Study on Purification Effect of Euryale ferox on Eutrophic Waters Along Huai River

doi:10.11924/j.issn.1000-6850.casb2023-0538

Abstract

Abstract:

In order to understand the purification effect of indigenous aquatic plant Euryale ferox on eutrophic rivers in rural areas along the Huai River, E. ferox were planted in simulated pools representing eutrophic river conditions in rural areas along the Huai River. The concentrations of total nitrogen (TN), ammonium nitrogen (NH₄⁺-N), total phosphorus (TP), chemical oxygen demand (COD_Cr), pH, electrical conductivity (EC), and dissolved oxygen (DO) in the water were regularly monitored. A comprehensive analysis was conducted to assess the purification effect of E. ferox on eutrophic rivers. The results indicated that E. ferox, as indigenous aquatic plants in the Huai River region, exhibited a purification effect on eutrophic rivers. During the growth process, E. ferox could absorb 95.53%-98.45% of NH₄⁺-N and 99.50%-99.65% of TP, demonstrating a favorable purification effect. However, the purification effect of E. ferox on TN and COD_Crin eutrophic rivers was not significant. Additionally, the pH of the water increased by 11.05% to 11.61%, EC values increased by 21.12% to 22%, and DO increased by 3.82 to 21.77 times.

Key words: Euryale ferox, eutrophic river, water purification, comprehensive analysis, removal of ammoniacal nitrogen, removal of total phosphorus, increase in dissolved oxygen, changes in pH levels, changes in soluble salt content

CHEN Maohua, YANG Yongxue, LIU Kun. Study on Purification Effect of Euryale ferox on Eutrophic Waters Along Huai River[J]. Chinese Agricultural Science Bulletin, 2024, 40(22): 66-71.

Figures/Tables 8

References 51

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