Worms, microbes and debris that resurrect soils

By 10/01/2020 portal-2

Worms, microbes and debris that resurrect soils

By 10/01/2020 portal-3

Worms, microbes and debris that resurrect soils

By 10/01/2020 portal-3

Research applies in Aznalcóllar a way to activate soil contaminated by heavy metals so that it regenerates from worms, microorganisms and waste

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Research applies in Aznalcóllar a way to activate soil contaminated by heavy metals so that it regenerates from worms, microorganisms and waste

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He Aznalcóllar spill (Seville), which will be 22 years old on April 25, is one of the largest mining accidents in the world. The fracture of a pond spilled 4.5 million cubic meters of toxic sludge over some 5,000 hectares of agricultural soil, the area equivalent to almost four times the city of Cádiz. A study of the Universities of Granada and Almería revealed that, despite the regeneration work and after more than two decades, a part of the affected area (a 7%), the closest to the mine, maintains high levels of acidity and heavy metals such as arsenic, lead, copper and zinc. Recent research by the universities of Granada, Elche and Tokyo has discovered a weapon against this pollution: the use of compost generated with worms, organic and inorganic waste as well as microorganisms so that the land itself regenerates. It is a kind of immunotherapy applied to the earth.

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