某含铀排土场Radoniów铀回收研究

IF 0.7 4区 物理与天体物理 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Nukleonika Pub Date : 2021-11-25 DOI:10.2478/nuka-2021-0017
Katarzyna Kiegiel, O. Roubinek, D. Gajda, P. Kalbarczyk, Grażyna Zakrzewska-Kołtuniewicz, A. Chmielewski
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引用次数: 0

摘要

摘要:本文报道了用生物浸出法从波兰开采后的铀矿堆中回收铀的可能性。研究采用Radoniów堆中含铀矿物材料质量为570 kg的排土堆浸出模型,在工作体积为80 dm3的周期生物反应器中进行机械混合和充氧。被检测材料中的铀浓度约为百万分之800。在这个过程中,使用了从旧矿山分离的微生物联合体。它由以下微生物组成:芽孢杆菌、假单胞菌、鞘单胞菌、硫杆菌、盐硫杆菌、硫单胞菌和土刺菌。反应器中铀的生物浸出效率为98%,排土堆浸出率为70%。浸出后溶液中含有大量的铀离子,通过两个阶段进行分离:(1)离子色谱法,然后(2)两步沉淀法。得到的溶液是重铀酸铵的来源,是黄饼(氧化铀)的前体。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Studies on uranium recovery from a U-bearing Radoniów Dump
Abstract This work reports the possibility of uranium recovery from a post-mining uranium ore dump in Poland by a bioleaching method. The studies were conducted on the dump leaching model with the mass of 570 kg of uranium bearing mineral material from Radoniów pile and in the periodic bioreactor with a work volume of 80 dm3 and with mechanical mixing and aeration of the charge. The uranium concentration in the examined material was about 800 ppm. In this process, the consortium of microorganisms isolated from former mines was used. It was composed of the following microorganisms: Bacillius, Pseudomonas, Sphingomonas, Thiobacillus, Halothiobacillus, Thiomonas, and Geothrix. The efficiency of the uranium bioleaching process was 98% in the reactor, and a yield of 70% was obtained in the dump leaching model. The post-leaching solution contained significant amounts of uranium ions that were separated in two stages: (1) by ion chromatography and then (2) by a two-step precipitation method. The resulting solution was a source of ammonium diuranate, the precursor of yellowcake (uranium oxides).
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来源期刊
Nukleonika
Nukleonika 物理-无机化学与核化学
CiteScore
2.00
自引率
0.00%
发文量
5
审稿时长
4-8 weeks
期刊介绍: "Nukleonika" is an international peer-reviewed, scientific journal publishing original top quality papers on fundamental, experimental, applied and theoretical aspects of nuclear sciences. The fields of research include: radiochemistry, radiation measurements, application of radionuclides in various branches of science and technology, chemistry of f-block elements, radiation chemistry, radiation physics, activation analysis, nuclear medicine, radiobiology, radiation safety, nuclear industrial electronics, environmental protection, radioactive wastes, nuclear technologies in material and process engineering, radioisotope diagnostic methods of engineering objects, nuclear physics, nuclear reactors and nuclear power, reactor physics, nuclear safety, fuel cycle, reactor calculations, nuclear chemical engineering, nuclear fusion, plasma physics etc.
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