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Wastewater Treatment – Processes, Management Strategies and Environmental/Health Impacts
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SYSNO ASEP 0455629 Document Type M - Monograph Chapter R&D Document Type Monograph Chapter Title Assessment of the Presence of Triclosan in Wastewater Treatment Plants in the Czech Republic and Alternative Fungal Treatment Author(s) Křesinová, Zdena (MBU-M) RID
Žebrák, R. (CZ)
Langová, J. (CZ)
Cajthaml, Tomáš (MBU-M) RID, ORCID
Barret, L. M. (ed. US)Source Title Wastewater Treatment – Processes, Management Strategies and Environmental/Health Impacts , 3. - New York : Nova Science Publishers, Inc, 2015 - ISBN 978-1-63482-467-5 Pages s. 69-80 Number of pages 12 s. Number of copy 1500 Number of pages 239 Publication form Print - P Language eng - English Country US - United States Keywords triclosan ; wastewater treatment plants ; monitoring Subject RIV EE - Microbiology, Virology R&D Projects TE01020218 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) GA15-02328S GA ČR - Czech Science Foundation (CSF) Institutional support MBU-M - RVO:61388971 Annotation Wastewater treatment plants (WWTPs) are considered to be a major source of various organopollutants in the aquatic environments as a consequence of insufficient treatment processes. This study was performed to investigate the occurrence of triclosan (TCS), an antimicrobial personal care product, in inlets and outlets of several WWTPs in order to provide information about the presence of the compound in the Czech Republic. Samples were collected at nine WWTPs located in Bohemia, downstream from variously populated cities in the summer/autumn of 2011 and spring of 2012. At two WWTPs, TCS concentrations were found to be under the limit of detection of the method at both inlets and outlets. At the other WWTPs, the concentrations of TCS at the inlets ranged from 0 to 1830 ng·l-1 (median 597 ng·l-1, mean 528 ng·l-1). At the outlets, the concentrations varied from 59 to 1051 ng·l-1 (median 205 ng·l-1, mean 335 ng·l-1). The removal of TCS from wastewater is a process consisting of several mechanisms, such as adsorption and microbial and as well as abiotic degradation. Part of TCS is usually converted into methyl-triclosan (Me-TCS) by microbes in activated sludge under aerobic conditions and this metabolite is very often used as a pollution marker. In this study, no Me-TCS was detected at the outlets, suggesting that the major removal mechanism was adsorption or some other unknown mechanisms. Fluctuation in TCS concentrations over 24 hours were monitored at both the inlet and the outlet of one selected WWTP. Workplace Institute of Microbiology Contact Eliška Spurná, eliska.spurna@biomed.cas.cz, Tel.: 241 062 231 Year of Publishing 2016
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