scholarly journals Heavy Metals in Suburban Ecosystems of Industrial Centres and Ways of their Reduction

2016 ◽  
Vol 35 (3) ◽  
pp. 205-212
Author(s):  
Nikolay Vladimirovich Onistratenko ◽  
Elena Anatolievna Ivantsova ◽  
Andrey Alexandrovich Denysov ◽  
Denys Anatolyevich Solodovnikov
Keyword(s):  
Heavy Metals ◽  
Anthropogenic Impacts ◽  
Animal Husbandry ◽  
Cost Effective ◽  
Industrial Enterprises ◽  
Sources Of Pollution ◽  
Environmentally Safe ◽  
Safe Food ◽  
And Migration ◽  
The Impact

AbstractTechnogenic contamination of ecosystems is one of the main dangers of our time. In order to reduce the harmful effects of this contamination and to provide cost-effective and environmentally safe food production methods, we are forced to look for ways of reliable analysis of the environmental situation, the selection systems of animal husbandry and regulations for the degree of impact of pollutants on the elements of the agroecosystem. This article presents the results of studies aimed at assessing the plight of the environment of a large industrial centre, and its anthropogenic impacts on every element of the suburban ecosystems. It presents data on maintenance and migration of anthropogenous pollutants in the trophic chains of pasturable ecosystems of the suburb of Volgograd. The authors have listed the industrial enterprises as the key sources of pollution. The features of the distribution of xenobiotics in the tissues and organs of calves and heifers of different breeds were analysed in the study. Conclusions were drawn on the accumulation of heavy metals and arsenic in cattle, and the impact of this factor on the quality of production. A comparative assessment of the resistance of different breeds of cows to the action of toxicants in the environment of the Lower Volga region was carried out. Ways to decrease the impact of pollutants on the cattle organism have also been suggested. The article pays attention to the environmental pollution of the industrial centre, the influence of these processes on all elements of an ecosystem including humans, and offers ways to minimize the damage.

scholarly journals MODERN LENDING OF AGRICULTURE

2021 ◽  
Author(s):  
Anastasiya Zhuravleva ◽  
Tatiana Batrakova
Keyword(s):  
Crop Production ◽  
Animal Husbandry ◽  
State Regulation ◽  
Theory And Practice ◽  
Industrial Complex ◽  
State Support ◽  
Investment Activity ◽  
Complex Needs ◽  
Industrial Enterprises ◽  
The Impact

The purpose of the article is to study the main problems of lending to agro-industrial enterprises with state support in market relations and propose measures to implement a new mechanism of subsidized and compensatory budget support for agriculture, aimed at its effective functioning. Historically, Ukraine is an agro-industrial country with rich natural resources and opportunities. However, to make a decent profit, the agro-industrial complex needs regular cash infusions and complete modernization. Given these factors, farmers in Ukraine are increasingly resorting to such an ancillary method as a loan for agricultural development. The long history of the Ukrainian economy, multiplied by current trends in crop production and animal husbandry, forces banks to consider lending to agriculture as a promising profitable business, which can and should be lent. The urgency of the study is due to the growing need to address one of the priority sectors of the economy-agriculture, by increasing the role and availability of credit for farmers, improving lending conditions, improving the efficiency of monetary institutions lending to agricultural enterprises, as well as development forms of their support. Problems of improving the lending system, investment activity of enterprises, lending mechanism and state regulation in the field of agriculture were covered in the works of a number of scientists and practitioners: G. Bezorna, H. Borkhunov, I. Buzdalov, A. Gataulin, A. Golovanov, A. Gordeeva, L. Kolichev, K. Koroleva, A. Kupavykh, D. Murzin, E. Mezentsev, A. Ponomareva, E. Sagaidak, A. Sidoruk, Y. Trushin, D. Epstein and some others. In the foreign economic literature, the main attention is paid to the forms of state support for agricultural producers, assessment of the impact of subsidies in terms of efficient use of public funds and the functioning of agricultural banks, but at the level of microfinance. These problems are reflected in the works of foreign authors: N. Gow, K. Hoff, M. Zeller, A. Sarris, J. Swinnen, J. Stiglitz, J. Yaron, M. Schreiner, Le Min Tu, and others. The changing conditions of the market environment pose new challenges to the subjects of credit relations, and then there are problems of agricultural lending in the changing conditions of the country’s economy, which need to be addressed. Formulation of the goals of the article (task statement). The purpose of the article is to generalize the theory and practice of agricultural lending when there are new economic relations, financial and credit opportunities of the Ukrainian economy.

