The structure of mining industries in Turkmenistan is rather
peculiar. There is no large-scale metal mining, and production mostly includes
construction materials and hydrocarbons (oil and gas).
The mining industry is responsible for the accumulation of great
quantities of wastes, including harmful ones:
- solid wastes formed in the process of mining of
mineral resources from the earth and their primary treatment (dumps of overburden,
dressing tails, etc.);
- "supplementary" wastes: remnants of
production structures, aggregates and materials used by mining enterprises;
- liquid wastes: quarry and mine waters, flotation
reagents, edge waters in the oil and gas fields, etc.
The greatest amount of technogenic wastes in Turkmenistan is found
near the sulphur plant in Gaurdak. It is equal approximately to 350 million tons (dumps of
overburden, poor ores, and dressing tails) with 8 to 10 million tons being added every
year.
Buzmeyin, a satellite town of Ashgabat, has the country's largest
production association of construction materials and a cement plant, which
cause greatest alarm among the public and nature conservation organisations. Under the
Decree of the President of Turkmenistan Saparmurat Turkmenbashi, for the purpose of
improving the ecological situation in the city of Buzmeyin, at present all large
industrial enterprises are being moved away.
Extremely
harmful substances in the mining wastes. Today this problem is of a rather localised
nature. The accumulation of such harmful metal as thallium in the sorbents used for the
extraction of iodine and bromine from the groundwater. In the dumps of the Cheleken
chemical plant the average content of thallium is 162 g/t, with the background level being
1.7 g/t. Similar figures can be expected for the dumps of the Balkanabat iodine-bromine
plant.
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