FIELD: process engineering.
SUBSTANCE: invention relates to removal of oil contaminants and can be used for cleaning of solid surfaces including soils and complex-geometry structures. Proposed method comprises spray washing of solid surfaces in detergent flow and phase separation of fouled detergent. Said detergent represents a 1-15%-water dispersion of monodisperse solid particles composed of polystyrene microspheres or mineral particles. Size of said solid particles varies from 0.2 to 6.0 mcm while the surface is modified by organosilicon surfactant. Solid particles film maximum 2D pressure makes 12-18 mN/m. Phase separation of fluid detergent is performed by addition of electrolyte aqueous solution.
EFFECT: simplified non-polluting process.
3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| SUBSTANCE FOR CLEANING SOIL AND SOLID SURFACES FROM OIL, INCLUDING FROM OIL AND OIL PRODUCTS, AND METHOD FOR USE THEREOF (VERSIONS) | 2015 |
|
RU2596751C1 |
| METHOD OF CLEANING OIL-POLLUTED SOILS, GROUNDS, AND OIL-SLIMES | 2003 |
|
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| RECLAMATION COMPLEX TECHNOLOGY FOR SOILS CONTAMINATED WITH OIL AND OIL CONTAINING PRODUCTS | 2007 |
|
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| TREATMENT MACHINE FOR OIL-STAINED SOILS AND OIL SLUDGE | 2007 |
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| METHOD FOR RECULTIVATION OF DRILLING MUD | 2014 |
|
RU2579230C1 |
| METHOD OF CLEANING SOIL OR OIL AND OIL PRODUCTS AND UNIT TO THIS END | 2008 |
|
RU2381995C1 |
| METHOD FOR WASHING OIL-CONTAMINATED SOILS | 2018 |
|
RU2740121C2 |
| METHOD OF PROCESSING HIGHLY POLLUTED OILY WATER, DEPOSITS AND SOIL, AND CORRESPONDING EQUIPMENT | 2007 |
|
RU2331587C1 |
| METHOD FOR CLEANING EARTH SURFACE OF OIL AND OIL PRODUCTS DURING WINTER PERIOD | 2006 |
|
RU2317161C2 |
| METHOD OF CLEARING SOIL CONTAMINATED BY OIL AND OIL PRODUCTS | 2010 |
|
RU2440200C1 |
