Microbial Degradation of Polyvinyl Chloride (PVC) Films of Different Thickness: Optimization and Characterization of Priestia Aryabhattai Strain

Abstract

Both fossil fuel utilization and plastic product consumption are anticipated to rise in the coming decades. As a result, the world will be inundated with plastic waste that will create an environmental crisis unlike one we have ever seen. And there aren’t effective methods of remediation on a global scale, which is alarming. While it is true that plastic waste biodegradation using microorganisms is uncommon, it definitely does have multiple benefits. This particular research aims at filling the gap of utilizing PVC film degradation using Priestia aryabhattai, which is a bacterium that is found in soil samples that are contaminated with municipal waste. While there is minimal data on the biodegradation of PVC film via bacteria, this research dives deep into previously unexplored territory. Firstly, using scanning electron microscopy SEM, Priestia aryabhattai’s microbial degradation of PVC surfaces was studied. Secondly, Priestia aryabhattai’s capability to produce carbon sources using virgin grade PVC film was analyzed using Fourier transform infrared FTIR spectroscopy. The results were astonishing. Priestia aryabhattai proved deep oxidation capabilities on the PVC surface: the conversion of carbonyl groups. These tests further confirm the immense capabilities Priestia aryabhattai has to utilize virgin PVC as a primary carbon source. This highlights Priestia aryabhattai’s potential as a sustainable, cost effective means to biodegrade non-biodegradable plastics. The results also pave the way for further utilizing the bacteria as a primary tool to reduce contamination in waste overflowing regions of the Gwalior region.