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Hydrogen injection reduces ammonia nitrogen and changes microbial community composition in aquaculture water

文献类型： 外文期刊

作者： Ning, Shengdi 1 ; Hu, Junru 2 ; Yu, Jie 1 ; Huang, Long 3 ; Lai, Minjian 3 ; Li, Xiangni 3 ; Lin, Yongchun 4 ; Zhong, Wanqing 1 ; Wang, Lei 1 ;

作者机构： 1.South China Normal Univ, Inst Modern Aquaculture Sci & Engn IMASE, Sch Life Sci,Guangzhou Key Lab Subtrop Biodivers &, Guangdong Prov Key Lab Hlth & Safe Aquaculture,Key, Guangzhou, Peoples R China

2.Guangdong Acad Agr Sci, Inst Anim Sci, Key Lab Anim Nutr & Feed Sci South China, Guangdong Publ Lab Anim Breeding & Nutr, Guangzhou, Peoples R China

3.Foshan Inst Agr Sci, Foshan, Peoples R China

4.Guangdong Cawolo Hydrogen Technol Co Ltd, Foshan, Peoples R China

关键词： hydrogen; aquaculture water; nitrogen and phosphorus removal; ammonia nitrogen removal; microbial community

期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：3.7； 五年影响因子：4.7 ）

ISSN：

年卷期： 2023 年 10 卷

页码：

收录情况： SCI

摘要： The study aimed to investigate the effect of hydrogen on nitrogen and phosphorus removal and microbial community composition in aquaculture water. Two groups were designed separated: Group H was charged with hydrogen and Group D was set as control. Water samples were collected at 0, 1, 2, 3, 4, 5, 6, and 7 days after hydrogen injection to detect not only the content of total nitrogen, ammonia nitrogen and phosphorus, but also microbial community composition in aquaculture water. Our findings have demonstrated that 7-days' hydrogen treatment could effectively reduce ammonia nitrogen in aquaculture water. And in Day 7, the concentration of ammonia nitrogen in Group D was 1.66 times as that in Group H. Meanwhile, microbial structures in the water bodies of these two groups were significantly different. The abundance of bacteria such as Proteobacteria, Firmicutes, Bacteroidetes, and Desulphuria increased clearly in Group H, which means nitrification and denitrification occurred in the effect of hydrogen injection. These findings suggested that hydrogen could significantly improve aquaculture water health and reduce the production of ammonia nitrogen, which means hydrogen could be used as a functional external method to protect the aquaculture environment.

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