The gasification of an aqueous suspension of lignite from Alexandria coalfield (Ukraine) under the supercritical pressure was studied. The initial rates of the formation of hydrogen, carbon dioxide and methane were evaluated. The mutually stimulating interaction of the components of "brown coal-water-mineral matter" system was shown due to the influence of nanoscaled water medium on the formati...

Faults are the most critical tectonic factors in geological structures, which have major economic impacts on mining economics. Thus it is necessary to understand faults in order to identify the actual risks and complications associated with mining. In the preliminary investigation of the Sonda-Jherruck coalfield, 3D geological modeling was not performed. The purpose of this work was to perform ...

The working paper describes a study which aims to examine and evaluate local community responses to environmental degradation, and factors assisting or hampering local involvement in neighbourhood environmental renewal in two Durham coalfield communities in the UK, an area characterised by high levels of unemployment, poverty, poor health and environmental degradation. A postal survey and focus...

Effective gas management is vital to the success of the longwall mining in the Bulli seam, in the Southern Coalfield, Sydney Basin, NSW, Australia. The evolution of gas drainage methods and practices are discussed with respect to gas type, gas drainage lead time and prevailing geological conditions. Both underground to inseam drilling and surface to inseam drilling techniques are described at b...

Underground coal fires in fields endanger the mine surface ecological environment, resources, threaten safety and workers’ health, cause geological disasters. The study of methods by which to monitor laws that determine way underground spread is helpful safe production smooth execution fire extinguishing projects. Based on night-time ASTER thermal infrared images 2002, 2003, 2005 2007 Huangbaic...

Hulun Buir Grassland is a world-famous natural pasture. The Chenbalhu Banner coalfield, the hinterland of grassland, located on west slope Great Khingan Mountains and north bank Hailar River in China. proven geological reserves coal are 17 billion tons. plays role ecological barrier, regional industry, power transmission from to east south. proportion local groundwater irrigation, domestic indu...