To evaluate the impact of uranium tailings on soil composition and soil microbial, six soil samples at different distance from the uranium tailings (Beishan City, China) were collected for further analysis. Concentrations of radionuclides (U and Th), heavy metals (Mn, Cd, Cr, Ni, Zn, and Pb) and organochlorine pesticide were determined by ICP-MS and GC, they were significantly higher than those of the control. And the Average Well Color Development as well as the Shannon, the Evenness, and the Simpson index were calculated to evaluate the soil microbial diversity. The carbon utilization model of soil microbial community was also analyzed by Biolog-eco. All results indicated that uranium tailings leaded to excessive radionuclides and heavy metals, and decreased the diversity of the soil microbial community. Our study will provide a valuable basis for soil quality evaluation around uranium tailing repositories and lay a foundation for the management and recovery of uranium tailings.
In this research, we focus our attention on the leaching peculiarity of uranium-containing Mg-Al layered double hydroxide (LDH) which is one kind of waste sediment in uranium tailings, generated by the alkalinization of uranyl raffinate. The effect of inorganic (CO, SO, PO) and organic (CO, CHO, CHOP) anions were investigated. Atomic force microscopy result showed that the thickness of CO-LDH increased to 8.
The study looked at the dangers of radiation and acid pollution from fine coal waste stored in big piles called tailings dams.
It found that this fine coal waste has levels of uranium and thorium that are higher than what is normally found around the world.
The tests showed that there might be a risk from radiation, and that acid drainage (which is bad for the environment) can happen or not happen in the same place.
One reason arid and semi-arid environments have been used to store waste is due to low groundwater recharge, presumably limiting the potential for meteoric water to mobilize and transport contaminants into groundwater. The U.S.
Objective: This study evaluates the impact of radioactive uranium waste storage facilities on cancer occurrence in nearby areas.
Methods: Current research evaluates the effect of radioactive uranium waste storage facilities on cancer epidemiology in nearby areas. The critical area had Aqsu, Kvartsitka, Zavodskoy and Stepnogorsk cities, which are located at a less than 5 km distance to the south of the Hydrometallurgical Plant tailings dump while the control group had Akkol region in 90 km from the source.
Jiangxi Province Key Laboratory of Functional Organic Polymers, East China University of Technology, Nanchang 330013, Jiangxi, China. Electronic address:
Photocatalysis has emerged as a extremely promising green technology for the treatment of uranium-containing wastewater. This study focuses on the fabrication of TiCT/CdZnS composites with Schottky junctions through the in-situ growth of CdZnS on TiCT nanosheets, enabling efficient photoreduction of U(VI) without the requirement of sacrificial agents. The results demonstrate that the TiCT/CdZnS composites achieve remarkable 99.
