scholarly journals Changes of Characteristics of Soil Contaminated by Oil Products during Electrochemical Cleaning

Author(s):  
N S Shulaev ◽  
V V Pryanichnikova ◽  
R M Damineva
2020 ◽  
Author(s):  
Meshalkin Valeriy Pavlovich ◽  
Shulaev Nikolay Sergeevich ◽  
Pryanichnikova Valeria Valeryevna ◽  
Bykovsky Nikolay Alekseevich ◽  
Kadyrov Ramil Rimovich

This study developstheoretical bases for the electrochemical process of cleaning soils from oil, oil products and highly mineralized reservoir water. The article experimentally and theoretically reveals patterns of reducing the content of polluting oil products in soils of various types during the small voltage passing. The optimal amount of electricity for the effective removal of various types of pollution was required. For the implementation of a electrochemical soil cleaning process a scheme of an original installation with placement of electrodes in the soil was studied. It reduces the resistance between the electrodes. The technical and economical calculations to determine energy costs of the electrochemical installation for cleaning oil-contaminated soils included: the number of electrodes; the voltage depending on the properties of the soil; the area; the depth of contamination of the soil to be treated;azndthe parameters of the electrodes. This allowed us to determine and develop the required degree of cleaning. Keywords: electrochemical process, charge, soil, oil products, voltage, cleaning


Author(s):  
E. A. Shabanov ◽  
S. M. Prostov ◽  
O. V. Gerasimov

The paper presents a brief analysis of methods of foundation soil purification from oil products. A method of electrochemical soil purification is suggested using the system of operational geophysical monitoring in natural conditions. A full-scale test method of controlled electrochemical soil purification and the experimental setup are described. The results of engineering-geological surveys of the soil massif artificially saturated with oil products (waste oil, gasoline) are presented. The formation of drainage zones, accumulation of petroleum products during electroosmotic transfer, soil structure changes caused by the phase transformation and dissolution of petroleum products are presented. the phenomenon of coagulation of oil products in soil during the electrical processing leading to the increase in the particle size in sand and clay components due to changes in the electrical soil resistance. The experiments prove the efficiency of electrochemical cleaning of low-permeable sandy-clay soils.


2020 ◽  
pp. 28-43
Author(s):  
A. S. Kaukin ◽  
E. М. Miller

The paper analyzes the consequences of the abolition of the export duty on oil and oil products as a necessary step to stimulate energy efficiency of Russia’s economy and eliminate underdevelopment provoked by a long-term subsidizing of inefficient oil refining sector in Russia. The calculation results have shown that even taking into account several deviations from the planned scenarios of changing the parameters of tax regulation of the oil industry in 2014— 2019, the tax maneuver brought over 3.5 trillion rubles (in 2019 — 148 billion rubles) to the state budget in 2014—2017, mainly due to an increase in the base mineral extraction tax rate, and contributed to an increase in the depth of oil refining from 72% to 85%. In addition, the article analyzes possible risks associated with the current plan for reforming the taxation of the industry until 2024 and proposes an alternative that could level some of them. A comparative analysis of the effects of the tax maneuver under the current reform plan and the alternative variant suggests that the latter will allow to achieve a greater total budgetary effect in four years, reduce the cost of subsidizing domestic oil refining, increase the efficiency of Russian vertically integrated oil companies, and reduce the growth rate of oil products prices in the retail market.


Author(s):  
Y.N. Rybakov ◽  
◽  
V.E. Danilov ◽  
I.V. Danilov ◽  
◽  
...  

The problem of losses of oil products from leaks during their storage and transportation at oil supply facilities is considered. The influence of oil product leaks on the environmental situation around oil depots and gas stations is shown. A detailed overview of existing methods and tools for detecting leaks of petroleum products from storage facilities is presented. The evaluation of their effectiveness. Two methods for detecting oil leaks and devices based on them are proposed. The first device monitors the movement of liquid in the tank, the second-detects petroleum products in wastewater. The problem of recovery of petroleum vapors and environmental pollution from the release of vapors of light fractions into the atmosphere is also considered. An overview of existing methods and means of recovery of petroleum vapors is presented. Two methods and devices for capturing oil vapors and returning them to the reservoir are proposed, based on different principles: vapor absorption in the cooled oil product and vapor recovery on the principle of the Carnot cycle. It is shown that these devices can provide effective detection of oil leaks and recovery of their vapors, as well as improve the effectiveness of environmental protection at modern gas stations and tank farms.


2018 ◽  
Vol 1 (4) ◽  
pp. 378-388 ◽  
Author(s):  
I. B. Shirokov ◽  
◽  
I. V. Serdyuk ◽  
I. I. Maronchuk ◽  
◽  
...  
Keyword(s):  

Author(s):  
Ya.M. Fridlyand ◽  
◽  
M.N. Kazantsev ◽  
F.V. Timofeev ◽  
S.N. Zamalaev ◽  
...  

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