Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system

The effects of different concentrations of organic matter on the biological activity and nitrogen removal performance of the anaerobic ammonium oxidation (anammox) system was studied. The results showed that under the conditions of low influent total organic carbon (TOC ≤ 100 mg/L), the activity rat...

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Auteurs principaux:	Weide Fu, Rencheng Zhu, Huanyun Lin, Yukai Zheng, Zhanbo Hu
Format:	article
Langue:	EN
Publié:	IWA Publishing 2021
Sujets:	anammox system biological activity microbial community moving bed biofilm reactor nitrogen removal organic concentration Environmental technology. Sanitary engineering TD1-1066
Accès en ligne:	https://doaj.org/article/2d281b65e5f749b7a626cefdb80f9a66
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spelling	oai:doaj.org-article:2d281b65e5f749b7a626cefdb80f9a662021-11-06T11:16:44ZEffect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system0273-12231996-973210.2166/wst.2021.258https://doaj.org/article/2d281b65e5f749b7a626cefdb80f9a662021-08-01T00:00:00Zhttp://wst.iwaponline.com/content/84/3/725https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The effects of different concentrations of organic matter on the biological activity and nitrogen removal performance of the anaerobic ammonium oxidation (anammox) system was studied. The results showed that under the conditions of low influent total organic carbon (TOC ≤ 100 mg/L), the activity rate of anammox bacteria was basically unaffected, the anammox bacteria and denitrifying bacteria formed a good synergistic effect, and the maximum total nitrogen (TN) removal efficiency reached 95.77%. However, when the influent TOC concentration was up to 200 mg/L, the activity of anammox bacteria was seriously inhibited. At this time, denitrification becomes the main pathway of nitrogen removal, the effluent ammonia nitrogen content increases, and the TN removal efficiency decreases to 64.17%. High-throughput sequencing analysis showed that with the increase in organic matter concentration, the relative abundance of Proteobacteria and Planctomycetes changed significantly. In particular, the relative abundance proportion of Proteobacteria increased from 21.06% to 25.57%, the Planctomycetes dropped from 10.01% to 3.03% and the Candidatus Brocadia genus had the largest decrease. In conclusion, the concentration range of organic matter for collaborative denitrification was proposed in this study, which provided theoretical reference for the practical application of anammox biofilm process. HIGHLIGHTS A continuous flow anammox/denitrification moving bed biofilm reactor (MBBR) was operated.; The optimum denitrification performance of the reactor was achieved at the influent organic matter concentration of 100 mg/L.; The denitrification form of biofilm changed with the increase in organic matter.; Predominant genus changed with the increase in organic matter concentration.;Weide FuRencheng ZhuHuanyun LinYukai ZhengZhanbo HuIWA Publishingarticleanammox systembiological activitymicrobial communitymoving bed biofilm reactornitrogen removalorganic concentrationEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 3, Pp 725-736 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	anammox system biological activity microbial community moving bed biofilm reactor nitrogen removal organic concentration Environmental technology. Sanitary engineering TD1-1066
spellingShingle	anammox system biological activity microbial community moving bed biofilm reactor nitrogen removal organic concentration Environmental technology. Sanitary engineering TD1-1066 Weide Fu Rencheng Zhu Huanyun Lin Yukai Zheng Zhanbo Hu Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
description	The effects of different concentrations of organic matter on the biological activity and nitrogen removal performance of the anaerobic ammonium oxidation (anammox) system was studied. The results showed that under the conditions of low influent total organic carbon (TOC ≤ 100 mg/L), the activity rate of anammox bacteria was basically unaffected, the anammox bacteria and denitrifying bacteria formed a good synergistic effect, and the maximum total nitrogen (TN) removal efficiency reached 95.77%. However, when the influent TOC concentration was up to 200 mg/L, the activity of anammox bacteria was seriously inhibited. At this time, denitrification becomes the main pathway of nitrogen removal, the effluent ammonia nitrogen content increases, and the TN removal efficiency decreases to 64.17%. High-throughput sequencing analysis showed that with the increase in organic matter concentration, the relative abundance of Proteobacteria and Planctomycetes changed significantly. In particular, the relative abundance proportion of Proteobacteria increased from 21.06% to 25.57%, the Planctomycetes dropped from 10.01% to 3.03% and the Candidatus Brocadia genus had the largest decrease. In conclusion, the concentration range of organic matter for collaborative denitrification was proposed in this study, which provided theoretical reference for the practical application of anammox biofilm process. HIGHLIGHTS A continuous flow anammox/denitrification moving bed biofilm reactor (MBBR) was operated.; The optimum denitrification performance of the reactor was achieved at the influent organic matter concentration of 100 mg/L.; The denitrification form of biofilm changed with the increase in organic matter.; Predominant genus changed with the increase in organic matter concentration.;
format	article
author	Weide Fu Rencheng Zhu Huanyun Lin Yukai Zheng Zhanbo Hu
author_facet	Weide Fu Rencheng Zhu Huanyun Lin Yukai Zheng Zhanbo Hu
author_sort	Weide Fu
title	Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
title_short	Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
title_full	Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
title_fullStr	Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
title_full_unstemmed	Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
title_sort	effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/2d281b65e5f749b7a626cefdb80f9a66
work_keys_str_mv	AT weidefu effectoforganicconcentrationonbiologicalactivityandnitrogenremovalperformanceinananammoxbiofilmsystem AT renchengzhu effectoforganicconcentrationonbiologicalactivityandnitrogenremovalperformanceinananammoxbiofilmsystem AT huanyunlin effectoforganicconcentrationonbiologicalactivityandnitrogenremovalperformanceinananammoxbiofilmsystem AT yukaizheng effectoforganicconcentrationonbiologicalactivityandnitrogenremovalperformanceinananammoxbiofilmsystem AT zhanbohu effectoforganicconcentrationonbiologicalactivityandnitrogenremovalperformanceinananammoxbiofilmsystem
_version_	1718443721842753536

Effect of organic concentration on biological activity and nitrogen removal performance in an anammox biofilm system

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