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In order to improve the degradation efficiency of microbial electrolysis cells (MECs) treating butyric acid fermentation broth from excess sludge, this study investigated the influence of butyrate acclimation on degradation and microbial communities, with a focus on the changes of electrochemical characteristics, gas production, organics removal, and microbial community structure. Results showed that sodium butyrate acclimation enhanced current density and gas production rate during stable operation period. Moreover, when treating butyric acid fermentation broth, the acclimated system achieved higher peak current density (19A/m3), higher oxidation peak (78.1mA), and higher organics degradation rate (SCOD removal of 58.67%; VFAs removal of 41.76%), with energy recovery attaining 118.8%. Mechanism analysis revealed that sodium butyrate acclimation effectively enriched butyrate-oxidizing bacteria (Syntrophomonas), establishing more efficient metabolic pathway in comparison with sodium acetate acclimation, thereby ameliorating the degradation of butyric acid fermentation broth.

, authors=Yi-bo BAI1, 2, Xing SUN3, Kai HU1, 2, *, Wei CHEN1, 2, Hang XU1, 2, authorsList=Yi-bo BAI, Xing SUN, Kai HU, Wei CHEN, Hang XU, authorCompany=null, correspAuthors=Kai HU, authorNote=null, correspAuthorsNote=null, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1314922216467292854, articleId=1314922215959782068, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=驯化底物对微生物电解池降解丁酸型发酵液的影响, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

针对微生物电解池(MEC)处理剩余污泥丁酸型发酵液有机质降解率低的问题,探讨了丁酸驯化对丁酸型发酵液降解及微生物群落的影响,分析了电化学特性、产气性能、有机物去除和微生物群落结构响应.结果表明,丁酸钠驯化有效提高了系统的稳定输出电流密度,提升了产气速率.驯化后处理丁酸型发酵液时,该系统表现出更高的电流密度峰值(19A/m3)、更显著的氧化峰(峰值电流78.1mA)和更高的有机物降解率(SCOD去除率58.67%,VFAs去除率41.76%),能量回收率达118.8%.机制分析表明,丁酸钠驯化有效富集了丁酸氧化菌(Syntrophomonas),形成了比乙酸钠驯化系统更高效的代谢路径,从而强化了丁酸型发酵液的降解.

, authors=柏艺博1, 2, 孙杏3, 胡凯1, 2, *, 陈卫1, 2, 许航1, 2, authorsList=柏艺博, 孙杏, 胡凯, 陈卫, 许航, authorCompany=null, correspAuthors=胡凯, authorNote=

柏艺博(2000-),男,辽宁鞍山人,河海大学硕士研究生,主要研究方向为污水处理及资源化利用理论与技术.发表论文1篇..

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* 责任作者,副教授,
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柏艺博(2000-),男,辽宁鞍山人,河海大学硕士研究生,主要研究方向为污水处理及资源化利用理论与技术.发表论文1篇..

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柏艺博(2000-),男,辽宁鞍山人,河海大学硕士研究生,主要研究方向为污水处理及资源化利用理论与技术.发表论文1篇..

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驯化底物对微生物电解池降解丁酸型发酵液的影响
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柏艺博 1, 2 , 孙杏 3 , 胡凯 1, 2, * , 陈卫 1, 2 , 许航 1, 2
中国环境科学 | 水污染与控制 2026,46(2): 749-757
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中国环境科学 |水污染与控制 2026 , 46 (2) : 749 -757
驯化底物对微生物电解池降解丁酸型发酵液的影响
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柏艺博(2000-),男,辽宁鞍山人,河海大学硕士研究生,主要研究方向为污水处理及资源化利用理论与技术.发表论文1篇..

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柏艺博(2000-),男,辽宁鞍山人,河海大学硕士研究生,主要研究方向为污水处理及资源化利用理论与技术.发表论文1篇..

