Abstract
Abstract Significant oil losses in oil-containing wastes and their adverse impact on the region environmental setting bring about the need to develop an oil-containing wastes treatment technology. To tackle this issue, the authors have set an aim of designing a helio device and creating an oil-containing wastes treatment method based on it to extract oil products. Considering a widespread in the composition and properties of potential oil sludge raw materials and their tendency for either formation of stable emulsions or phase separation, we have conducted in-depth modern physical and chemical studies and defined the need to develop a commercial oil-containing wastes purification method. We have designed the device, in which oil product hydrocarbons undergo thermal treatment using solar energy. Following oil-containing wastes purification using solar energy, the particulate load in soil does not exceed 6.65–6.79 % and the absolute molecular weight of hydrocarbons approaches that of bitumen. The developed oil-containing wastes purification method solves an important environmental issue of oil-containing wastes recycling, promotes recovery, and prevents degradation of natural complexes, and reduces soil and water pollution.
Highlights
Kazakhstan is located at the latitude between 42 and 55 degrees northward, the solar radiation potential in the republic is quite high – 1300–1800 kWh/m2 a year
If we consider the total insolation of solar energy by month in Almaty, Republic of Kazakhstan, the maximum value of the amount of solar energy falls from May to August, i.e., is 632·106–729·106 J/m2, and the minimum value is from November to February 136·106–239·106 J/m2
We have offered a universal commercial oil-containing wastes purification method
Summary
Kazakhstan is located at the latitude between 42 and 55 degrees northward, the solar radiation potential in the republic is quite high – 1300–1800 kWh/m2 a year. There are 2200–3000 solar hours a year. This high potential of solar energy enables its economic use in Kazakhstan. The annual solar energy potential in oil-producing regions is 0.652·1015 J. Wide use of solar energy may be of high economic value here. Use of the solar energy potential in oil field regions for the processing of accumulated and current oil-containing wastes during oil production defines the technical feasibility of this work. Solar technology development is an innovative focus area for Kazakhstan that does not have enough utility capacity to meet the entire power demand
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