ASSESSMENT OF THE IMPACT OF TECHNOGENIC FORMATIONS FROM MULTICOMPONENT ORE PROCESSING WASTE ON THE ECOSYSTEMS OF MINING REGIONS

Author(s):  
M.V. RYLNIKOVA ◽  
◽  
D.N. RADCHENKO ◽  
M.V. TSUPKINA ◽  
A.E. KIRKOV ◽  
...  

The problem of developing gold deposits in the southern Urals from the point of view of assessing the environmental impact on the vegetation cover and living organisms of mountain territories is considered. The analysis of scientific papers devoted to such topics in the world is carried out. It is confirmed that long-term storage and storage of mining waste in existing and decommissioned storage facilities, represented by waste from ore processing, causes serious environmental damage to the environment in the areas of their location and adjacent territories. This is evidenced by high concentrations of toxic chemical elements in technogenic mineral raw materials, soil layer, vegetation cover and organs of living organisms, which is due to the removal of heavy metals from a large area of technogenic formations, along with dust and drainage drains. It is proved that these factors must be taken into account when assessing the level of environmental impact of gold-containing ore processing waste on the environment.

2002 ◽  
Vol 04 (04) ◽  
pp. 475-492 ◽  
Author(s):  
CHARLES KELLY

The linkages between disaster and environmental damage are recognized as important to predicting, preventing and mitigating the impact of disasters. Environmental Impact Assessment (EIA) procedures are well developed for non-ndisaster situations. However, they are conceptually and operationally inappropriate for use in disaster conditions, particularly in the first 120 days after the disaster has begun. The paper provides a conceptual overview of the requirements for an environmental impact assessment procedure appropriate for disaster conditions. These requirements are captured in guidelines for a Rapid Environmental Impact Assessment (REA) for use in disasters. The REA guides the collection and assessment of a wide range of factors which can indicate: (1) the negative impacts of a disaster on the environment, (2) the impacts of environmental conditions on the magnitude of a disaster and, (3) the positive or negative impacts of relief efforts on environmental conditions. The REA also provides a foundation for recovery program EIAs, thus improving the overall post disaster recovery process. The REA is designed primarily for relief cadres, but is also expected to be usable as an assessment tool with disaster victims. The paper discusses the field testing of the REA under actual disaster conditions.


Nanotechnology is a speedily increasing and innovating range of research, where advanced characteristics of resources manufactures on the nanoscale can be exploited as advantages for people at large through various methods or mechanisms of construction. Being a varied technical and scientific arena that brings and covers numerous application kinds, the contribution of nanotechnological innovations is immense for various sectors of construction industries. It also possesses a large future potential for ecological efficiency, which is dire need of the hour. In construction industry there are many factors involved to achieve the major goal of sustainability like smart design, planning through which energy can be saved, resource usage can be reduced and environmental damage can be avoided. No doubt, the application of nanotechnology materials and its various causes on the atmosphere and living organisms are not clearly defined yet which can become a problem. For instance, leakage of materials into the water resources, and seas, as well, discharge of nanoparticles into the air generating dust and exposure to harmful materials during various construction, maintenance and use etc. Considering tremendous revolution in Nanotechnological field there is an important aspect in relation to the impact of nanoparticles and nanomaterials on human health and environment which should be discussed at length. This paper intends to give a research review of current and near future, safety and eco-efficiency applications of nanotechnology to not only improve and maintain but also deal with certain future challenges and directions related to the sustainable development.


2018 ◽  
Vol 74 ◽  
pp. 11003
Author(s):  
Andreas Pramudianto

Basically each product or service has its own life cycle. Life Cycle Analysis Method can be used to assess the impact of an activity both production and service activities. Environmental Impact Assessment (EIA) or Analisis Mengenai Dampak Lingkungan (AMDAL) is one of the activities that must be fulfilled in order to obtain an environmental permit. EIA activities have a life cycle process that needs to be known and understood so that environmental permits can be obtained. Therefore this study aims to find out the use of the LCA method in EIA procedures. In addition, with the LCA method, EIA activities are expected to be well studied according to the function of this service. LCA can provide to reduce the least impact from environmental damage. This research will be useful for the development of environmental science, especially related to the study of environmental impacts, especially EIA. It is expected that the results of the study will provide a complete picture of the relevance of the LCA method with EIA and the benefits that can be taken. The results of this study will be an important recommendation for decision makers regarding the importance of EIA in development, especially sustainable development through the method used, namely LCA.


