Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Biodegradation of Disposable Mask in Municipal Solidwaste Management Soil Through Bioaugmentation
Soil is the ultimate destination of any waste generated by the mankind. Disposable facial masks are quite common constituent of municipal wastes under new-normal and post-COVID-19 situation at the solid waste management sites. Most of the commonly used disposable masks are made out of polypropylene which is one of the long-lasting non-degradable polymers. Physical disintegration may happen due to burial in soil and photo-oxidation upon exposure to sunlight that results in the formation of microplastics. Studies in the past have proved the ability of micro-organisms, especially bacterial species to degrade polypropylene under controlled laboratory condition. The micro-organisms utilise these polymeric products as sole source of carbon in the absence of other carbon source in their environment. Bacillus circulans is one among such species to degrade polypropylene. But most of the previous research works were limited to controlled laboratory conditions. In the present work, the disposed polypropylene masks are physically fragmented and mixed with the soil collected from Greater Warangal Municipal Corporation Solid Waste Management (GWMC SWM) site, Rampur Village, HanumaKonda, Telangana, India. In this study, efforts are made to study the role of soil, purpose of minimal salt media supplemented, effect of bioaugmentation using B. circulans in the degradation of these masks. FTIR analyses were performed for different treatment combinations at regular intervals. The transmittance at the prominent wave numbers (peak value) was found to increase during degradation process which indicated the reduction of bonds and hydrocarbons. Also, carbon dioxide evolution test as suggested by ASTM D5988 for aerobic degradation of plastic wastes was also conducted to estimate the amount of degradation effected by the bioaugmentation technique.
Biodegradation of Disposable Mask in Municipal Solidwaste Management Soil Through Bioaugmentation
Soil is the ultimate destination of any waste generated by the mankind. Disposable facial masks are quite common constituent of municipal wastes under new-normal and post-COVID-19 situation at the solid waste management sites. Most of the commonly used disposable masks are made out of polypropylene which is one of the long-lasting non-degradable polymers. Physical disintegration may happen due to burial in soil and photo-oxidation upon exposure to sunlight that results in the formation of microplastics. Studies in the past have proved the ability of micro-organisms, especially bacterial species to degrade polypropylene under controlled laboratory condition. The micro-organisms utilise these polymeric products as sole source of carbon in the absence of other carbon source in their environment. Bacillus circulans is one among such species to degrade polypropylene. But most of the previous research works were limited to controlled laboratory conditions. In the present work, the disposed polypropylene masks are physically fragmented and mixed with the soil collected from Greater Warangal Municipal Corporation Solid Waste Management (GWMC SWM) site, Rampur Village, HanumaKonda, Telangana, India. In this study, efforts are made to study the role of soil, purpose of minimal salt media supplemented, effect of bioaugmentation using B. circulans in the degradation of these masks. FTIR analyses were performed for different treatment combinations at regular intervals. The transmittance at the prominent wave numbers (peak value) was found to increase during degradation process which indicated the reduction of bonds and hydrocarbons. Also, carbon dioxide evolution test as suggested by ASTM D5988 for aerobic degradation of plastic wastes was also conducted to estimate the amount of degradation effected by the bioaugmentation technique.
Biodegradation of Disposable Mask in Municipal Solidwaste Management Soil Through Bioaugmentation
Lecture Notes in Civil Engineering
Jose, Babu T. (Herausgeber:in) / Sahoo, Dipak Kumar (Herausgeber:in) / Shukla, Sanjay Kumar (Herausgeber:in) / Krishna, A. Murali (Herausgeber:in) / Thomas, Jimmy (Herausgeber:in) / Veena, V. (Herausgeber:in) / Sangeetha, S. (Autor:in) / Krishna, P. Hari (Autor:in) / Kumar, T. Naveen (Autor:in)
Indian Geotechnical Conference ; 2022 ; Kochi, India
Proceedings of the Indian Geotechnical Conference 2022 Volume 8 ; Kapitel: 15 ; 153-163
14.07.2024
11 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Grease biodegradation: is bioaugmentation more effective than natural populations for start-up?
| British Library Conference Proceedings | 1996
Grease biodegradation: is bioaugmentation more effective than natural populations for start-up?
| British Library Conference Proceedings | 1996
| British Library Conference Proceedings | 1992