scholarly journals Investigation of the processes of dust processing gas cleaning of steelmaking industries

2021 ◽  
pp. 106-113
Author(s):  
S. L. Rimoshevsky ◽  
D. A. Prokopchuk ◽  
D. M. Golub
Keyword(s):  
Environmental Impact ◽  
Thermodynamic Calculation ◽  
Zinc Ferrite ◽  
Electric Steelmaking ◽  
Gas Purification ◽  
Zinc Extraction ◽  
Resource Base ◽  
Gas Cleaning

The article deals with the issues of processing of dust from electric steelmaking production by the method of thermodynamic extraction of iron, zinc and lead in order to reduce the environmental impact and increase the resource base of the industry. The paper presents various methods of zinc extraction from dust and gas purification, thermodynamic calculation of the decomposition and reclaiming of zinc ferrite.

Shale gas in Australia: a great opportunity comes with significant challenges

2013 ◽  
Vol 53 (2) ◽  
pp. 476
Author(s):  
David Warner
Keyword(s):  
Environmental Impact ◽  
Shale Gas ◽  
Petroleum Industry ◽  
Resource Planning ◽  
Department Of Energy ◽  
Resource Base ◽  
Great Opportunity ◽  
The Us ◽  
Gas Market ◽  
Commercial Landscape

Australia could have shale gas resources several times bigger than the existing conventional gas resource base, which is estimated at about 5,300 BCM (190 TCF) by Geoscience Australia (GA). The Australian Government has no estimate of potential shale gas resources. The US Department of Energy (EIA) in 2011 estimated Australian shale gas resources to be 400 TCF. The quantity of this estimate is supported by an Australian study—which estimates resources of 600 TCF—conducted by Advanced Well Technologies (AWT) in conjunction with DSWPET. While there are significant technical differences between the shale gas plays in the US and Australia, it is too early to tell if the technical differences are barriers. There are also significant differences in the commercial landscape. The lack of capacity in Australia has lead to much higher costs for drilling and fracture stimulation than in the US. The size of the domestic gas market is much greater in the US and its existing infrastructure allows for production to come onstream quickly. In Australia this infrastructure is not present in most areas and the domestic market cannot support another large gas development. Perhaps the greatest challenge to this great opportunity is politics. There is a public, hence political,perception that all gas sources have the same gasland problems. These perceptions can be changed. First, the petroleum industry and governments need to understand the potential size of the gas resource and the possible strategic opportunity for Australia. Also these parties need to recognise that the shale gas resources are often located away from areas of high social and environmental impact. Once these factors are understood by these parties, factual information about the environmental impact of shale gas plays in comparison with coal seam methane and other alternative gas supplies can be factored into gas resource planning.

scholarly journals Environmental impact assessment of industrial enterprises (on the example of objects of category I,II of environmental impact in the Samarkand region)

2021 ◽  
Vol 265 ◽  
pp. 04025
Author(s):  
Tanzila R. Madjidova ◽  
Gulmira S. Boboeva ◽  
Gulmira F. Keldiyarova
Keyword(s):  
Environmental Impact ◽  
High Efficiency ◽  
New Technologies ◽  
Rolling Stock ◽  
Gas Cleaning ◽  
Industrial Enterprises ◽  
Cleaning Equipment ◽  
Key Sectors ◽  
Reduction Of Emissions ◽  
Reduce Emissions

As a result, the implementation of measures to protect the atmosphere (the use of innovative technologies in the introduction of dust and gas cleaning equipment, the conversion of cars to gaseous fuel, the renewal of rolling stock, the implementation of the state program to reduce emissions), the stabilization of the environment is observed. It is necessary to carry out technical re-equipment of key sectors of the economy, the introduction of new technologies, as well as the stabilization and reduction of emissions of pollutants into the atmosphere. It is recommended to take additional measures to ensure that the amount of pollutants released into the atmosphere as a result of the operation of the facility does not exceed the permissible level, to install dust-collecting equipment that captures dust with high efficiency (up to 99.5%).

