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The effect of scrap iron on the nitrogen removal performance of theanaerobic ammonium oxidation (ANAMMOX) system under different salinity influents was investigated using anUpflow Anaerobic Sludge Blanket (UASB) reactor. The results showed that scrap iron had a positive effect on enhancing the nitrogen removal efficiency of the ANAMMOX process. Under salinity conditions ranging from 2.75% to 3%, the nitrogen removal rate (NRR) increased from 0.39±0.12kg/(m3·d) to 2.88±0.09kg/(m3·d). However, when the salinity reached 3.5%, the system collapsed. With the addition of scrap iron, the specific anammox activity (SAA) first increased and then decreased at 3.5% salinity. Extracellular Polymeric Substances (EPS) analysis indicated that the addition of scrap iron contributed to a decrease in theProtein/polysaccharide(PN/PS)ratio, promoting the formation of dense granular sludge. Microbial community analysis revealed that high salinity reduced the abundance of AnAOB(CandidatusKuenenia) in the reactor. Notably, a potentially novel AnAOB (Brocadiaceaeunclassified), consistently dominated the community (accounting for 54.1%), suggesting that this strain may play a key role in maintaining nitrogen removal performance under high-salinity conditions. The results of this paper could provide theoretical support for the treatment of high-salt wastewater by the ANAMMOX process.

, authors=Hao-zhe XU1, Man-yu QIN1, Zeng-yi LI1, Xing-yu ZHANG1, Wen-ru LIU1, 2, *, authorsList=Hao-zhe XU, Man-yu QIN, Zeng-yi LI, Xing-yu ZHANG, Wen-ru LIU, authorCompany=null, correspAuthors=Wen-ru LIU, 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=1314918413982597516, articleId=1314918413542195594, tenantId=1146029695717560320, journalId=1234093305789726721, language=CN, title=废铁屑强化高盐条件下厌氧氨氧化系统脱氮研究, columnId=1234106386565624579, journalTitle=中国环境科学, columnName=水污染与控制, runingTitle=null, highlight=null, articleAbstract=

通过上流式厌氧污泥床(UASB)反应器研究在不同盐度进水中废铁屑对厌氧氨氧化(ANAMMOX)系统脱氮效能的影响.结果表明,废铁屑对提升ANAMMOX脱氮效能有一定的促进作用.在2.75%~3%盐度下,氮去除负荷(NRR)从(0.39±0.12)kg/(m3·d)上升到(2.88±0.09)kg/(m3·d),而在盐度达到3.5%时系统崩溃.比厌氧氨氧化活性(SAA)出现了先上升,在3.5%盐度时下降的趋势.通过分析胞外聚合物(EPS)发现,废铁屑的投加有助于蛋白质/多糖(PN/PS)的下降,促进形成紧密的颗粒污泥.微生物分析显示,高盐度降低了反应器中ANAMMOX菌(AnAOB)(CandidatusKuenenia)的丰度.值得注意的是,一种潜在的新型ANAMMOX细菌(Brocadiaceaeunclassified)始终占据主导地位(占比54.1%),表明该菌可能在高盐条件下维持氮去除性能中起到了关键作用.本文研究结果可为ANAMMOX工艺处理高盐废水提供理论支撑.

, authors=徐浩哲1, 秦曼瑜1, 厉曾一1, 张钘昱1, 刘文如1, 2, *, authorsList=徐浩哲, 秦曼瑜, 厉曾一, 张钘昱, 刘文如, authorCompany=null, correspAuthors=刘文如, authorNote=

徐浩哲(2000-),男,江苏常州人,苏州科技大学硕士研究生,研究方向为废水处理及资源化利用.发表论文1篇..

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徐浩哲(2000-),男,江苏常州人,苏州科技大学硕士研究生,研究方向为废水处理及资源化利用.发表论文1篇..

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徐浩哲(2000-),男,江苏常州人,苏州科技大学硕士研究生,研究方向为废水处理及资源化利用.发表论文1篇..

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废铁屑强化高盐条件下厌氧氨氧化系统脱氮研究
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徐浩哲 1 , 秦曼瑜 1 , 厉曾一 1 , 张钘昱 1 , 刘文如 1, 2, *
中国环境科学 | 水污染与控制 2025,45(11): 6112-6119
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中国环境科学 |水污染与控制 2025 , 45 (11) : 6112 -6119
废铁屑强化高盐条件下厌氧氨氧化系统脱氮研究
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徐浩哲(2000-),男,江苏常州人,苏州科技大学硕士研究生,研究方向为废水处理及资源化利用.发表论文1篇..

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徐浩哲(2000-),男,江苏常州人,苏州科技大学硕士研究生,研究方向为废水处理及资源化利用.发表论文1篇..

