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Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced...

Date post: 01-Apr-2015
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Mining and Water Mining and Water Oil-shale is the most Oil-shale is the most valuable mineral in valuable mineral in Estonia. Estonia. For years people have For years people have produced energy from produced energy from oil-shale. Energy oil-shale. Energy for getting light for getting light and warmth: first and warmth: first lamp-oil, then fuel lamp-oil, then fuel oil, now oil, now electricity- a electricity- a universal energy universal energy source. source.
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Page 1: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Mining and WaterMining and Water

Oil-shale is the most Oil-shale is the most valuable mineral in valuable mineral in Estonia.Estonia.

For years people have For years people have produced energy produced energy from oil-shale. Energy from oil-shale. Energy for getting light and for getting light and warmth: first lamp-oil, warmth: first lamp-oil, then fuel oil, now then fuel oil, now electricity- a universal electricity- a universal energy source.energy source.

Page 2: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Estonian Oil-shaleEstonian Oil-shale

► The determined mining of oil-shale has beenThe determined mining of oil-shale has been extended over 80 years and more than 900 million tons have been excavated.

► Oil-shale is raw material for fossil fuel and chemical industry. Oil-shale is raw material for fossil fuel and chemical industry. By dry distillation a lot of oil is produced. Gas and some By dry distillation a lot of oil is produced. Gas and some sulphur compounds can be produced from oil-shale.sulphur compounds can be produced from oil-shale.

► Oil-shale is taken for an energetic Oil-shale is taken for an energetic

ressource in more than 50 countries,ressource in more than 50 countries,

but only some of them,including but only some of them,including

Estonia, have mineral deposits Estonia, have mineral deposits

worth of mining.worth of mining.

Page 3: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Mines and Opencasts in Ida-ViruMines and Opencasts in Ida-Viru

► Estonia MineEstonia Mine► Viru MineViru Mine► Aidu OpencastAidu Opencast► Narva OpencastNarva Opencast

Page 4: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Mining- Positive and NegativeMining- Positive and Negative

► POSITIVEPOSITIVE*good incomes*good incomes*producing warmth *producing warmth and electricity and electricity

► NEGATIVENEGATIVE*polluting *polluting environmentenvironment*reduced *reduced subsoilwater, subsoilwater, empty underground empty underground

Page 5: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Dangers in Mining AreasDangers in Mining Areas

When underground is empty after excavating,the ground starts When underground is empty after excavating,the ground starts sinking.Consequences: fields and valleys with waving surface and sinking.Consequences: fields and valleys with waving surface and unexpectably appearing deep holes on roads and fields.unexpectably appearing deep holes on roads and fields.

Building houses there is impossible,which is obstructing for developing Building houses there is impossible,which is obstructing for developing communities.communities.

In Ida-Viru County such communities are called oil-shale communities. In Ida-Viru County such communities are called oil-shale communities. Illuka is one of them.Illuka is one of them.

On the territory of Illuka there are 2 mines: Estonia and Ahtme (Ahtme is On the territory of Illuka there are 2 mines: Estonia and Ahtme (Ahtme is closed).closed).

Page 6: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Mining and Subsoil WaterMining and Subsoil Water

►Because of mining oil-shale, the Because of mining oil-shale, the surface level of subsoil water has surface level of subsoil water has lowered.lowered.

►Oil-shale mining pollutes subsoil water. Oil-shale mining pollutes subsoil water. ►Excavating 1 ton oil-shale needs 10-15 Excavating 1 ton oil-shale needs 10-15

tons of water pumped out from the tons of water pumped out from the ground.ground.

Page 7: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

The Level of Subsoil waterThe Level of Subsoil water

►During the mining the water level During the mining the water level lowers.lowers.

►When mining is completed, the closed When mining is completed, the closed mines become filled with water and mines become filled with water and the level of subsoil water possibly can the level of subsoil water possibly can be restored,but this is not certain. be restored,but this is not certain.

Page 8: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

Wells on Mining TerritoriesWells on Mining Territories

►Wells in many households are empty Wells in many households are empty because of mining workbecause of mining work

►New 38 m deep artesian wells are dug New 38 m deep artesian wells are dug ►When the mine lies near the household, When the mine lies near the household,

deep water wells are dug and water deep water wells are dug and water supply is built.supply is built.

► In some cases the mine supplies people In some cases the mine supplies people with water, bringing it with lorries.with water, bringing it with lorries.

Page 9: Mining and Water Oil-shale is the most valuable mineral in Estonia. For years people have produced energy from oil-shale. Energy for getting light and.

ConclusionConclusion

►Oil-shale mining has both advantages Oil-shale mining has both advantages and disadvantages.For saving the and disadvantages.For saving the nature and environment,the best nature and environment,the best possible ways need to be chosen.possible ways need to be chosen.


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