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|a eng
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| 044 |
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|b ليبيا
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| 100 |
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|9 718596
|a Alshahri, Mohamed M.
|e Author
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| 245 |
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|a Air Pollution From the Cement Industry in Alkhums City:
|b A Case Study in LEBDA Cement Plant
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| 260 |
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|b جامعة المرقب - كلية التربية بالخمس
|c 2023
|g يناير
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| 300 |
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|a 131 - 137
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| 336 |
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|a بحوث ومقالات
|b Article
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|b The cement industry is a strategic industry because it is directly related to construction and reconstruction. Cement is used as a hydraulic bonding material from mortar or concrete components. Cement factories are usually established near the quarries of the clay and limestone in order to reduce the cost of transporting raw materials. Contaminants produced by cement plants differ in terms of components and quantity, depending on the different operating processes from one plant to another, hygiene procedures and other factors. This study scrutinizes the environmental impact due to cement production process in Libya. A case study of Lebda Cement Plant revealed that the production adopted the dry process, which includes supply of raw materials, clinker burning and grinding process.. This study investigates the quantities of emissions from the cement industry, including the quantities of gases out of the chimneys and also the amounts of dust. This study also discusses the noise generated by the cement industry from its stages and its impact on workers. One of the most important sources of particulate emissions grinding and transport of raw materials, run the rotary kiln and cool the clinker and grinding, transport and packaging of products. The rotary kiln is one of the most important sources of particulate matter (dust), which causes the furnace to spin and flow speed combustion gases cause a large amount of dust. Dust in the rotary kiln causes a few problems such as the accumulations and loops in the cyclones, the feeder of the rotary kiln and the calcinations zone may cause the furnace to stop working for several days and alkaline evaporation consumes a large amount of energy. Noise is produced by crushing and milling of raw materials, and filling processes. This study found that the amounts of dust exceeded national and international standards allowed, as well as a clear increase in the proportions and quantity of gases emitted from the chimneys, it was also found that the noise intensity in the cement manufacturing stages according to the working period affects the workers so they should not exceed the allowed time according to the noise intensity. These emissions are not only deteriorating air quality but also degrading human health. Emissions have local and global environment impact resulting in global warming, ozone depletion, acid rain, biodiversity loss, reduced crop productivity etc.
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| 653 |
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|a تلوث الهواء
|a صناعة الاسمنت
|a المشكلات الصحية
|a ليبيا
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| 692 |
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|b Cement Manufacturing
|b Lebda Plant
|b Air Pollution
|b Dust
|b Noise
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| 700 |
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|9 693001
|a Dabah, Ahmad M.
|e Co-Author
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| 700 |
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|9 473754
|a Sharif, Osama A.
|e Co-Author
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| 700 |
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|9 718598
|a .Handi, Saleh O
|e Co-Author
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| 773 |
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|4 التربية والتعليم
|6 Education & Educational Research
|c 010
|l 022
|m ع22
|o 1568
|s مجلة التربوي
|t Educational Journal
|v 000
|x 2011-421X
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| 856 |
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|u 1568-000-022-010.pdf
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| 930 |
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|d y
|p y
|q n
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| 995 |
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|a EduSearch
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| 999 |
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|c 1355247
|d 1355247
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