What is colliery spoil?

Colliery spoil consists of material from the sedimentary strata adjacent to the coal seams, waste produced from the sinking of shafts and other works, dirt, and fragments of coal. If washery waste has been deposited, the residues of the chemicals used in the washing process may also be found.

What is mining waste?

Mine wastes are a broad group of waste materials resulting from the extraction of metals and non-metals. The wastes include solid, as well as liquid waste, and can be inert or can contain hazardous constituents. In general, mine waste consists of high volume, low toxicity wastes (EPA, 1985).

What is coal mine waste?

Coal refuse (also described as coal waste, slag, coal tailings, waste material, culm, boney, or gob) is the material left over from coal mining, usually as tailings piles or spoil tips.

How is mine waste disposed?

By far, the major fraction of mining waste such as waste rock are disposed of in heaps (or piles) at the source. Coarse coal refuse is typically removed from the preparation plant and disposed of in large piles or banks.

How are mining waste disposed?

The major portion of the waste rock is disposed of in piles at the source. The coarse coal refuse is removed from the preparation plant and disposed of in large piles or banks. The tailings are disposed of through pond storage, dry sacking, into underground workings, or in the ocean.

What is a colliery slag heap?

Some of the worst types of derelict land in the United Kingdom are associated with disused collieries, of which spoil heaps are the most conspicuous. Spoil heaps consist of coarse colliery discard, in other words run-of-mine waste extracted during coal mining operations.

What is tip in mining?

A spoil tip (also called a boney pile, culm bank, gob pile, waste tip or bing) is a pile built of accumulated spoil – waste material removed during mining. These waste materials are typically composed of shale, as well as smaller quantities of carboniferous sandstone and other residues.

How do you dispose of mine waste?

Traditionally, the disposal method of tailing is to pump tailing slurry or transmit the dry tailing to tailings storage facility (TSF). And the construction of TSF costs money, especially land. Comprehensive utilization of solid waste resources is an important disposal method of solid waste from mines.

How is mining waste disposed?