Abstracts of The Second Eurasian RISK-2020 Conference and Symposium最新文献

{"title":"The Current State of the Problem of Using Landscape Indicators to Assess Soil and Ground Conditions in the Mountainous Regions of the Chechen Republic","authors":"A. Abumuslimov, M. Taisumov, Fazil Alakhverdiyev, I. Abumuslimova","doi":"10.21467/abstracts.93.61","DOIUrl":"https://doi.org/10.21467/abstracts.93.61","url":null,"abstract":"Book DOI: 10.21467/abstracts.93 landscape with the most completeness and accuracy and reveal its relationship with geological and hydrogeological conditions. In aero-landscape indication a certain terminology has been developed. So the object of indication or indicator is called the recipient component for the purpose of which the indication is made. The physiognomic components used for indication are called indicators; as their most often various combinations of relief and vegetation appear, caused by complex or landscape indicators; if relief forms are used for indication, then they are called geomorphological indicators; if the indication is made by plant communities about geobotanical indicators. Among the indicators, direct and indirect ones are distinguished. Direct indicators are those that have a direct relationship with the indicator and depend on its distribution. Indirect indicators are those whose relationship with the indicator is through some intermediate link in the environment. Direct indicators are very stable and change little in different parts of the range, while indirect indicators are usually regional in nature. By the nature of the object, indicative studies conducted in the mountainous areas are divided into hydroindication, pedoindication, lithoindication and indication of minerals. For the practice of agricultural assessment of the territory, pedo-indicator and litho-indicator studies are of the greatest importance. Initially, in the mountainous regions, only a geobotanical indication took place. At the same time, the work had a predominant litho-indicative character. Indication of soils as an independent task was not posed. In most non-indicative works, it was not the relationship between vegetation and soil that was studied, but the relationship between vegetation and rock. The main modern directions in indicator research in mountainous areas are: a) the development of landscape indication when used as indicators of both landforms and their exposure and vegetation; b) the use of landscape indications to determine exogenous processes in the mountains; c) further development of litho-indication and refinement of its methodology. Further development of this area of research in the laboratory and VSEGINGEO methods under the direction of A.V. Sadova led to the formation of a concept according to which the development of exogenous processes in the mountains can be predicted based on landscape indications. In this case, the starting link is the compilation of a landscape map, which is then interpreted for indicative purposes. Interpretation is carried out by identifying which of the selected landscapes are characterized by certain exogenous processes. This identification is carried out by studying in the field key areas selected within different landscapes, as well as by viewing aerial photographs and fixing manifestations of various processes on them.","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"835 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124031099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Approach for Analysis of Components Failure Rate Used for System; Maintenance and Risk Decision Making","authors":"S. Panic, V. Petrovic, H. Milosevic, Nataša Kontrec, O. Taseiko","doi":"10.21467/abstracts.93.24","DOIUrl":"https://doi.org/10.21467/abstracts.93.24","url":null,"abstract":"Book DOI: 10.21467/abstracts.93 repair a failed component or system. This time includes the time it takes to detect the defect, the time it takes to bring a repair man onsite, and the time it takes to physically repair the failed module. Just like MTBF, MTTR is usually stated in units of hours. We could define availability through MTBF and MTTR. In that case we would observe MTTR as a stochastic process and we would determine its characteristic PDF and other parameters for certain predefined availability but, according to our opinion observing 1/MTTR, rate of repair, as stochastic process, is more significant for the entire repair process planning and managing. Due to complexity of process of estimating the components’ failure rate in relation to time, as well as a stochastic nature of the observed process, the random variable x could also be considered as a random variable that changes significantly slower than random variable t described with the Rayleigh’s model. We assume that the failure rate is Rayleigh distributed and that the MTBF is a predetermined value. Also, after repairs, the unit returned to its original state and performed as new. By observing repair time as stochastic process, we present the exact expressions for repair rate‘s probability density function (PDF) and cumulative distribution function (CDF). Using this expression can result in exact repair rate sample values for corresponding values of availability. In this way, by simulating the repair rate process through generating