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Can high rate algal ponds be used as post-treatment of UASB reactors to remove micropollutants?

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10.1016/j.chemosphere.2020.125969
 
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Castro, Lucas Vassalle de
García Galán, María JesúsMés informació
de Aquino, Sérgio Francisco
Franco Afonso, Robson José de Cássia
Ferrer Martí, IvetMés informacióMés informacióMés informació
Passos, Fabiana Lopes del ReiMés informacióMés informació
Mota, Cesar R.
Document typeArticle
Defense date2020-06
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 4.0 International
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 4.0 International
Abstract
The present study evaluated the removal capacity of a UASB-HRAP treatment system, combining anaerobic and microalgae-based, aerobic treatment, for eleven organic micropollutants present in raw sewage, including pharmaceuticals, estrogens and xenoestrogens. The UASB reactor and the HRAP were operated at a hydraulic retention time (HRT) of 7 h and 8 days, respectively. Influent and effluent samples from the UASB and HRAP were collected periodically. All the target compounds were detected in raw sewage, with an occurrence ranging from 70 to 100%. Removal rates in the UASB reactor were generally incomplete, ranging from no removal (-25.12% for the hormone EE2-ethinylestradiol) to 84.91% (E2 - estradiol). However, the overall performance of the UASB + HRAP system was highly efficient for the majority of the compounds, with removal rates ranging from 64.8% (ibuprofen) to 95% (estrone). Gemfibrozil and bisphenol A were the only exceptions, with overall removal rates of 39% and 43%, respectively. Hormones were the compounds with the highest removal rates in the system.
CitationVassalle, L. [et al.]. Can high rate algal ponds be used as post-treatment of UASB reactors to remove micropollutants?. "Chemosphere", Juny 2020, vol. 248, p. 125969:1-125969:9. 
URIhttp://hdl.handle.net/2117/181242
DOI10.1016/j.chemosphere.2020.125969
ISSN0045-6535
Publisher versionhttps://www.sciencedirect.com/science/article/pii/S0045653520301612
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  • Doctorat en Enginyeria Ambiental - Articles de revista [98]
  • Departament d'Enginyeria Civil i Ambiental - Articles de revista [2.657]
  • GEMMA - Grup d'Enginyeria i Microbiologia del Medi Ambient - Articles de revista [182]
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