Industrial case study The production of iron and steel Introduction: IRON Iron is the most abundant metal and is believed to be the tenth most abundant element on earth. Iron is also the most abundant (by mass, 34.6%) element making up the earth. The concentration of iron is mainly found in the inner core to about 5% in the outer crust. Iron is a metal extracted from iron ore, and is hardly ever found in the free …showed first 75 words of 1157 total…

…showed last 75 words of 1157 total…water, oils, grease, and mill scale. All these wastes are collected in waste tanks or in settlement ponds. When the waste settles down the waste can be removed and reused in sintering plants or if the metal content is sufficient it may be sold as a raw material overseas. The remaining liquid is then sent to waste treatment plants as sludge to purify the liquid and to remove remaining sediment. Settlement ponds/sites: polluted water