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徐浩哲1 , 秦曼瑜1, 厉曾一1, 张钘昱1, 刘文如1, 2, *
作者信息
  • 1.苏州科技大学环境科学与工程学院,江苏 苏州 215009
  • 2.苏州科技大学,市政污水资源化利用技术国家地方联合工程实验室,江苏 苏州 215009
通讯作者:
* 责任作者,副教授,
作者简介:

徐浩哲(2000-),男,江苏常州人,苏州科技大学硕士研究生,研究方向为废水处理及资源化利用.发表论文1篇..

Nitrogen removal in ANAMMOX system enhanced by waste iron scrap under high salinity conditions
Hao-zhe XU1 , Man-yu QIN1, Zeng-yi LI1, Xing-yu ZHANG1, Wen-ru LIU1, 2, *
Affiliations
  • 1.School of Environmental Science and Engineering,Suzhou University of Science and Technology, Suzhou 215009, China
  • 2.National & Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization Technology, Suzhou University of Science and Technology, Suzhou 215009, China
出版时间: 2025-11-20
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通过上流式厌氧污泥床(UASB)反应器研究在不同盐度进水中废铁屑对厌氧氨氧化(ANAMMOX)系统脱氮效能的影响.结果表明,废铁屑对提升ANAMMOX脱氮效能有一定的促进作用.在2.75%~3%盐度下,氮去除负荷(NRR)从(0.39±0.12)kg/(m3·d)上升到(2.88±0.09)kg/(m3·d),而在盐度达到3.5%时系统崩溃.比厌氧氨氧化活性(SAA)出现了先上升,在3.5%盐度时下降的趋势.通过分析胞外聚合物(EPS)发现,废铁屑的投加有助于蛋白质/多糖(PN/PS)的下降,促进形成紧密的颗粒污泥.微生物分析显示,高盐度降低了反应器中ANAMMOX菌(AnAOB)(CandidatusKuenenia)的丰度.值得注意的是,一种潜在的新型ANAMMOX细菌(Brocadiaceaeunclassified)始终占据主导地位(占比54.1%),表明该菌可能在高盐条件下维持氮去除性能中起到了关键作用.本文研究结果可为ANAMMOX工艺处理高盐废水提供理论支撑.

厌氧氨氧化  /  盐度  /  脱氮效能  /  废铁屑

The effect of scrap iron on the nitrogen removal performance of theanaerobic ammonium oxidation (ANAMMOX) system under different salinity influents was investigated using anUpflow Anaerobic Sludge Blanket (UASB) reactor. The results showed that scrap iron had a positive effect on enhancing the nitrogen removal efficiency of the ANAMMOX process. Under salinity conditions ranging from 2.75% to 3%, the nitrogen removal rate (NRR) increased from 0.39±0.12kg/(m3·d) to 2.88±0.09kg/(m3·d). However, when the salinity reached 3.5%, the system collapsed. With the addition of scrap iron, the specific anammox activity (SAA) first increased and then decreased at 3.5% salinity. Extracellular Polymeric Substances (EPS) analysis indicated that the addition of scrap iron contributed to a decrease in theProtein/polysaccharide(PN/PS)ratio, promoting the formation of dense granular sludge. Microbial community analysis revealed that high salinity reduced the abundance of AnAOB(CandidatusKuenenia) in the reactor. Notably, a potentially novel AnAOB (Brocadiaceaeunclassified), consistently dominated the community (accounting for 54.1%), suggesting that this strain may play a key role in maintaining nitrogen removal performance under high-salinity conditions. The results of this paper could provide theoretical support for the treatment of high-salt wastewater by the ANAMMOX process.

anammox  /  salinity  /  nitrogen removal  /  scrap iron
徐浩哲, 秦曼瑜, 厉曾一, 张钘昱, 刘文如. 废铁屑强化高盐条件下厌氧氨氧化系统脱氮研究. 中国环境科学, 2025 , 45 (11) : 6112 -6119 .
Hao-zhe XU, Man-yu QIN, Zeng-yi LI, Xing-yu ZHANG, Wen-ru LIU. Nitrogen removal in ANAMMOX system enhanced by waste iron scrap under high salinity conditions[J]. China Environmental Science, 2025 , 45 (11) : 6112 -6119 .
  • 国家自然科学基金资助项目(52470090)
  • 江苏省研究生科研实践创新计划项目(KYCX22_3304)
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  • 接收时间:2025-04-16
  • 首发时间:2026-10-08
  • 出版时间:2025-11-20
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  • 收稿日期:2025-04-16
基金
国家自然科学基金资助项目(52470090)
江苏省研究生科研实践创新计划项目(KYCX22_3304)
作者信息
    1.苏州科技大学环境科学与工程学院,江苏 苏州 215009
    2.苏州科技大学,市政污水资源化利用技术国家地方联合工程实验室,江苏 苏州 215009

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2种不同金属材料的力学参数
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属数
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genus
种数
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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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