its samples, we can predict system‘s dynamic characteristics. After determining the repair rate characteristics of single unit or subsystem, the statistical analysis of the system’s repair rate was presented. Actually, we calculate probability density function of maximal and minimal repair rate of the system by observing repair rates of its components. The proposed model was applied to unmanned aerial vehicle (UAV) system comprised of three critical components: engine, propeller and avionics. The PDF of repair rate for each component was graphically presented as well as the PDF and CDF of maximal and minimal repair rate of the entire system. Based on this information we can conclude in which time interval maintenance action should be successfully completed in order to achieve the desired level of availability. Even though we set availability on certain levels, the numerical analysis can be repeated with different values of availability. This model can be applied in the same manner to other repairable systems with the alternating renewal process. The obtained results can be used in planning of maintenance activities, inventory, service systems and number of required employees, in the process of system maintenance. The observed system is an unmanned aerial vehicle (UAV). The concept of unmanned aerial vehicle (UAV) is not new but it has not been utilized in civilian sector due to the insufficient level of reliability of current solutions that leads to high","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"25 20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125767548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using Adaptive Replacement to Minimize Risk in the Oil and Gas Industry","authors":"T. Mazzuchi, R. Soyer, N. Robinson, K. Aboura","doi":"10.21467/abstracts.93.102","DOIUrl":"https://doi.org/10.21467/abstracts.93.102","url":null,"abstract":"presented a decision theoretic approach for determining optimal replacement strategies under replacement and repair scenarios. The Bayesian approach, adaptive in nature, takes into account failure and survival information at each planned replacement stage to update the optimal time until the next planned replacement. Under the assumption in which an item is replaced by a new one upon failure, the underlying process between two planned replacement times is a renewal process. The replacements upon failure that may occur between the planned replacement stages constitute renewals of the underlying renewal process. The times between renewals are the lifetimes of the items. Mazzuchi and Soyer (1996) made the Weibull assumption for the lifetime distribution of an item and used an approximation due to Smeitink and Dekker (1990) to compute the renewal function. Robinson and Aboura 2015) enhanced the adaptive approach by presenting a method for the exact calculation of the renewal function and its derivative due to Constantine and Robinson (1997). The method of finding zeros of a function, by Muller (1956) and Frank (1958), is adapted to the maintenance optimization problem, making use of the availability of the derivative of the renewal function. Robinson and Aboura (2015) made further improvements by providing a methodology for the assessment of the joint prior distribution of the parameters of the Weibull lifetime model. The prior distribution is determined through the specification of initial reliability estimates for different mission times. To provide a simple approach to","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115847753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Applicability of Dispersive and Nondispersive Wave Models for Description of Long Wave Propagation and Run-Up on a Beach","authors":"A. Abdalazeez, D. Dutykh, P. Denissenko, I. Didenkulova","doi":"10.21467/abstracts.93.26","DOIUrl":"https://doi.org/10.21467/abstracts.93.26","url":null,"abstract":"The aim of this work is to study the applicability of dispersive and nondispersive wave models for description of long wave propagation and run-up on a beach in the case ofconstant bottom depth merged with the beach of constant slope. Numerical simulations are performed in the framework of two models: (1) non-dispersive model, based on the Nonlinear Shallow Water (NSW) theory and (2) weakly dispersive model in the Boussinesq approximation, based on the modified Peregrine system. Both models use the finite-volume method with the second-order UNO2 reconstruction in space and the third-order Runge– Kutta scheme with locally adaptive time steps. Both models also include a Manning friction term to take into account for friction effects on the sloping beach. The models are compared with experimental data for different types of waves: single waves, sine waves, bi-harmonic signals and «vessel-like» wave trains, strongly modulated by frequency and amplitude. All used types of waves have the same main characteristic","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132324275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring Water Quality in the Northern Adriatic Sea","authors":"I. Ciglenečki, J. Dautović, M. Kuzmić","doi":"10.21467/abstracts.93.57","DOIUrl":"https://doi.org/10.21467/abstracts.93.57","url":null,"abstract":"© 2020 Copyright held by the author(s). Published by AIJR Publisher in “Abstracts of The Second Eurasian RISK-2020 Conference and Symposium” April 1219, 2020, Tbilisi, Georgia. Jointly organized by AMIR Technical Services LLC, Georgian Technical University, Institute of Geography (Kazakhstan) and Russian Institute of Petroleum Geology and Geophysics. DOI: 10.21467/abstracts.93 Early Warning Systems and Monitoring Solutions Monitoring Water Quality in the Northern Adriatic Sea","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129755369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Current State of the Abandoned Mine Wastes: Environmental Risks, Prospects for Extraction and Reclamation","authors":"N. Yurkevich, N. Yurkevich, S. Bortnikova, Y. Karin","doi":"10.21467/abstracts.93.83","DOIUrl":"https://doi.org/10.21467/abstracts.93.83","url":null,"abstract":"Mining activity entails accumulation of hundreds thousands tons of sulfide–bearing mill wastes with high concentrations of ore elements (Fe, Cu, Zn, Cd) and impurities (As, Hg, Be, and Tl). Oxidation of the sulfide minerals results in the formation of acidic solutions with high concentrations of SO42-, Cu, Zn, Fe, As, Sb and other soluble species. These elements may migrate out of tailing dumps within drainage streams and get discharged into the rivers or seeped into groundwater, or they may end up in the atmosphere with air flows for tens of kilometers (Yurkevich et al., 2017; Bortnikova et al., 2019). The relevance of solving the problem of industrial pollution is determined by the social significance of the natural environment protecting. Also the abandoned mine wastes can be considered as “man-made deposits” due tohigh content of valuable components and their volumes.And while Japan, the USA, China, the EU countries are actively using technology to re-engage valuable components from the “tailings” into production, in Russia, interest in deep processing technologies is so far only associated with the desire of mining processing companies to reduce their costs.Despite the fact that “Reproduction and use of natural resources” and “Environmental Protection” are long-term programs, adopted by the Russian Ministry of Natural Resources. In fact, the handling of abandoned waste in the Russian Federation is not currently regulated, the question remains open: there is no established methodology for estimating stockpiles and handling of waste stored in old, unaccounted for storages. Meanwhile, according to some estimates, the volumes of hazardous sulfide-containing mining waste in non-equipped storage facilities according to modern standards reach several billion tons in our country (data from www.gks.ru, 2017). They are stored in the open air, as a rule do not have anti-filter screens, are exposed to atmospheric precipitation. Active oxidation of finely ground material leads to chemical pollution of water and soil cover within a radius of several kilometers. The recent investigation aims to detect mechanisms of chemical elements migration from the abandoned mine wastes and the ways of their immobilization. The main idea of the study is to assess the environmental damage and search for optimal methods to extractthevaluable components, reburythe toxic residues and reclaimthe contaminated areas. Study objects include abandoned wastesafter the processing of sulfidecontaining polymetallic ores located in the immediate vicinity of the living area in the Kemerovo Region (Komsomolsk, Ursk, Belovo, Salair) and the Trans-Baikal Territory (Vershyno-Shakhtama and Vershyno-Darasuntowns, Fig.1). Figure 1. The layout and photos of thestudy objects The Second Eurasian RISK-2020 Conference and Symposium 154","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129138630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Assessment and Mapping of Mudflow Hazard and Mudflow Risk in the Territory of Almaty","authors":"A. Medeu, V. Blagoveshchensky, T. Gulyayeva, Sandugash Ranova","doi":"10.21467/abstracts.93.3","DOIUrl":"https://doi.org/10.21467/abstracts.93.3","url":null,"abstract":"The Almaty city, located at the foot of the Zailiyskiy Alatau ridge, is the largest metropolis of Kazakhstan with a population of about 2 million people. The city is located on mudflow fans and has repeatedly been exposed to the destructive effects of mudflows. Mudflow disasters with big material damage and human casualties occurred in 1921, 1950, 1956, 1973 and 1977. Mudflows with material damage were recorded also in 1999, 2006, 2013 and 2019. Maps of mudflow hazard and mudflow risk are necessary for the development of measures for protection against mudflows. In 2018-2019 such maps were compiled by the Institute of Geography for Almaty on the instructions of the Department of Emergency Situations of Almaty. Maps were compiled at a scale of 1:25 000 using GIS technology. To compile the maps, archival data on mudflows from 1900, satellite images, and ground-based observations were used. The mudflow hazard maps show the boundaries of mudflows of various volumes and repeatability. By volume, mudflows are divided into 4 categories: small (<10 thousand m 3 ), medium (10-100 thousand m 3 ), large (100-1000 thousand m 3 ) and very large (> 1 million m 3 ). In terms of repeatability: frequent mudflows (more than 1 time in 50 years), rare (1 time in 50-100 years) and very rare (less than 1 time in 