Asse II salt mine, in Germany, contains low and intermediate-level radioactive waste that must be retrieved the upcoming years. Potentially contaminated salts brines will require treatment, with 137Cs being main contaminant. Cs+ is problematic to selectively recover due its chemical similarity Na+ K+ which are present high quantities a mine. This paper offers novel solution for separation from ...

Knowledge of the probable origin and behaviour of arsenic certainly gives valuable insights into the potential for transfer in the environment and of the risks involved in mining sites. Sequential extraction analyses are common experiments often used to study the origin and behaviour of potentially toxic elements. The method, however, presents some deficiencies, including labor-intensive proced...

We propose a new method of feature extraction that allows to apply pattern-recognition abilities of neural networks to data-mine automated proofs. We propose a new algorithm to represent proofs for first-order logic programs as feature vectors; and present its implementation. We test the method on a number of problems and implementation scenarios, using three-layer neural nets with backpropagat...

This paper aims at reducing greenhouse gas emissions, which contributes to carbon neutrality, and, the same time, preventing mine heat disasters and extracting highly mineralized (HM) water, so as realize synergy between CO2 storage (CS) geothermal extraction utilization (GEU) in a high temperature (HT) goaf. With this purpose, an innovative CS-GEU technology for HT HM water deep is proposed, b...

With the explosive growth of information sources available on the World Wide Web, it has become increasingly difficult to identify the relevant pieces of information, since web pages are often cluttered with irrelevant content like advertisements, navigation-panels, copyright notices etc., surrounding the main content of the web page. Hence, tools for the mining of data regions, data records an...

Robust and highly accurate position estimation in underground mines is investigated by considering a vehicle equipped with 2D laser scanners. A survey of available methods to process data from such sensors performed focus on feature extraction methods. Pros cons the usage different for positioning application are highlighted, suitable identified. Three state-of-the-art adapted scenario predefin...

Seasonal storage and extraction of heat in legacy coal mines could help decarbonize the space heating sector many localities. The modelled evolution a conceptual mine-water thermal scheme is analysed this study, involving cyclical an enclosed underground mine. Conductive transport simulations are performed 3D model flooded room-and-pillar panel, based on typical mine layouts, to quantify maximu...

The paper deals with the subject of rehabilitation and mechanical modernization extraction plant within mining operation salt mine from Slanic Prahova region. serves 23 August shaft Unirea mine, also this has been converted into a tourist mine. installation consists in change cutting wheels tower due to excessive degradation, requiring redesign under strict conditions, extension saline water sy...