reprocessing mine tailings to control acid rock drainage

Mine Tailings Disposal Methods

Mine Tailings Disposal Methods. Previous Next. Table of Contents. Mining Coal Tailings Disposal ... and subsequent formation of acid drainage, have been investigated on an experimental basis. Sealants which have been investigated include sodium silicate, sodium silicate plus aluminate, and carbonate bonding. ... Mine Drainage Control and ...

STANDARD GUIDANCE (COP 37) Tailings and Waste Rock

of sulphidic tailings and related acid drainage. Submarine tailings disposal is sometimes used in very site-specific conditions, for example where land based disposal would cover lands with very high biodiversity, economic or cultural value, for materials with high acid rock drainage risk, and/or in areas where rugged topography, high rainfall

Mining Flashcards | Quizlet

becomes contaminated with acid mine drainage. It not only pollutes the groundwater, but also pollutes the stream next to it and kills fish. When the desired metal is removed from ore, waste materials are piled up in what are called the tailings. The amount of tailings a mining operation produces far outweighs the amount of usable

Acid mine drainage - Wikipedia

Acid mine drainage, acid and metalliferous drainage (AMD), or acid rock drainage (ARD) is the outflow of acidic water from metal mines or coal mines.. Acid rock drainage occurs naturally within some environments as part of the rock weathering process but is exacerbated by large-scale earth disturbances characteristic of mining and other large construction activities, usually within rocks ...

Reprocessing of mining waste: combining environmental ...

carbonates (Juillot et al., 1999), acid mine drainage (AMD) – also called acid rock drainage – is generated. A worldwide estimate assumes that about 20,000 km of river and 70,000 ha of lake and reservoir areas are seriously damaged by acidic mine effluent (Johnson and Hallberg, 2005). The control and mitigation of AMD

Mend | Default

Acidic drainage is the largest environmental liability facing the Canadian and international mining industry. Since 1989, the Mine Environment Neutral Drainage (MEND) program has worked to develop technologies to prevent and control acidic drainage.

Waste rock and tailings – Waihi Gold

This rock is referred to as potentially acid forming (PAF) rock. Waste rock without the potential to form acid drainage is referred to as non acid forming (NAF) waste rock. Special design and operational procedures are used to control acid drainage generation. As a contingency, provision is made to collect and treat any fluid that is generated.

INTEGRATED ACID ROCK DRAINAGE MANAGEMENT AT THE …

INTEGRATED ACID ROCK DRAINAGE MANAGEMENT AT THE PHU KHAM COPPER GOLD OPERATION IN LAO PDR Stuart Miller1, ... progressively over the mine's life utilising selected waste rock from the mine and borrow from ... legacy from waste rock and tailings at Phu Kham.

CONTROL OF ACID ROCK DRAINAGE FROM MINE TAILINGS …

CONTROL OF ACID ROCK DRAINAGE FROM MINE TAILINGS THROUGH THE ADDITION OF DISSOLVED ORGANIC CARBON by Paul John Sturman A dissertation submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Engineering MONTANA STATE UNIVERSITY Bozeman, Montana November 2004

Acid Mine Drainage - an overview | ScienceDirect Topics

Although acid mine drainage is the most common impact of mining on water quality, the variety of mineral geology is such that there is no single-characteristic mine water. The term "mine-impacted water" is used because it is more inclusive than terms such as acid mine drainage (AMD) or acid rock drainage (ARD).

Mine Waste Transfer and Disposal Methods - Mine Tailings ...

Mine Tailings. Tailings are finely ground rocks and other mineral waste as a result of mineral processing. Due to the way minerals are processed, tailings can contain concentrations of processing chemicals. This can make mine tailings an environmental …

Reprocessing Tailings Dams – A systematic Approach (Part 1)

Apr 02, 2014· Millions of tonnes of sulphide tailings are produced each year from base metal and gold flotation operations. Of these tailings a substantial amount is stored in tailings dams of which an example is shown in Figure 1. These tailings invariably contain sulphides which have potential to cause acid mine drainage (AMD).