Next Article in Journal
Effect of Ultrasonic, Thermal and Enzymatic Treatment of Mash on Yield and Content of Bioactive Compounds in Strawberry Juice
Next Article in Special Issue
Removal of Reactive Yellow 86 from Synthetic Wastewater in Lab-Scale Constructed Wetlands Planted with Cattail and Papyrus
Previous Article in Journal
Nano Aerial Vehicles for Tree Pollination
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Applied Sciences
Volume 13
Issue 7
10.3390/app13074266
applsci-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

Microalgal Systems, a Green Solution for Wastewater Conventional Pollutants Removal, Disinfection, and Reduction of Antibiotic Resistance Genes Prevalence?

by
Helena M. Amaro
1,2,*,
Joana F. Sousa
1,2,
Eva M. Salgado
1,2,
José C. M. Pires
1,2,* and
Olga C. Nunes
1,2
1
LEPABE—Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
2
ALiCE—Associate Laboratory in Chemical Engineering, Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
*
Authors to whom correspondence should be addressed.
Appl. Sci. 2023, 13(7), 4266; https://doi.org/10.3390/app13074266
Submission received: 25 January 2023 / Revised: 20 February 2023 / Accepted: 25 March 2023 / Published: 28 March 2023
(This article belongs to the Special Issue Editorial Board Members' Collection Series: Remove of Pollutants for Green and Healthy Environment)
Browse Figures
Review Reports Versions Notes

Abstract

The low-efficiency rate of urban wastewater (UWW) treatment generates tons of discharged water with a high concentration of pollutants, pathogens and antibiotic-resistance genes (ARGs). Microalgal systems may be a green alternative to be implemented as a UWW polishing treatment. This study assessed the ability of Chlorella vulgaris and UWW autochthonous microalgal species (AMS) to simultaneously remove PO4–P, and reduce the proliferation of coliforms and ARGs. AMS seems to be more promising due to: (i) the higher specific growth rate, μmax (0.687 ± 0.065 d−1); (ii) efficient PO4–P removal (92.62 ± 0.10%); (iii) faster reduction of coliforms proliferation achieving concentrations below the limits of quantification (6 d); (iv) the reduction of intl1 and the ARGs sul1 and blaTEM abundance in ca. of 70.4%, 69.2%, and 75.7%, respectively (9 d); and (v) the additional reduction of these genes in ca. of 97.1%, 94.2%, and 99.9%, respectively, after 5 d storage in the dark and at room temperature. Results also revealed that the high pH values in both microalgal systems (due to microalgal growth) were highly correlated with a reduction in the proliferation of coliforms, including Escherichia coli. In conclusion, using AMS as a final polishing treatment of UWW seems to be very promising.
Keywords: wastewater treatment; microalgae technology; reduction of pathogens proliferation; antibiotic resistance wastewater treatment; microalgae technology; reduction of pathogens proliferation; antibiotic resistance

Share and Cite

MDPI and ACS Style

Amaro, H.M.; Sousa, J.F.; Salgado, E.M.; Pires, J.C.M.; Nunes, O.C. Microalgal Systems, a Green Solution for Wastewater Conventional Pollutants Removal, Disinfection, and Reduction of Antibiotic Resistance Genes Prevalence? Appl. Sci. 2023, 13, 4266. https://doi.org/10.3390/app13074266

AMA Style

Amaro HM, Sousa JF, Salgado EM, Pires JCM, Nunes OC. Microalgal Systems, a Green Solution for Wastewater Conventional Pollutants Removal, Disinfection, and Reduction of Antibiotic Resistance Genes Prevalence? Applied Sciences. 2023; 13(7):4266. https://doi.org/10.3390/app13074266

Chicago/Turabian Style

Amaro, Helena M., Joana F. Sousa, Eva M. Salgado, José C. M. Pires, and Olga C. Nunes. 2023. "Microalgal Systems, a Green Solution for Wastewater Conventional Pollutants Removal, Disinfection, and Reduction of Antibiotic Resistance Genes Prevalence?" Applied Sciences 13, no. 7: 4266. https://doi.org/10.3390/app13074266

APA Style

Amaro, H. M., Sousa, J. F., Salgado, E. M., Pires, J. C. M., & Nunes, O. C. (2023). Microalgal Systems, a Green Solution for Wastewater Conventional Pollutants Removal, Disinfection, and Reduction of Antibiotic Resistance Genes Prevalence? Applied Sciences, 13(7), 4266. https://doi.org/10.3390/app13074266

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop