Bioremediation of MP-polluted Waters Using Bacteria Bacillus licheniformis, Lysinibacillus massiliensis, and Mixed Culture of Bacillus sp. and Delftia acidovorans

Microplastic particles (MPs) are widely distributed pollutants in the environment. While a growing number of studies have shown that MPs toxic to plant and animal life, systemic efforts reduce their presence been scarce. Low-density polyethylene (LDPE) polystyrene (PS) one most common among all plastic-forming MPs. In this study, pure bacterial strains, Bacillus licheniformis Lysinibacillus <br /> massiliensis, mixed culture Delftia acidovorans sp., were used for biodegradation LDPE PS microplastics. Biodegradation MP-PS MP-LDPE particle size 300 – 500 ?m was carried out under batch operating conditions at temperature 25 ± 2 °C, pH values 7.15, 160 rpm during 22 days. The obtained results showed cultures degraded better than cultures, efficiency higher MP-PS, as indicated by greater reduction peak intensity spectral deformation, colony forming unit (CFU), inorganic carbon (IC) values.