Exploring the interaction between quorum sensing and sludge physical properties in Anammox systems

IF 9.7 1区环境科学与生态学 Q1 AGRICULTURAL ENGINEERING

Bioresource Technology Pub Date : 2025-02-20 DOI:10.1016/j.biortech.2025.132224

Yanjun Zhu , Dong Li , Sibo Fu , Hongpeng Li , Sen Yang , Songyue Li , Yuliang Zhu , Huiping Zeng , Jie Zhang

{"title":"Exploring the interaction between quorum sensing and sludge physical properties in Anammox systems","authors":"Yanjun Zhu , Dong Li , Sibo Fu , Hongpeng Li , Sen Yang , Songyue Li , Yuliang Zhu , Huiping Zeng , Jie Zhang","doi":"10.1016/j.biortech.2025.132224","DOIUrl":null,"url":null,"abstract":"<div><div>Quorum sensing(QS) is a crucial aspect of Anammox(anaerobic ammonium oxidation) technology operation. Given the difficulty of accumulating Anammox bacteria, the favorable characteristics of sludge are vital for optimizing the stable operation of Anammox systems. Therefore, it is essential to study the interaction between QS and the physical properties of sludge in the Anammox process. In this study, the extended Derjaguin-Landau-Verwey-Overbeek(XDLVO) theory and rheological properties were used to determine the physical characteristics of different Anammox sludges, subsequently the relationship between these properties and signaling molecules, microorganisms and extracellular polymeric substances(EPS) was analyzed. The results indicated that certain physical properties, such as elasticity, sludge aggregation capability, and hydrophobicity, were significantly correlated with specific signaling molecules. Additionally, the dynamic changes in microbial community structure were one of the main causes of changes in the levels of signaling molecules, which stimulated the nitrogen removal performance and also affected the properties of the sludge.</div></div>","PeriodicalId":258,"journal":{"name":"Bioresource Technology","volume":"424 ","pages":"Article 132224"},"PeriodicalIF":9.7000,"publicationDate":"2025-02-20","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/S0960852425001907","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}

引用次数: 0

Abstract

Quorum sensing(QS) is a crucial aspect of Anammox(anaerobic ammonium oxidation) technology operation. Given the difficulty of accumulating Anammox bacteria, the favorable characteristics of sludge are vital for optimizing the stable operation of Anammox systems. Therefore, it is essential to study the interaction between QS and the physical properties of sludge in the Anammox process. In this study, the extended Derjaguin-Landau-Verwey-Overbeek(XDLVO) theory and rheological properties were used to determine the physical characteristics of different Anammox sludges, subsequently the relationship between these properties and signaling molecules, microorganisms and extracellular polymeric substances(EPS) was analyzed. The results indicated that certain physical properties, such as elasticity, sludge aggregation capability, and hydrophobicity, were significantly correlated with specific signaling molecules. Additionally, the dynamic changes in microbial community structure were one of the main causes of changes in the levels of signaling molecules, which stimulated the nitrogen removal performance and also affected the properties of the sludge.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Bioresource Technology 工程技术-能源与燃料

CiteScore

20.80

自引率

19.30%

发文量

2013

审稿时长

12 days

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.