Mine Water

mine water

[′mīn ‚wȯd·ər]
(mining engineering)
Water pumped from mines.

Mine Water


(pit water), subterranean or surface water that enters mining excavations and undergoes physicochemical changes during mining operations. Mine water is produced when subterranean waters of various horizons mix and interact with the mine atmosphere and the rocks uncovered by mining excavations. In its chemical composition and total mineralization, mine water differs from the subterranean water surrounding the mine. This is due to oxidation of the mine water, leaching of rocks, change in gas and bacterial composition, and the pollution of mine water by petroleum products and oils.

The excavations of operating mines are usually flooded. The water flow varies greatly—from tens to several thousands of cu m per hour—depending on the nature of the rocks composing the deposit and the proximity of surface water drainage. For example, in regions of fissured and karst limestones, the flooding of mines may reach several thousand cu m per hr.

The composition of mine water depends on the type of mineral being mined and the depth of the deposit. In coal deposits, for example, when deposits of sulfurous coals and pyrites are being worked, an acid water is often produced that is highly corrosive to metals and concrete. In deposits of complex ores, the water is often enriched by copper, zinc, and lead. The temperature and total mineralization of mine water increase as mine depth increases. Under certain conditions, the temperature of the water is anomalously high because the mining excavations release subterranean water from great depths. Water inflow to segments being worked is reduced by a water drawdown system. This improves the organization of extraction and excavation-cutting operations, increases labor productivity, and keeps subterranean fresh water from becoming polluted. Before disposal, mine water undergoes preliminary purification through the use of purification equipment. The proper designing of purification equipment requires knowledge of not only the expected water inflow but also the composition of the mine water; detailed exploration work must therefore be done to predict the quality of mine water.


Izuchenie gidrogeologicheskikh i inzhenerno-geologicheskikh uslovii pri razvedke i osvoenii mestorozhdenii tverdykh poleznykh iskopaemykh (Metodicheskoe rukovodstvo). Moscow, 1969.
Dokukin, A. V., and L. Dokukina. Vozniknovenie kislotnykh rudnichnykh vod i bor’ba s nimi. Moscow-Leningrad, 1950.
Nazarova, L. N., G. S. Konovalov, and A. G. Kobilev. “K voprosu o roli biogennogo faktora v formirovanii khimicheskogo sostava shakhtnykh vod Donetskogo basseina.” In Gidrokhimicheskie materiafy, vol. 43. Leningrad, 1967.


References in periodicals archive ?
Tenders are invited for Monitoring - Mine water protection - measures of PK, sp - phase I
And following in the footsteps of Heerlen in the Netherlands, he explained, coal mine water could be used to heat buildings and reduce reliance on fossil fuels.
InCounty Durham, researchers at the Durham Energy Institute believe they can use the coal mine water to heat a minimum of 100,000 homes.
DMT reported it prepared a feasibility study for the optimization of mine water management in Kriwoi Rog, Ukraine, as part of the Program to Support the Green Modernization of the Ukrainian Economy.
"Two of our most successful innovation projects are at Cwm Rheidol and at Frongoch, and we recently took the opportunity to share our results with our partners in tackling mine water pollution."
It will be the first scheme on this scale in the UK and will use existing radiators to heat homes without mine water ever entering residents' properties.
Subsequently, more and more practical methods appeared and began to be used for probability assessing of the coal mine water inrushes.
The aim of this study was to determine harsh mine water and time effects on shaft lining materials.
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A separate mine water treatment scheme upstream of the site, is allowing the Ebbw Fach river to run clear again for the first time in more than a hundred years and new birch and oaks are also planted.
The coal authority (tca) wishes to appoint a contractor to provide a replacement telemetry system for the mine water treatment schemes (mwts) it owns and manages.
to use the nitrification process (known at SMC as the "bug plant") to treat mine water and remove ammonia from its water stream.

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