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柏艺博1, 2 , 孙杏3, 胡凯1, 2, * , 陈卫1, 2, 许航1, 2
作者信息
  • 1.河海大学,浅水湖泊综合治理与资源开发教育部重点实验室,江苏 南京 210098
  • 2.河海大学环境学院,江苏 南京 210098
  • 3.苏州市供排水管理处,江苏 苏州 215000
通讯作者:
* 责任作者,副教授,
作者简介:

柏艺博(2000-),男,辽宁鞍山人,河海大学硕士研究生,主要研究方向为污水处理及资源化利用理论与技术.发表论文1篇..

Effect of acclimation substrates on the degradation of butyric acid fermentation broth in microbial electrolysis cells
Yi-bo BAI1, 2 , Xing SUN3, Kai HU1, 2, * , Wei CHEN1, 2, Hang XU1, 2
Affiliations
  • 1.Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, Hohai University, Nanjing 210098, China
  • 2.College of Environment, Hohai University, Nanjing 210098, China
  • 3.Suzhou Water Supply and Drainage Management Office, Suzhou 215000, China
出版时间: 2026-02-20
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针对微生物电解池(MEC)处理剩余污泥丁酸型发酵液有机质降解率低的问题,探讨了丁酸驯化对丁酸型发酵液降解及微生物群落的影响,分析了电化学特性、产气性能、有机物去除和微生物群落结构响应.结果表明,丁酸钠驯化有效提高了系统的稳定输出电流密度,提升了产气速率.驯化后处理丁酸型发酵液时,该系统表现出更高的电流密度峰值(19A/m3)、更显著的氧化峰(峰值电流78.1mA)和更高的有机物降解率(SCOD去除率58.67%,VFAs去除率41.76%),能量回收率达118.8%.机制分析表明,丁酸钠驯化有效富集了丁酸氧化菌(Syntrophomonas),形成了比乙酸钠驯化系统更高效的代谢路径,从而强化了丁酸型发酵液的降解.

剩余污泥  /  丁酸型发酵液  /  微生物电解池  /  驯化底物  /  微生物群落

In order to improve the degradation efficiency of microbial electrolysis cells (MECs) treating butyric acid fermentation broth from excess sludge, this study investigated the influence of butyrate acclimation on degradation and microbial communities, with a focus on the changes of electrochemical characteristics, gas production, organics removal, and microbial community structure. Results showed that sodium butyrate acclimation enhanced current density and gas production rate during stable operation period. Moreover, when treating butyric acid fermentation broth, the acclimated system achieved higher peak current density (19A/m3), higher oxidation peak (78.1mA), and higher organics degradation rate (SCOD removal of 58.67%; VFAs removal of 41.76%), with energy recovery attaining 118.8%. Mechanism analysis revealed that sodium butyrate acclimation effectively enriched butyrate-oxidizing bacteria (Syntrophomonas), establishing more efficient metabolic pathway in comparison with sodium acetate acclimation, thereby ameliorating the degradation of butyric acid fermentation broth.

excess sludge  /  butyric acid fermentation broth  /  microbial electrolysis cell  /  acclimation substrates  /  microbial community
柏艺博, 孙杏, 胡凯, 陈卫, 许航. 驯化底物对微生物电解池降解丁酸型发酵液的影响. 中国环境科学, 2026 , 46 (2) : 749 -757 .
Yi-bo BAI, Xing SUN, Kai HU, Wei CHEN, Hang XU. Effect of acclimation substrates on the degradation of butyric acid fermentation broth in microbial electrolysis cells[J]. China Environmental Science, 2026 , 46 (2) : 749 -757 .
  • 国家重点研发计划(2023YFC3208900)
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  • 接收时间:2025-07-04
  • 首发时间:2026-10-08
  • 出版时间:2026-02-20
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  • 收稿日期:2025-07-04
基金
国家重点研发计划(2023YFC3208900)
作者信息
    1.河海大学,浅水湖泊综合治理与资源开发教育部重点实验室,江苏 南京 210098
    2.河海大学环境学院,江苏 南京 210098
    3.苏州市供排水管理处,江苏 苏州 215000

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* 责任作者,副教授,
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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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