Transcription of Treatment of Sulphate in Mine Effluents - INAP
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Treatment of Sulphate in Mine Effluents - INAP
Treatment of Sulphatein Mine EffluentsOctober 2003 LORAXENVIRONMENTAL EXECUTIVE SUMMARY i Executive Summary In the Treatment of Acid Rock Drainage (ARD) little attention has focused on the mitigation of dissolved Sulphate ; this may be attributed to its lower environmental risks and regulatory standards when compared to those for acidity and dissolved metals. However, regulatory agencies are becoming increasingly concerned over elevated Sulphate concentrations in Effluents owing largely to its impact to the salinity of receiving waters. This concern will like result in more stringent regulatory standards for Sulphate in effluent such that Sulphate Treatment becomes necessary. Although Sulphate Treatment is currently under investigation and in many cases in practice, comparatively little information has been documented. In light of this, the International Network for Acid Prevention (INAP) has decided to investigate the current state of the art of Sulphate Treatment .
EXECUTIVE SUMMARY SULPHATE TREATMENT TECHNOLOGIES iv Inap LORAX • For the removal of sulphate from mine water, the limestone/lime process (as pretreatment), the SAVMIN process, the GYP-CIX process and biological sulphate
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