scholarly journals Adsorption and migration of heavy metals between sediments and overlying water in the Xinhe River in central China

2021 ◽  
Author(s):  
Yanqi Zhao ◽  
Ying Yang ◽  
Rongkun Dai ◽  
Sobkowiak Leszek ◽  
Xinyi Wang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Anthropogenic Activities ◽  
Great Influence ◽  
Central China ◽  
Overlying Water ◽  
Riverbed Sediments ◽  
Static Water ◽  
Bottom Mud ◽  
And Migration ◽  
The Impact

Abstract Long-term polluted rivers often lead to the accumulation of heavy metals in sediments. Anthropogenic activities or biological disturbances break the adsorption balance, causing them to return from the bottom mud to the overlying water and change the aquatic environment. In order to understand the variation of heavy metals between sediments and river water, we collected the riverbed sediments in the polluted Xinhe River and carried out static continuous infiltration and dynamic uninterrupted disturbance experiments. The leaching experiment shows that the absorbability of Cd and Pb is stronger than Cr in the sediment; at the same time, the properties of the medium have a great influence on the adsorption of heavy metals. The disturbance can prompt heavy metals in the sediment to resuspend into the overlying water. The impact is the greatest during the first 12 h, and the influence degree is stronger in the relatively static water than in the moving river. In addition, pH and other factors have different degrees of influence on the desorption of heavy metals.

scholarly journals CONTAMINATION OF SOILS BY HEAVY METALS AND THEIR INFLUENCE ON THE ENVIRONMENT IN BULGARIA

2019 ◽  
Vol 7 ◽  
pp. 982-987
Author(s):  
Tsvetelina Petrova ◽  
Iskra Simova ◽  
Martin Pushkarov ◽  
Rositsa Velichkova ◽  
Detelin Markov
Keyword(s):  
Heavy Metals ◽  
Current Paper ◽  
Mineral Fertilizers ◽  
Military Industry ◽  
Sources Of Pollution ◽  
Contamination Of Soils ◽  
The Military ◽  
The Impact ◽  
Different Sources

Heavy metals are one of the major pollutants. The main sources of pollution are industry, transport, the use of pesticides and mineral fertilizers in agriculture, the military industry, etc. Pollution is mostly around businesses, highways and treated terrains and they are polymetallic, mostly from Cu, Pb, Zn, Cd, Hg, As and others. In the current paper the main heavy metals for Bulgaria for the different sources of pollution are presented. An analysis of data for problem areas is made, according to sources of pollution. An analysis of the impact of pollutants on the environment is also conducted.

scholarly journals Enterosorption in the Treatment of Heavy Metal Poisoning

2021 ◽  
Author(s):  
Sergey Mikhalovsky ◽  
Oleksandr Voytko ◽  
Violetta Demchenko ◽  
Pavlo Demchenko
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Chronic Exposure ◽  
State Of The Art ◽  
Cost Effective ◽  
Heavy Metal Poisoning ◽  
Industrial Activities ◽  
Current State ◽  
Metal Poisoning ◽  
The Impact

Enterosorption is a cost-effective and efficient approach to reducing the impact of chronic exposure to heavy metals and radionuclides. As an auxiliary method to medical treatment, it can protect population chronically exposed to the intake of heavy metals or radioactivity due to industrial activities or in the aftermath of technogenic or natural accidents. This paper assesses the current state of the art in the treatment of acute and chronic heavy metal poisoning.

scholarly journals Composition of the magnetic phase of soils on the territory of the protected area “Chernyaevsky Forest“ (Perm)

2021 ◽  
Author(s):  
Anastasia Alexandrovna Azina ◽  
◽  
Andrey Alekseevich Vasiliev ◽  
Keyword(s):  
Heavy Metals ◽  
Forest Soils ◽  
Power Plants ◽  
Magnetic Particles ◽  
Magnetic Phase ◽  
Thermal Power ◽  
Environmental Pollutants ◽  
Industrial Enterprises ◽  
Sources Of Pollution ◽  
Common Group

The territories of industrial cities are objects of active human influence on various natural processes. One of the most acute problems of the present time is the contamination of soils with heavy metals (HM). The main carrier phase of TM in urban soils is technogenic magnetic particles. A common group of particles of technogenic origin are magnetic spherules. The origin of magnetic spherules is associated with the work of industrial enterprises of metallurgical profile, thermal power plants and motor transport. The study of the morphology and composition of the magnetic phase of the soil allows us to identify the sources of pollution. According to the results of magnetic susceptibility, the content of heavy metals and magnetic particles in soils, the level of contamination and their ability to resist it are evaluated. Forest soils are the most sensitive to pollution. Therefore, the study of the composition and properties of magnetic spherules as potential environmental pollutants in Perm is relevant. The composition and properties of magnetic spherules of forest soils in Perm remain poorly understood.

scholarly journals Overview of integrated phytoremediation for heavy metals contaminated soil

2018 ◽  
Vol 1 (4) ◽  
Author(s):  
Tzung-Yuh Yeh ◽  
Chitsan Lin
Keyword(s):  
Heavy Metals ◽  
Contaminated Soil ◽  
Metal Ion ◽  
Large Scale ◽  
Chelating Agent ◽  
Cost Effective ◽  
Heavy Metals Removal ◽  
Metals Removal ◽  
Cost Effective Approach ◽  
Environmentally Safe

Heavy metal contaminated soil due to industrial, agricultural and municipal activities is becoming a global concern. Heavy metals severely affect plants, animals and human health. A suitable technology is necessary for heavy metals removal because it cannot self-decomposition as organic compounds. Among the various technologies surveyed, phytoremediation is one of the safest, most innovative, environmental friendly and cost-effective approach for heavy metals removal. Nevertheless, traditional phytoremediation practices pose some limitations such as long processing time, unstable treatment efficiency and limited application at large scale. In many methods proposed to improve phytoremediation, integrated phytoremediation has been studied in the recent years. Integrated phytoremediation use chelating agents and phytohormones to enhance phytoremediation. This is an environmentally safe, saving time and relative high effective method. Results showed that the association of a metal ion and a chelating agent to form chelates helps to maintain the availability of metals in the soil for the uptake of plants. Phytohormones supply nutrients for the soil to support vegetable growth. Therefore, integrated phytoremediation is a promising solution to overcome the disadvantages of conventional phytoremediation. It should be taken commercialization and need more applied projects in this field to demonstrate and clarify the real potential of this technology. In view of above, this manuscript reviews the mechanism and the efficiency of integrated phytoremediation for heavy metals in contaminated soil to give an overview of this technology. 

scholarly journals Nanoscale Configuration of Clay-Interlayer Chemistry: A Precursor to Enhancing Flame Retardant Properties

2021 ◽  
Author(s):  
Sanjiv Sonkaria ◽  
Hyun Joong Kim
Keyword(s):  
Flame Retardants ◽  
Cost Effective ◽  
Important Concern ◽  
Chemical Significance ◽  
Environmentally Safe ◽  
Flame Retardant Properties ◽  
Underlying Mechanisms ◽  
Low Dimensional ◽  
The Impact ◽  
Clay Interlayer

Nanomaterials are proving to be pivotal to the evolution of controllable, cost-effective and environmentally safe technologies. An important concern is the impact of low-dimensional compositional materials and their ability to significantly reduce the hazardous nature of flame retardants that are reputably harmful through unchecked inhalation. While eco-friendly and recyclable alternatives are necessary requirements to function as replacements for the ‘Next Generation’ of flame retardants, the underlying ‘Chemistry’ at the nanoscale is unfolding unlocking vital clues enabling the development of more effective retardants. In this direction, the dimensional order of particles in naturally occurring nanoclay materials and their associated properties as composites are gaining increasing attention as important constituents of flame retardants. In this review, we examine closer the compositional importance of intercalated/exfoliated nanoclay networks essential to retardant functionality exploring the chemical significance and discussing underlying mechanisms where possible.