100 years). The volume of mudflow in the field was determined by the maximum size of the boulders, and the","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"51 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125657810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regulation of Recreational Loads to Slope Landscapes as the Basis for Sustainable Development of the Territory of the Cheboksary Agglomeration of the Chuvash Republic","authors":"A. Gumenyuk, I. Nikonorova, M. Vishnevskaya, T. Luchina","doi":"10.21467/abstracts.93.70","DOIUrl":"https://doi.org/10.21467/abstracts.93.70","url":null,"abstract":"Book DOI: 10.21467/abstracts.93 Directly in the coastal area of the river Volga, where mainly abrasion-landslide and abrasion-talus processes develop, the main types of tracts are identified: 1) abrasion-landslide ledges on the root slopes of the Volga Valley with a steepness of 60o, a height of more than 15 m by constant wetting as a result of seepage underground; 2) abrasion ledges of floodplain terraces with a 2 m height; 3) abrasion ledges of the root slope of the Volga valley with a height of more than 2 m, with characteristic abrasion niches in the lower part of the slope or a temporary accumulation of collapsed material. For recreational use, the lithological and geomorphological characteristics of the coastal zone play an important role. The combination of high abrasion banks with landslide phenomena and ravine erosion along the right bank, and shedding and flooding along the left banks of this reservoir negatively affects the structure of recreational use of the study area. Active exogenous processes are landslides in the upper part of the slope, which is facilitated by the steepness of the slopes (15-20o) and their lithological structure. There are up to three large landslide steps with a landslide-warped forest. Such sites are observed in the northwest of the Volga slope in the area of Novoselsky beach and are expressed by the destruction of the asphalt path on the descent to the beach. The key recreational areas are located on the territory under consideration: \"Park of the 500th anniversary of the city of Cheboksary\" and Ethnocomplex \"Amazonia\", ski resort \"Vertical\" with an inclined surface with a crossed relief within the slope of the northern exposure. The recreational load in the park is not uniformly distributed, so the marginal sections of the park have an increased load of more than 40 people/ha/day. Therefore, tropic degradation of living ground cover is characteristic of oak forests. Therefore, tropic degradation of living ground cover is characteristic of oak forests. As the anthropogenic load intensifies, the path network begins to merge into a single trodden area with a petrified surface that does not perceive any more vegetation. At the same time, the stand itself experiences significant oppression. The left bank of the city of Cheboksary The Volga region experiences a strong recreational load, especially in the warm season. The anthropogenic impact on the plant cover leads to the disappearance or sharp decrease in the abundance of plants. Plants unstable to trampling suffer. Soil compaction and desiccation, disturbance of its structure, reduction of air and moisture capacity, soil washout on inclined areas, weathering of sandy soils. Forest plant species are gradually giving way to forest meadow and meadow. The ability of trees to self-renew is weakened; undergrowth and undergrowth thin out and die as a result of large recreational loads reaching 8-12 people per 1 ha daily with a permissible 1-2 people/ha. Changes under","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114222893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Main Direction of Risk Mitigation in Petroleum Industry: Researches of IPGG SB RAS","authors":"I. Yeltsov, A. Komarova","doi":"10.21467/abstracts.93.91","DOIUrl":"https://doi.org/10.21467/abstracts.93.91","url":null,"abstract":"Book DOI: 10.21467/abstracts.93 (blowouts, accidents, etc.) One of the areas that can be advanced with the help of geophysical research is study and prediction of seismic activity. Development of the seismic tomography method and its application for the study of various geological structures has provided world renown results. The created LOTOS passive tomography algorithm has already been tested on more than a hundred objects around the world and served as the basis for construction scenarios for the development of various geological structures. The use of the flexural standing wave method allows for solving seismic engineering problems, such as microseismic zoning, underground mapping, piping diagnostics, seismic safety of facilities, pavement diagnostics. Ecological risks. Petroleum industry is often considered one of the main pollutants in the world with all of its sectors adding to the water, air, soil contamination. Nowadays most of the states and companies turn to the “greener” technologies, however there is still need to handle previous pollutions, as well as prevent the future ones. Comprehensive assessment of technogenic deposits (waste from the mining industry) with the development of methods for the secondary processing of waste and the restoration of disturbed territories. Assessment includes technique for operational