Silica Use Silica Usage and Term Paper

Download this Term Paper in word format (.doc)

Note: Sample below may appear distorted but all corresponding word document files contain proper formatting

Excerpt from Term Paper:

If it is ingested it will pass through the human system without any ill effects. However silica is often associated with silicosis, a lung disease especially found in miners. The inhalation of fine silica dust in large enough quantities can lead to this disease. This is often the case in people who work in close proximity to large quantities of silica dist, such as in sandblasting. This process is explained succinctly as follows;

Silicosis is lung damage caused by breathing dust containing fine particles of crystalline silica. If silica particles are inhaled they become embedded in the lungs, the lung tissues react by developing fibrotic nodules and scarring around the trapped particles. The scare tissue makes the lungs hard and stiff. The scaring can greatly reduce the function of the lungs making it difficult and sometimes painful to breathe.

Silica Dust Exposure)

As mentioned above, silica is prevalent and even ubiquitous in contemporary society and therefore poses a real threat to health in some respects, especially in industry. As one study on the subject states;

Every year more than one million American workers are exposed to silica dust at their jobs. Deaths from silicosis currently number about 300 cases per year. Hundreds more are being permanently disabled by this disease. Every one of these cases is an unnecessary tragedy, because silicosis is absolutely preventable

Silica Dust Exposure)

Among the different types of situations and occupations that are prone to health risks from exposure to silica are the following;

Construction: sandblasting, rock drilling, masonry work, jack hammering, tunneling;

Any occupation where workers are handling rock, brick, sand, or drilling, quarrying, or tunneling

Foundry work: grinding, moldings, shakeout, core room;

Glass manufacturing;

Manufacturing of soaps and detergents;

Paper and pulp mills: repair or replacement of linings of rotary kilns;

Food processing operations: preparing crops for market, sorting, grading, and washing.

Silica Dust Exposure)

3.2. Safety measures

It therefore follows that employers are particularly responsible for ensuring the safety of staff that are exposed to silica and silica products. The first and most obvious safety measure is the control of exposure to silica dust. Another measure that is often used is the minimization of silica dust through the application of water in the process or in cleaning. (Silica Dust Exposure) Other measures include the use of exhaust ventilation to remove the silica dust form the area as well as dust control methods such as vacuuming with a high-efficiency particle air (HEPA) filter. (Silica Dust Exposure)

There are also various administrative controls that can be implemented; such as the monitoring of the air in the workplace. Training is another aspect that is recommended and all employers should train their staff in the dangers of exposure to this substance; as well informing staff about the particular operations and processes that produce the silica dust. Personal hygiene is also a factor of the safety process and all workers should be informed about in order to avoid unnecessary exposure to this substance. Lastly, regular medical examination are necessary to ensure that workers and others have not been affected by exposure to silica should be undertaken.

3.3. Storage and transport

While inert in combination with other elements silica can be an extremely dangerous substance. For instance, ferrosilicon can be mixed with aluminum and calcium and " When it comes into contact with moist air or water, an explosive chemical reaction occurs in which hydrogen is released" (SILICON or SILICA). Consequently there are strict laws about the shipping of ferrosilicon and the substance must be kept very clean and dry. The caution is also extended to other substances that should be carefully controlled and stored. One of these is Silicon (IV) chloride. This material requires specific storage requirements, such as storage away from water/moisture are close to alkalis or metals. (Material Safety Data Sheet)

Reference List

Lavender M. (1999) the Importance of Silica to the Modern World

http://content.karger.com/ProdukteDB/produkte.asp?Aktion=ShowPDF&ProduktNr=224157&Ausgabe=226067&ArtikelNr=24618

Material Safety Data Sheet. Retrieved Sept. 26, 2007, at http://www.soest.hawaii.edu/krubin/MSDS/Silicontetrachloride.html

Silica. Retrieved Sept. 26, 2007, at http://www.encyclopedia.com/doc/1E1-silica.html

Silica Dust Exposure. Retrieved Sept. 26, 2007, at http://www.erd.dli.mt.gov/safetyhealth/brochures/silicadustexposure.pdf.

