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Production of a poly-alumino-iron sulphate coagulant by chemical precipitation of a coal mining acid drainage / J.C.S.S. Menezes in Minerals engineering, Vol. 23 N° 3 (Fevrier 2010) 

Public ISBD [article]  in Minerals engineering > Vol. 23 N° 3 (Fevrier 2010) . - pp. 249–251 Titre : Production of a poly-alumino-iron sulphate coagulant by chemical precipitation of a coal mining acid drainage Type de document : texte imprimé Auteurs : J.C.S.S. Menezes, Auteur ; R.A. Silva, Auteur ; I. S. Arce, Auteur Année de publication : 2011 Article en page(s) : pp. 249–251 Note générale : Génie Minier Langues : Anglais (eng) Mots-clés : Acid  rock  drainage  pH  control  Environmental  Recycling Résumé : The aim of this work was to produce a poly-alumino-iron sulphate coagulant from acidic coal mine drainage. Precipitating the iron and aluminium at pH 5.0, followed by dissolution in sulphuric acid, produced a coagulant consisting of 8.7% iron and 3.3% aluminium. Water treatment tests proved that this coagulant was as efficient as the coagulant chemicals conventionally used in water treatment plants. The process can be easily incorporated into conventional AMD treatment plants, thereby reducing sludge waste issues and producing a valuable chemical reagent. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509002866 [article] Production of a poly-alumino-iron sulphate coagulant by chemical precipitation of a coal mining acid drainage [texte imprimé] / J.C.S.S. Menezes, Auteur ; R.A. Silva, Auteur ; I. S. Arce, Auteur . - 2011 . - pp. 249–251. Génie Minier Langues : Anglais (eng) in Minerals engineering > Vol. 23 N° 3 (Fevrier 2010) . - pp. 249–251 Mots-clés : Acid  rock  drainage  pH  control  Environmental  Recycling Résumé : The aim of this work was to produce a poly-alumino-iron sulphate coagulant from acidic coal mine drainage. Precipitating the iron and aluminium at pH 5.0, followed by dissolution in sulphuric acid, produced a coagulant consisting of 8.7% iron and 3.3% aluminium. Water treatment tests proved that this coagulant was as efficient as the coagulant chemicals conventionally used in water treatment plants. The process can be easily incorporated into conventional AMD treatment plants, thereby reducing sludge waste issues and producing a valuable chemical reagent. DEWEY : 622 ISSN : 0892-6875 En ligne : http://www.sciencedirect.com/science/article/pii/S0892687509002866