2021 ◽  
Vol 5 (33) ◽  
pp. 42-49
Author(s):  
Yu. Fomin ◽  
◽  
Yu. Demikhov ◽  
V. Verkhovtsev ◽  
N. Borisova

The work considers the mobility series, the features of the hydrogenous mobilization of uranium and elements-satellites of the material complexes of the mineral-forming systems in the weathering crust of uranium-ore albitites of the Ukrainian Shield. Chemical elements that are companions of uranium can enter both concentrating minerals and ordinary rock-forming minerals containing these elements. The first include native metals – gold, bismuth, lead; sulfides: Cu, Zn, Pb, Ni, Co; monazite, zircon. Examples of the second group of the minerals are feldspars with rubidium, strontium, lead; egirin, ribecite, sphen with vanadium. Samples of rocks to calculate the average content of chemical elements and their mobility were formed taking into account the composition of the rocks and the degree of weathering. Titanium, the least mobile element, was used as a conditionally stable element, for which, in fact, all calculations were performed. Approbation of the method at all levels, including the root base, disintegration zone, hydromica-kaolin and kaolin weathering crust, soil layer (B- and A-horizons) and scattering fluxes, showed quite satisfactory results. Wastes from the industrial development of uranium deposits of albite formation, that are (and will be) stored, being essentially a crushed mineral concentrate enriched in uranium and heavy metals, which in conditions of hypergenic processes conducive to oxidation and decomposition, undoubtedly pose a potential threat of environmental pollution . A significant part of uranium and related elements in all blocks of rocks that are subject to operational excavation can be classified as “mobile”, ie has a fairly high migration capacity. This form can be a source of contamination of groundwater and surface water, and soils. Calculations show that uranium in all areas of the weathering crust behaves as a mobile element, prone to scattering. The share of uranium removed from different zones is 25-42% (0.11-0.19 g/t), which in absolute terms is the maximum in the kaolin zone. The main role in the migration of radionuclides is played by water erosion under the influence of precipitation. Therefore, to reduce hydrogen pollution, it is necessary to provide underlayment of dumps with clay and carbonate rocks. To limit the impact of wind erosion, it is necessary to fill the dumps with a layer of inert soil.


Author(s):  
V.I. Golik ◽  
◽  
Yu.I. Razorenov ◽  
N.M. Kachurin ◽  
M.Yu. Liskova ◽  
...  

The issues of preventing chemical exposure of the products of mining and processing of mineral raw materials on the population of mining facilities are considered. The results are presented concerning assessment of the correlation between the intensity of chemical pollution of the infrastructure of mining enterprises and the health of miners and the population living in the vicinity of a mining enterprise by means of clinical and biochemical examination of residents. It is established that the negative effect of mining production on the health of the population is a consequence of development technologies with the abandonment of untreated ores in the cavities, where physicochemical processes of natural leaching are developing. It is shown that the known methods of fixing dumps reduce only the parameters of dust pollution without effecting the contamination of the territory with metal solutions, and the forms of finding chemical elements in the tailings of processing do not prevent their inclusion in the biological cycles of living creatures, therefore, the radical measure to prevent progressive morbidity is only the extraction of metals from the tailings of ore processing during disposal. It is established that the speed and direction of exomorphodynamic processes are determined by the parameters of movement of the mobile fractions of metallic minerals. The activity of natural leaching processes is a consequence of the development technologies and can be reduced by using controlled leaching of metal-containing minerals. The formula for the dependence of the parameters of chemical pollution on the distance to the pollution focus is obtained. The assessment of social damage from the effect of the polluted environment on health of the population only by expanses on the treatment of the population and social security services during disability is incorrect, because the impact of metals is much larger. The use of tailings for processing waste from the mining cycle after bringing it to a safe state in terms of metal content allows to reduce morbidity of workers and the population of residential areas of mining production.


Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Huimin Liu ◽  
Qiqiang Li ◽  
Guanguan Li ◽  
Ran Ding

The steel industry is facing problems such as serious environmental pollution and high resource consumption. At the same time, it lacks effective methods to quantify potential environmental impacts. The purpose of this work is to conduct a specific environmental analysis of steelmaking production in steel plants. The ultimate goal is to discover the main pollution of steelmaking and identify potential options for improving the environment. This paper uses life cycle assessment method to carry out inventory and quantitative analysis on the environmental impact of steelmaking system. Through analysis, the hazards are divided into four major categories, which are human health, climate change, ecosystem quality, and resources. The results show that molten iron has the greatest impact on human health, followed by the greatest impact on resources. The impact of scrap steel on human health ranks third. Molten iron is a key process that affects human health, climate change, ecosystems quality, and resources. In addition, processes such as fuels, working fluids, and auxiliary materials also cause certain environmental damage, accounting for a relatively small proportion. Optimizing the utilization of scrap steel and molten iron resources and improving the utilization efficiency of resources and energy are helpful to reduce the environmental hazards of steelmaking system.


