Upcycling waste streams from a biorefinery process – a case study on cadmium and lead biosorption by two types of biopolymer post-extraction biomass
Authors:
- Jarosław Chwastowski,
- Maciej Guzik,
- Szczepan Bednarz,
- Paweł Staroń
Abstract
This study investigated the possibility of using the spent kind of biomass of Pseudomonas putida CA-3 and Zobelella denitrificans MW1 obtained after the pilot-scale production of polyhydroxyalkanoates (PHAs) as a biosorbent for the bioremediation of aqueous solutions containing toxic cadmium and lead ions. The material was characterized by means of scanning electron microscopy, Fourier-transformed infrared spectroscopy, nuclear magnetic resonance spectroscopy and amino acid profiling. To check the sorption capacity of spent biomass against Pb and Cd ions, equilibrium studies were performed. To learn about the nature of the sorption process, kinetic modelling was carried out and the obtained results showed that the adsorption process is best described by the pseudo-second-order kinetic model (PSO), which suggests that the sorption process is connected with the chemical bonding of the ions on the sorbent surface. Information provided by the amino acid profile made it possible to predict the adsorption mechanism and FTIR analysis proved the participation of different chemical groups in the removal process. According to the equilibrium studies, the best-fitted isotherm was the Freundlich model for all used materials and metal ions considering the correlation coefficient. Summarizing the results, the spent biomass after the PHA production is an effective biosorbent and can be reused for heavy metal bioremediation.
- Record ID
- CUTb6d7bbf3054042a980364ed3277f9c78
- Publication categories
- ;
- Author
- Journal series
- Molecules, ISSN , e-ISSN 1420-3049, Biweekly
- Issue year
- 2023
- Vol
- 28
- No
- 17
- Pages
- [1-15]
- Article number
- 6345
- Other elements of collation
- fot.; tab.; wykr.; Bibliografia (na s.) - 14-15; Bibliografia (liczba pozycji) - 24; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 28, Iss. 17
- Substantive notes
- Supplementary Materials at: https: //www.mdpi.com/article/10.3390/molecules28176345/s1
- Keywords in English
- spent biomass, bacteria, biosorption, waste reuse, circular economy
- ASJC Classification
- DOI
- DOI:10.3390/molecules28176345 Opening in a new tab
- URL
- https://www.mdpi.com/1420-3049/28/17/6345 Opening in a new tab
- Related project
- Technologia biorafinacji olejów roślinnych do wytwarzania zaawansowanych materiałów kompozytowych. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Language
- eng (en) English
- License
- Score (nominal)
- 140
- Score source
- journalList
- Score
- Publication indicators
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUTb6d7bbf3054042a980364ed3277f9c78/
- URN
urn:pkr-prod:CUTb6d7bbf3054042a980364ed3277f9c78
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.