WEI Yan,MA Bin,XU Xin-xin,et al.Advanced Nitrogen Removal Performance and Microbial Community Composition of Anammox Biofilter[J].China Water & Wastewater,2021,37(9 9):15-20.
Click Copy

Advanced Nitrogen Removal Performance and Microbial Community Composition of Anammox Biofilter

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第37卷 Number: 9 9 Page: 15-20 Column: Date of publication: 2021-05-01
Author(s):
WEI Yan1; MA Bin2; XU Xin-xin3; PENG Yi4
(1. State Key Laboratory of Marine Resource Utilization in South China Sea, Hainan University, Haikou 570228, China; 2. Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation of Hainan Province, Hainan University, Haikou 570228, China; 3. National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Beijing University of Technology, Beijing 100124, China; 4. SDIC Xinkai Water Environment Investment Co. Ltd., Beijing 101101, China)
Keywords:
Anammox; partial denitrification; biofilter; advanced nitrogen removal; organic carbon source
Abstract:
In order to reduce organic carbon source consumption in advanced denitrification processes, a partial denitrification and anaerobic ammonium oxidation (Anammox) double biofilter system was proposed, and the nitrogen removal performance and microbial community composition of the Anammox biofilter were investigated. When the average concentrations of NH4+-N and NO2--N in influent of the Anammox biofilter were 9.9 mg/L and 9.1 mg/L,the concentrations of NH4+-N and TN in the effluent were 2.5 mg/L and 9.5 mg/L, respectively, which met the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant (GB 18918-2002). HRT of the biofilter was 15 min, and the volumetric nitrogen removal rate was 1.0 kg/(m3·d). The Anammox bacteria in the biofilter belonged to Candidatus Kuenenia and Candidatus Brocadia with relative abundances of 4.33% and 2.70%, respectively. Compared with traditional denitrification biofilter, the partial denitrification and Anammox double biofilter system could save 62% of organic carbon source and reduce sludge production and backwash time.
Last Update: 2021-05-01