Iron Steel And Metal Finishing Operations Summary Term paper

While the free essays can give you inspiration for writing, they cannot be used 'as is' because they will not meet your assignment's requirements. If you are in a time crunch, then you need a custom written term paper on your subject (iron steel and metal finishing operations summary)
Here you can hire an independent writer/researcher to custom write you an authentic essay to your specifications that will pass any plagiarism test (e.g. Turnitin). Waste no more time!

Iron, Steel and Metal Finishing Operations SummaryBy:Kevin WorleySouthwestern Oklahoma State University Production, forming, and cleaning of steel products creates several waste-outputs. These outputs range from the benign to RCRA regulated hazardous waste. Listed below are the steps associated with a metal product from ore to finished product, detailing the various wastes. Production of CokeConverting iron ore into steel involves using coke, limestone, and ore to create the reduced metal. Cokemaking is one of the industry s greatest environmental concerns. Quench water, coal, and heat are used to produce coke. This creates various byproducts, mainly from the coal. Several of these outputs are RCRA regulated as hazardous wastes from specific industries and are designated with a K'. Materials that have a hazardous characteristic (ignitability, corrosivity, reactivity, or toxicity) are designated with a D'. The following list describes the results of producing coke. Process residues from coke by-product recovery (RCRA K143, K148) Coke oven gas by-products such as coal tar, light oil, ammonia liquor, and the remainder of the gas stream is used as fuel. Coal tar is typically refined to produce commercial and industrial products including pitch, creosote oil, refined tar, naphthalene, and bitumen. Charging emissions (fine particles of coke generated during oven pushing, conveyor transport, loading and unloading of coke that are captured by pollution control equipment). Ammonia, phenol, cyanide and hydrogen sulfide Oil (K143, K144) Lime sludge, generated from the ammonia still (K060) Decanter tank tar sludge (K087) Benzene releases in coke by-product recovery operations Naphthalene residues, generated in the final cooling tower Tar residues (K035, K141, K142, and K147) Sulfur compounds, emitted from the stacks of the coke ovens Wastewater from cleaning and cooling (contains zinc, ammonia still lime (K060), or decanter tank tar (K087), tar distillation residues (K035)) Coke oven gas condensate from piping and distribution system; may be a RCRA characteristic waste for benzene. These products are produced because water is used to quench the coke; this contaminates the water with the various residues listed above. Iron Making In the iron making process iron ore, coke, and Limestone are fed into the blast furnace heated air is forced through the iron ore by bustle pipes located around the circumference of the blast furnace. Carbon dioxide from the coke reduces the ore into iron. The acid part of the ore reacts with limestone and creates slag, which is drawn off periodically. The slag contains a fair amount of sulfur and other unwanted impurities. Sulfur dioxide and hydrogen sulfide are driven off from the slag.Slag is the largest byproduct of iron production. Reheating and attempting to capture any left over metals reclaims slag. The remainder is considered hazardous waste. Blast furnace flue gas is cleaned and is used to supply heat to other processes in a plant or used to make steam to preheat air coming into the furnace. Sludge is also produced in the process. Wet scrubbers are used to remove fine particles. Wet scrubbers and sludge are another land...

You should cite this paper as follows:

MLA Style
. EssayMania.com. Retrieved on 16 May, 2012 from
    <http://essaymania.com/101131/iron-steel-and-metal-finishing-operations-summary>

More College Papers

Jane Eyre essay
Jane Eyre is a novel about struggle of a little governess for self-realization and dream-fulfillment. In that determined and almost obsessive struggle Jane appears as a self-involved person in an absolute denial of the world around her. This particular layer of Jane's complex personality is importa

Teacher Testing, Is It Valid? essay
Should teachers be faced with the hassle of being tested on their general knowledge or what they obtained from their college degree? This question introduces the current controversy that has aroused concerns, questions and doubts from Massachusetts s inhabitants and taxpayers lately. Concerns due to

Siddhartha essay
Siddhartha Follow-Up Project Part One:Religion is an important part of many peoples' lives. In Siddhartha, we see a new view on religion and its place in the human search for conquering the secret of universal unity. Hinduism and Buddhism tell us that to attain this secret, one must remove all sense