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A Critical Remark on the Applications of Gas-Phase Biofilter (Packed-Bed Bioreactor) Models in Aqueous Systems. Bioengineering (Basel) 2022; 9:bioengineering9110657. [DOI: 10.3390/bioengineering9110657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2022] [Revised: 10/22/2022] [Accepted: 11/01/2022] [Indexed: 11/09/2022] Open
Abstract
The principles of gas-phase biofilter systems, modeling, and operations are quite different from liquid-phase biofilter systems. Because of “biofilter” terminology used in both gas and liquid-phase systems, researchers often mistakenly use gas-phase models in liquid-phase applications for the analysis of data and determining kinetic parameters. For example, recent studies show a well-known gas-phase biofilter model, known as Ottengraf–Van Den Oever zero-order diffusion-limited model, is applied for analysis of experimental data from an aqueous biofilter system which is used for the removal of toxic divalent copper [Cu(II)] and chromium (VI). The objective of this research is to present the limitations and principles of gas-phase biofilter models and to highlight the incorrect use of gas-phase biofilter models in liquid-phase systems that can lead to erroneous results. The outcome of this work will facilitate scientists and engineers in distinguishing two different systems and selecting a more suitable biofilter model for the analysis of experimental data in determining kinetic parameters.
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Foysal MJ, Nguyen TTT, Sialumano M, Phiri S, Chaklader MR, Fotedar R, Gagnon MM, Tay A. Zeolite mediated processing of nitrogenous waste in the rearing environment influences gut and sediment microbial community in freshwater crayfish (Cherax cainii) culture. CHEMOSPHERE 2022; 298:134276. [PMID: 35278449 DOI: 10.1016/j.chemosphere.2022.134276] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 03/06/2022] [Accepted: 03/07/2022] [Indexed: 06/14/2023]
Abstract
Zeolite is known to uptake toxic metals and filter nitrogenous waste from aquaculture effluents. The present study aimed to investigate the impacts of zeolite in three different applications namely, dietary zeolite (DZ), suspended zeolite (SZ) in the water column, and a combination of both (DZSZ) relative to unexposed freshwater crayfish, marron (control). At the end of the 56-days trial, the impact was assessed in terms of characterization of microbial communities in the culture environment and the intestine of marron. Alongside the microbial communities, the innate immune response of marron was also evaluated. The 16S rRNA data showed that marrons exposed to the suspended zeolite had a significant increase of bacterial diversity in the gut, including the restoration of marron core operational taxonomic units (OTUs), relative to other forms of exposures (DZ, DZSZ) and the control. Suspended zeolite alone also increased the number of unshared OTUs and genera, and improved predicted metabolic functions for the biosynthesis and digestion of proteins, amino acids, fatty acids, and hormones. In the tank sediment, the shift of microbial communities was connected more strongly with the time of experiment than the type of zeolite exposure. In the second case, only control marron had a different microbial ordination in terms of rare taxa present in the community. Nevertheless, the modulation in the gut environment was found more prominent in DZ, relative to modulation in the tank sediments. The taxa-environment correlation identified Rhodoferax as the most potential bacteria in removing nitrogenous waste from the rearing environment. Further analysis showed that SZ resulted in the upregulation of genes associated with the innate immune response of marron. Overall results suggest that SZ can be used to enrich microbial communities in the gut and tank sediments and better immune performance of marron.
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Affiliation(s)
- Md Javed Foysal
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh.
| | - Thi Thu Thuy Nguyen
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Experimental Biology, Research Institute for Aquaculture No. 2, Ho Chi Minh City, Viet Nam.
| | - Mavis Sialumano
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Veterinary Services, Ministry of Fisheries and Livestock, Zambia
| | - Simon Phiri
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Veterinary Services, Ministry of Fisheries and Livestock, Zambia
| | - Md Reaz Chaklader
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Primary Industries and Regional Development, Fleet Street, Fremantle, WA, Australia
| | - Ravi Fotedar
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia
| | | | - Alfred Tay
- Marshall Centre for Infectious Disease Research and Training, University of Western Australia, WA, Australia
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Foysal MJ, Fotedar R, Tay CY, Gupta SK. Biological filters regulate water quality, modulate health status, immune indices and gut microbiota of freshwater crayfish, marron (Cherax cainii, Austin, 2002). CHEMOSPHERE 2020; 247:125821. [PMID: 31972484 DOI: 10.1016/j.chemosphere.2020.125821] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 01/02/2020] [Accepted: 01/02/2020] [Indexed: 06/10/2023]
Abstract
Water quality has significant impacts on the health and immune responses of aquaculture species. This study aimed to analyse and compare the effects of two biological filters namely, gravel and, Bio-Ball with a recently developed filter called Water-cleanser on regulation of water quality parameters, health and immune response of marron reared in plastic tanks for 60 days. Results showed that addition of Bio-Ball significantly (P < 0.05) reduced the concentration of ammonia, nitrate and phosphate while Water-cleanser showed the ability to reduce ammonia and nitrate from water in aquaculture tanks. Although the biological filters had no significant effect on marron growth but inclusion of Bio-Ball and Water-cleanser positively influenced the biochemical composition of tail muscle and some haemolymph parameters of marron. The next generation sequence data demonstrated higher bacterial diversity in the hindgut of marron with Water-cleanser, followed by Bio-Ball and gravel, respectively. In addition, the predicted metabolic pathways revealed a significantly higher bacterial activity and gene function correlated to metabolism and biosynthesis of protein, energy and secondary metabolites in Bio-Ball and Water-cleanser. Bio-Ball and Water-cleanser were also associated with up-regulation of innate immune responsive genes of marron gut. Overall, Bio-Ball and Water-cleanser proved to have higher water remediation and immune response modulation capabilities, and therefore could be used as preferred filters for growth of beneficial bacteria in crayfish culture.
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Affiliation(s)
- Md Javed Foysal
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia; Department of Genetic Engineering and Biotechnology, Shahjalal University of Science and Technology, Sylhet, Bangladesh.
| | - Ravi Fotedar
- School of Molecular and Life Sciences, Curtin University, Bentley, WA, Australia
| | - Chin-Yen Tay
- Helicobacter Research Laboratory, Marshall Centre for Infectious Disease Research and Training, School of Biomedical Sciences, University of Western Australia, Perth, WA, Australia
| | - Sanjay K Gupta
- ICAR-Indian Institute of Agricultural Biotechnology, Ranchi, Jharkhand, India
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Foysal M, Fotedar R, Gupta S, Chaklader M. Biological ball filters regulate bacterial communities in marron (
Cherax cainii
) culture system. Lett Appl Microbiol 2019; 68:455-463. [DOI: 10.1111/lam.13125] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 01/29/2019] [Accepted: 01/30/2019] [Indexed: 11/28/2022]
Affiliation(s)
- M.J. Foysal
- School of Molecular and Life Sciences Curtin University Bentley WA Australia
- Department of Genetic Engineering and Biotechnology Shahjalal University of Science and Technology Sylhet Bangladesh
| | - R. Fotedar
- School of Molecular and Life Sciences Curtin University Bentley WA Australia
| | - S.K. Gupta
- School of Molecular and Life Sciences Curtin University Bentley WA Australia
- ICAR‐Indian Institute of Agricultural Biotechnology Ranchi India
| | - M.R. Chaklader
- School of Molecular and Life Sciences Curtin University Bentley WA Australia
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