METHOD OF DETERMINING THE AMOUNT OF COAL MINE DUST EMISSION

摘要

Every mine in India has to formulate an Environmental Impact Assessment (ELA) report to obtain environmental clearance from the Govt Air pollution is considered to be one of the most important parameters in an ELA report. However, there is no well-defined method for determining the amount of dust generation due to different mining activities, which ultimately increases the air pollution level. Increasing trend of opencast (OC) coal mining leads to release huge amount of dust A search into technical literature reveals that no such work has been reported in Indian context Because of site-specific nature, emission factors developed for one site may not give the correct results for another site This invention reports a noble method for the determination of dust emission due to opencast coal mining For the applications of this invention one large opencast coal project of Bharat Coking Coal Ltd. (BCCL) was investigated. The main sources of air pollution were identified. The rate of emission per unit of a given activity known as an emission factor was utilized, taking local factors into account Emission of dust due to topsoil removal, overburden (OB) removal;, extraction of coal, size reduction, wind erosion were estimated and the amount of dust emission due to all the activities are quantified. They cause air pollution in the work zone and surrounding locations. This original invention for the development of methodology for the determination of dust emission is of fundamental in nature. The significance of this invention for the protection of environment is immense and it is having wide applications in determining emission of dust due to mining activities.