Metalbulletin_Events_003_PRES_Somdeb_Banerjee.pdfVIP

1 1 Environment and making of Ferro Alloys : How to make the process more eco-friendly – with special references to methods adopted at Tata Steel KZN 26th March, 2010 Presented by Mr. Somdeb Banerjee MD CEO Tata Steel KZN Tata Steel KZN – Towards zero effluents 2 TSKZN today ? Design and operating concept, the cleanest and greenest plant in the region by far and probably among the greenest in the world ? Extract maximum benefit from all product streams ? Byproducts – Solid : Metallurgical Slag and Gas Scrubber Fines – Liquid : Gas Scrubbing and Slag Wash water – Gas : CO rich Producer Gas [low levels of SO2 and NOx] 3 Byproducts: Solids Type Treatment Plans Gas Scrubber Fines Paver production by adding aggregates, cement and sand. Paving for roadways inside plant area. Subsequently made available to outside markets as lower cost alternative to current offerings. Metallurgical Slag Metallurgical Slag is crushed, screened and washed to standard size specifications of aggregate producers, for sale as road building material and stone replacement in concrete. From inception slag has been treated as a valuable byproduct, and is subject to quality control processes. Additional metal liberated and recovered by the washing process, augments metal sales. The finer fractions, when dried, makes an excellent abrasive for grit blasting. We have the lowest cost / tonne of recovered metal as a result of this. 4 CO rich Producer Gas and Water Type Future Plans CO rich Producer Gas Cogeneration – Producer gas to be used in an internal combustion engine for electrical power generation ? The EIA approval for the same is in place [Feb 09] ? Viable business model has been worked out Water TSKZN only sources water purified to drinking water standards in the plant. By storing water in impermeably lined dams, and achieving a high recirculation rate, we are currently consuming a fraction of the planned volumes to operate the plant. [approaching 300 litres o