Geoecological assessment of territories on which gas condensate field facilities were liquidated

2020 ◽  
pp. 67-72
Author(s):  
V.V. Seratirova ◽  
Y.N. Pilnik
Keyword(s):  
Environmental Pollution ◽  
Gas Condensate ◽  
Environmental Restoration ◽  
Tundra Zone ◽  
Far North ◽  
Urgent Task ◽  
Environmental Requirements

A typical section of the tundra zone of the Far North is considered here as an object of research. Such territories slowly recover after technogenic development. Therefore, an urgent task is an assessment of the environment in the zone of the gas condensate field facilities. Carrying out such assessment before the start of reclamation makes it possible to realize the company's compliance with environmental requirements in the process of production activities, assess the tendency of environmental pollution and determine the main problems of environmental restoration.

Reclamation of Technogenic Disturbed Landscapes of the Far North

2018 ◽  
Vol 22 (8) ◽  
pp. 19-23
Author(s):  
N.A. Voronkova ◽  
I.F. Khramtsov ◽  
A.A. Miroshnichenko
Keyword(s):  
Active Layer ◽  
Mineral Nutrition ◽  
Gas Condensate ◽  
Perennial Grasses ◽  
Biologically Active ◽  
Far North ◽  
Progressive Succession ◽  
Selection Of Species ◽  
Technical Measures ◽  
Selection Of

The peculiarity of progressive succession in the damaged territories of the Yamburg gas condensate field is considered. It is established that the reclamation of technogenic disturbed landscapes is accelerated by the use of a complex of agro technical measures, including the selection of species of perennial grasses and the optimization of mineral nutrition. Studies carried out in the Yamburg gas condensate field in areas lacking of the biologically active layer have developed elements for soil and vegetation reclamation.

Development of individual elements of the technology for growing determinant tomato hybrids on subirrigation aeroponics "Fitopiramida "

2020 ◽  
Author(s):  
Kh. Farawn ◽  
◽  
V.I. Leunov ◽  
T.A. Tereshonkova ◽  
M.N. AL-Rukabi
Keyword(s):  
Environmental Pollution ◽  
Production Technology ◽  
Test Results ◽  
Tomato Production ◽  
Yield Increase ◽  
Vegetable Products ◽  
Urgent Task ◽  
Early Ripening ◽  
Low Volume ◽  
Selection For

In modern conditions of progressive environmental pollution, the need to save water and electricity, the production of fresh vitamin, environmentally friendly vegetable products on multi-tiered plants can be considered an urgent task. The article discusses the results of experiments on the development of individual elements of tomato production technology on a hydroponic multi-tiered pipe growing plant "Fitopiramida ". It was revealed that 2 foliar dressings at a dose (N: P: K 10:54:10) 2.5 g / l + Maxifol 2 g / l) - have a significant effect on the productivity and productivity of determinant tomato hybrids Flame F1 and Rosana F1, providing a yield increase in comparison with the control by 7.87 kg / m2 and 2.52 kg / m2, respectively. Testing of 24 varieties and hybrids of the determinant type made it possible to identify the 3 most early ripening varieties with a ripening period of 85-90 days. Based on the analysis of the test results, the directions of tomato selection for the conditions of low-volume technology are outlined. The main features are formulated for the determinant hybrid model for the " Fitopiramida " technology.

What will happen when microorganisms “meet” photocatalysts and photocatalysis?

2020 ◽  
Vol 7 (3) ◽  
pp. 702-723 ◽  
Author(s):  
Yaocheng Deng ◽  
Zaiyun Li ◽  
Rongdi Tang ◽  
Kai Ouyang ◽  
Chanjuan Liao ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Production Technology ◽  
Energy Production ◽  
Environmental Restoration ◽  
Energy Shortage

In recent years, photocatalytic technology has been widely studied as an environmental restoration technology and energy production technology to solve the two crises of energy shortage and environmental pollution.

scholarly journals MODELING OF THE COMBUSTION PROCESS IN A DIESEL ENGINE

2021 ◽  
Vol 2 (446) ◽  
pp. 68-73
Author(s):  
A. M. Dostiyarov ◽  
D. R. Umishev ◽  
G. B. Saduakasova ◽  
A. K. Mergalimova ◽  
B. Ongar
Keyword(s):  
Diesel Engine ◽  
Fuel Efficiency ◽  
Combustion Process ◽  
Gaseous Fuel ◽  
Liquid Fuels ◽  
Work Processes ◽  
Toxic Emissions ◽  
Urgent Task ◽  
Environmental Requirements ◽  
Combustion Processes

