Izvorni znanstveni članak
https://doi.org/10.15255/CABEQ.2021.1915
Bioremediation of MP-polluted Waters Using Bacteria Bacillus licheniformis, Lysinibacillus massiliensis, and Mixed Culture of Bacillus sp. and Delftia acidovorans
D. Kučić Grgić
; M.
M. Miloloža
; Department of Industrial Ecology, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
E. Lovrinčić
; Department of Industrial Ecology, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
A. Kovačević
; Department of Industrial Ecology, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
M. Cvetnić
; Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
V. Ocelić Bulatović
; Laboratory for Industrial Ecology, Faculty of Metallurgy, University of Zagreb, 44 000 Sisak, Croatia
V. Prevarić
; Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
K. Bule
; Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
Š. Ukić
; Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
M. Markić
; Department of Measurements and Process Control, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia
T. Bolanča
; b)Department of Analytical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, 10 000 Zagreb, Croatia; e)University North, 48 000, Koprivnica, Croatia
Sažetak
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.
This work is licensed under a Creative Commons Attribution 4.0 International License.
Ključne riječi
bioremediation; microplastics; LDPE; PS; Bacillus licheniformis; Lysinibacillus massiliensis; Delftia acidovorans; Bacillus sp.
Hrčak ID:
261170
URI
Datum izdavanja:
31.7.2021.
Posjeta: 1.294 *