Case Experience on WIN WIN Approach Towards Industrial Pollution Control-Economic and Environmental Efficacy of Cleaner Technology in Select Cement Industry in Tamil Nadu

The cement industry pollutes air, water and soil to control pollution using different types of advanced pollution control technologies to reduce the pollution levels and achieve permissible limits. But still, Cement industry manages to recycle and reuse its (Co-processing) by-products based on the “concept of industrial ecology” on its own production premises in a holistic positive environmental management approach. Due to the production totally based on mining products from “fossil fuels” like calcium carbonate, Gypsum. Co-generation (energy conservation, variable frequency drives (VFD), Cement industry cost variables Economic and environmental variables, older (Conventional) and newer (Cleaner) technology and their negative and positive advantages were compared. Variables like capital cost, variable cost, viability period of the equipment, depreciation cost, buy back cost, benefit cost and environmental benefits like energy in kWh per year, water in liters per year and other recycling process like “Add-on” and “Process change” technologies are taken in consideration. The main objective is to focus on the cost aspects between the two technologies, conventional and cleaner technology in pollution control. This was carried out by comparing cost benefit analysis and Return on Investment (ROI) for the old and clean technologies. There are nine technologies used in this industry that has been analyzed.