Cyanidation leaching, which discharges a great amount of cyanide tailings, is the predominant process to produce gold around the world. As toxic cyanides and heavy metals such as mercury and arsenic remain in cyanide tailings, they are extremely harmful to human beings and animals, and are classified as hazardous wastes in India. Nevertheless, the content of valuable metals such as gold and iron may be high in cyanide tailings.
Serious environmental risk is associated with mining wastes in a form of liquid and solid waste, which contain potentially toxic elements such as cadmium (Cd), copper (Cu), zinc (Zn), lead (Pb), chromium (Cr), arsenic (As), and vanadium (V). Among these environmental concerns are the solubilization of sulphides from pyritic mine tailings,
Most gold mine tailings are composed mainly of industrial sand (i.e., silica) and silica sand is best described as a granular material that is composed of majorly quartz and trace amounts of coal, clay, and other minerals. In some instances, it is referred to as either quartz or industrial sand and is widely applied in many engineering applications. When silica sand is present in metallic materials, it could serve as a source of crevice corrosion on such metals.
Silica
Silica sand used for water purification and manufacture of glass, synthetic foundry moulding catalysts, disodium ultramarine etc. it is also used for acid heat resistant ceramics, refractories, pottery glaze, enamel etc.
Iron
It is used to manufacture steel and used in civil engineering like reinforced concrete, girders etc. and make alloy steels like carbon steels with additives such as nickel, chromium, vanadium, tungsten, and manganese.
Copper
Presently, copper is used in building construction, power generation and transmission, electronic product manufacturing, and the production of industrial machinery and transportation vehicles. Copper wiring and plumbing are integral to the appliances, heating and cooling systems, and telecommunications links used every day in homes and businesses. Copper is an essential component in the motors, wiring, radiators, connectors, brakes, and bearings used in cars and trucks.
Precious Metals & PG Metals
It is used for Automotive and its suppliers, Chemical and petrochemical, Electronics, Glass industry, pharmaceutical, Fertilizer & Jewellery industry
Micronutrients
Micronutrients are essential plant nutrients that are found in trace amounts in tissue but play an imperative role in plant growth and development. Without these nutrients, plant nutrition would be compromised leading to potential declines in plant productivity.
STAR TRACE has a strong and highly experienced team of Project and Construction Managers with deep knowledge of the involved complexities and required procedures for managing EPC, EPCM, BOOT, BOOM services related to the mineral processing industries.