The issues of combustion processes and the organization of the combustion workflow in diesel engines are relevant in view of the tightening of economic and environmental requirements for them. The problem of saving liquid fuels remains one of the most acute in the provision of fuel and energy resources. The development of highly efficient methods for organizing work processes when burning natural gas in a compressed or cryogenic state in the cylinders of internal combustion piston engines and determining ways to further reduce toxic emissions, increase fuel efficiency and reliability in promising gas engines is an urgent task. Mathematical modeling of liquid fuel combustion is a complex task, since it requires taking into account a large number of complex interrelated processes and phenomena. The article presents a simple 3-D model of cylinder diesel tractor engine D 144, the re- sults of numerical simulation of combustion of liquid and gaseous fuel in the cylinder of the diesel engine D-144. The article presents the results of modeling, including graphs of the dependence of nitrogen oxides, particles in outgoing gases, depending on the consumption of gaseous fuel in the form of pure methane. Additionally, tempe- rature and velocity contours are shown. The corresponding conclusions are made.

scholarly journals The assessment of the environmental impact of the waste sludge and hazardous chemicals in the arroyo of Yasynov city of Kamyanske

2021 ◽  
pp. 67-75
Author(s):  
G. Vovkodav ◽  
О. Chernyakova ◽  
К. Shcherbina
Keyword(s):  
Environmental Impact ◽  
Environmental Pollution ◽  
Technical Documentation ◽  
Hazardous Chemicals ◽  
Circulating Water ◽  
Industrial Enterprises ◽  
Geochemical Parameters ◽  
Urgent Task ◽  
The Impact ◽  
The City

The main structures of tailings and sludge facilities are tailings and sludge storage facilities, tailings and sludge hydraulic transportation facilities and circulating water supply facilities. Therefore, the assessment of the environmental impact of the sludge storage of waste and hazardous chemicals in the Yasinova arroyo of the city of Kamyanske is an urgent task for scientists and workers of the ore-processing industrial enterprises. The aim of the work is to assess the impact on the environment of the sludge storage of waste and hazardous chemicals in the Yasinova arroyo of the city of Kamyanske. The object of the study is the process of environmental pollution due to the activity of sludge from waste and hazardous chemicals in the Yasinova arroyo of the city of Kamyanske. The research subject is the reduction of the level of environmental pollution during the activity of the sludge storage’s waste and hazardous chemicals in the Yasinova arroyo of the city of Kamyanske. The initial data of the laboratory analysis of water samples were provided by the laboratory of OJSC Dniproazot. Regulatory and technical documentation is provided by the Department of Environmental Protection of the Department of Ecology and Natural Resources of the city of Kamyanske. The ecological situation in Kamyanske has long been characterized as a crisis. A significant excess of geochemical parameters of some elements in soils was recorded. Particular attention should be paid to the content of Ce and REE in the polymineral substance of tailings. Exceedances of the maximum concentration limits of Ni and Cu in the Konoplyanka River, which flows in the immediate vicinity of the tailings; which suggests an assumption that there is a migration of these elements from the tailings with groundwater and their accumulation near the river.

Geographical Distribution Of Dioxins, Cadmium And Mercury Concentrations In Reindeer Liver, Kidneys And Meat In The Russian Far North

2021 ◽  
Author(s):  
Dmitry A. Makarov ◽  
Vladimir V. Ovcharenko ◽  
Elena A. Nebera ◽  
Alexander I. Kozhushkevich ◽  
Andrey A. Shelepchikov ◽  
...  
Keyword(s):  
Environmental Pollution ◽  
Large Scale ◽  
Agricultural Sector ◽  
Reindeer Herding ◽  
Far North ◽  
Persistent Pollutants ◽  
Seasonal Migrations ◽  
Local Sources ◽  
Reindeer Population ◽  
Regions Of Russia

Abstract Reindeer herding is a vitally important agricultural sector in the Russian Far North. It is believed, that Nothern ecosystems are prone to accumulation of persistent pollutants for the reasons of trophical chains, features and climate. Reindeers graze on vast areas, having seasonal migrations on distances up to hundreds kilometers in one side in North-South direction, that increases likehood to cross a locally polluted area. Here we present results of a large-scale countrywide study of reindeer liver, kidneys and meat pollution by dioxins, cadmium and mercury. Samples were taken in 2015-2020 years from 41 locations in 8 reindeer-herding regions of Russia. Dioxins were determined in 383 samples of liver and 13 of meat, cadmium and mercury – in 505 samples of liver, 315 of kidneys and 22 of meat. Dioxin pollution has shown a clear geographical trend: liver concentrations gradually decrease from the Western to the Eastern parts on the country, with the highest concentration of 76.5 pg/g of fat WHO-TEQ. The following factors are likely to explain the discovered trend: localization of chemical enterprises and density of reindeer population. The highest concentrations of metals were found in kidneys (7.3 mg/kg of cadmium and 1.1 mg/kg of mercury). The contribution of local sources to cadmium and mercury pollution was found to be less, than expected. We also speculate, that reindeer liver may serve as a good additional indicator of environmental pollution by the investigated contaminants.

