Heavy metal pollutions of soil is one of the serious problems in the mining tailing areas, therefore, it is significant to estimate heavy metal of soil in the mining tailing areas. This research take Jinduicheng Mo mining tailings, Huaxian, Shaanxi Province as the study area. A total number of 288 soil samples collected at the mining tailing areas. And the heavy metal concentrations of Pb in so...

Mining activities specifically Coal have been long testified to be one of the major contributing factors environmental crisis, with Acid Mine Drainage (AMD) as leading indicators. The purpose this study was assess potential AMD generation from neutralized coal mining tailings. In order achieve ultimate objective study, analysis chemical composition and mineral content tailings using XRF (X-Ray ...

Tailing of DNA with terminal transferase is a technically demanding, but essential step in full-length cDNA cloning procedures*•^. It is also an essential step of a poly(dA) affinity labelling technique, which has been used to select families of partial restriction fragments on oligo(dT)cellulose^•*. In order to bypass the need for transferase in the latter technique, we made a simple modificat...

Rare earth mine tailing dumps are environmental hazards because tailing easily leaches and erodes by water and wind. To assess the influence of mine tailing on the geochemical behavior of rare earth elements (REEs) in soil, sixty-seven surface soil samples and three soil profile samples were collected from different locations near China's largest rare earth mine tailing. The total concentration...

Non-specific tail sequences are often added to the 5'-terminus of primers to improve the robustness and overall performance of diagnostic assays. Despite the widespread use of tailed primers, the underlying working mechanism is not well understood. To address this problem, we conducted a detailed in vitro and in silico analysis of the enhancing effect of primer tailing on 2 well-established foo...

RFID (Radio-Frequency IDentification) is a key emerging technology for supply-chain monitoring and detection of counterfeit and grey-market goods. The most prevalent RFID tags are, however, simply “wireless barcodes,” themselves vulnerable to cloning and counterfeiting. While continuous monitoring can, in principle, detect cloning attacks, real-world supply chains often contain significant blin...

In this research study, we focus on the tree test results as well first-order kinetic model to evaluate flotation data propose a conceptual design of circuit for specific coal sample. Results from showed it was possible achieve product with ash content less than 10% 8% combustible recovery and indicated sample, obtain low – condition. Kinetic some streams had same constant, so could combine sim...

Workability is a key performance criterion for mining cemented tailing backfill, which should be defined in terms of rheological parameters such as yield stress and plastic viscosity. Cemented tailing backfill is basically composed of mill tailings, Portland cement, or blended cement with supplementary cement material (fly ash and blast furnace slag) and water, among others, and it is important...

Changes in the tailing properties (increasing clay mineral content and fine particles) and poor operation of the dewatering systems have negative impacts on the Tailing Storage Facilities (TSF) of the Shahrbabak copper complex. The design solid concentration of the thickened tailings is 63 wt.% in the Shahrbabak paste plant but it is well below the design value right now (approx. 55 wt.%). The ...

The inevitable depletion of mineral resources, the constant deterioration of the geological and mining conditions for the development of mineral deposits and the restoration of raw materials from mining waste by recycling are all urgent problems we face today. The solution to this problem may ensure: a considerable extension of raw material source; decrease of investments in opening new deposit...