Abstract

13.An investigation on cement industry's air pollution management methods
Sheelendra Kumar Upadhyay and Mahendra Kumar Tiwari
Cement preparation includes mining; crushing and grinding of raw materials, resulting in cooling of the clinker, mixing clinker with gypsum, milling, storage, and receiving finished cement. This process generates a variety of wastes including dust, which is captured and recycled into process. The gases emitted from the clinker cooler are used as secondary combustion air. The dry process using pre heaters and pre liners is economically and environmentally preferable to wet process, as energy consumption is about 200 (J/kg)-wet process. Some solid waste products from other industry, such as power stations, slag, roasted pyrite residues, and PFA from foundry sands can be used as additives in cement production. Due to technological advancements, cement making companies have been able to produce higher volumes than in the past. However, high production levels have also been identified as a major cause of pollution. This paper examines options in practice to reduce pollution by companies work for development of cement and link, and this will help to ensure legislative compliance. This study can play a role for cement manufacturing industry as by adopting appropriate technology like computer modeling and reducing pollution by cement companies. Keywords: Cement, Pollution, Technology