scholarly journals Resource Utilization of Solid Wastes from Industry and Mining Industry in the Building Materials Field

2019 ◽  
Vol 310 ◽  
pp. 022023
Author(s):  
Hao Chen
Keyword(s):  
Resource Utilization ◽  
Building Materials ◽  
Mining Industry ◽  
Solid Wastes

Development of Sustainable Alternative Building Materials from Quarry Dust

2018 ◽  
Vol 761 ◽  
pp. 181-188
Author(s):  
Ehud Cohen ◽  
Gabriela Bar Nes ◽  
Alva Peled
Keyword(s):  
Fly Ash ◽  
Building Material ◽  
Building Materials ◽  
Waste Product ◽  
Mining Industry ◽  
Chemical Properties ◽  
High Volume ◽  
Waste Products ◽  
Quarry Dust ◽  
And Chemical Properties

The main goal of our work is to develop an alternative building material based on “zero waste” objective, thus creating commercially valuable products from materials that are otherwise high-volume waste products. Fine dolomitic quarry dust is a waste product manufactured in several millions of cubic tons each year in the mining industry of Israel. Our study examines a sustainable and useful solution to use this quarry dust (QD) as a part of fly ash based geopolymeric systems. Mechanical, thermal and chemical properties were examined and analyzed.

scholarly journals Radioactivity of Five Typical General Industrial Solid Wastes and its Influence in Solid Waste Recycling

Minerals ◽  
2019 ◽  
Vol 9 (3) ◽  
pp. 168 ◽  
Author(s):  
Zhihui Shen ◽  
Qin Zhang ◽  
Wei Cheng ◽  
Qianlin Chen
Keyword(s):  
Solid Waste ◽  
Building Materials ◽  
Absorbed Dose ◽  
Waste Recycling ◽  
Solid Wastes ◽  
Radium Equivalent Activity ◽  
Limit Values ◽  
Industrial Solid Waste ◽  
Electrolytic Manganese ◽  
Electrolytic Manganese Residue

The level of radionuclides is an important index for the preparation of building materials from industrial solid waste. In order to investigate the radiological hazard of five kinds of typical general industrial solid wastes in Guizhou, China, including fly ash (FA), red mud (RM), phosphorus slag (PS), phosphogypsum (PG), and electrolytic manganese residue (EMR), the radiation intensity and associated radiological impact were studied. The results show that concentrations of 238U, 235U, 232Th, 226Ra, 210Pb, and 40K for different samples vary widely. The concentration of 238U was both positively correlated with 235U and 226Ra, and the uranium contents in the measured samples were all of natural origin. The radiation levels of PG, EMR, EMR-Na (EMR activated by NaOH), and EMR-Ca (EMR activated by Ca(OH)2) were all lower than the Chinese and the world’s recommended highest levels for materials allowed to be directly used as building materials. The values of the internal and external illumination index (IRa and Iγ, respectively) for FA and RM were higher (IRa > 1.0 and Iγ > 1.3 for FA, IRa > 2.0 and Iγ > 2.0 for RM). The radium equivalent activity (Raeq), indoor and outdoor absorbed dose (Din and Dout, respectively), and corresponding annual effective dose rate (Ein and Eout) of RM, PS, and FA were higher than the recommended limit values (i.e., 370 Bq/kg, 84 nGy/h, 59 nGy/h, 0.4 mSv/y, and 0.07 mSv/y, respectively), resulting from the higher relative contribution of 226Ra and 232Th. The portion of RM, FA, and PS in building materials should be less than 75.44%, 29.72%, and 66.01%, respectively. This study provides quantitative analysis for the safe utilization of FA, RM, PS, PG, and EMR in Guizhou building materials.

Practice of Simulation to Formation of Rock Theory

2007 ◽  
Vol 336-338 ◽  
pp. 1918-1920 ◽  
Author(s):  
Xiang Peng Feng ◽  
Heng Hu Sun ◽  
Xiao Ming Liu
Keyword(s):  
Building Materials ◽  
Resource Consumption ◽  
Solid Wastes ◽  
Low Level ◽  
High Resource ◽  
Waste Production ◽  
High Pollution

The utilization of industrial solid wastes as building materials has been thought of as the best way to solve the problems caused by high waste production, high resource consumption and high pollution that is inherent with the primary industries of China. However, due to the low level of usage by previous technologies, these serious problems of the primary industries still persist. Hence, it is urgent to seek an effective way to solve these problems. In this paper, based on the understanding of the theory of simulation to formation of rock and the research advances of sialite technology, it is concluded that sialite technology can achieve the effective usage of industrial solid wastes.

scholarly journals Mixed magnesian binders using local silicate waste production

2021 ◽  
Vol 2131 (4) ◽  
pp. 042035
Author(s):  
E Lytkina
Keyword(s):  
Building Materials ◽  
Raw Materials ◽  
Mining Industry ◽  
Raw Material ◽  
Similar Process ◽  
Environmental Aspect ◽  
Waste Production ◽  
Material Component ◽  
Additional Processing ◽  
Technogenic Raw Materials

