METHOD FOR PROTECTION OF GROUNDS AND GROUNDWATER AGAINST CONTAMINATION WITH OIL AND OIL PRODUCTS Russian patent published in 2009 - IPC E02D31/00 

FIELD: construction.

SUBSTANCE: invention is related to methods for protection of soils, grounds and groundwater against contamination with oil and oil products, in particular to methods for creation of antifiltration screens in construction of oil and product storage, oil pipelines, sludge collectors, etc. Method for creation of antifiltration barrier that prevents descending migration of hydrophobic contaminants in soils and grounds includes formation of liquid capillary screen. Upper layer of soil or ground is enriched with natural mineral and/or organic sorbents that possess high water-retention properties, with further moistening of soil or ground medium to condition of field moisture capacity. Mineral sorbents used are zeolites, clays or dolomites in amount of 1-33% from dry ground weight. Organic sorbents used are peat, cellulose, lignin, wood chips, crushed bark, straw, biomass of cultured and wild plants or rubber crumbs. Mineral sorbents are introduced in the form of mixture with soil in layer of 20-25 cm. Organic sorbents are introduced in separate layer with thickness of 5-20 cm located under layer of soil or mixture of soil with mineral sorbent of 5-20 cm thickness.

EFFECT: creation of barrier that prevents descending migration of hydrophobic contaminants in soils and grounds.

5 cl, 3 dwg, 3 ex