Utilization of Steel Industry LD slag for Environmental Applications

Abstract

Steel slag is an industrial byproduct of the steel-making process. It is created in enormous amounts during steel production using electric arc furnaces. LD-slag, also known as LD (Linz-Donawitz) converter slag, is a byproduct of steelmaking in a basic oxygen furnace. This kind of slag is typically created during the steelmaking process from iron ore. The LD-slag comprised several hazardous metallic oxides therefore, dumping such waste may cause several detrimental effects on the environment. The global output of LD-Slag is around 47 MT per year. As a result, there is a strong case to be made for making extensive use of LD-slag, either through conversion into useable material or recycling as process material. Taking all these above issues into consideration, the main objectives of this work are divided into four sections. The first section deals with wastewater treatment by different zeolites derived from LD-slag of the steel industry. The second section deals with the preparation of zeolites A and X and their physico-chemical study.