control of the efficiency of neutralization of waste from a zinc plant by methods of induced polarization and electrotomography; methodology for calculating tailings volumes using remote sensing data, seismotomography and electrotomography. Another promising direction of research is development of a methodology for assessing environmental risks in oil-contaminated Arctic territory. It allows for evaluation of the pollution of environmental components in the area of mothballed oil and gas condensate fields with chemical elements and oil products, taking into account high concentrations of arsenic (hazard class 1), iron, manganese, typical of the Arctic territories. Economical risks. Oil price is one of the most volatile indicators in the modern economy with a great influence on the different areas of state and companies’ activities. Accurate assessment and forecast of the future revenues and costs for the company allows for the long-term planning of exploration and production operations. Complex evaluation of influence of state policy in petroleum industry provides basis for improvements of particular government measures to stimulate the development of the industry and regions. At the same time, such analysis reveals possible shortage of state budget in the future. In conclusion, an integrated approach to risk accounting at all stages of subsoil use – the search, assessment, exploration and extraction of minerals – has been developed at the IPGG SB RAS. Thus, evaluations of the economic efficiency formed the basis for the formation of a number of strategic documents for the development of the oil and gas industry in Russi","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122484261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of the Effectiveness of a Biological Product Based on Saprophytic Bacteria and Natural Sorbents for the Rehabilitation of Oil-Contaminated Soils","authors":"D. Uspanova, O. Nechaeva, E. Tikhomirova, N. Shurshalova","doi":"10.21467/abstracts.93.88","DOIUrl":"https://doi.org/10.21467/abstracts.93.88","url":null,"abstract":"Book DOI: 10.21467/abstracts.93 of which were selected experimentally. Previously has been shown that a strain of B. pumilus is avirulent, has a high enzymatic and adhesive ability, which made it possible to use it as a component of a biological product, as well as to create its immobilized form on glauconite granules [2]. We used an overnight culture of bacteria grown on meat-peptone ohm broth e (BCH) at 28o C. Glauconite is a clay mineral of variable composition with a high content of ferrous and trivalent iron, calcium, magnesium, potassium, phosphorus, as well as a number of trace elements [3]. All of them are in easily removable form of exchangeable cations, which are replaced by elements in excess in the environment. Due to these properties and the layered structure, glauconites are characterized by high sorption ability, including oil products. For research, the following samples were obtained: K control sample of soil containing oil products; P1A experimental sample containing 84 g of glauconite sorbent; P2B an experimental sample containing 84 g of the sorbent of glauconite and 1 ml of the broth culture of bacteria B. pumilus; P3A is an experimental sample containing 168 g of glauconite sorbent; P4B an experimental sample containing 168 g of the sorbent of glauconite and 1 ml of the broth culture of bacteria B. pumilus; P5 is an experimental sample containing 1 ml of a broth culture of B. pumilus bacteria. Results and discussion. Bytes ylo found that the concentration of oil in the initial sample of the soil was 2217 ± 10,4 mg / kg. The introduction of 84 g of the natural sorbent glauconite into the test sample led to a slight decrease in the concentration of oil products in the test soil sample. A two-fold increase in the mass of glauconite introduced contributed to a significant decrease in the mass concentration of oil products in the studied soil sample by 10.1 times in comparison with the control. The results obtained indicate the possible adsorption of petroleum products on the surface of granules of a natural sorbent. For the possible disposal of petroleum products contained in soil samples, bacteria B. pumilus were introduced into their composition . It was found that the exposure of soil samples with microorganisms within 30 days led to a decrease in the mass concentration of oil products by 10.3 times compared with the control. The highest efficiency was shown for the soil sample P4B. A decrease in the mass concentration of petroleum products by 14.9 times in comparison with the control was revealed. It is likely that the high intensity of a decrease in the concentration of petroleum products when B. pumilus is introduced into the samples both independently and in combination with glauconite granules indicates the hydrocarbon-oxidizing ability of this microorganism. Thus, it was found that the introduction into the soil samples contaminated with oil products of a strain of saprophytic bacteria B. pumilus, the natural sorbent of","PeriodicalId":176768,"journal":{"name":"Abstracts of The Second Eurasian RISK-2020 Conference and Symposium","volume":"90 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132827005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}