| Leachate from landfills has a complex composition. For this reason,
the economical and ecocycle-compatible Sorbus leachete method is an ideal solution.
The new Sorbus leachete method is intended for local treatment and is based on natural processes in soils and substrates.
Due to the method's universal applicability, treated leachate can, on approval from the authorities, be released directly into natural recipients.
The Sorbus leachete method reflects far-reaching adaptation to the ecocycle. Hazardous substances are fixed for subsequent recovery,
and useful substances such as phosphorus are reintroduced as nutrients to the ecocycle. Moreover, the method is energy-efficient.
Emissions of heavy metals are reduced to background level or lower. Emissions of phosphorus are cut by almost 100 percent.
Nitrogen emissions are reduced by more than half.
Sorbus leachete in practice
- Ideally, the leachate is collected via a horizontal borehole in the landfill.
- Chemical precipitation takes place in a treatment plant. The sludge from the precipitation process is either digested on site using gypsum to fix the heavy metals,
such as sulfides, or treated with biosorbants. For the treatment of leachate with a low heavy metal content, the precipitation process may be omitted.
- The biosorption and retention stages consist of a system of compact constructed wetland and a final stage.
A plant-based wetland in eight units is subjected to a load to generate aerobic or anaerobic conditions.
A special substrate is used which promotes denitrification and nitrogen retention. The final stage is a so-called NEKOTEK filter, consisting of reactive, natural materials.
- The Sorbus leachete method, with or without the use of a treatment plant, can also be included in other applications for local and ecological obstruction of water-borne pollutants.
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