Nigeria is rich is solid mineral resources, such as: Kaolin, gypsum, mica, clay, tantalite, iron ore, gemstone, silica sand.
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Recycling concrete &building rubble is not only able to bring profit to investors, but also good for environment protection.
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Base on the plentiful experience of producing and marketing of impact crusher, Sofol R&D institution…
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Adopting technology from the world, PY Series spring cone crusher has an excellent performance in secondary…
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The vibrating screen is a kind of sieving equipment of international advanced level, developed by our…
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Sofol VSI Series vertical shaft impact crusher is designed by reputed German expert of Sofol and every…
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Cement production includes the mining of raw materials, raw material preparation, clinker production, and cement grinding process. Each process requires a certain amount of electricity consumption (see Table 2).For the international advanced technology, the overall electricity consumption per unit of cement production is about 80 …
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Cement, which has its own environmental and social effects in addition to substantially influencing those of concrete, is a significant component. 1. Emissions of Carbon Dioxide and Climate Change. With up to 5% of all CO2 emissions produced by humans occurring in the cement business, 50% of which come from chemical reactions and 40% from fuel ...
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1. Introduction. Portland cement is one of the world's most important human-made products. In 2020, it was estimated that about 4.1 Gigatons (Gt) of this material were manufactured [1] which brings a serious concern related to the environmental impact caused by the Portland cement production chain. This sector is the third-largest …
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It adumbrates the processes involved in cement production and sources of emission plus a succinct view of emissions generated as well as health and environmental impacts arising from this subject ...
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Türkiye is the largest cement producer of Europe and the second biggest cement exporter in the world. The industry is responsible for more than 8% of global carbon dioxide (CO 2) emissions and around 15% of the primary energy consumed worldwide.In this paper, the specific energy consumption (SEC) and related emissions of a real scale …
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Apart from CO 2 emissions, cement production also generates other environmental impacts. The mining of raw materials can result in habitat destruction, soil erosion, and water pollution.
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Studies in Asia assessing the environmental impact of the cement industry and alternative approaches to reducing carbon emissions tend to support improvements in energy efficiency [20], the use of ...
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Sushil Kumar Tiwari, Director Technical, Heidelberg Cement India, gives us an in-depth understanding of the limestone mining process and takes us through the innovations in technology, efforts taken to minimise environmental impact and enhance productivity in an exclusive interview. Tell us about the mining and clinker production …
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Comparative environmental impact caused by natural aggregate (NA) vs overburden aggregate (OBA) as base and subbase material in flexible pavement construction. Overall, apart from the geotechnical characterization OB was also test as coarse and fine aggregate in cement mortar and concrete, the novel geomaterial is …
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environmental effects of a proposed activity and how those ... (MCL) is engaged in cement manufacturing and limestone mining, having wide experience in the field of cement ... The nearest railway line connecting Kota - Bhawanimandi of western railway is at a distance of 0.9 km ESE. The nearest railway station, Morak is at a distance of 2.4
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The environmental impact of concrete containing pure cement has been reduced by the following ranges when utilizing 10 to 20 percent fly ash as a replacement to cement in concrete: 2.16–18.65% ...
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impact on the properties of the final cement product. 3.5 Cement Grinding: The clinker, along with a small amount of gypsum, is finely ground in a cement mill to
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This study aims to examine the effect of implementing green accounting on the environmental performance of cement, energy, and mining companies in Indonesia. This study is a quantitative study. The data used are secondary data obtained from sustainability reports of cement, energy, and mining companies listed on the Indonesia …
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The cement industry is a major contributor to carbon emissions, responsible for 5–8% of global emissions. This industry is expanding, particularly in emerging economies, and it is expected that CO2 emissions will rise by 4% by 2050. To address this critical concern, this paper identifies ten factors that contribute to carbon emissions in the …
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Hence, there may be the following problems if they are used for cemented backfill: (1) HLUTs contain uranium, which may contaminate the underground mining environment if it migrates; (2) the particles are coarse (<10 mm) and saturated with sulfuric acid, which may adversely affect the hydration reaction of cementitious materials, …
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This study examines the consequences of cement production on the environment and possible solutions to global warming. A rise in cement production has …
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variety of pollutants that they do not even know the basics about. Many studies have examined the effects that cement plants located in or near residential areas have on the environment. Their studies cover impacts on plants as well as in certain cases, even the aquatic ecosystems, and effects on human health [37,38].
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2. Location and the Geology of the Area. Surrounding land use includes a natural ridge and valley to the south and west of the site, grazing and subsistence agriculture to the north, and the historical plant and stockpile area to the east (see Figure 1).The only major infrastructure in proximity to the site is the N2 highway which at its …
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The environmental impact of cement and concrete production is low per unit volume of material, but the amounts used make the impact of the concrete sector highly …
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India is world's second largest producer of cement. Its installed capacity as on December 2015 was 390 MTPA. Approximately 5% of total global man-made CO 2 emissions are caused due to cement ...
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The specific objectives are to assess the socio-economic impacts of the mine on the local people and examine its environmental effects on soil, water resources, vegetation cover and air quality in ...
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The Cement Manufacturing Process - Environmental and Social Impact. The cement industry is among India's most polluting industries. Image courtesy: businesstoday.in. The Indian cement industry is the second-largest producer of cement globally. In the financial year 2020, the Indian cement industry had a turnover of Rs …
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The cement industry confronts significant challenges in raw materials, energy demands, and CO2 emissions reduction, which are global and local environmental concerns. Life cycle assessment (LCA) has been used in many studies to assess the environmental impact of cement production and investigate ways to improve …
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In the Environmental Impact Assessment (EIA) report of Eaglefield mining expansion project prepared by Noise Mapping Australia in 2010, virtual noise maps were produced by utilizing available mining data and operating conditions. It was recommended that the dump truck route to the out-of-pit dump should be at or close to the natural surface and ...
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A well-formulated Environment Management Plan will help in mitigating the impacts of mining on the environment. The best practices adopted by industries around the world can be adapted as per site characteristics is to ensure sustainable mining along with the prevention of environmental degradation. ... as a major component in cement …
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More specifically, the current literature review serves for (i) describing the environmental impacts, (ii) clarifying the methodological approaches, and (iii) …
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food and water. The law also considers risks to the environment, such as the release of hazardous substances or polluted water. China represents the largest REEs producer worldwide. with 140,000 t ...
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Energy consumption is the biggest environmental concern with cement and concrete production. Cement production is one of the most energy intensive of all industrial manufacturing processes. Including direct fuel use for mining and transporting raw materials, cement production takes about six million Btus for every ton of cement (Table …
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The present investigation is confined to Hazaribagh and Ramgarh districts of Jharkhand state of India. The study is an attempt to examine the extent of environmental degradation that has taken place in the form of water contamination and degradation of forest due to rampant mining in the different areas of Hazaribagh and Ramgarh districts i.e. Sonda (w …
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The information on Hg concentration, material flow and Hg input/output during the clinker production process is shown in Table 1.Among the different raw materials and fuels, carbide slag had the highest Hg content (mean ± standard deviation, SD, = 2.61 ± 0.56 mg/kg; Table 1, Fig. 1).Limestone, on the contrary, was the main reactant material in …
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PE series jaw crusher is usually used as primary crusher in quarry production lines, mineral ore crushing plants and powder making plants.
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