Dammolyckan vid Los Frailes Sevilla, Spanien 1998

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InnehållsförteckningAbstract........................................................................................................Sammanfattning............................................................................................Dammolyckan vid Los Frailes .................................................................... 1Bakgrund.................................................................................................... 2Bolidengruvan ............................................................................................ 3Områdesbeskrivning………………………………………………………. 5Räddningsinsatsen ...................................................................................... 6Åtgärder efter olyckan ................................................................................ 7Miljöeffekter .............................................................................................. 9Saneringsarbete…………………………………………………………….10Massmedia............................................................................................... 12Slutsatser frånolycksräddningsfasen……………………………………….13Hänvisning ............................................................................................... 14Bilagor …………………………………………………………………..153
AbstractOn Sutarday april 25 1998 just before 01.00 a m a 700 m section of a wallof a tailingpond moved away about 60 m and let away about 7 million m3 oftailing sand down to the almost dry river Rio Agro. More than 2000 ha ofagriculture land was covered by tailings along 40 km of the receiving rivers.The spill led to a immediate extension of aquatic life in the upper parts ofthe river and was a potential threat to the fauna in the Donana National Park.No death or injured persons was reported from the accident.The tailingpond belongs to Boliden Ltd, a miningcompany which producezink, lead, cupper and silver. The content of the pond was about 33 millionsm3 and the area of had an area of 200 ha. The tailingsand has a relativehigh concentration (2.000-8000 g/ton) of zink, lead, arsenik and cupper butalso other heavy metalls of lower concenration.Boliden Ldt and the spanish athorities organized their own committees howto solve different problems; causes to the accident, cleaning up, the enviromentaleffects etc.The first priority of limiting the environmental impact of the accident was toremove the tailings before the raining season starts.Keywords: tailingpond, haevy metals, Donana Natinal Park5
Page 6 and 7: SammanfattningGenombrottet av sandm
Page 8 and 9: BolidengruvanBoliden Los Frailes ti
Page 10 and 11: OmrådesbeskrivningBolidengruvan Lo
Page 12 and 13: RäddningsinsatsenGenombrottet av s
Page 14 and 15: • En grupp av spanjorer anställd
Page 16 and 17: Slutsatser och erfarenheterKonsekve
Page 18 and 19: SaneringsarbeteDe spanska myndighet
Page 20 and 21: Kartbild över sandmagasin med inti
Page 22 and 23: 23Bilaga 3
Page 24 and 25: 25Bilaga 5
Page 26 and 27: Bilaga 6Temporärt tätad brusten s

Dammolyckan vid Los Frailes Sevilla, Spanien 1998

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