A process for the in - situ - purification of acidic washing, suppression of continuous pollutant mobilizations and immobilization of metals, in particular of heavy metals, arsenic, natural radionuclides and free hydrogen ions

摘要

The invention relates to a method for the in - situ - purification of acidic washing, suppression of continuous pollutant mobilizations and immobilization of metals, in particular of heavy metals, arsenic, natural radionuclides and free hydrogen ions due to temporally and / or spatially controlled injections in contaminated water-saturated underground regions and zones, preferably in aquifers, and in contaminated the basis of water, wherein for an in - situ - treatment and in - situ - renovation of these areas and areas as well as the reason water of a reactive aqueous solution of sodium hydroxide and / or sodium sulfite and mixing water is introduced in a controlled, metered and.With the aid of the described process, considerable the environmentally-significant, technically / technological and economic advantages in comparison with known processes. These advantages are carrying out a specific and more cost-effective in - situ - treatments and in - situ - renovations of the harmful stoves, immobilization already mobilised harmful substances in contaminated ground water, active development of the hydro - and geochemical environmental factors in the direction of foothill structural conditions, so that, by means of that is to say - value increase the ph and redox potential reduction in the progressive mobilizations of harmful substances are suppressed, conveyance by means of the chemically induced changes of the hydro - and geochemical environment in the direction of the neutral, an intermediate ratios of the invention, the form-fitting connection between the catalyzed sulfate reduction, ..