scholarly journals Reducing of industrial atmospheric emissions using electrocyclone

2020 ◽  
Vol 7 (4) ◽  
pp. 169-172
Author(s):  
Anatolii Titov ◽  
John Shrimpton ◽  
Cheng Shao ◽  
Zhuohan Li
Keyword(s):  
Fly Ash ◽  
High Efficiency ◽  
Copper Smelting ◽  
Atmospheric Emissions ◽  
Sodium Percarbonate ◽  
Industrial Enterprises ◽  
Aerosol Emissions ◽  
Purification Of Gases

The article is focused on capturing process-related dust at industrial enterprises (in chemical, metallurgical and energy industries). An electrocyclone can be recommended for the purification of gases emitted into the atmosphere from particulates, such as sodium percarbonate (efficiency 97.5%–99.9%), iron-vanadium concentrate (98.0% - 99.9%), fly ash (99.0%–99.9%). However, the fumes from copper-smelting furnaces cannot be purified with high efficiency (less than 50–60%) because of their properties. Using electrocyclone will reduce the amount of aerosol emissions, and in some cases, let the emission reach the values set by standards.

"Recent Patents on the Triboelectrostatic Separation of Fly Ash"

2019 ◽  
Vol 13 ◽  
Author(s):  
Haisheng Li ◽  
Wenping Wang ◽  
Yinghua Chen ◽  
Xinxi Zhang ◽  
Chaoyong Li
Keyword(s):  
Fly Ash ◽  
Power Plants ◽  
High Efficiency ◽  
Separation Efficiency ◽  
High Reliability ◽  
Operating Conditions ◽  
Security Requirements ◽  
Unburned Carbon ◽  
Efficient Operation ◽  
Triboelectrostatic Separation

Background: The fly ash produced by coal-fired power plants is an industrial waste. The environmental pollution problems caused by fly ash have been widely of public environmental concern. As a waste of recoverable resources, it can be used in the field of building materials, agricultural fertilizers, environmental materials, new materials, etc. Unburned carbon content in fly ash has an influence on the performance of resource reuse products. Therefore, it is the key to remove unburned carbon from fly ash. As a physical method, triboelectrostatic separation technology has been widely used because of obvious advantages, such as high-efficiency, simple process, high reliability, without water resources consumption and secondary pollution. Objective: The related patents of fly ash triboelectrostatic separation had been reviewed. The structural characteristics and working principle of these patents are analyzed in detail. The results can provide some meaningful references for the improvement of separation efficiency and optimal design. Methods: Based on the comparative analysis for the latest patents related to fly ash triboelectrostatic separation, the future development is presented. Results: The patents focused on the charging efficiency and separation efficiency. Studies show that remarkable improvements have been achieved for the fly ash triboelectrostatic separation. Some patents have been used in industrial production. Conclusion: According to the current technology status, the researches related to process optimization and anti-interference ability will be beneficial to overcome the influence of operating conditions and complex environment, and meet system security requirements. The intelligent control can not only ensure the process continuity and stability, but also realize the efficient operation and management automatically. Meanwhile, the researchers should pay more attention to the resource utilization of fly ash processed by triboelectrostatic separation.

Models and Methods for Determining Damage from Atmospheric Emissions of Industrial Enterprises

2019 ◽  
pp. 256-267
Author(s):  
Elena Kushnikova ◽  
Ekaterina Kulakova ◽  
Sergei Alipchenko ◽  
Alexander Rezchikov ◽  
Vadim Kushnikov ◽  
...  
Keyword(s):  
Atmospheric Emissions ◽  
Industrial Enterprises

scholarly journals Modern problems of fixed capital management of the industrial enterprise

2021 ◽  
pp. 23-27
Author(s):  
Olena STANISLAVYK ◽  
Oleksandr KOVALENKO
Keyword(s):  
High Efficiency ◽  
Industrial Sector ◽  
Basic Element ◽  
Fixed Capital ◽  
Industrial Enterprise ◽  
Capital Management ◽  
Goods And Services ◽  
Industrial Enterprises ◽  
Long Run ◽  
Fixed Assets

