基于氨氮,硝氮及乙酸条件下Anammox菌的培养

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中国环境科学 ›› 2020, Vol. 40 ›› Issue (10) : 4348-4353.

水污染与控制

基于氨氮,硝氮及乙酸条件下Anammox菌的培养

吕恺^1,2, 王康舟^1,2, 姚雪薇^1,2, 赵文钊^1,2, 彭党聪¹, 李惠娟³, 韩芸¹

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Enrichment of Anammox under conditions of ammonium, nitrate and acetic acid as substrates

Lü^1,2, Kai^1,2, WANG Kang-zhou^1,2, YAO Xue-wei^1,2, ZHAO Wen-zhao¹, PENG Dang-cong³, LI Hui-juan¹

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摘要

为探讨Anammox菌在氨氮、硝氮及乙酸条件下的富集特性，采用某城市污水处理厂A²/O系统中的生物填料作为MBBR的载体直接启动并运行.结果表明，在NH₄⁺-N、NO₃^--N及乙酸为基质的培养条件下，Anammox菌可在部分反硝化和厌氧氨氧化协同作用下快速富集.经过130d的富集培养，MBBR处理负荷（以N计）达到920.79mg/（m²·d），Anammox活性（以NH₄⁺-N计）达到3 018.19mg/（m²·d）.高通量结果显示，经富集培养后，Ca.Brocadia占比从0.89%增至27.80%，为Anammox菌的主导菌属；Thauera占比从0.01%增至6.75%，Flavobacterium占比从0.29%增至11.72%，为部分反硝化菌的主导菌属.

Abstract

In order to investigate the characteristic of anammox enrichment process with ammonium, nitrate and acetic acid as substrates, an MBBR with mediums from A²/O system treating municipal wastewater was established to start up anammox process. The results showed that the enrichment of anammox bacteria, with ammonium, nitrate and acetic acid as substrates, combined with denitrification process could be obtained rapidly. TN removal load reached to 920.79mg/(m²·d), and Anammox activity could attain to 3018.19mg/(m²·d) after 130d enrichment. Quantitative PCR results showed that after enrichment, the proportion of Ca. Brocadia increased from 0.89% to 27.80%, which is the dominated community of anammox bacteria. The proportion of Thauera increased from 0.01% to 6.75%, and the proportion of Flavobacterium increased from 0.29% to 11.72%, which are the dominated communities of partial denitrifying bacteria.

导出引用

吕恺, 王康舟, 姚雪薇, 赵文钊, 彭党聪, 李惠娟, 韩芸. 基于氨氮,硝氮及乙酸条件下Anammox菌的培养[J]. 中国环境科学. 2020, 40(10): 4348-4353

Lü, Kai, WANG Kang-zhou, YAO Xue-wei, ZHAO Wen-zhao, PENG Dang-cong, LI Hui-juan, HAN Yun. Enrichment of Anammox under conditions of ammonium, nitrate and acetic acid as substrates[J]. China Environmental Science. 2020, 40(10): 4348-4353

中图分类号： X703.5

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