Fomerly Europe’s largest lead mine, Laisvall was located in Arjeplog Municipality, northern Sweden, towards the Norwegian border. Lead-rich boulders were discovered in 1938 and, by 1941, further investigations had encouraged the authorities to decide to mine the deposit as a strategic, short-term measure.
The old processing plant and headframe at Laisvall. According to the Boliden company homepage, the first concentrate shipped from the mine was in December 1943. Already in 1949 a new plant is under construction and the year after the mine is planned for a production of 500kton/year. Scanned postcard.
The Laisvall Lead Mine is in Norrbotten, Sweden. The site was first discovered in 1939 by Boliden A/b. Production output of the Laisvall Lead Mine was considered to be medium size. The ore mined is composed of galena, pyrite and sphalerite with waste material consisting primarily of calcite, fluorite and sericite.
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Pollution history of the Laisvall lead mine and enrichment plant The mining activity at Laisvall began in 1943 with production of around 50 000 t ore year −1 (Widmark, 1983).
Mineralized material mining is planned on 3 m sub-benches while waste mining is planned on 9 m full height benches. Two-way haul rouds, 20-m wide at a 12% grade, were designed in most cases where higher traffic may require extra width for safe and efficient passing of trucks.
Water Treatment Plant: A self-contained facility that cleans waste water from mining facilities so that it can be re-used at the site or safely released into the environment. This water is treated to standards that are tighter than many drinking water standards.
Operations Foresight Energy is a leading coal producer in the Illinois Basin Region of the U.S. with nearly 2.1 billion tons of coal reserves currently supporting four mining complexes.