hydraulics investigations (and analysis) of the new type of Fas are conducted, and results are compared with the standards PWR CDBL. The TVS-2M FA contains gadolinium-oxide which is mixed with UO (for different Gd densities and U-235 enrichments which are given herein), but the core does not contain BARs. The new type TVS-2M Fas are modeled by the SARCS software package to find the PMAXS format for three states of CZP and HZP as well as HFP, and then the whole core is simulated by the PARCS code to investigate transient conditions. In addition, the WIMS-D5 code is suggested for steady core modeling including TVS-2M FAs and/or TVS FAs. Many neutronics aspects such as the first cycle length (first cycle burn up in terms of MW d/kgU), the critical concentration of boric acid at the BOC as well as the cycle length, the axial, and radial power peaking factors, differential and integral worthy of the most reactive CPS-CRs, reactivity coefficients of the fuel, moderator, boric acid, and the under-moderation estimation of the core are conducted and benchmarked with the PWR CDBL. Specifically, the burn-up calculations indicate that the 45.6 d increase of the first cycle length (which corresponds to 1.18 MW d/kgU increase of burn-up) is the best improving aim of the new FA type called TVS-2M. Moreover, thermal-hydraulics core design criteria such as MDNBR (based on W3 correlation) and the maximum of fuel and clad temperatures (radially and axially), are investigated, and discussed based on the CDBL.

Keywords： TVS-2M FAs     core design basis limits     VVER-1000     analysis     mixture of uranium-gadolinium oxides fuels     thermal-hydraulics    

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Development Strategy of Nuclear Energy Mineral Resources

Zhang Jindai , Li Ziying , Su Xuebin , Tan Yahui , Li Shengxiang , Su Yanru , Li Jianhua , Deng Ping , Xu Lechang , Pan Ziqiang

Strategic Study of CAE 2019, Volume 21, Issue 1,   Pages 113-118 doi: 10.15302/J-SSCAE-2019.01.016

Abstract:

Nuclear energy mineral resources refer to uranium resources and thoriumAt present, it mainly refers to uranium resources.With an unbalanced global distribution, the supply and demand of the uranium resources will inevitablytechnological innovation projects and major application demonstration projects; build a number of 1000-ton uranium

Keywords： nuclear energy mineral resources     uranium resources     indicator system    

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Title Author Date Type Operation

Contributions of adsorption, bioreduction and desorption to uranium immobilization by extracellular polymeric

Journal Article

Research progress of adsorptive technology in processing wastewater with low concentration of uranium

Gao Junkai,Gu Ping,Zhang Guanghui,Gao Xin,Hou Li´an

Journal Article

Situation and Development Prospect of Uranium Resources Exploration in China

Zhang Jindai,Li Youliang,Jian Xiaofei

Journal Article

Oxidative leaching kinetics of molybdenum-uranium ore in H

T. A. Lasheen, M. E. El-Ahmady, H. B. Hassib, A. S. Helal

Journal Article

Microbial communities biostimulated by ethanol during uranium (VI) bioremediation in contaminated sediment

Mary Beth LEIGH,Wei-Min WU,Erick CARDENAS,Ondrej UHLIK,Sue CARROLL,Terry GENTRY,Terence L. MARSH,Jizhong ZHOU,Philip JARDINE,Craig S. CRIDDLE,James M. TIEDJE

Journal Article

Synthesis of graphene oxide nanoribbons/chitosan composite membranes for the removal of uranium from

Xuewen Hu, Yun Wang, Jinbo Ou Yang,Yang Li, Peng Wu, Hengju Zhang, Dingzhong Yuan, Yan Liu, Zhenyu Wu, Zhirong Liu

Journal Article

Comparison between two commercial uranium resins and a uranyl sulphate imprinted resin based on self-assembling

LIU Yaochi, XU Wei, XU Weijian, LIU Hanmao, ZHANG Xiaowen

Journal Article

Progress in the Research of Surface Corrosion Resistance of Uranium and Plutonium Metals

Fu Yibei,Wang Xiaolin,Zhu Zhengru

Journal Article

Development and Prospect of China Uranium Mining and Metallurgy

Que Weimin,Wang Haifeng,Niu Yuqing,Zhang Feifeng,Gu Wancheng

Journal Article

Sustainable Development of Chinses Nuclear Power

Zhao Renkai

Journal Article

Stress-related ecophysiology of members of the genus

Om Prakash, Stefan J. Green, Pooja Singh, Puja Jasrotia, Joel E. Kostka

Journal Article

Core designing of a new type of TVS-2M FAs: neutronics and thermal-hydraulics design basis limits

Saeed GHAEMI, Farshad FAGHIHI

Journal Article

Development Strategy of Nuclear Energy Mineral Resources

Zhang Jindai , Li Ziying , Su Xuebin , Tan Yahui , Li Shengxiang , Su Yanru , Li Jianhua , Deng Ping , Xu Lechang , Pan Ziqiang

Journal Article