Introduction. Production activity is impossible without the presence of fixed capital and its basic element – fixed assets, in the operation of which the depreciation fund is formed and the targeted use of depreciation deductions and quality reproduction of fixed assets of the enterprise are positioned to the fore. The importance of this issue increases due to need to enter markets with competitive goods and services, which leads to innovative and active activities of industrial enterprises, which require, above all, significant investments into the fixed assets. The purpose of the paper is to highlight the essence and modern problems of fixed capital management of industrial enterprise. Results. The paper explores the essence of fixed capital management of industrial enterprise and identifies modern key issues in this area facing managers of domestic industrial enterprises. The role of strategic and tactical planning of the process of reproduction of fixed assets in the management of fixed capital of the industrial enterprise and the reasons for its renewal are highlighted. The requirements for the formation of strategy and management system of fixed capital of the industrial enterprise are presented. The stages of formation of the effective strategy of fixed capital management under conditions of the modern market and the basic directions of activity of the industrial enterprise in this sphere are offered. The necessity of implementing the rational depreciation policy and correct revaluation of fixed assets is shown. The importance of using leasing as effective tool for investment and renewal of fixed assets of domestic enterprises of the industrial sector of economy is considered. Conclusion. For the effective management of fixed capital, it is important for industrial enterprises to perform a number of tasks, which involve the development of long-term strategy and tactics for the formation and effective use of fixed assets; determination of fixed capital renewal needs; adequate assessment of the conditions of fixed assets, maintaining the proper conditions of machinery and equipment; implementation of rational depreciation policy; finding acceptable sources of funding for the restoration of fixed capital, as well as finding more efficient ways of using the investment resources. It should allow the industrial enterprise to produce products, which are in demand, and ensure stable competitive positions and high efficiency in the long run.

RESEARCH OF COMPLEX MODIFICATION OF HEAVY CONCRETE

2021 ◽  
Vol 96 (4) ◽  
pp. 107-112
Author(s):  
YU.S. FILIMONOVA ◽  
◽  
E.G. VELICHKO ◽  
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Power Plants ◽  
High Efficiency ◽  
Thermal Power ◽  
Thermal Power Plants ◽  
Complex Chemical ◽  
Composition And Structure ◽  
Combined Use ◽  
Mineral Additive

Modification of the composition and structure of heavy concrete with the use of a complex chemical-mineral additive consisting of fly ash from thermal power plants, a superplasticizer, a high-valence hardening accelerator AC and a fine-dispersed clinker component is considered. Modified concrete is characterized by an increase in compressive strength at a brand age by 67%, a decrease in the water content of a concrete mixture by 13.6% and an improvement in its workability by 11-12 cm. With the combined use of a superplasticizer and a high-valence hardening accelerator AC a significant synergistic effect is observed in the format of enhancing their plasticizing effect. The high efficiency of the application of the mixed-dispersed clinker component has been established.

Management accounting in forest processing: market research and forecast of planned actions

2021 ◽  
pp. 28-41
Author(s):  
Gamlet Yakovlevich Ostaev ◽  
Grigory Rolanovich Alborov ◽  
Konstantin Akakievich Dzhikiya
Keyword(s):  
Business Processes ◽  
High Efficiency ◽  
Consumer Preferences ◽  
Management Accounting ◽  
Objective Assessment ◽  
Management Approach ◽  
Main Task ◽  
Market Conditions ◽  
Industrial Enterprises ◽  
Management Actions

The article reveals the key points of accounting and management actions in terms of studying market conditions, PR and forecasting planned actions. The main accounting and management tools in management accounting are: planning, management, accounting, organization, analysis and monitoring of business processes. Determination of the incurred costs of the business and its further sustainable development is the conceptual basis of management accounting. The aim of the study is to develop criteria for management accounting in the study of the sawn timber market and to study consumer demand for this product, identify consumer preferences, assess the frequency of purchasing products and factors affecting demand. The subject of the research is management accounting as a complex mechanism in terms of research (monitoring) market conditions, PR and forecast of planned actions. In accordance with this goal, the main task was determined: to predict the development of the market, adequately (in a timely manner, taking into account all factors) to respond to them, thereby ensuring high efficiency of economic activity, and strengthening its competitiveness in the Udmurt Republic. It is concluded that, despite the complexity and specifics of this type of activity, with a competent management approach, industrial enterprises in order to gain competitive advantages must constantly collect and process accounting and management information, including marketing information for an objective assessment of the external environment, analyze their own activities in order to reduce financial risks.

