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Six complex microbial inoculants for removing ammonia nitrogen from waters
Water Environment Research Pub Date : 2022-12-04 , DOI: 10.1002/wer.10823 Chunmeng Sun 1 , Cong Li 1 , Kai Zhang 1 , Xingmao Ma 2 , Yunshu Zhang 1
Water Environment Research Pub Date : 2022-12-04 , DOI: 10.1002/wer.10823 Chunmeng Sun 1 , Cong Li 1 , Kai Zhang 1 , Xingmao Ma 2 , Yunshu Zhang 1
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To determine the effect of microbial inoculants on the removal of ammonia nitrogen (NH4+-N), six different complex microbial inoculants were studied. In this study, their effectiveness on NH4+-N removal was compared, and their microbial community composition was determined. High-throughput sequencing results showed that Proteobacteria and Firmicutes were the dominant phyla in six samples. Before the reaction, Bacillus, Cyanobacteria, and Mitochondria genera were the dominant genera. The dominant genera were significantly different after the reaction with the addition of bacterial agents. The six water samples were Massilia, Escherichia-Shigella, Brevibacillus, Mitsuaria, Bacillus, and Ralstonia. Among the six complex microbial inoculants, “Gandu nitrifying bacteria (NR4)” have the best removal effect on NH4+-N. In addition, the removal effect of six different bacterial agents on chemical oxygen demand (COD) was compared. The results showed that “Bilaiqing ammonia nitrogen removal bacteria agent (NR5)” has the best removal effect on COD. Single-factor experiments suggested that the optimal conditions for NR4 bacteria were pH 7, 30°C, 1.0 g/L of bacterial agent dosage and a wide range of NH4+-N from 30 to 300 mg/L.
中文翻译：
六种用于去除水中氨氮的复合微生物接种剂
为了确定微生物接种剂对去除氨氮 (NH 4 + -N) 的影响，研究了六种不同的复合微生物接种剂。在这项研究中，比较了它们去除 NH 4 + -N 的效果，并确定了它们的微生物群落组成。高通量测序结果表明，Proteobacteria 和 Firmicutes 是六个样品中的优势门。反应前，芽孢杆菌属、蓝细菌属和线粒体属是优势属。加入菌剂反应后优势属明显不同。6个水样分别为马氏菌、大肠杆菌-志贺氏菌, Brevibacillus , Mitsuaria , Bacillus , and Ralstonia . 在六种复合菌剂中，“甘毒硝化菌（NR 4）”对NH 4 + -N的去除效果最好。此外，比较了六种不同菌剂对化学需氧量（COD）的去除效果。结果表明，“必来清氨氮去除菌剂（NR 5）”对COD的去除效果最好。单因素实验表明，NR 4菌的最佳生长条件为pH 7、30℃、菌剂用量1.0 g/L和NH 4 + -N 30至300 mg/L的宽范围。
更新日期：2022-12-04
中文翻译：
六种用于去除水中氨氮的复合微生物接种剂
为了确定微生物接种剂对去除氨氮 (NH 4 + -N) 的影响，研究了六种不同的复合微生物接种剂。在这项研究中，比较了它们去除 NH 4 + -N 的效果，并确定了它们的微生物群落组成。高通量测序结果表明，Proteobacteria 和 Firmicutes 是六个样品中的优势门。反应前，芽孢杆菌属、蓝细菌属和线粒体属是优势属。加入菌剂反应后优势属明显不同。6个水样分别为马氏菌、大肠杆菌-志贺氏菌, Brevibacillus , Mitsuaria , Bacillus , and Ralstonia . 在六种复合菌剂中，“甘毒硝化菌（NR 4）”对NH 4 + -N的去除效果最好。此外，比较了六种不同菌剂对化学需氧量（COD）的去除效果。结果表明，“必来清氨氮去除菌剂（NR 5）”对COD的去除效果最好。单因素实验表明，NR 4菌的最佳生长条件为pH 7、30℃、菌剂用量1.0 g/L和NH 4 + -N 30至300 mg/L的宽范围。
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