One of the main responsibilities of gold ore processing plants is to consider the safe, economical treatment and disposal of tails that remain after the ore has been processed in the plant. Tails are composed of two parts, solid and liquid and the cost of treatment has an impact on the operation for two reasons, protect the environment and show all people the right management of the operation in all aspects. Basically, the treatment is influenced by several factors such as metallurgical process, local topography, and water pollution laws.
In this way, the process employed to recover gold from an ore determines the physical properties and characteristics of the tailings and is a key factor to be considered in the planning of disposal facilities. Nowadays, processing operations generate different types of tailings, with variable particle size distribution and chemical toxicity. Probably, the trend to treat ores with low gold content produces greater volumes of wastes and the enhanced land values in the vicinity of industrial plants prevent the former practice of spreading wastes laterally and force the expansion of waste deposits.
Schematic flowsheet of plant, tailings dam and water treatment plant
Tailings Dam | Embankment Systems | Tailings Properties | Liquefaction | Effluents with Cyanide | Cyanide Detoxification | Cyanide Recovery | Caro's Acid Preparation | Decomposition of Caro's Acid | Caro's Acid and Cyanide Destruction