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Volume 16 Issue 1
Mar.  2025
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PENG Zhaoning, ZHU Yanyun, YU Feng, GU Zhifeng. Effects of aquatic plants on biofilm formation and ammonia nitrogen transformation in the bog filtration System[J]. Journal of Tropical Biology, 2025, 16(1): 125-133. doi: 10.15886/j.cnki.rdswxb.20240035
Citation: PENG Zhaoning, ZHU Yanyun, YU Feng, GU Zhifeng. Effects of aquatic plants on biofilm formation and ammonia nitrogen transformation in the bog filtration System[J]. Journal of Tropical Biology, 2025, 16(1): 125-133. doi: 10.15886/j.cnki.rdswxb.20240035

Effects of aquatic plants on biofilm formation and ammonia nitrogen transformation in the bog filtration System

doi: 10.15886/j.cnki.rdswxb.20240035
  • Received Date: 2024-03-02
  • Rev Recd Date: 2024-04-03
  • Publish Date: 2025-03-15
  • Four different species of plant were compared in terms of their effects on nitrogen transformation during the microbial biofilm forming period and post-forming period in the bog filtration system in order to provide a scientific basis for the construction of an effective bog filtration system for treating aquaculture wastewater. The results showed that all the treatment groups reached a peak in concentration of ammonia nitrogen in on the 5th day and then declined, initially increased and then decreased in the concentration of nitrite, and gradually increased in the concentration of nitrate before slightly decreasing. All experimental groups have lower concentrations of nitrate compared to the control group. MC group had the highest biomass growth(fresh weight increase of(56.87 ± 1.81) g, plant height increase of(30.7 ± 4.12) cm, root length increase of(7.70 ± 2.52) cm)and had the best effect on inorganic nitrogen transformation and absorption of nitrate(with a 71.1% lower concentration of nitrate on the 30th day compared to the control group). In the post-biofilm-forming expermient,MC group had the fastest ammonia nitrogen removal time(84 hours) and a nitrate removal rate of 25.6%, higher than the other treatment groups. In conclusion, the MC group exhibited the best performance in the transformation and absorption of nitrogen, providing an efficient filtration method for recirculating water treatment in aquaculture and offering valuable guidance for plant selection in bog filtration systems.
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Effects of aquatic plants on biofilm formation and ammonia nitrogen transformation in the bog filtration System

doi: 10.15886/j.cnki.rdswxb.20240035

Abstract: Four different species of plant were compared in terms of their effects on nitrogen transformation during the microbial biofilm forming period and post-forming period in the bog filtration system in order to provide a scientific basis for the construction of an effective bog filtration system for treating aquaculture wastewater. The results showed that all the treatment groups reached a peak in concentration of ammonia nitrogen in on the 5th day and then declined, initially increased and then decreased in the concentration of nitrite, and gradually increased in the concentration of nitrate before slightly decreasing. All experimental groups have lower concentrations of nitrate compared to the control group. MC group had the highest biomass growth(fresh weight increase of(56.87 ± 1.81) g, plant height increase of(30.7 ± 4.12) cm, root length increase of(7.70 ± 2.52) cm)and had the best effect on inorganic nitrogen transformation and absorption of nitrate(with a 71.1% lower concentration of nitrate on the 30th day compared to the control group). In the post-biofilm-forming expermient,MC group had the fastest ammonia nitrogen removal time(84 hours) and a nitrate removal rate of 25.6%, higher than the other treatment groups. In conclusion, the MC group exhibited the best performance in the transformation and absorption of nitrogen, providing an efficient filtration method for recirculating water treatment in aquaculture and offering valuable guidance for plant selection in bog filtration systems.

PENG Zhaoning, ZHU Yanyun, YU Feng, GU Zhifeng. Effects of aquatic plants on biofilm formation and ammonia nitrogen transformation in the bog filtration System[J]. Journal of Tropical Biology, 2025, 16(1): 125-133. doi: 10.15886/j.cnki.rdswxb.20240035
Citation: PENG Zhaoning, ZHU Yanyun, YU Feng, GU Zhifeng. Effects of aquatic plants on biofilm formation and ammonia nitrogen transformation in the bog filtration System[J]. Journal of Tropical Biology, 2025, 16(1): 125-133. doi: 10.15886/j.cnki.rdswxb.20240035
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