The effect of graphene and graphene-oxide nanoparticles on the aerobic granular sludge wastewater treatment process

Rónavári Andrea and Kedves Alfonz and Kónya Zoltán: The effect of graphene and graphene-oxide nanoparticles on the aerobic granular sludge wastewater treatment process.

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Abstract

The responses of aerobic granular sludge (AGS) to the presence of graphene and graphene-oxide nanoparticles (G and GO NPs) at various concentrations (1, 5 and 10 mg/L) during biological wastewater treatment processes were investigated. Bioreactor performance and extracellular polymeric substance (EPS) secretion were assessed. The results showed that the effects of G and GO NPs on bioreactor performances were dependent on the material and dose applied, especially in terms of chemical oxygen demand (COD) and phosphorus removal. Nitrite and nitrate removal rates were unchanged. The secretion of EPS, which could alleviate the toxicity of GO NPs, also changed. GO NPs were found to be more toxic than G NPs, indicating that structural changes may affect their activity.

Item Type:	Conference or Workshop Item
Journal or Publication Title:	Proceedings of the International Symposium on Analytical and Environmental Problems
Date:	2023
Volume:	29
ISBN:	978-963-306-963-9
Page Range:	pp. 288-291
Language:	English
Publisher:	University of Szeged
Place of Publication:	Szeged
Event Title:	29th International Symposium on Analytical and Environmental Problems
Event Type:	Conference
Event Location:	Szeged
Event Dates:	2023. november 13-14.
Related URLs:	https://acta.bibl.u-szeged.hu/82256/
Uncontrolled Keywords:	Szennyvízkezelés, Környezetkémia
Additional Information:	Bibliogr.: 291. p. ; ill. ; összefoglalás angol nyelven
Subjects:	01. Natural sciences 01. Natural sciences > 01.04. Chemical sciences
Date Deposited:	2023. Nov. 27. 11:55
Last Modified:	2023. Nov. 27. 11:55
URI:	http://acta.bibl.u-szeged.hu/id/eprint/82454

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