NIOSHTIC-2 Publications Search
Evaluation of Agglomerated Tailings from Flotation Mills.
Proc 22nd Biennial Conf: The Inst for Briquetting & Agglomeration Gannon Univ 22:1-12
Mill tailings are commonly disposed by deposition in a tailings pond which dries into a body of fine particles. Old tailings ponds can be a source of dust pollution because the fine particles are easily scoured from the surface by the wind. Weathering of the minerals in the fine tailings may be rapid. If sulfidic components are present, incident precipitation may mobilize the contained metals in the acidic effluent. Disposal of tailings as backfill in mines will prevent dusting, but oxidation and subsequent metal mobilization may still occur. A means of alleviating these problems is to chemically and physically stabilize the tailings by agglomeration. The data presented in this paper was obtained by agglomerating sulfide flotation mill tailings with three concentrations of a binder. Chemical stability of agglomerates was quantified by acid consumption data. Agglomerate physical stability was characterized by wetting tests and resistance to point loading.
Proc 22nd Biennial Conf: The Inst. for Briquetting & Agglomeration; Gannon Univ., V 22, Pp 1-12
Page last reviewed: September 2, 2020Content source: National Institute for Occupational Safety and Health Education and Information Division