Huraian
Coal mining activities generates huge amount of effluent containing various pollutants. These pollutants are discharged into surrounding water body, thereby polluting it. Major pollutants from coal mining effluents are total suspended solids (TSS), total dissolved solids (TDS), hardness, heavy metals (Fe, Cr, Cd, Cu, Ni, Mn), sulphates, nitrates, phosphates, oil and grease, chloride. When discharged into the aquatic ecosystem, it affects the system.