Phyto-purification of oil-contaminated soils

Research area – environmental protection.

Purpose – to reduce the time of alienation of land resources.

Area. Resource recovery technologies. Oil producing and refining companies.

Description. For the purpose of reclamation of oil-contaminated soils, a method for their biotic purification was developed using plants of coarse sedge (Carex hirta L.). Carex hirta plants are dug out with a lump of soil from ecologically clean areas (ambush), packed in soaking bags, with which they are introduced into the prepared soil. Before planting the plants, the soil is mechanically loosened and watered. Planting can be carried out during the calendar year. The existing methods of soil cleaning require significant material and technical costs, are long-term in time and do not ensure the complete elimination of petrochemical pollution. The proposed method for phyto-purification of soil is a cheap, affordable, environmentally friendly measure that significantly accelerates the processes of restoration of degraded soils and natural ecotopes for their possible reuse.


  • coarse sedge plants are tolerant to oil pollution, survive and occupy territories at a concentration of oil products in the soil of 98 g / kg;
  • the proposed method of phyto-purification of the soil allows to restore the physicochemical properties of the soil (acidity, air-water balance, etc.) during the year;
  • rhizomes of coarse sedge contribute to the restoration of the number of soil microflora (saprophytes, microscopic fungi and yeast, propionic acid, cellulose-destroying bacteria, oligonitrophils and nitrifiers);
  • the use of this method allows you to restore natural ecotopes in a short time at minimal cost.

Novelty. 1 patent of Ukraine.

Readiness. Revision is needed.

Cooperation. Co-hosting up to industrial level.

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