Silicon carbide. Retrieved Sept. 26, 2007, at http://www.encyclopedia.com/doc/1E1-siliconc.html

Silicon Dioxide or Silica. Retrieved Sept. 26, 2007, at http://www.the- piedpiper.co.uk/th13(a).htm

SILICON or SILICA. Retrieved Sept. 26, 2007, at http://www.mii.org/Minerals/photosil.html[continue]

Cite This Term Paper:

"Silica Use Silica Usage And" (2007, September 30) Retrieved December 3, 2016, from http://www.paperdue.com/essay/silica-use-usage-and-35474

"Silica Use Silica Usage And" 30 September 2007. Web.3 December. 2016. <http://www.paperdue.com/essay/silica-use-usage-and-35474>

"Silica Use Silica Usage And", 30 September 2007, Accessed.3 December. 2016, http://www.paperdue.com/essay/silica-use-usage-and-35474

Other Documents Pertaining To This Topic

  • Iso Electric Point and Iron Content in Iron

    Iso-Electric Point and Iron Content in Iron Hydroxide Impregnated Aluminosilicate-Based Geopolymers Rahil Abou Saleh Dr. Kiril Hristovski Iron hydroxide impregnated aluminosilicate-based geopolymers (Fe-ASG) is a novel water treatment media currently under development for simultaneous removal of arsenic and inorganic contaminants. The goal of this study was to determine whether varied iron contents impregnated aluminosilicate impacts the surface charge in different pH conditions. The study tests for media types of virgin and iron

  • Corrosion in Reinforced Concrete Structures

    " (U.S. Department of Transportation, 2000 P. 3). In the United States, the average bridge deck in a snow-belt state generally shows the spalling shortly after 7 to 10 years of construction, and requires rehabilitation after 20 years of construction. Typically, the repair of the damaged caused by corrosion is invariably expensive. A crack is one of the major damage caused by corrosion. Although structural cracks could be attributed to

  • Cristobalite the Occurrence and Effect

    Post-Manufacture Evaluation The manufacturing process for silica products very often leads to the creation of cristobalite, and given the very small crystal structures that cristobalite can form there is a great need for evaluation finished products for the existence of cristobalite (Kalpokaite-Dickuviene et al. 2009; Tamura et al. 1998). Such evaluation is fairly simplistic however, as the existence of cristobalite irregularities and structures on silica surfaces becomes fairly obvious under basic

  • Waste Management Ghiban A &

    The three types of glass ceramics were then analyzed for structural integrity and thus, viability for use in industry. Methods of analysis include optic and SEM, which help determine qualities like glassiness. Results showed that larger amounts of CaO in the vitrification process changed the termperature at which crystallization takes place. By increasing the CaO amount in the glass ceramics, a higher cooling temperature during the crystallization process is needed.

  • Causes of Chronic Bronchitis in Workers This

    Causes of Chronic Bronchitis in Workers This review shows the literature and research available in the issue of respiratory diseases and the various occupations. The review shows that there is a pressing need to evaluate and conduct research in the known areas like coal, cement, and pesticides, but alarmingly agriculture and other industries have also to be included. It is not only the factories that are hazardous. There are arguments to show

  • Le Creuset Forged Hard Anodized Cooking

    Glass is formed by the rapid cooling of molten substances below their glass transition point without time allowed for regular crystal lattices to form (Matbase 2011; Lenntech 2011). The specific glass that is likely used for these lids is a borosilicate glass, composed of a mixture of silica, boric oxide, and certain oxides; silica is the main component in almost all commercial types of glass, and the boron helps

  • Nuclear Power for Energy and

    This can merely be helpful on local level but not at all on the global level. Radioactive materials in low quantities are present in fossil fuels, chiefly in coal and using them in heavy amounts can have more hazardous effects on the environment causing radioactive contamination globally. This is a much more pressing concern when compared to the radioactive contamination within a nuclear power station as the noxious waste in


Read Full Term Paper
Copyright 2016 . All Rights Reserved