Abstract Today, the waste of the mining industry is more than 8 billion tons. Analysis of the literature data showed that most of the man-made waste that is generated as a result of the development of mineral deposits is suitable for use in many industries, in particular, in the production of building materials. The use of technogenic raw materials allows us to solve the following tasks: Environmental aspect - reducing the number of dumps and reducing their volumes. And this, in turn, improves the ecology of regions and territories. 2. Economic aspect - reducing the cost of construction products through the use of almost free raw materials, the release of more competitive products. Of course, it is necessary to provide that part of the costs will be spent on additional processing, revision, activation, modification of this technogenic raw material component. But today we have to think about how to clear the territory of substandard “waste rock” and use it to reduce the production and consumption of natural raw materials. A similar process can create waste-free production.

scholarly journals Influence of Environmental Regulation and Resource Utilization on Research and Development Towards Sustainability: A Perspective of China’s Coal Mining Industry

2021 ◽  
Author(s):  
Jianguo Du ◽  
Francis Tang Dabuo ◽  
Beverlley Madzikanda ◽  
Kofi Baah Boamah ◽  
Pierrette Tiefigue Coulibaly ◽  
...  
Keyword(s):  
Research And Development ◽  
Environmental Regulation ◽  
Resource Utilization ◽  
Open Economy ◽  
Mining Industry ◽  
Inverse Effect ◽  
Directional Variation ◽  
The Individual ◽  
The Impact ◽  
D Investment

The multi-directional variation of results among environmental regulation, resource utilization, and Research and Development (R&D) investments continue to gain more popularity but few studies have examined the nexus among these variables in an open economy. To analyze the individual and combined effects of environmental regulation and resource utilization on industrial R&D investments, a panel data of 30 provinces in China from 2008 to 2018 was used. We also examined the mechanism underlying the magnitude of pollution inducement on R&D investment. The results show that environmental regulation significantly and positively promotes R&D investment while resource utilization has an inverse effect. Environmental regulation does not interfere with efficiency and neither does the quest for efficiency in resource utilization weaken the impact of environmental regulation on R&D investment. Only a few provinces are within the rising stages of the inverted n-shaped curve indicating environmental regulation level is still low. Even though there are tighter laws, government needs to continue to put in more stringent environmental policies towards achieving sustainable development.

scholarly journals Geo-Environmental Problems of Open Pit Mining: Classification and Solutions

2018 ◽  
Vol 41 ◽  
pp. 01034
Author(s):  
Michaela Koščová ◽  
Mark Hellmer ◽  
Seroni Anyona ◽  
Tatiana Gvozdkova
Keyword(s):  
Building Materials ◽  
Underground Mining ◽  
Mining Industry ◽  
Environmental Problems ◽  
Production Equipment ◽  
Open Pit ◽  
Open Pit Mining ◽  
Production And Consumption ◽  
Open Development ◽  
Entire Complex

Open mining development is the cheapest method, because it uses powerful production equipment, which allows a large amount of minerals to be excavated during a shift. Working conditions in open development are less dangerous for the health of workers, and a smaller number of supervisory personnel than in underground mining is required. In the process of open development, stripping works are first carried out, i.e. the removal of the empty rocks covering the deposit. Constantly growing requirements for energy sources, metal ores and building materials cause the need for intensive development of the mining industry. There is a rejection of significant areas for the development of minerals in an open and closed way. The causes of degradation are both the mining of minerals, as well as construction, the placement of production and consumption wastes in the natural environment. Changes in the components of the environment are observed as a result of direct or indirect influence of mining enterprises activities. This requires an analysis of the entire complex of geo-environmental problems of open mining and the identification of the most urgent ways to solve them.

scholarly journals Soil concrete based on waste of heat power engineering and siftings of rock grinding

2019 ◽  
Vol 140 ◽  
pp. 05015
Author(s):  
Natalia Konovalova ◽  
Elena Rush ◽  
Dmitry Bespolitov ◽  
Pavel Pankov
Keyword(s):  
Fly Ash ◽  
Portland Cement ◽  
Phase Analysis ◽  
Building Materials ◽  
Specific Activity ◽  
Natural Radionuclides ◽  
Mining Industry ◽  
Emission Spectrometry ◽  
Heat Power ◽  
X Ray

The possibility of recycling large-tonnage waste of heat power engineer-ing and mining industry in road construction is shown. Compositions of road-building materials were researched, containing siftings of rock grinding, fly ash, Portland cement, modified with a stabilizing additive of polymeric nature. X-ray phase analysis showed availability of quartz in fly ash, calcite, feldspars, goethite and X-ray amorphous phase, what is consistent with the data of infrared spectroscopy. By atomic emission spectrometry with inductively coupled plasma it was revealed that fly ash is latent-active and can be disposed in compositions in the presence of a stabilizing additive. The X-ray phase analysis of grinding siftings showed that it contains quartz, feldspars, chlorite, calcite and dolomite. The specific activity of natural radionuclides (226Ra, 232Th, 40К) of fly ash and grinding siftings was 248 and 110 Bq/kg, which allows using such waste in construction without restrictions. It was revealed that the initial mineral raw materials belong to multiphase polymineral systems; therefore, when modifying them with stabilizing additives, binding of finely divided particles should be taken into account. It was revealed that the optimal content of Portland cement and fly ash in samples is 8 and 10 wt.%. It was found that an increase in the mass fraction of fly ash in the composition of soil-concrete up to 30 wt.% leads to softening of the samples and a decrease in their strength characteristics.

