Qualitative Study of Sangrood Coal Wastes and Management Solution Offered

In this research, an environmental investigation of Sangrood coal mine was conducted according to the studies of mine waste of mines number one, two, three, five, and the waste left from the processing plant. The environmental hazards of abandoned solid waste left mainly in a confined space adjacent to the margins of openings tunnel and transfer associated with the seasonal runoff and, finally, deposit in the downstream estuary of Shahrood River and the lake of Sefidrood dam were studied. To resolve this problem the possibility of using waste in the manufacturing of construction materials was studied. It was found that the best product of homogeneous composition could be brick. Through the construction of laboratory brick samples and tests conducted on their physical and mechanical properties it was determined that the bricks produced have acceptable quality standards. Finally, By using the " Extra investment" method in order to undertake economic analysis, the economic feasibility of using coal gangue as raw material for the production of bricks, was demonstrated. Finally, it was determined that the profit per ton of bricks produced is equal to 3100 Rials.