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Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity

1000 kHz high-frequency ultrasound at 0.12 and 0.39 W/mL intensity was used to enhance the inactivation of suspensions of Microcystis aeruginosa cells using KMnO(4). With 10 mg/L of KMnO(4), ultrasound at 0.12 W/mL intensity was found to be effective in inactivating the cyanobacteria within 10 min....

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Detalles Bibliográficos
Autores principales: Wang, JuanJuan, Wang, Yuting, Li, Wenshu., Wu, Xiaoge
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10320383/
https://www.ncbi.nlm.nih.gov/pubmed/37379744
http://dx.doi.org/10.1016/j.ultsonch.2023.106502
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author Wang, JuanJuan
Wang, Yuting
Li, Wenshu.
Wu, Xiaoge
author_facet Wang, JuanJuan
Wang, Yuting
Li, Wenshu.
Wu, Xiaoge
author_sort Wang, JuanJuan
collection PubMed
description 1000 kHz high-frequency ultrasound at 0.12 and 0.39 W/mL intensity was used to enhance the inactivation of suspensions of Microcystis aeruginosa cells using KMnO(4). With 10 mg/L of KMnO(4), ultrasound at 0.12 W/mL intensity was found to be effective in inactivating the cyanobacteria within 10 min. A Weibull model was found to describes the inactivation well. Its concave shape shows that some cells have a certain resistance to this treatment. Cytometry and microscopic analysis confirm that the treatment damages cell integrity. Despite that the extracellular organic matter in the water was not significantly increased. The concentration of extracellular cyanobacterial toxins even decreased. The filtered suspension of inactivated cyanobacteria was used to cultivate mung beans, and the suspension did not hinder their germination. This provides a new idea for using cyanobacteria-laden wastewater. These findings suggest a technique for speeding up the oxidation of Microcystis cells using KMnO(4) with ultrasound at moderate intensity, which provide new insights into the biological effects of ultrasound.
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spelling pubmed-103203832023-07-06 Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity Wang, JuanJuan Wang, Yuting Li, Wenshu. Wu, Xiaoge Ultrason Sonochem Original Research Article 1000 kHz high-frequency ultrasound at 0.12 and 0.39 W/mL intensity was used to enhance the inactivation of suspensions of Microcystis aeruginosa cells using KMnO(4). With 10 mg/L of KMnO(4), ultrasound at 0.12 W/mL intensity was found to be effective in inactivating the cyanobacteria within 10 min. A Weibull model was found to describes the inactivation well. Its concave shape shows that some cells have a certain resistance to this treatment. Cytometry and microscopic analysis confirm that the treatment damages cell integrity. Despite that the extracellular organic matter in the water was not significantly increased. The concentration of extracellular cyanobacterial toxins even decreased. The filtered suspension of inactivated cyanobacteria was used to cultivate mung beans, and the suspension did not hinder their germination. This provides a new idea for using cyanobacteria-laden wastewater. These findings suggest a technique for speeding up the oxidation of Microcystis cells using KMnO(4) with ultrasound at moderate intensity, which provide new insights into the biological effects of ultrasound. Elsevier 2023-06-24 /pmc/articles/PMC10320383/ /pubmed/37379744 http://dx.doi.org/10.1016/j.ultsonch.2023.106502 Text en © 2023 The Authors. Published by Elsevier B.V. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original Research Article
Wang, JuanJuan
Wang, Yuting
Li, Wenshu.
Wu, Xiaoge
Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity
title Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity
title_full Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity
title_fullStr Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity
title_full_unstemmed Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity
title_short Enhancement of KMnO(4) treatment on cyanobacteria laden-water via 1000 kHz ultrasound at a moderate intensity
title_sort enhancement of kmno(4) treatment on cyanobacteria laden-water via 1000 khz ultrasound at a moderate intensity
topic Original Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10320383/
https://www.ncbi.nlm.nih.gov/pubmed/37379744
http://dx.doi.org/10.1016/j.ultsonch.2023.106502
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