Material Balance

The デュエルビッツ ボーナスel Group undertakes environmentally conscious management through every aspect of its operations.

As part of this approach, the Group continuously strives for greater energy efficiency; effective use of byproduct gases, waste heat, water and other resources; and the recycling of byproducts.

At デュエルビッツ ボーナスel, 92 percent of energy use is in the Iron & Steel Business. In fiscal 2016, this business unit used 11.01 million tons of iron ore; 5.99 million tons of coking coal and coke; 9PJ^*1 of fuels such as coal, oil and city gas; and 600,000 MWh of purchased power. Nearly all of the byproduct gases – including coke oven gas, blast furnace gas and converter gas – derived from production processes are effectively reused as fuel for reheating steel or for use in in-house power plants. デュエルビッツ ボーナスel also proactively undertakes power generation that utilizes waste heat. Combined with the power generated from byproduct gases, over 60 percent of the power required by production processes is generated through energy recovery.

Insofar as possible, byproducts produced during production processes, such as steel slag^*2, dust and sludge, are also turned to effective use as raw materials in applications such as cement and roadbeds. Together with in-company reuse, 96 percent of the byproducts are recycled in this manner.

In the future, デュエルビッツ ボーナスel will continue to carry out environmentally friendly practices throughout all aspects of its operations, striving for more efficient use of resources and energy and advancing the development of new technologies to that end.

Using metal wire rods, hoops, fluxes, soluble glass and other raw materials, the Welding Business produces welding electrodes and welding wires. In fiscal 2016 the Fujisawa, Ibaraki, Saijo and Fukuchiyama plants used a combined 160,デュエルビッツ ボーナスons of raw materials, 61,000 MWh of electricity, and 0.2 PJ of city gas and other fuels to manufacture 150,デュエルビッツ ボーナスons worth of products. This generated 14,デュエルビッツ ボーナスons of byproducts, of which 98 percent was successfully recycled.

Using ingots and scrap as raw materials, the Aluminum & Copper Business produces a variety of aluminum and copper products. In fiscal 2016 the business unit used 490,デュエルビッツ ボーナスons of raw materials, 510,000 MWh of electricity, and 4.3 PJ of city gas and other fuels to create 440,デュエルビッツ ボーナスons of products. During melting and casting, 31,デュエルビッツ ボーナスons of byproducts, such as slag, dust and wastewater sludge, were produced. However, 97 percent of these byproducts were successfully recycled.