Zilong Hou , Wenyi Dong , Yanchen Li , Shuo Chen , Huaguang Liu , Qi Han , Zilong Zhao , Jie Liu , Liang Zhang , Hongjie Wang , Yongzhen Peng
{"title":"在部分反硝化/氨氧化系统中实现有效的氨氧化贡献和功能菌的富集：性能、微生物进化和相关性分析。","authors":"Zilong Hou , Wenyi Dong , Yanchen Li , Shuo Chen , Huaguang Liu , Qi Han , Zilong Zhao , Jie Liu , Liang Zhang , Hongjie Wang , Yongzhen Peng","doi":"10.1016/j.biortech.2024.131792","DOIUrl":null,"url":null,"abstract":"<div><div>The primary challenge of applying partial denitrification/anammox (PD/A) to municipal wastewater treatment lied in the enrichment of functional bacteria with a considerable autotrophic nitrogen removal performance. The results showed influent NO<sub>3</sub><sup>−</sup>-N: NH<sub>4</sub><sup>+</sup>-N, reaction time and temperature would influence anammox nitrogen removal contribution. <sup>15</sup>N isotopic tracing technology further revealed the average anammox contribution rate was up to 94.8 %. Extending reaction time was an effective measure to improve simultaneously PD and anammox activity. Microbial community indicated partial denitrifying bacteria (<em>Bacillus</em>) and anammox bacteria (<em>Candidatus Brocadia</em>) were enriched with abundance of 27.27 % and 7.09 % at NO<sub>3</sub><sup>−</sup>-N: NH<sub>4</sub><sup>+</sup>-N of 1:1. The correlation analysis showed that NO<sub>3</sub><sup>−</sup>-N: NH<sub>4</sub><sup>+</sup>-N ratio played the positive role for <em>Bacillus</em> enrichment, and low temperature was favorable to the enrichment of <em>Thauera</em> and <em>Candidatus Jettenia</em>. Overall, this study demonstrated the reasonable operational strategy would strengthen anammox contribution and facilitate enrichment of functional bacteria.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"416 ","pages":"Article 131792"},"PeriodicalIF":9.7000,"publicationDate":"2024-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Achieving efficient anammox contribution and the enrichment of functional bacteria in partial denitrification/anammox system: Performance, microbial evolution and correlation analysis\",\"authors\":\"Zilong Hou , Wenyi Dong , Yanchen Li , Shuo Chen , Huaguang Liu , Qi Han , Zilong Zhao , Jie Liu , Liang Zhang , Hongjie Wang , Yongzhen Peng\",\"doi\":\"10.1016/j.biortech.2024.131792\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The primary challenge of applying partial denitrification/anammox (PD/A) to municipal wastewater treatment lied in the enrichment of functional bacteria with a considerable autotrophic nitrogen removal performance. The results showed influent NO<sub>3</sub><sup>−</sup>-N: NH<sub>4</sub><sup>+</sup>-N, reaction time and temperature would influence anammox nitrogen removal contribution. <sup>15</sup>N isotopic tracing technology further revealed the average anammox contribution rate was up to 94.8 %. Extending reaction time was an effective measure to improve simultaneously PD and anammox activity. Microbial community indicated partial denitrifying bacteria (<em>Bacillus</em>) and anammox bacteria (<em>Candidatus Brocadia</em>) were enriched with abundance of 27.27 % and 7.09 % at NO<sub>3</sub><sup>−</sup>-N: NH<sub>4</sub><sup>+</sup>-N of 1:1. The correlation analysis showed that NO<sub>3</sub><sup>−</sup>-N: NH<sub>4</sub><sup>+</sup>-N ratio played the positive role for <em>Bacillus</em> enrichment, and low temperature was favorable to the enrichment of <em>Thauera</em> and <em>Candidatus Jettenia</em>. Overall, this study demonstrated the reasonable operational strategy would strengthen anammox contribution and facilitate enrichment of functional bacteria.</div></div>\",\"PeriodicalId\":258,\"journal\":{\"name\":\"Bioresource Technology\",\"volume\":\"416 \",\"pages\":\"Article 131792\"},\"PeriodicalIF\":9.7000,\"publicationDate\":\"2024-11-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Bioresource Technology\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0960852424014962\",\"RegionNum\":1,\"RegionCategory\":\"环境科学与生态学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"AGRICULTURAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Bioresource Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0960852424014962","RegionNum":1,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"AGRICULTURAL ENGINEERING","Score":null,"Total":0}
Achieving efficient anammox contribution and the enrichment of functional bacteria in partial denitrification/anammox system: Performance, microbial evolution and correlation analysis
The primary challenge of applying partial denitrification/anammox (PD/A) to municipal wastewater treatment lied in the enrichment of functional bacteria with a considerable autotrophic nitrogen removal performance. The results showed influent NO3−-N: NH4+-N, reaction time and temperature would influence anammox nitrogen removal contribution. 15N isotopic tracing technology further revealed the average anammox contribution rate was up to 94.8 %. Extending reaction time was an effective measure to improve simultaneously PD and anammox activity. Microbial community indicated partial denitrifying bacteria (Bacillus) and anammox bacteria (Candidatus Brocadia) were enriched with abundance of 27.27 % and 7.09 % at NO3−-N: NH4+-N of 1:1. The correlation analysis showed that NO3−-N: NH4+-N ratio played the positive role for Bacillus enrichment, and low temperature was favorable to the enrichment of Thauera and Candidatus Jettenia. Overall, this study demonstrated the reasonable operational strategy would strengthen anammox contribution and facilitate enrichment of functional bacteria.
期刊介绍：
Bioresource Technology publishes original articles, review articles, case studies, and short communications covering the fundamentals, applications, and management of bioresource technology. The journal seeks to advance and disseminate knowledge across various areas related to biomass, biological waste treatment, bioenergy, biotransformations, bioresource systems analysis, and associated conversion or production technologies.
Topics include:
• Biofuels: liquid and gaseous biofuels production, modeling and economics
• Bioprocesses and bioproducts: biocatalysis and fermentations
• Biomass and feedstocks utilization: bioconversion of agro-industrial residues
• Environmental protection: biological waste treatment
• Thermochemical conversion of biomass: combustion, pyrolysis, gasification, catalysis.
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