The performance of an anaerobic ammonium oxidation upflow anaerobic sludge blanket reactor during natural periodic temperature variations

Ming-Cong Li; Ying Song; Wei Shen; Cong Wang; Wei-Kang Qi; Yongzhen Peng; Yu-You Li

doi:10.1016/j.biortech.2019.122039

The performance of an anaerobic ammonium oxidation upflow anaerobic sludge blanket reactor during natural periodic temperature variations

Bioresour Technol. 2019 Dec:293:122039. doi: 10.1016/j.biortech.2019.122039. Epub 2019 Aug 21.

Authors

Ming-Cong Li¹, Ying Song², Wei Shen³, Cong Wang⁴, Wei-Kang Qi⁵, Yongzhen Peng⁶, Yu-You Li²

Affiliations

¹ National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China; School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China.
² Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, 6-6-06 Aza-Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan.
³ China Waterborne Transport Research Institute, Beijing 100088, China.
⁴ Beijing Drainage Technology Co. Ltd., Beijing 100022, China.
⁵ National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China; School of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029, China. Electronic address: qiweikang10@163.com.
⁶ National Engineering Laboratory for Advanced Municipal Wastewater Treatment and Reuse Technology, Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Beijing University of Technology, Beijing 100124, China.

PMID: 31476562
DOI: 10.1016/j.biortech.2019.122039

Abstract

An anaerobic ammonium oxidation-upflow anaerobic sludge blanket (anammox-UASB) reactor was operated without temperature control during the four seasons and was therefore subjected to natural periodic temperature variations between 9 and 28 ℃. The anammox reactor had a high nitrogen removal ability at intermediate and low temperatures. The total nitrogen (TN) concentration of the influent increased from 200 to 1200 mg/L, the nitrogen removal efficiency was maintained at 90%, and the nitrogen removal rate (NRR) increased to 9.15 ± 0.35 kg N/m³/d. The enrichment of anammox bacteria in the UASB granular sludge reached 53.8%, and the dominant bacteria changed from Candidatus Brocadia to Candidatus Kuenenia after several seasons of cultivation. Dynamics analysis revealed that the maximum reaction rate of the anammox-UASB sludge was 62.5 kg N/m³/d, reflecting the high potential nitrogen removal ability of the reactor.

Keywords: Anammox; Microbial evolution; Periodic temperature change; UASB.

MeSH terms

Ammonium Compounds*
Anaerobiosis
Bioreactors
Nitrogen
Oxidation-Reduction
Sewage*
Temperature

Substances

Ammonium Compounds
Sewage
Nitrogen