期刊
CHEMOSPHERE
卷 248, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.chemosphere.2020.125969
关键词
Endocrine disruptors; High rate algal ponds; Pharmaceuticals; Sewage; UASB reactors
资金
- Coordination for the Improvement of Higher Education Personnel - CAPES
- Foundation for Research of the State of Minas Gerais - FAPEMIG
- CNPQ
- National Health Foundation - FUNASA from Brazil
- Spanish Ministry of Economy and Competitiveness [IJCI-2017-34601]
- National Council for Scientific and Technological Development from Brazilian Ministry of Education - CNPq [204026/2018-0]
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. (C) 2020 Elsevier Ltd. All rights reserved.
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