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The typical low-C/N municipal wastewater (COD, ammonia, total nitrogen of 258.1, 30.5, 36.8mg/L) in South China was treated by membrane aerated biofilm reactor (MABR) process. By means of synchronously reducing hydraulic retention time (HRT) and increasing aeration pressure, the results showed that effluent COD met the discharge standard of level I class B, and effluent ammonia and total nitrogen met the discharge standard of level I class A at the individual HRT and selected aeration pressure combinations of 24h and 5kPa, 12h and 7kPa, 8h and 8kPa, 6h and 10kPa, 4h and 12kPa. The maximum surface and volume load removal of COD, ammonia nitrogen, total nitrogen achieved 19.2, 2.26, 2.53g/(m²·d) and 1.6, 0.19, 0.21g/(L·d), respectively, which showed significantly better performance of MABR than conventional biofilm and activated sludge processes. Oxygen transfer characterization showed that biofilm significantly enhanced the oxygen transfer rate (19.5~40.6gO₂/(m²·d)), oxygen transfer efficiency (30.9%~59.8%) and aeration efficiency (34.2~48.3kgO₂/kWh) of the investigated hollow fiber aeration membrane, implying the autonomous respiration of biofilm (i.e., automatically withdrawing the oxygen demand via aeration membrane to match the oxygen consumption caused by the influent load of ammonia nitrogen and COD). Thus, there is a significant potential for reducing pollution, carbon emission, energy consumption and cost for municipal wastewater treatment via MABR coupling intermittent aeration, synchronous coagulation, periodical detachment of excessive thick outer biofilm, adjustment of aeration flow and inlet/outlet pressure of membrane module to match the pollutants load.

, authors=Xing JIANG^{1, 2}, Chun-hai WEI^{1, 3, *}, Zhe YUAN¹, Xin-yu ZHAI¹, Zhi-hui PAN^{1, 3}, Tao LIU^{1, 3}, Li-qiu ZHANG^{1, 3, **}, authorsList=Xing JIANG, Chun-hai WEI, Zhe YUAN, Xin-yu ZHAI, Zhi-hui PAN, Tao LIU, Li-qiu ZHANG, authorCompany=null, correspAuthors=Chun-hai WEI, Li-qiu ZHANG, 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=1314917741463700029, articleId=1314917740264129083, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=MABR处理低C/N市政污水的除碳脱氮及传氧效能, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

采用膜曝气生物膜反应器（MABR）工艺处理华南典型低浓度低碳氮比市政污水（COD、氨氮、总氮分别为258.1，30.5，36.8mg/L）．结果表明，通过同步缩短水力停留时间（HRT）和增大曝气压力，探明在HRT和优选曝气压力分别为24h和5kPa，12h和7kPa，8h和8kPa，6h和10kPa，4h和12kPa条件下，出水COD满足一级B标准，出水氨氮和总氮均满足一级A排放标准，COD、氨氮、总氮最高去除表面和容积负荷分别达到19.2，2.26，2.53g/（m²·d）和1.6，0.19，0.21g/（L·d），显著高于传统生物膜和活性污泥工艺．氧传质特性试验揭示，生物膜显著提高了中空纤维曝气膜的氧转移速率（19.5~40.6gO₂/（m²·d））、氧转移效率（30.9%~59.8%）和曝气效率（34.2~48.3kgO₂/kWh），体现出生物膜的自主呼吸特性（即根据进水氨氮和有机物的耗氧负荷自动通过曝气膜提取所需氧气）．MABR结合间歇曝气、同步混凝、定期剥离外层增殖过厚生物膜和根据污染物负荷优化调整膜组件曝气量及进出口气压，处理市政污水具有显著的减污降碳节能降耗潜力．

, authors=江兴^{1, 2}, 魏春海^{1, 3, *}, 袁喆¹, 翟心瑜¹, 潘志辉^{1, 3}, 刘涛^{1, 3}, 张立秋^{1, 3, **}, authorsList=江兴, 魏春海, 袁喆, 翟心瑜, 潘志辉, 刘涛, 张立秋, authorCompany=null, correspAuthors=魏春海, 张立秋, authorNote=, correspAuthorsNote=, copyrightStatement=null, copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=1QE9DKB4vQiBJ1UQ+12LAw==, magXml=iXlen7GUMY/qSmizrYeNog==, pdfUrl=null, pdf=y+k3DRSBo/G5h5xz9499Rg==, pdfFileSize=2045089, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=20fFNYO7k8cusJGXQ/20Tw==, mapNumber=null, fund=null)}, authors=[Author(id=1314917743263056456, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314917740264129083, orderNo=0, firstName=null, middleName=null, lastName=null, nameCn=null, orcid=null, stid=null, country=null, authorPic=null, dead=0, email=19727662519@163.com, emailSecond=null, emailThird=null, correspondingAuthor=0, authorType=1, ext={EN=AuthorExt(id=1314917743355331147, tenantId=1146029695717560320, journalId=1234093305789726721, articleId=1314917740264129083, authorId=1314917743263056456, language=EN, stringName=Xing JIANG, firstName=Xing, middleName=null, lastName=JIANG, prefix=null, suffix=null, authorComment=null, nameInitials=null, affiliation=null, department=null, xref=^{1, 2}, address=^1.School of Civil Engineering and Transportation, Guangzhou University, Guangzhou 510006, China
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江兴（1996-），男，湖北黄冈人，助理工程师，硕士，主要从事MABR污水处理研究．发表论文2篇．19727662519@163.com

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江兴（1996-），男，湖北黄冈人，助理工程师，硕士，主要从事MABR污水处理研究．发表论文2篇．19727662519@163.com

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