The removal effects of combination of Bacillus and Vallisneria denseserrulata on nitrogen and phosphorus in water

doi:10.14088/j.cnki.issn0439-8114.2025.04.015

Abstract

Abstract: A microbial and aquatic plant combined system was constructed using Bacillus and Vallisneria denseserrulata to investigate its effects on nitrogen and phosphorus removal in water and growth changes of plants. The results showed that the total nitrogen (TN) removal rate of the combined group of Bacillus compound bacteria and V. denseserrulata could reach 79.29%, which was higher than that of the individual application of V. denseserrulata and Bacillus compound bacteria. However, the removal efficiency of Bacillus compound bacteria on phosphorus was 33.58%, which was lower than that in the individual application group of V. denseserrulata (75.62%) and the combined group (65.31%). On the whole, the combined use of Bacillus and V. denseserrulata had a good effect on denitrification of water bodies and was beneficial to the growth of aquatic plants, but the individual application of Bacillus had a poor effect on phosphorus removal in eutrophic water bodies.

Key words: microorganisms, Bacillus, aquatic plants, Vallisneria denseserrulata, total nitrogen, total phosphorus, removal rate

CLC Number:

CHEN Xuan, MENG Jian-jun, SUN Cong, WANG Jian, DENG Ping, DAI Yu-tai, HAN Xiao-fang, GUO Biao-hui. The removal effects of combination of Bacillus and Vallisneria denseserrulata on nitrogen and phosphorus in water[J]. HUBEI AGRICULTURAL SCIENCES, 2025, 64(4): 84-89.

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