A COMPREHENSIVE APPROACH CLEANING OF SOIL LAYERS FROM OIL

Author:

Siemaka Oleksii, Chernihiv National University of Technology (95 Shevchenka Str., 14027 Chernihiv, Ukraine)

Language: ukrainian

Annotation:

Urgency of the research. A large number of oil processing productions and technical disasters leads to significant environmental pollution, and sources of pollution are difficult to locate and destroy.

Target setting. It’s necessary to increase the level of purification of the environment (water and soil) up to complete elimination of the effects of industrial accidents; special concern is given to contamination of underground water aquifers and soils with oil products.

Actual scientific researches and issues analysis. Considerable attention is paid to the existing diverse methods of purifying water and soil from oil, a special role is given to sorbents. The well- known devices and methods are used only for  water purification and the soil surface from petroleum products.

Uninvestigated parts of general matters defining. The disadvantage of the known devices and technologies is the impossibility of their use in thicker oil contaminated soil.

The research objective. The aim is to work out the technology of purification of soil deep layers, that is implemented by designing a device to transport the biodistructor bacteria to the required depth of the soil and the technology of  recycled bioremediation.

The statement of basic materials. During the research process it was offered to design a unit for the transportation of biosorbent into the deep layers of the soil, that consists of a solid shell. The shell is made in the form of a perforated pipe and at the bottom it has a flange in the form of borax with cutting edges on the outer surface of the pipe, allowing to transport the shell into the deep layers of the soil and to reuse shell. On the basic of analytical and experimental studies there was developed a scheme of reversible bioremediation, that allows to see the mechanism of purification of polluted territories from petroleum products.

Conclusions. For the first time it has been offered the technology of using biodistructor in the deep layers of the soil due to the designed device. The proposed method of reverse bioremediation (drainages, water-sorbent solution in the contaminated area and reuse of drainage water for purification of the deep layers of soil from oil). It has been developed the idea of the operational recovery of ecosystems, rehabilitation of soil and underground water from pollution basing upon the method of reverse bioremediation.

Key words:

ecosystem, environmental safety, sorbents, device, oil products, pollution

References:

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