scholarly journals Design of a system for management and monitoring of vehicles transporting solid waste in open-cast coal mines

2012 ◽  
Vol 3 (2) ◽  
pp. 92-97
Author(s):  
Thanh Binh Ngo ◽  
Thanh Hai Nguyen
Keyword(s):  
Solid Waste ◽  
Solid Waste Management ◽  
Coal Mines ◽  
Mining Industry ◽  
Solid Wastes ◽  
Filling Materials ◽  
Monitoring Process ◽  
The Right ◽  
The Impact ◽  
Open Coal

Today, solid waste management in coal mines is an urgent requirement for the coal mining industry. The overlying materials removed from a seam of coal are solid wastes transported to dumping sites and should be strictly, efficiently managed and monitored by an automatic system. These wastes must be separated for use as leveling and filling materials or residue materials need to be processed in order to minimize the impact on the environment. The system was designed to manage and monitor vehicles transporting solid waste in open coal mines to force them in tasks of taking solid wastes and giving out these wastes in the right places, to help collect and process suitably. The results showed that the calculation of numbers of trips using the software program named "Management of trucks" achieved the statistics of running trucks between the points of removing wastes and dumping sites, in which the numbers of valid and invalid trips were given out. The monitoring process obtained the statistics of active and inactive total time of vehicles transporting solid waste. From that we can calculate and classify them at each dumping site. In addition, the statistics of productivity of power-shovels, fuel consumption levels of excavators and trucks were also gained. Hiện nay quản lý chất thải rắn tại các mỏ than là một yêu cầu cấp bách đối với ngành khai thác than. Các chất thải khi bóc vỉa được chở đến các bãi đổ cần có một hệ thống quản lý giám sát chặt chẽ. Những chất thải này phải được phân loại để làm vật liệu san lấp hoặc vật liệu cần xử lý nhằm giảm thiểu các tác động tới môi trường. Hệ thống được thiết kế có nhiệm vụ quản lý và giám sát các xe chở chất thải trong quá trình khai thác tại các mỏ lộ thiên, đảm bảo các phương tiện này được xúc và đổ đúng nơi quy định, giúp thu gom, xử lý một cách phù hợp. Kết quả cho thấy rằng việc tính toán số lượng các chuyến xe bằng cách sử dụng chương trình phần mềm có tên là "Quản lý xe tải" thu được các số liệu thống kê xe chạy giữa các điểm xúc chất thải và các điểm đổ, trong đó thống kê được số lượng các chuyến đi hợp lệ và không hợp lệ. Quá trình giám sát thu được các số liệu thống kê của tổng thời gian hoạt động và không hoạt động của các phương tiện vận chuyển chất thải rắn. Từ đó chúng tôi có thể tính toán và phân loại chúng ở mỗi điểm đổ chất thải. Ngoài ra, cũng thu được các số liệu thống kê năng suất hoạt động của máy xúc, mức tiêu thụ nhiên liệu của máy xúc và xe tải.

scholarly journals RISK MANAGEMENT IMPLEMENTATION PRACTICES IN RUSSIAN INDUSTRIAL COMPANIES: RESULTS OF AN EMPIRICAL STUDY

2020 ◽  
Vol 10 (4) ◽  
pp. 410-423
Author(s):  
M. O. Kuznetsova
Keyword(s):  
Risk Management ◽  
Management System ◽  
Building Materials ◽  
Mining Industry ◽  
Management Systems ◽  
Industrial Companies ◽  
Research Areas ◽  
Industrial Organizations ◽  
Risk Management System ◽  
Pharmaceutical Industries

The article analyzes the practice of implementing risk management in Russian industrial companies. The study conducted a survey of 96 industrial companies in various industries in order to identify the features of implementing a risk management system in Russian industrial organizations. The main goals of implementing risk management systems in industrial companies, the features of organizational risk management structures, the amount of costs for maintaining risk management systems, risk assessment methods, the activities of industrial organizations that integrate risk management processes, and the level of automation of risk management systems were identified.The method of assessing the level of maturity of risk management is proposed: absent, managed, quantitatively managed, optimized and advanced levels.Using cluster analysis, groups of Russian industrial companies in various industries were identified by the level of process maturity of the risk management system. The most developed in the field of risk management systems are companies in the mining industry, mechanical engineering, as well as those engaged in the production of consumer goods. Companies with the least developed level of risk management include companies in the furniture, pulp and paper, cosmetics, and pharmaceutical industries, as well as those that produce building materials.On the basis of the survey identified the main barriers introducing a comprehensive system of risk management of industrial companies.The described research areas will help to increase the effectiveness of the risk management system, which will help to increase the strategic stability of the company.

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