FREMGANGSMAATE VED OPPRENSKNING AV TUNGMETALLFORURENSET JORD

摘要

Process for decontaminating soils polluted with heavy metals by treatment by means of ammonium chloride solutions. The process is characterised by the use of concentrated ammonium chloride solutions, that is to say containing more than one mole per litre, these solutions having an inorganic base added to them to reach a pH higher than 7. The process can be employed for the reclaiming of soils with a view to an agricultural use.