Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139991
Title: Effect of tetracycline on microbial community structure associated with enhanced biological N&P removal in sequencing batch reactor
Authors: Liu, Hang
Yang, Yongkui
Sun, Huifang
Zhao, Lin
Liu, Yu
Keywords: Engineering::Civil engineering
Issue Date: 2018
Source: Liu, H., Yang, Y., Sun, H., Zhao, L., & Liu, Y. (2018). Effect of tetracycline on microbial community structure associated with enhanced biological N&P removal in sequencing batch reactor. Bioresource Technology, 256, 414-420. doi:10.1016/j.biortech.2018.02.051
Journal: Bioresource Technology
Abstract: The presence of antibiotics in wastewater has raised serious concerns about its potential impacts on biological nitrogen and phosphorus (N&P) removal. This study investigated the long-term process performance and microbial structures in response to tetracycline in the enhanced N&P removal process. Results showed that trace tetracycline (20 and 50 μg/L) had no obvious effect on the N&P removal, while the relative abundances of Nitrospira and poly-phosphate accumulating organisms (PAOs) were found to increase. Moreover, the decreased abundance of ammonia oxidizing bacteria (AOB) was observed. When the tetracycline concentrations were further increased to 2 and 5 mg/L, initially the N&P removal was seriously inhibited, but gradually recovered with the restored abundances of Nitrospira and PAOs. However, AOB, Nitrobacter and denitrifiers were found to be more vulnerable to high-concentration tetracycline with slow activity recovery. Consequently, this study offered useful information about long-term microbial responses to tetracycline in enhanced biological nutrient removal process.
URI: https://hdl.handle.net/10356/139991
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2018.02.051
Rights: © 2018 Elsevier Ltd. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:NEWRI Journal Articles

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