A Comparative Study on Application of Acidithiobacillus ferrooxidans and Aspergillus niger for Biomachining of EN-19 Alloy Steel

Paris climate deal has strengthened the claims of adopting sustainable manufacturing and development practises. The manufacturing sector of any country often gets the important consideration in their country’s macroeconomic and social policies especially in the context of developing countries. Though it provides economic growth and development but environmental hazards and damages, caused due to manufacturing operations or associated operations cannot be overturned and moreover, in the past, they were ignored at large. The need of an hour is to explore and develop sustainable as well as green manufacturing operation that doesn’t have or very little negative impact on the environment and on the same time it doesn’t push the cost factor which might impact the profitability of the organization. Biomachining makes the use of metabolism activities of microorganisms for removing superfluous metal from the workpiece and could be considered as a potential player to replace traditional manufacturing operation especially turning operation which is not at all environmentally friendly operation. In this paper, efforts have been made to explore the usefulness of Aspergillus niger and Acidithiobacillus ferrooxidans for biomachining of En-19 alloy steel in the reflection of SMRR, recorded for 8 consecutive days to confirm the scope of its application. Both the trials have been carried out at room temperature.