Reduction o Air Pollution from Fine Dust by Increasing Efficiency of Gas Emission Purification Sintering Furnaces

2021 ◽  
Vol 25 (12) ◽  
pp. 4-9
Author(s):  
E.V. Kiryushin ◽  
O.V. Pilyaeva ◽  
I.I. Shepelev ◽  
E.N. Eskova
Keyword(s):  
Air Pollution ◽  
Gas Purification ◽  
Fine Dust ◽  
Gas Emission ◽  
Atmospheric Air ◽  
Gas Cleaning ◽  
Waste Gas ◽  
Purification Unit ◽  
High Degree ◽  
Degree Of Purification

The installation of an additional stage of the "wet" waste gas purification unit at the alumina sintering furnaces ensured the achievement of a high degree of purification of gas emissions from fine impurities up to 96 % and the standards of maximum permissible emissions of solid pollutants into the atmosphere established for an industrial enterprise. The formed slude after gas cleaning is proposed to be sent for further processing to the hydrochemistry workshop, thereby ensuring its disposal without contamination of the natural environment. The analysis of air pollution indicators confirmed a decrease in emissions of solid pollutants in the atmospheric air of Achinsk.

scholarly journals Furnace ecology

2018 ◽  
pp. 50-57
Author(s):  
S. L. Rovin ◽  
L. E. Rovin ◽  
L. N. Rusaya ◽  
O. V. Gerasimova
Keyword(s):  
Energy Efficiency ◽  
Complex Systems ◽  
High Efficiency ◽  
Environmental Parameters ◽  
Gas Purification ◽  
Minimal Energy ◽  
Gas Cleaning ◽  
Relationship Of ◽  
The Relationship

The article studies the issues of dust and gas cleaning of emissions from smelting units, the analysis of the relationship of furnaces energy efficiency and their environmental parameters, the complex systems that insure high efficiency of gas purification which are aspirated from the melting units are provided, with minimal energy and investment costs.

scholarly journals Gate-to-Gate Life Cycle Assessment for Determining Carbon Footprint of Catalytic Converter Assembly Process

2017 ◽  
Vol 2 (1) ◽  
pp. 16-24
Author(s):  
A. N. Mustfizul Karim ◽  
Emrul Kays ◽  
Nur Aisyah Akmal Binti Rosland ◽  
Saravanan Tanjong Tuan
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Environmental Impact ◽  
Carbon Footprint ◽  
Environmental Concern ◽  
Catalytic Converter ◽  
Real Life ◽  
Resource Base ◽  
Automotive Manufacturing ◽  
Real Life Data

With the pursuit of embracing the circular economy, having upward trend in vehicle sales and environmental concern, sustainability has become an imperative part of the global automotive manufacturing strategies. One of the tactics to achieve this sustainable goal is to conserve and enhance the resource base by salvaging the embedded values from end-of-life product and for which, the remanufacturing can be considered as one of the most prominent epitome. Even though many of the auto parts like engine, transmissions, starters, alternators and etc. have been assessed for remanufacturability since last few decades, being a major component of a car body the Catalytic Converter (CC) still remains unfocused in literature. However, to examine the remanufacturability of CC, a comprehensive study for assessing its economic, social, and environmental impact is inevitable. Therefore, with an underlying aim of designing the remanufacturable CC, in this endeavour an attempt has made to evaluate the environmental impact of its welding operations by means of energy consumption through gate-to-gate life cycle assessment. Real life data are collected from a Local Malaysian CC manufacturer. The obtained results show that the welding section has a carbon footprint of 0.203 kgCO2e/unit with major emission coming from the plasma arc welding. In addition to that, it is also observed that the value of carbon footprint is not only sensitive to the emission factor and processing time, but also it is responsive to the nature of the processing operations. Certainly, this observation will motivate to change the product design from the prospect of remanufacturing.

scholarly journals 157 Estimation of Environmental Impact of Two Cropping Systems Using PLANETOR

