Bioremediation of MP-polluted Waters Using Bacteria Bacillus licheniformis, Lysinibacillus massiliensis, and Mixed Culture of Bacillus sp. and Delftia acidovorans
| Autor: | Dajana Kučić Grgić, Kristina Bule, Martina Miloloža, Marinko Markić, Viktorija Prevarić, Tomislav Bolanča, Vesna Ocelić Bulatović, Ema Lovrinčić, Šime Ukić, Antonija Kovačević, Matija Cvetnić |
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| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
microplastics
bacillus sp Delftia acidovorans ps Bacillus sp Lysinibacillus massiliensis Biochemistry lysinibacillus massiliensis Microbiology bacillus licheniformis Bioremediation Chemical engineering Mixed culture bioremediation Bacillus licheniformis LDPE PS biology Chemistry Process Chemistry and Technology General Chemistry biology.organism_classification ldpe TP155-156 Bacteria delftia acidovorans |
| Zdroj: | Chemical and Biochemical Engineering Quarterly, Vol 35, Iss 2, Pp 205-224 (2021) Chemical and Biochemical Engineering Quarterly Volume 35 Issue 2 |
| ISSN: | 1846-5153 0352-9568 |
| Popis: | Microplastic particles (MPs) are widely distributed pollutants in the environment. While a growing number of studies have shown that MPs are toxic to plant and animal life, systemic efforts to reduce their presence have been scarce. Low-density polyethylene (LDPE) and polystyrene (PS) are one of the most common among all plastic-forming MPs. In this study, pure bacterial strains, Bacillus licheniformis and Lysinibacillus massiliensis, and a mixed bacterial culture of Delftia acidovorans and Bacillus sp., were used for biodegradation of LDPE and PS microplastics. Biodegradation of MP-PS and MP-LDPE of particle size 300 – 500 μm was carried out under batch operating conditions at a temperature of 25 ± 2 °C, pH values of 7.15, and 160 rpm during 22 days. The obtained results showed that mixed bacterial cultures degraded MP-LDPE and MP-PS better than pure bacterial cultures, and the biodegradation efficiency was higher for MP-LDPE than for MP-PS, as indicated by greater reduction in peak intensity and spectral deformation, higher colony forming unit (CFU), and inorganic carbon (IC) values. |
| Databáze: | OpenAIRE |
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