The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Removal of Antibiotics in Wastewater: Effect of Hydraulic and Solid Retention Times on the Fate of Tetracycline in the Activated Sludge Process
Abstract
A study was conducted to examine the influence of hydraulic retention time (HRT) and solid retention time (SRT) on the removal of tetracycline in the activated sludge processes. Two lab-scale sequencing batch reactors (SBRs) were operated to simulate the activated sludge process. One SBR was spiked with 250 microg/L tetracycline, while the other SBR was evaluated at tetracycline concentrations found in the influent of the wastewater treatment plant (WWTP) where the activated sludge was obtained. The concentrations of tetracyclines in the influent of the WWTP ranged from 0.1 to 0.6 microg/L. Three different operating conditions were applied during the study (phase 1-HRT: 24 h and SRT: 10 days; phase 2-HRT: 7.4 h and SRT: 10 days; and phase 3-HRT: 7.4 h and SRT: 3 days). The removal efficiency of tetracycline in phase 3 (78.4 +/- 7.1%) was significantly lower than that observed in phase 1 (86.4 +/- 8.7%) and phase 2 (85.1 +/- 5.4%) at the 95% confidence level. The reduction of SRT in phase 3 while maintaining a constant HRT decreased tetracycline removal efficiency. Sorption kinetics reached equilibrium within 24 h. Batch equilibrium experiments yielded an adsorption coefficient (Kads) of 8400 +/- 500 mL/g and a desorption coefficient (Kdes) of 22 600 +/- 2200 mL/g. No evidence of biodegradation for tetracycline was observed during the biodegradability test, and sorption was found to be the principal removal mechanism of tetracycline in activated sludge.
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Cites
Kolpin, D. W., Furlong, E. T., Meyer, M. T., Thurman, E. M., Zaugg, S. D., Barber, L. B., & Buxton, H. T. (2002) · Environmental Science & Technology · doi:10.1021/es011055j · Cited by 7,953
Occurrence of Antibiotics in the Aquatic Environment
Hirsch, R., Ternes, T., Haberer, K., & Kratz, K.-L. (1999) · Science of The Total Environment · doi:10.1016/s0048-9697(98)00337-4 · Cited by 2,140
KOLPIN, D., SKOPEC, M., MEYER, M., FURLONG, E., & ZAUGG, S. (2004) · Science of The Total Environment · doi:10.1016/j.scitotenv.2004.01.015 · Cited by 579
Cited by
Antibiotics in the aquatic environment – A review – Part I
Kümmerer, K. (2009) · Chemosphere · doi:10.1016/j.chemosphere.2008.11.086 · Cited by 4,475
Patel, M., Kumar, R., Kishor, K., Mlsna, T., Pittman, C. U., & Mohan, D. (2019) · Chemical Reviews · doi:10.1021/acs.chemrev.8b00299 · Cited by 2,654
Tetracycline antibiotics in the environment: a review
Daghrir, R., & Drogui, P. (2013) · Environmental Chemistry Letters · doi:10.1007/s10311-013-0404-8 · Cited by 1,595
Adsorptive removal of antibiotics from water and wastewater: Progress and challenges
Ahmed, M. B., Zhou, J. L., Ngo, H. H., & Guo, W. (2015) · Science of The Total Environment · doi:10.1016/j.scitotenv.2015.05.130 · Cited by 1,207
Biodegradation and Adsorption of Antibiotics in the Activated Sludge Process
Li, B., & Zhang, T. (2010) · Environmental Science & Technology · doi:10.1021/es903490h · Cited by 953
Metadata
- Authors
- Kim, S., Eichhorn, P., Jensen, J. N., Weber, A. S., & Aga, D. S.
- Venue
- Environmental Science & Technology
- Publisher
- American Chemical Society (ACS)
- Published
- 2005-06-21
- Volume
- 39
- Issue
- 15
- Pages
- 5816-5823
- ISSN
- 0013-936X (ISSN-L)
- 1520-5851
- OpenAlex
- W2009276105
- Cited by
- 510
- References
- 3
- FWCI
- 12.28
- Type
- journal article
- Language
- en
- Open access
- closed
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
