作者机构：
[张晓文; 李密; 张彪; 黄婧] School of Environment Protection and Safety Engineering, University of South China, Hengyang, 421001, China;[丁德馨; 叶勇军] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China;[张晓文; 李密] Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang, 421001, China
通讯机构：
Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
作者机构：
[冯永富; 胡淼; 赵维超; 胡南; 丁德馨] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
通讯机构：
Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
作者机构：
[李广悦; 王浩; 丁德馨; 李峰; 喻清; 胡南] Key Discipline Laboratory of Defense Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China;[喻清] School of Resources and Safety Engineering, Central South University, Changsha, 410083, China
通讯机构：
Key Discipline Laboratory of Defense Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构：
Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
摘要：
The endophyte Pseudomonas sp. XNN8 was separated from Typha orientalis which can secrete indole-3-acetic acid and 1-aminocyclopropane-1-carboxylate deaminase and siderophores and has strong resistance to uranium it was then colonized in the Syngonium podophyllum; and the S. podophyllum-Pseudomonas sp. XNN8 symbiotic purification system (SPPSPS) for uranium-containing wastewater was constructed. Afterwards, the hydroponic experiments to remove uranium from uranium-containing wastewater by the SPPSPS were conducted. After 24 days of treatment, the uranium concentrations of the wastewater samples with uranium concentrations between 0.5 and 5.0 mg/L were lowered to below 0.05 mg/L. Furthermore, the uranium in the plants was assayed using Fourier transform infrared spectroscopy (FTIR) and extended X-ray absorption fine structure (EXAFS) spectroscopy. The Pseudomonas sp. XNN8 was found to generate substantial organic groups in the roots of the Syngonium podophyllum, which could improve the complexing capability of S. podophyllum for uranium. The uranium in the roots of S. podophyllum was found to be the uranyl phosphate (47.4 %) and uranyl acetate (52.6 %).
作者机构：
[李广悦; 刘玉龙; 丁德馨; 王有团; 胡南] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China;[马亮; 刘玉龙] CGNPC Uranium Resources Co., Ltd., Beijing, 100029, China
通讯机构：
Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构：
Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
摘要：
选用富含铁的火山岩型铀矿石,对其进行微波预处理,然后,在常温常压下进行搅拌浸出.考察微波预处理浸出铀的效果,并比较微波预处理前后矿物粒度、硫酸浓度、液固比、搅拌时间对浸出率的影响.结果表明:微波预处理后,硫酸的消耗量未增加,浸出所需时间缩短,矿物粒度较大时仍能获得相对较好的浸出率;与对照组相比,铀浸出率有所提高,微波预处理该铀矿石可行.微波预处理后,该铀矿石最佳的浸出工艺条件为矿物粒度-150μm、硫酸浓度20 g/L、液固比3L/kg、搅拌时间9 h.
作者机构：
[杨雨山; 喻清] School of Resources and Safety Engineering, Central South University, Changsha, China;[杨雨山; 丁德馨; 喻清; 胡南] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
通讯机构：
Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
摘要：
The anaerobic microcosms amended with 30 mM bicarbonate and without bicarbonate were established, respectively, and the reduction of U(VI) in the microcosms by functionalized indigenous microbial communities was investigated. Results of the chemical extraction and XANES analysis showed that the proportions of U(IV) in the microcosms amended with bicarbonate were 10 % lower than without bicarbonate at day 46. The amount of Cellulomonadaceae, Desulfovibrionaceae, Peptococcaceae and Veillonellaceae amended with bicarbonate was lower than without bicarbonate, so the reduction of U(VI) was less. The experimental results show that the high concentration bicarbonate has a significantly inhibitory effect on the reduction of U(VI).
作者机构：
[肖德涛; 张宇轩] School of Nuclear Science and Technology, University of South China, Hengyang, 421001, China;[钟永明; 江俊廷; 谢超] School of Environment Protection and Safety Engineering, University of South China, Hengyang, 421001, China;[丁德馨] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China;[叶勇军] School of Environment Protection and Safety Engineering, University of South China, Hengyang, 421001, China, Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
通讯机构：
[Ye, Y.] S;School of Environment Protection and Safety Engineering, University of South China, Hengyang, China
作者机构：
[李密; 戴士祥; 黄婧; 张晓文; 张彪] School of Environment Protection and Safety Engineering, University of South China, Hengyang, Hunan, 421001, China;[丁德馨] Key Discipline Laboratory for National Defense for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, Hunan, 421001, China;[李密; 张晓文] Key Laboratory of Radioactive Waste Treatment and Disposal, University of South China, Hengyang, Hunan, 421001, China
通讯机构：
School of Environment Protection and Safety Engineering, University of South China, Hengyang, Hunan, China
作者机构：
[杨雨山; 喻清] School of Resources and Safety Engineering, Central South University, Changsha, 410083, China;[杨雨山; 喻清; 丁德馨; 胡南] Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, 421001, China
通讯机构：
Key Discipline Laboratory for National Defence for Biotechnology in Uranium Mining and Hydrometallurgy, University of South China, Hengyang, China