2018 ◽  
Vol 10 (11) ◽  
pp. 4190 ◽  
Author(s):  
Rasadhika Sharma ◽  
Trung Nguyen ◽  
Ulrike Grote

Economic growth coupled with population increase and globalization have engendered structural changes in consumption patterns around the world. Contingent on their composition, these changes can be demanding on natural resources and pose unsustainable challenges for the environment. The paper aims to provide a general framework to assess the link between changing consumption patterns and their environmental impact by focusing on the rising beef demand in Vietnam. It draws from secondary literature and data to find that the increased beef demand in Vietnam is mostly met domestically, but there is a major dependency on imports. Within Vietnam, the rising demand has contributed substantially to the carbon footprint and land use and raised waste disposal concerns. To understand the impact of Vietnamese beef demand at the global level, the paper looks at Australia. Carbon footprint and land use are estimated to provide a perspective on the plausible scale of environmental damage that can be ensued in the future. Changes in consumption patterns are an integral part of our world and will play a significant role in determining the sustainable future of our planet. Therefore, it is important to attain a better understanding of the theme and its possible impact on the environment.


Author(s):  
Amanda Pacholak ◽  
Wojciech Smułek ◽  
Agnieszka Zgoła-Grześkowiak ◽  
Ewa Kaczorek

The continuous exposure of living organisms and microorganisms to antibiotics that have increasingly been found in various environmental compartments may be perilous. One group of antibacterial agents that have an environmental impact that has been very scarcely studied is nitrofuran derivatives. Their representative is nitrofurantoin (NFT)—a synthetic, broad-spectrum antibiotic that is often overdosed. The main aims of the study were to: (a) isolate and characterize new microbial strains that are able to grow in the presence of NFT, (b) investigate the ability of isolates to decompose NFT, and (c) study the impact of NFT on microbial cell properties. As a result, five microbial species were isolated. A 24-h contact of bacteria with NFT provoked modifications in microbial cell properties. The greatest differences were observed in Sphingobacterium thalpophilum P3d, in which a decrease in both total and inner membrane permeability (from 86.7% to 48.3% and from 0.49 to 0.42 µM min−1) as well as an increase in cell surface hydrophobicity (from 28.3% to 39.7%) were observed. Nitrofurantoin removal by selected microbial cultures ranged from 50% to 90% in 28 days, depending on the bacterial strain. Although the isolates were able to decompose the pharmaceutical, its presence significantly affected the bacterial cells. Hence, the environmental impact of NFT should be investigated to a greater extent.


2018 ◽  
Vol 74 ◽  
pp. 05005
Author(s):  
Laurence ◽  
Josephine Kasena

Every year, the total of plastic industry in Indonesia grows rapidly. Not only giving positive effects on economic, but industrial development also causing a negative impact on the environment. Those negative impacts are caused by inefficiently using of resources and industrial waste which could pollute the environment. Therefore, it is necessary to calculate the impact itself by using the Life Cycle Assessment (LCA) method. The LCA could help us to take better decision to improve the production process and products which could minimize the energy consumption and resources. PT XYZ is a plastic injection company. This company hasn't collected, calculated and analysed their products and production process which may contribute to environmental damage. Therefore, this study will collect the data about the potential environmental impact which caused by the product of PT XYZ. LCA was performed at plastic car battery container type "X" and type "Y" using IMPACT 2002+ method in SimaPro8 software. The result of data calculation showing that the potential environmental impact is more dominant in these categories: respiratory inorganics, non-renewable energy, and global warming. The component which caused the greatest potential for respiratory inorganics and global warming is coming from electrical energy consumption (lignite).


Author(s):  
M. A. Korotkevich ◽  
S. N. Azarov

The thermal impact of cable power lines and structural materials of cables on the environment has been considered. A quantitative evaluation of the thermal impact of electrical cables with cross-linked polyethylene insulation on the environment was carried out using the Elcut program. Analysis of the temperature field near the loaded cable line of 10 kV demonstrated high values of soil temperature that negatively affects its redox potential and living organisms. To evaluate the environmental impact of electrical cable materials, an approach has been developed that takes into account not only the toxicity of the materials but also their volumetric content in the cable. Cable lines with cables with traditional paper-oil insulation cause more damage to the environment than cable lines with cables, insulated with crosslinked polyethylene. The environment, in turn, also has an impact on the electrical cables: the values of long-term permissible load currents depend on the ambient temperature (when laying cables in the open air, in an earthen trench or in cable rooms). The impact of solar radiation on the thermal conditions of the electric cable is estimated. A comparative analysis of the complex environmental impact of electric cables with traditional insulation and insulation of crosslinked polyethylene demonstrated that unarmored cable with crosslinked polyethylene insulation at a voltage of 10 kV (regardless of the type of its shell) causes less damage to the environment than the same traditional cable throughout the considered temperature range on their surfaces.


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