ACID HELIOMICROBIOLOGICAL METHOD FOR OIL CONTAMINATED SOILS IN WESTERN KAZAKHSTAN FIELDS

Abstract

The article presents promising methods of cleaning oil-contaminated soils. Oil pollution causes serious damage to the environment. Under normal conditions, work on the purification of oil waste and oil-contaminated soils is not carried out due to the lack of equipment and efficient processing technology. It is emphasized the need to develop promising methods for cleaning oil-contaminated soils and the possibility of using oil-contaminated soils as an organic retaining material for fixing the soil layer in road construction, as well as building materials. According to laboratory studies, with a moisture content of 30%, oil sludge is transported in the form of brittle plates. At the same time, oil sludge does not gather dust, has thixotropic properties, passes more than 1-3% of moisture into the lower soil layer. Thus, dry oil sludge is convenient and safe for transportation and storage in warehouses. The humidity of dry oil sludge averages 15-20%. The composition of the dry sludge is mostly stable: petroleum products 15-25%; mechanical impurities 70-75%; water 5-8%. In recent years, a number of studies have been conducted to eliminate oil pollution to solve the problem of cleaning oil-contaminated soils. Various classifications of landfills and methods of waste disposal during the construction of landfills of oil production waste are described: sludge collectors. However, currently none of the methods of removing oil-contaminated soils is widely used, each of these methods has its advantages and disadvantages. The ways of the microbiological method aimed at preventing or reducing pollution by oil and petroleum products trapped in the soil layer are shown. The object of research in the article is the Zhanazholskoye field, one of the West Kazakhstan fields, and the situation of applying the new technology to the heliomicrobiological method of acidification of oil-contaminated soils is presented.