Fate of beta blockers and psycho-active drugs in conventional wastewater treatment

Wick, Arne N.; Fink, Guido; Joss, Adriano; Siegrist, Hansruedi; Ternes, Thomas A.

doi:10.1016/j.watres.2008.11.031

Cited by 237 publications

(121 citation statements)

References 30 publications

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“…Biomass is usually approximated by the amount of total (or volatile) suspended solids (TSS) which can be easily determined by routine measurements. Recent studies proposed pseudo first-order reaction kinetics to describe PhAC removal (Maurer et al, 2007;Wick et al, 2009). This reaction is governed by the amount of biomass and the biodegradation rate constant k biol .…”

Section: Introductionmentioning

confidence: 99%

Active heterotrophic biomass and sludge retention time (SRT) as determining factors for biodegradation kinetics of pharmaceuticals in activated sludge

Majewsky

Gallé

Yargeau

et al. 2011

Bioresource Technology

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a b s t r a c tThe present study investigates the biodegradation of pharmaceutically active compounds (PhACs) by active biomass in activated sludge. Active heterotrophs (X bh ) which are known to govern COD removal are suggested as a determining factor for biological PhAC removal as well. Biodegradation kinetics of five polar PhACs were determined in activated sludge of two wastewater treatment plants which differed in size, layout and sludge retention time (SRT).Results showed that active fractions of the total suspended solids (TSS) differed significantly between the two sludges, indicating that TSS does not reveal information about heterotrophic activity. Furthermore, PhAC removal was significantly faster in the presence of high numbers of heterotrophs and a low SRT. Pseudo first-order kinetics were modified to include X bh and used to describe decreasing PhAC elimination with increasing SRT.

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Section: Introductionmentioning

confidence: 99%

Active heterotrophic biomass and sludge retention time (SRT) as determining factors for biodegradation kinetics of pharmaceuticals in activated sludge

Majewsky

Gallé

Yargeau

et al. 2011

Bioresource Technology

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“…A limited number of previous studies have taken a 70 mass balance approach to determine removals of CECs in conventional primary and secondary 71 treatment steps through the processes of adsorption and (bio)degradation that were the major removal 72 mechanisms for the CECs investigated (Carballa et al, 2007;Gao et al, 2012;Heidler & Halden, 73 2008;Jelic et al, 2011;Petrie et al, 2014;Wick et al, 2009;Winkler et al, 2007). The majority of 74 these studies were based on analysis of CECs in grab or 24-h composite wastewater samples 75 collected simultaneously from different treatment stages, while a small number of studies accounted 76 for the hydraulic retention time in the sampling campaign but did not consider the wastewater 77 residence time distribution.…”

mentioning

confidence: 99%

Fate and mass balance of contaminants of emerging concern during wastewater treatment determined using the fractionated approach

Baalbaki

Sultana

Maere

et al. 2016

Science of The Total Environment

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Contaminants of emerging concern (CECs) are often poorly removed from wastewater using conventional treatment technologies and there is limited understanding of their fate during treatment. Inappropriate sampling strategies lead to inaccuracies in estimating removals of CECs. In this study, we used the “fractionated approach” that accounts for the residence time distribution (RTD) in treatment units to investigate the fate of 26 target CECs in a municipal wastewater treatment plant (WWTP) that includes primary, secondary and tertiary treatment steps[...] Analysis of the selected metabolites demonstrated that negative removals obtained could be explained by transformations between the parent compound and their metabolites. This study contributes to the growing literature by applying the fractionated approach to calculate removal of different types of CECs across each wastewater treatment step. An additional level of understanding of the fate of CECs was provided by mass balance calculations in primary and secondary treatments

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“…Stevens-Garmon et al (2011) A biotransformação é, muitas vezes, o processo de remoção dominante para alguns POE (CLARA et al, 2005;URASE & KIKUTA, 2005;JOSS et al, 2006;WICK et al, 2009). No entanto, uma determinação exata das taxas de biodegradação é difícil, devido à geração de um grande número de produtos de degradação (TERNES et al, 2004).…”

Section: Remoção De Poluentes Orgânicos Emergentes Em Estações De Traunclassified

Sorção de poluentes orgânicos emergentes em lodo de esgoto

Bittencourt

Aisse

Serrat

et al. 2016

Eng. Sanit. Ambient.

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Fate of beta blockers and psycho-active drugs in conventional wastewater treatment

Cited by 237 publications

References 30 publications

Active heterotrophic biomass and sludge retention time (SRT) as determining factors for biodegradation kinetics of pharmaceuticals in activated sludge

Active heterotrophic biomass and sludge retention time (SRT) as determining factors for biodegradation kinetics of pharmaceuticals in activated sludge

Fate and mass balance of contaminants of emerging concern during wastewater treatment determined using the fractionated approach

Sorção de poluentes orgânicos emergentes em lodo de esgoto

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