Research on the Application of Fly Ash in High Water Filling Material

2013 ◽  
Vol 807-809 ◽  
pp. 1124-1128
Author(s):  
Feng Yi Li ◽  
Lei Chen ◽  
Guang Qi Li ◽  
Wei Xin Chen ◽  
Peng Fei Wang
Keyword(s):  
Fly Ash ◽  
Power Plant ◽  
High Efficiency ◽  
High Water ◽  
Packing Material ◽  
Filling Material ◽  
Comprehensive Utilization ◽  
Push Forward ◽  
Water Filling ◽  
Utilization Ratio

Fly ash is a coal-fired waste from the coal-consumed power plant. It has become a great concern as to how fly ash should be treated properly at home. At present, the comprehensive utilization ratio of fly ash is just 30% and utilization ratio of fly ash from coal gangue power plant is less than coal-fired power plant. The effect of different fly ash added to the high-water filling material on the filling result was analyzed and field test of filling in mined-out area was conducted in the Babao vertical shaft + 3211 section of Tonghua coal mining group. The result shows that fly ash of gangue power plant added into the high-water packing material can lower the filling material cost effectively. This research can lead to push forward the utilization of fly ash with high efficiency.

scholarly journals Elimination of gaseous emissions of the absorption process in formalin production by integrating a vortex-type direct-contact condenser into a traditional process flow scheme

2019 ◽  
Vol 126 ◽  
pp. 00065 ◽  
Author(s):  
Leonid Moskalev ◽  
Sergei Ponikarov
Keyword(s):  
Direct Contact ◽  
Environmental Issues ◽  
Product Yield ◽  
Production Data ◽  
Gaseous Emissions ◽  
Atmospheric Emissions ◽  
Reaction Behavior ◽  
Industrial Enterprises ◽  
Proposed Model ◽  
The Difference

Currently, special consideration is given to environmental issues. Atmospheric pollution by gaseous emissions from industrial enterprises is caused by a variety of reasons, such as incomplete product yield, peculiarity of reaction behavior, or emissions resulting from the loss of the final product. This article describes gaseous emissions from the operation of the absorption plant for the production of industrial formalin. Various techniques for purifying gaseous emissions are shown. A modernized technological scheme model with an integrated vortex–type direct–contact condenser for absorbing methyl alcohol and formaldehyde vapors from contact gas is developed in the universal simulation package.This model enables the technological modes of industrial formalin production absorption processes to beselected. Ithas been revealed that the use of a vortex–type direct–contact condenser willminimize atmospheric emissions and increase resource efficiency. The magnitude of the difference between production data and calculated results for the proposed model turned out to be no more than 8%.

Treatment Mechanisms and Operation Conditions of Arsenic Removal from Copper Smelting Effluent Using Combined Process of Aeration Micro-Electrolysis and Flocculation

2012 ◽  
Vol 610-613 ◽  
pp. 2307-2318
Author(s):  
Yu Qi Liu ◽  
Yue Bin Feng ◽  
Xin Ying Wang ◽  
Jing Wang ◽  
Xiao Jun Xu
Keyword(s):  
High Efficiency ◽  
Arsenic Removal ◽  
Arsenic Concentration ◽  
Effluent Treatment ◽  
Treated Wastewater ◽  
Copper Smelting ◽  
Wastewater Discharge ◽  
Combined Process ◽  
Operation Conditions ◽  
Treatment Mechanisms

An effective combined process of aeration micro-electrolysis and flocculation was utilized to treat arsenic that incoming contaminate level was 153 mgL-1 from the metallurgical effluent. Treatment mechanisms and operation conditions were discussed which influenced the removal efficiency of arsenic. Under the optimal technological conditions, it was found that the removal efficiencies of COD and As were 92.5% and 99.7% respectively. The remain arsenic concentration in the treated wastewater was only 0.43mgL-1 and met National Wastewater Discharge Standard(GB8978-1996) in China. Analysis by SEM and EDS revealed that using combined process, most of As(III) could be oxidized to As(V), which led to the high efficiency of arsenic removal. In the meantime, most of other heavy metals, such as Cu, Pb and Ni, had been removed. Therefore, the combined process is regarded as a promising technology in the treatment of arsenic from copper smelting effluent. It has bright future in application.

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