Assessment and suitability for the dumping of flyash in an abandoned mine

Abstract

The acid mine water body has naturally occurred in the abandoned coal mine. An acid mine water body is the major problem of high sulfur coal mining areas that generate acidic water. The acidic mine water generated contains hazardous toxic elements in varying concentrations. Water samples have been collected from an abandoned mine (Gorbi). Flyash samples have been collected from the various thermal power plants of Singrauli Coalfield. The experiment has done at the laboratory scale. The water sample has been analyzed by analytical techniques, which are pH multiparameter equipment and ICP-ES. The Morphological, geochemical and mineralogical characterization of flyash has been done using available standard techniques SEM, XRF and XRD. The laboratory investigation of the pH value of flyash indicates this has appreciable neutralization potential and may effectively be used to neutralize acid water. This research has tried to develop a treatment method of acid mine water using flyash at a laboratory scale. This paper has suggested mitigation measures and how to control the pollutants so that the ecosystem of the area gets least disturbed by the associated mining activity. The purpose of studying is to assess their suitability for dumping in pit suffering from acid mine drainage.

Keywords

• Acid mine water body
• Fly ash
• Acid mine drainage
• Sophisticated instrument technique