The results of field, analytical, and experimental research at a number of production facilities reflect the properties of oil-contaminated soils in 3 landscapes: the permafrost treeless Arctic ecosystem, boreal forest, and temperate-climate grassland-woodland ecotone. Laboratory studies have revealed the concentrations of petroleum hydrocarbons in soils, ranging from medium levels of 2000–3000 mg/kg to critical figures over 5000 mg/kg, being 2–25 times higher than the permissible content of oil products in soils. The experimentally applied thermal effects for the oil products desorption from the soil allowed finding an optimal regime: the treatment temperature from 25 to 250 °C reduces the concentrations to an acceptable value. The conditions are environmentally sound, given that the complete combustion point of humates is ca. 450 °C. The outcomes suggest the eco-friendly solution for soil remediation, preserving the soil fertility in fragile cold environments and in more resilient temperate climates, where revitalized brownfields are essential for food production.
The need for a qualitative presentation of data becomes more and more obvious every year. The ability to dynamically display information, the information relevance, the maximum efficiency of management decisions with minimal labor costs - it is on these principles that modern GIS should be built to manage the large enterprises. This article discusses the most promising way to create a GIS based on laser scanning data for enterprise management. The method of creating a GIS considered in the article, the advantage of the 3D model as the GIS basis, 3D scan data conversion availability, the economic investments analysis and the example of the pilot version of the 3D GIS allow to evaluate all the advantages of integrating GIS laser scanning technologies. We have studied the materials from foreign sources, affecting the possibility of such technologies joint use. The research purpose in this article is to substantiate the possibility of creating a 3D GIS based on laser scanning data. Conclusions are also made about the main advantages and disadvantages of working with such systems.
The analysis of the main environmental consequences of leaks and local spills of petroleum products at the enterprises of the mineral resource complex is presented. It is established that the problem of soil contamination with petroleum products at the facilities of the mineral resource complex and enterprises of other industries is caused by significant volumes of consumption of the main types of oil products. Based on the results of the author's previous field research, a series of experiments was carried out, consisting in modeling artificial soil pollution with petroleum products such as gasoline, diesel fuel, highly refined oil, motor oil, and transmission oil, followed by their purification by heat treatment at temperatures of 150, 200, and 250 °C. The 250 °C limit of the heating temperature was set due to the need to partially preserve the structure and quality of the soil after heat treatment to preserve its fertility. When the processing temperature rises to 450 °C, all humates are completely burned out and, as a result, productivity is lost. Confirmation is provided by the results of experiments to determine the humus content in uncontaminated soil and soil treated at different temperatures. It was found that at a maximum processing temperature of 250 °C, about 50 % of the initial organic carbon content is preserved. According to the results of the conducted experimental studies, the dependences of the required processing temperature on the concentration of petroleum products to reduce the concentration of petroleum products to an acceptable level have been established. The methodology of thermal desorption cleaning of soils with varying degrees of contamination at enterprises of the mineral resource complex is presented.
The article touches upon the issue of the application of the technology of laser scanning in archaeological research of various monuments of architecture, culture and antiquity. The authors consider the principles of laser scanning, its main types (ground, mobile and air), as well as the global experience of using airborne laser scanning in archeology on the example of individual countries. The research describes the actions to address the problem of introducing this technology into archaeological research taken in relation to the monument of antiquity-Red October settlement near Temriuk, located in the Krasnodar Territory, as well as instruments and software used in this process. According to the results, the authors made the conclusions about the main advantages and disadvantages of laser scanning as a tool for research in archeology. In addition they presented in comparison the alternative methods in the form of the photogrammetric method.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.