| Volume: 8; Issue: 1; June 2026 |
|---|
| Title : APPLICATION OF NANOBUBBLE AERATION TO MITIGATE GEOSMIN AND EUTROPHICATION IN AQUATIC SYSTEM |
| Authour(s): Hare Ram Devkota, Dilip Kumar Jha, Tista Prasai Joshi, Shreemat Shrestha and Roman Karki |
| Keywords: Aquatic ecosystem, Cyanobacteria, Eutrophication, Geosmin, Nanobubble aeration. |
| Abstract: Eutrophication and geosmin contaminations are the worldwide problems for the aquatic environment. The aim of this experiment was to determine and mitigate the impact of the nanobubble aeration on geosmin and eutrophication. The four methods applied as ultrasound, nanobubble air, positive control, and negative control. ATP bioluminescence methods are used to measure plankton density, and geosmins are measured by gas chromatography mass spectroscopy (GC-MS). The treatment effects were assessed using multiple regression, correlation and ANOVA. The result showed that the water changed from eutrophic to oligotrophic, which was a significant decrease in the trophic state index (TSI: 36.02±1.77), the reduction of plankton density by 75%, and geosmin from 300.66±1.15 ng/L to (171.58±0.017 ng/L). Therefore, it is the most effective method for removing inorganic elements from water. Correlation analyses showed that dissolved oxygen (DO) and geosmin had negative relationships, while eutrophication agents had positive correlations with plankton density. Regression analysis showed that geosmin was a significant contributor to DO. The results show that nanobubble aeration is the most effective, sustainable, and environmentally friendly method for reducing plankton and geosmin and improving overall water quality, thereby contributing to the long-term conservation of aquatic ecosystems. |
| DOI: https://doi.org/10.46505/IJBI.2026.8114 |
| How to cite this article: Devkota H.R., Jha D.K., Joshi T.P., Shrestha S. and Karki R. (2026). Application of nanobubble aeration to mitigate geosmin and eutrophication in aquatic system. International Journal of Biological Innovations. 8(1): 129-136. https://doi.org/10.46505/IJBI.2026.8114 |
Pages: 129-136 | Viewed: 10 | Downloaded: 3| Download: PDF (1948KB) |