scholarly journals Recruitment Neutralizers of Hydrogen Sulfide to Produce a Fuel Oil of Astrakhan Gas Processing Plant

2021 ◽  
Vol 133 (2) ◽  
pp. 12-15
Author(s):  
O. N. Karatun ◽  
◽  
A. Yu. Morozov ◽  
T. N. Fedulaeva ◽  
E. O. Yakusheva ◽  
...  
Keyword(s):  
Hydrogen Sulfide ◽  
Gas Condensate ◽  
Fuel Oil ◽  
Raw Material ◽  
Processing Plant ◽  
Gas Processing ◽  
Urgent Task ◽  
Industrial Use ◽  
Selection Of ◽  
Absorption Of Hydrogen

The content of hydrogen sulfide in the gas condensate of the Astrakhan gas condensate field, which is the raw material of the Astrakhan gas processing plant (Astrakhan GPP), is about 26% by volume. The high content of sulfur compounds in the reservoir mixture leads to an increased content in the fraction of >350°C, which is obtained during the primary fractionation of stable condensate. The selection of an effective reagent for the absorption of hydrogen sulfide and mercaptans from fuel oil is a very urgent task that is important for the company’s economy. The results of laboratory tests of reagents-neutralizers are the first stage of admission to industrial use at the Astrakhan GPP. This article is devoted to the search for analogs of reagents-neutralizers for reducing hydrogen sulfide and mercaptans in the fuel oil of the Astrakhan GPP.

Identification of Pulmonary Deposits from a Sandpaper Worker: A Study by Electron Microscopy and X-Ray Microanalysis

1982 ◽  
Vol 40 ◽  
pp. 52-53
Author(s):  
S. K. Peng ◽  
M.A. Egy ◽  
J. K. Singh ◽  
M.B. Bishop
Keyword(s):  
Electron Microscopy ◽  
Environmental Pollution ◽  
Rare Case ◽  
Interstitial Fibrosis ◽  
X Ray ◽  
Documented Case ◽  
Etiologic Agents ◽  
Pulmonary Interstitial Fibrosis ◽  
Gold Miners ◽  
Pulmonary Changes

Electron microscopy and energy dispersive x-ray microanalysis (EDXA) are found to be very useful tools for identification of etiologic agents in pneumoconiosis or interstitial pulmonary disorders. Pulmonary interstitial fibrosis and granulomatosis are frequently associated with occupational and environmental pollution. Numerous reports of pneumoconiosis in various occupations such as coal and gold miners are presented in the literature. However, there is no known documented case of pulmonary changes in workers in the sandpaper industry. This study reports a rare case of pulmonary granulomatosis containing deposits from abrasives of sandpaper diagnosed by using EDXA.

Identification of Maize Rayado Fino Virus by Immunoelectron Microscopy

1985 ◽  
Vol 43 ◽  
pp. 636-637
Author(s):  
O. E. Bradfute
Keyword(s):  
Electron Microscopy ◽  
Zea Mays ◽  
Costa Rica ◽  
Severe Disease ◽  
Rabbit Serum ◽  
Normal Rabbit Serum ◽  
Virus Particles ◽  
Far North ◽  
Maize Rayado Fino Virus ◽  
Antibody Coating

Maize rayado fino virus (MRFV) causes a severe disease of corn (Zea mays) in many locations throughout the neotropics and as far north as southern U.S. MRFV particles detected by direct electron microscopy of negatively stained sap from infected leaves are not necessarily distinguishable from many other small isometric viruses infecting plants (Fig. 1).Immunosorbent trapping of virus particles on antibody-coated grids and the antibody coating or decoration of trapped virus particles, was used to confirm the identification of MRFV. Antiserum to MRFV was supplied by R. Gamez (Centro de Investigacion en Biologia Celular y Molecular, Universidad de Costa Rica, Ciudad Universitaria, Costa Rica).Virus particles, appearing as a continuous lawn, were trapped on grids coated with MRFV antiserum (Fig. 2-4). In contrast, virus particles were infrequently found on grids not exposed to antiserum or grids coated with normal rabbit serum (similar to Fig. 1). In Fig. 3, the appearance of the virus particles (isometric morphology, 30 nm diameter, stain penetration of some particles, and morphological subunits in other particles) is characteristic of negatively stained MRFV particles. Decoration or coating of these particles with MRFV antiserum confirms their identification as MRFV (Fig. 4).

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