Solid Waste Management in a Steel Plant Sep29

Solid Waste Management in a Steel Plant...

Solid Waste Management in a Steel Plant  Steel industry in general, produces large amounts of solid wastes while processing materials through its various processes. These solid wastes have many valuable products, which can be reused if recovered economically. Steel industry throughout the world has already taken up a number of innovative measures and continues to take further for 100 % utilization of these wastes with the ultimate objective of improving the operational efficiency and economics of steel industry. These measures not only reduce the cost of waste disposal and environmental pollution but also provide substantial amount of iron ore and flux materials as well as fuel rate benefits to the existing process, thereby conserving matching amounts of raw materials. Steel industry is both capital and energy intensive and its production volumes are very high. Process chains within the industry are long. Many different technologies are applied and the industry has a significant impact on the environment. One of the major concerns of world steel industry is the disposal of wastes generated at various stages of processing. Because of natural drive to be cost-effective, there is a growing trend of adopting such waste recovery technologies which convert wastes into wealth, thereby treating wastes as by-products. This has led to aiming at development of zero-waste technologies. The technologies developed to economically convert wastes of steel plants into wealth also provide new business opportunities for prospective entrepreneurs. As per World Steel Association (WSA), the world steel industry applies the principles of reduction, reuse and recycling (3 ‘R’s) in many ways, in order to improve the sustainability of the industry. Due to this the industry has dramatically reduced need for raw materials. In the 1970s and 1980s, modern steel plants needed an average of 1.44 tons of raw...