Meat Production and the Environment

1994 ◽  
Vol 23 (2) ◽  
pp. 115-122 ◽  
Author(s):  
Eystein Skjerve
Keyword(s):  
Heavy Metals ◽  
Crop Production ◽  
Global Climate ◽  
Animal Husbandry ◽  
Meat Production ◽  
Environmentally Safe ◽  
Contamination Of Soils ◽  
Environmentally Sound ◽  
Regional Contamination ◽  
Soil And Water

During the coming decades changes in the global climate are likely to influence agriculture, including meat production, and may cause a shift in crop production and grazing areas. Regional contamination of soils and feed with heavy metals and organic chemicals, as well as radioactive contamination, might limit animal husbandry to certain regions. Conversely, meat production has a great impact on the environment, its effects ranging from destruction of vegetation and desertification in dry or cold regions to pollution of soil and water by manure in areas with intensive animal husbandry. A more environmentally sound animal husbandry should be promoted, but such a policy will in the immediate future raise conflicts about what is economically feasible and environmentally safe.

scholarly journals Geochemical Impact of Kholodninsk Lead-zinc Deposit on Aquatic Landscapes of Northern Part of the Baikal Region

2019 ◽  
Author(s):  
Keyword(s):  
Heavy Metals ◽  
Lake Baikal ◽  
Chemical Elements ◽  
River Pollution ◽  
Water Area ◽  
Normative Values ◽  
Significant Excess ◽  
Sources Of Pollution ◽  
Aquatic Landscapes ◽  
The Impact

The features of pollution of aquatic environments (river and lake) in the area of impact of Grodnenskoe polymetallic mine, located in the water basin of the lake Baikal (Republic of Buryatiya) is considered. The main existing sources of pollution, the degree of toxicity and the scale of the impact on the drainage watercourses, as well as the peculiarities of transportation of pollutants were determined. Existing spatial zones of ecological risk for aquatic landscapes associated with modern geochemical impact of Kholodninskoe mine were revealed. Today, it is a part of the Kholodnaya River basin, which flows near the mine and receives water streams from abandoned tunnels. In the waters of these streams very high concentrations of pollutants (a number of heavy metals) have been revealed. They are hundreds and thousands times higher than the maximum permissible concentration. After the confluence of streams with the Chpolodnaya River pollution zone have been formed, within which the concentration of zinc in the waters of the river exceeds the normative values. For the TyyaRiver, which drains the ore body, but does not receive streams from the tunnels, significant excess of standards for the heavy metals content have not been found. Directly in the water area of the Lake Baikal, including the Gulf of Angarskiy Sor, where the Kholodnaya River flows, significant excess of permissible values was not identified, either. Based on the analysis of the selected samples, Conclusions based on the selected samples analysishave been made on specific featuresof current chemical elements migration in the «Kholodnaya River – Lake Baikal» system at the present level of economic activity, as well as the prospects for the future.

THE PROBLEM OF ECOLOGICAL RISK ZONES IN THE COASTAL AREAS OF THE CRIMEA

2019 ◽  
pp. 59-73
Author(s):  
Natalya Vetrova ◽  
Tatyana Ivanenko ◽  
Anastasiya Gaisarova ◽  
Emran Mennanov
Keyword(s):  
Solid Waste ◽  
Drainage System ◽  
Environmental Safety ◽  
Coastal Areas ◽  
Southern Coast ◽  
Sources Of Pollution ◽  
The Crimea ◽  
Environmentally Safe ◽  
High Level ◽  
The Impact

Ensuring environmentally safe conditions for the use and development of coastal areas, which usually have a high level of urbanization, is an important engineering and socio-economic task, since it requires tak-ing into account environmental factors of natural and man-made environments when optimizing planning solutions for development and organization of activities. The work is devoted to the study and identification of areas of environmental risk in the current resort and recreational, residential and industrial areas, com-plex environmental conditions and prospects for the development of coastal areas of the Crimea (for exam-ple, recreational complexes of the southern coast of Crimea). When conducting research of problem areas, the structure of the drainage system, with an emphasis on stormwater, areas of municipal solid waste (MSW) and the impact of highways, has been studied in detail. Conducted researches allowed to establish for all in-vestigated water objects changes of water quality due to the flow of non-canalized domestic sewage, the storm sewers, sewage waters of individual small private enterprises, the unorganized surface drain during rains, a high recreational load on separate beaches. The highest level of pollution, including microbiological, coastal marine waters are observed when they are to several sources of pollution at the same time. Considered possi-ble measures to reduce or overcome negative processes in the environment. In order to improve the ecologi-cal condition and recreational value of coastal beaches, it is necessary to redistribute the flow of residents throughout the coastal zone, to solve the problems of water supply, sanitation of territories for the placement of solid waste and other waste, and to take preventive and technical measures for the protection of coastal recreational zones. The research results can be used in the development of projects for the reconstruction of the territory of coastal settlements of the southern coast of Crimea while ensuring environmental safety.

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