It has been observed that the damage to the environment caused has grown multi-fold in recent years especially with the exponential rise in population. The sad part of it lies with the fact that no part of earth be it the mountains or oceans or plains have been spared. In order to predict the global climate change, a number of models have been developed over the years. All reliable models clearly indicate the overall deterioration in the quality of air levels. The geographical distribution of precipitation changes at different places leading to changes in water availability. Living a healthy life in a clean environment has soon become a distant dream for the common man. To add to the same, the arrival of Corona virus in the year 2019 has put human life in the doldrums as its contagious and fast spreading nature has put day to day life on hold besides causing deaths and forcing people to throng to hospitals at a rapid rate not witnessed during the recent past. On the other hand, the outbreak of the COVID-19 Pandemic had a positive impact on the environment as most of the highly polluted cities witnessed a clear blue sky. Air Quality Index (AQI) and Particulate Matter (PM2.5) levels in all the major cities improved during the lockdown period. However, with life slowly limping back to normal, there is a dire need to ensure that humans do not go back to their old ways of polluting the environment. The way of work needs to change in each and every type of industry. This paper focuses on mechanisms for providing a green enterprise transformation for some of the commonly functioning industries post COVID-19 times. The research study focused on a specific country in Asian continent, and it can be extended to other countries/continents.

Aluminium alloys have a wide variety of applications in the industrial sector due to some unique characteristics like lightweight, high strength to weight ratio, corrosion resistance, good electrical conductivity, recyclability, ductility, and formability, etc. Due to this unique combination of properties, the applications of aluminium alloys continue to increase. The tribological behavior and impact strength were studied in this research work by conducting the wear and impact tests, varying the composition of two major alloying elements, Magnesium (Mg) and Zinc (Zn) of Al7068 aluminium alloy. The specimens were prepared as per ASTM standards for wear and impact tests, four compositions each for Mg% varying b/w (2.2 to 3%), and Zn % varying b/w (7.3 to 8.3%). The results of the wear test on the alloy Al7068 shows that the specimens with 3% Mg and 7.6% Zn compositions gives least wear rate at loads 2 kg and 3 kg respectively whereas the specimens with compositions of 2.75% Mg and 7.3% Zn give highest wear rate at a low load of 1 kg. The impact test results indicate that specimens with compositions of 2.2% Mg and 7.6% Zn of the alloy Al7068 give the highest impact strength which in turn improves its performance.

Some of the important critical parameters for assessing the water quality like pH (Hydrogen ion concentration), DO (Dissolved Oxygen), BOD (Biological Oxygen Demand), etc., were monitored at different locations in some major Indian rivers. The results obtained from the study reveals that the critical parameters had increasing values in some monitoring locations, decreasing values, and no variation in values at some other places. It is recommended to have a pH value above 7, higher values of DO, lower values of BOD & FCC (Faecal Coliform Content) for improved water quality. Overall, the water quality improved in most Indian rivers. There was no discharge of industrial wastes, hotels/restaurants wastes, immersing of idols during religious festivals, etc., to the rivers during the COVID-19 lockdown. Therefore, enforcement of strict regulations by the Government of India for disposal of wastes produced from industrial & domestic activities can significantly reduce the water pollution levels in the Indian rivers.

Aluminium is one of the widely used metals in industrial sector owing to its specific features and its commercial production started in late 19th century. In its natural form it is combined with oxygen and other elements and is the third most abundant metal in the earth’s crust. It can be machined easily and has a Face Centred Cubic (FCC) structure. Aluminium alloys are an attractive alternative to ferrous materials for tribological applications due to their low density and high thermal conductivity. The microstructure of aluminium alloys can be modified and mechanical properties can be improved by alloying, cold working and heat treatment. The present work mainly focuses on the study of the effect of variation in composition on the wear characteristics and compressive strength of aluminium alloy Al6463 by varying the compositions of the two major alloying elements, Magnesium (Mg) and Silicon (Si) in the alloy. Four specimens of the aluminium alloy Al6463 are prepared each for Magnesium composition varying b/w (0.5 to 0.875%) and Silicon composition varying b/w (0.2 to 0.575%). Wear and compression tests were carried out as per ASTM standard. The results of the wear test indicate that the least wear rate was obtained for specimens of 0.750% Mg and 0.575% Si composition of the alloy Al6463 at a higher load of 1.5 kg. Also, the compression test results indicate that the specimens with 0.750% Mg and 0.575% Si compositions of the alloy Al6463 exhibit better compressive strength.