Sulphate removal technologies for the treatment of mine
This paper presented a high-level comparison of four sulphate removal processes that have relevance, particularly in the South African mining context, namely reverse osmosis, ettringite …
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Heavy Metal Pollution from Gold Mines: Environmental Effects …
Bio-oxidation of sulphide contained in refractory gold ores enhances liberation of gold particles from the sulphide matrix thereby rendering the gold amenable to dissolution using lixiviants …
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Using ferrous sulfate to treat tailings in gold mines
The tailings of gold mines contain a large amount of cyanide. However, the ferrous ions in ferrous sulfate can react chemically with the free cyanide in the tailings, and generate ferrous cyanide …
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Gold Mining Industry Environmental Pollution Types and Effects
concentrations of sulphate, iron and manganese, raised levels of toxic metals such as cadmium, cobalt, copper, molybdenum, zinc and possibly radionuclides [3].
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Sulphate removal technologies for the treatment of mine
This paper presents a high-level comparison of four sulphate removal technologies, namely reverse osmosis, ettringite precipitation, barium carbonate addition, and biological …
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The problems caused by iron sulphate presence in
The pH constantly drifts downwards due to the slow consumption of lime by basic iron sulphate, which leads to the formation of HCN gas, and creates an unsafe working …
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Challenges and opportunities in the removal of sulphate ions in
It was observed that the final sulphate concentration heavily depended on the barium hydroxide dosage. The process was carried out with two types of mine water, namely …
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A REVIEW OF SULFATE REMOVAL OPTIONS FOR MINE …
Sulfate control in mine waters primarily follows one of two methodolo-gies; (1) Removal through membrane separation of salts from water; (2) Removal of sulfate by salt precipitation through …
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Sulphate in Mining Wastewater – A Question of Mass
Sulphate is a common by-product found in mine impacted water that is increasingly on the regulatory radar as a contaminant of concern. Unlike metal contaminants such as …
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Sulphate removal technologies for the treatment of …
This paper presents a high-level comparison of four sulphate removal technologies, namely reverse osmosis, ettringite precipitation, barium carbonate addition, and biological sulphate reduction.
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Immobilization of sulfates and heavy metals in gold mine tailings …
Activation of sulfidic gold mine tailings with Ca(OH) 2 and 10–25% of GGBFS can effectively stabilize sulfates and arsenic that are the most problematic elements in these …
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