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The removal of sulphate ions from different types of wastewater is an environmental challenge faced by several industrial sectors, such as the mining, petrochemical or metallurgical industry. Sulphates and heavy metals represent one of the main pollution sources is industrial effluents such as acid mine drainage (AMD) and other mining effluents. Manufacturing processes, primarily mining activities, often result in the production of effluents containing high amounts of inorganic pollutants e.g. heavy metals or sulp...