Influence of polymeric materials on mobile forms of heavy metals at different levels of polymetallic pollution of sod-podzolic soil

The model experiment shows the effect of natural sorbents, such as hydrolysed polyacrylonitrile (HYPAN), HYPAN +potassium humate (Sakhalin humate) and mycelium of species Alternaria alternata on the content of mobile forms of heavy metals (HM) in sod-podzolic soil (Chashnikovo, Moscow region) before and after the application of copper, zinc and lead salts. It is shown that the positive effect of treatment of contaminated soil with polymers is observed at all levels of TM load. At the same time, the greatest effect of remediation with sorbents used by the authors was observed in the presence of ‘Sakhalin humate’. In general, the most effective reduction of mobile forms was observed at maximum soil contamination (in the experiment - 6 ODK TM).