HortScience ◽  
1999 ◽  
Vol 34 (3) ◽  
pp. 469B-469
Author(s):  
A. Kalo ◽  
P.H. Hoepner ◽  
S.B. Sterrett ◽  
J.F. Diem
Keyword(s):  
Soil Erosion ◽  
Environmental Impact ◽  
Cultural Practices ◽  
Cropping Systems ◽  
Weighted Average ◽  
Vegetable Production ◽  
Vegetable Crops ◽  
Resource Base ◽  
Negative Impacts

Long-term goals of reducing environmental impacts associated with agricultural activities must include economic sustainability as well as production feasibility. This study compared the potential economic and environmental impact of two specific cropping systems [wheat/soybeans (w/s) vs. selected vegetable crops with wheat/soybeans (veg/w/s)]. Profitability of w/s was lower than the veg/w/s system but demanded a smaller, less extensive resource base of labor and machinery with fewer conflicts in resource utilization rates. The PLANETOR computer program (Univ. of Minnesota) was used to analyze the potential negative environmental effects of growing a particular crop mix within these two systems. Although some of the vegetable crops exceeded the targeted soil loss tolerance value (T-value) of 3 t/ha, the weighted average of the veg/w/s system was below the target T-value for soil erosion. Analyses suggest that the profits from vegetables in the veg/w/s production more than offset the negative impacts on soil erosion and the veg/w/s system would be more economically feasible than w/s. Potential impact of pesticide leaching and runoff from vegetable production as calculated by PLANETOR was less than that from w/s. Specific cultural practices, including soil/tissue testing to manage nutrient applications, could reduce nitrogen/phosphorus movement. The veg/w/s system may offer the necessary profit margins to allow adoption of more environmentally friendly production alternative.

Preparation of zinc ferrite in the presence of carbon material and its application to hot-gas cleaning

Fuel ◽  
2004 ◽  
Vol 83 (6) ◽  
pp. 661-669 ◽  
Author(s):  
Na-oki Ikenaga ◽  
Yousuku Ohgaito ◽  
Hiroaki Matsushima ◽  
Toshimitsu Suzuki
Keyword(s):  
Carbon Material ◽  
Zinc Ferrite ◽  
Gas Cleaning ◽  
Hot Gas ◽  
Hot Gas Cleaning

scholarly journals Legal framework for environmental impact assessment in Vietnam: the challenges between the regulations and practice

2020 ◽  
Vol 164 ◽  
pp. 11008 ◽  
Author(s):  
Minh Tuyen Pham ◽  
Nguyen Khanh Bui ◽  
Roman Puzirevsky
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Global Economy ◽  
Legal Framework ◽  
Management Tool ◽  
Resource Base ◽  
Middle Income ◽  
Doi Moi ◽  
Natural Resource Base

After 30 years of economic reforms since the launch of Đổi Mới in 1986, Vietnam has recorded significant and historic achievements. From a poor, war-ravaged, centrally planned economy, which was closed off from much of the outside world, Vietnam has become a middle-income country with a dynamic market economy that is deeply integrated into the global economy. But growth has to a large extent come at the cost of the environment. Vietnam’s greenhouse gas emissions have grown the fastest in the region, while the environmental quality of its air, land, and water has deteriorated considerably. Water and air pollution have reached serious levels, especially near Hanoi and Ho Chi Minh City, posing major health risks. As the most important environmental management tool, Environmental Impact Assessment (EIA) is recognized by Vietnamese Government and international organizations in the management of the impacts of future development on the country’s natural resource base. EIA is the important Chapter of Law on environmental protection 2014 of Vietnam (which was passed by the 13 National Assembly at the 7th session on June 23, 2014). This article argue that while significant improvements have been achieved in the EIA legal framework, the challenges remains between the EIA regulations and practice. This article contend that the current EIA legal framework is poor and facing with challenges and that future developments of the EIA regulations in Vietnam should focus not only on legislative documents but also on improving capacity of EIA practitioners with strictly sanctions.

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