Enrichment of Anammox under conditions of ammonium, nitrate and acetic acid as substrates
Lü1,2, Kai1,2, WANG Kang-zhou1,2, YAO Xue-wei1,2, ZHAO Wen-zhao1, PENG Dang-cong3, LI Hui-juan1
1. School of Municipal and Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China; 2. Key Laboratory of Northwest Water Resource, Environment and Ecology, Ministry of Education, Xi'an 710055, China; 3. School of Environmental and Chemical Engineering, Xi'an Polytechnic University, Xi'an 710048, China
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.
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. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(10): 4348-4353.
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