Influence of electret state of polymer fibrous materials on sorption of petroleum products

2020 ◽  
Author(s):  
Victor Goldade ◽  
Vladimir Zhukalov ◽  
Sergei Zotov
1984 ◽  
Vol 16 (1) ◽  
pp. 47-51
Author(s):  
A. V. Genis ◽  
K. O. Korovitsyn ◽  
V. A. Svistunov ◽  
L. B. Mal'kov ◽  
V. I. Belyavskii

Author(s):  
I. V. Cherunova ◽  
A. M. Korinteli ◽  
M. P. Stenkina ◽  
T. Yu. Lesnikova

The article presents data on the influence of the marine environment on textile materials. Aggressive components of the marine environment that contact the surface of clothing (sea salt and oil) are justified. Sea salt is an integral part of seawater. It accumulates in the clothing structure. Oil is included in the components of seawater in emergency situations at offshore oil and petroleum products and sea transport facilities. This leads to a change in the properties of textile materials, which depend on the concentration of aggressive components in the structure of textile materials. The active concentration of aggressive components in textiles is determined by its ability to absorb liquid. Specific features of changing the volume of various textile fibers during interaction with liquids are established. Structure of sea salt and the chemical composition of oil. This determines the change in the properties of the textile in contact with them. The structure of sea salt and the chemical composition of oil is justified. This determines the change in the properties of textiles. As a result of the systematization of modern data on clothing materials that are used in marine technology, the information base of the leading modern fibrous materials for protective clothing was formed. The reference materials for research are allocated. It was found that the presence of sea salt in a moist contact medium with a surface of a special fabric on a cotton basis for all samples of materials led to a decrease in their capillarity. It has been established that packages of materials based on mixed-fiber fabrics have permeability parameters with respect to crude oil below the cotton garment surfaces. The application in combination with such materials of holofiber insulation reduces the level of saturation of clothing with the liquids examined. The article presents experimental data on the permeability of sea water and oil in special materials for clothing. The work was supported by the Ministry of Education and Science of Russia in the Don State Technical University within the framework of the State task 2017-2019 under the project No. 11.9194.2017/БЧ.


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.


2020 ◽  
Vol 0 (2) ◽  
pp. 21-25
Author(s):  
Nikolay Dubenok ◽  
Andrey Novikov ◽  
Sergei Borodychev ◽  
Maria Lamskova

At the stage of water treatment for irrigation systems, the efficiency capture coarse and fine mechanical impurities, as well as oil products and organic compounds affects the reliability of the equipment of the irrigation network and the safety of energy exchange processes in irrigated agricultural landscapes. The violation of work irrigation system can cause disruptions in irrigation schedules of agricultural crops, crop shortages, degradation phenomena on the soil and ecological tension. For the combined irrigation system, a water treatment unit has been developed, representing a hydrocyclone apparatus with a pipe filter in the case. For the capacity of 250 m3/h the main geometrical dimensions of hydrocyclone have been calculated. To organize the capture petroleum products and organic compounds, it has been proposed a modernization of a hydrocyclone unit, consisting in dividing the cylindrical part of the apparatus into two section. The first is section is for input irrigation water, the second one is for additional drainage of clarified irrigation water after sorption purification by the filter, placed on the disk and installed coaxially with the drain pipe and the pipe filter.


Sign in / Sign up

Export Citation Format

Share Document