Endocrine Disrupting Activity Changes in Water Reclamation Systems

Drewes, Jörg E.; Hemming, Jocelyn D.C.; Ladenburger, Sarah J.; Schauer, Jamie; Sonzogni, William C.

doi:10.2175/193864705783865172

Cited by 4 publications

(4 citation statements)

References 12 publications

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“…Removal Percentages with Activated Sludge at a SRT Less Than Five Days (Fig.2: triangles represent average value with bars representing maximum and minimum range)Activated Sludge at a SRT Greater Than Five DaysOf the information reviewed at the time of work, the majority of the work focused on activated sludge systems with greater than five days SRT, including work bySynder et al (2005),Kirk et al (2002),Esperanza et al (2004),Drewes et al (2005),Phillips et al (2005), and WERF…”

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confidence: 99%

Microconstituents – What is a Typical Municipal Wastewater Treatment Plant Designer to Do?

Tabor¹

2009

proc water environ fed

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Microconstituents, emerging containments, endocrine disrupting chemicals, pharmaceuticals and personal care products (PPCPs), and other natural and manmade substances pose a new challenge to traditional municipal wastewater treatment plant designers. These various contaminants and compounds are receiving increasing attention as trace concentrations are being detected in waters worldwide. As federal and state agencies begin to consider regulatory options, municipal wastewater treatment facilities and facility designers need to develop options as typical facilities are designed for 20-30 year build-out conditions.According to the U.S. Environmental Protection Agency (EPA) published documents, "Sewage systems are not equipped for PPCP removal. Currently, there are no municipal sewage treatment plants that are engineered specifically for PPCP removal or for other unregulated contaminants. Effective removal of PPCPs from treatment plants varies based on the type of chemical and on the individual sewage treatment facilities. The risks are uncertain and the numbers of PPCPs are growing."Ongoing research suggests that existing facilities are capable of treating some microconstituents, forcing treatment plant designers looking to upgrade or expand a facility to evaluate what mechanism or technology is most effective to treat these compounds. Cost implications and reliability of treatment are inherent to this discussion. With unknown risks and the number of detected microconstituents growing, a pragmatic design approach is required.With this perspective in mind, a preliminary literature investigation was conducted with the objective of determining what is being removed in current treatment processes, the percent removal, and the technology performing the removal. The goal was to develop an approach to estimating the extent of PPCP removal to be expected based on treatment technology applied. The investigation focused on data and information available through industry organizations and research foundations. The data and information from the various sources were consolidated into a table that focused on 32 compounds and attempted to determine the mechanism/technology within the treatment train responsible for removal. The review of the data and information produced some interesting results. It was noted that there is limited work on conventional technologies. Furthermore, because a large percentage of the work to date has focused on removals across the entire treatment train, there is limited information on the performance of individual technologies. . Based on information available, the table was broken into the following technology focus areas:• Primary clarification • Activated sludge at a solids retention time (SRT) less than five days • Activated sludge at a SRT greater than five days • Membrane bioreactor

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confidence: 99%

Microconstituents – What is a Typical Municipal Wastewater Treatment Plant Designer to Do?

Tabor¹

2009

proc water environ fed

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“…Los efluentes de las Plantas de Tratamientos de Aguas Residuales (PTARs) son una de las mayores rutas de descargas de los compuestos disruptores endocrinos a los cuerpos de agua (Laganà et al, 2004). Sin embargo, aunque las PTARs convencionales no están diseñadas para eliminar compuestos disruptores endocrinos (Drewes et al, 2005), se ha reportado la degradación de anhídrido ftálico y bisfenol-A por este medio. Asimismo, una de la ventajas de emplear métodos biológicos para la degradación contaminantes son la mineralización y bajos costos (ver Apéndice A).…”

Section: Métodos Biológicosunclassified

“…No obstante, los compuestos disruptores endocrinos (ésteres del anhídrido ftálico y bisfenol-A) no son eficientemente eliminados y degradados en las plantas de tratamiento de aguas residuales (PTARs), las cuales emplean métodos biológicos, por lo que se convierten en un medio para que las concentraciones de estos compuestos se descarguen a los cuerpos de agua (Drewes et al, 2005). Lo anterior se debe principalmente a la falta de entendimiento de la degradación de estos compuestos y la relación con diversos aspectos en las PTARs como: eficiencias de procesos unitarios o de secuencias de procesos, parámetros operacionales (por ejemplo la carga orgánica total), el tiempo de retención hidráulico y el tiempo de retención de sólidos (Drewes et al, 2005). No obstante, algunos estudios reportados han sugerido una relación directa entre la eficiencia de remoción de los compuestos disruptores endocrinos y el incremento en el tiempo de retención hidráulico y el tiempo de retención de sólidos (Drewes et al, 2005).…”

Section: Recomendaciones Y/o Perspectivasunclassified

“…Lo anterior se debe principalmente a la falta de entendimiento de la degradación de estos compuestos y la relación con diversos aspectos en las PTARs como: eficiencias de procesos unitarios o de secuencias de procesos, parámetros operacionales (por ejemplo la carga orgánica total), el tiempo de retención hidráulico y el tiempo de retención de sólidos (Drewes et al, 2005). No obstante, algunos estudios reportados han sugerido una relación directa entre la eficiencia de remoción de los compuestos disruptores endocrinos y el incremento en el tiempo de retención hidráulico y el tiempo de retención de sólidos (Drewes et al, 2005).…”

Section: Recomendaciones Y/o Perspectivasunclassified

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Degradación de anhídrido ftálico y bisfenol-A empleando especies de cloro activo electrogeneradas sobre un ánodo dimensionalmente estable

Torres

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y cuenta con apoyo del mismo Consejo con el convenio 003893; por lo que agradece la beca recibida, a través del convenio No. 597968 para el desarrollo de esta tesis. Esta tesis fue desarrollada gracias al apoyo recibido del proyecto SECITI-CDMX México (No. 071-2016/095/2017) titulado "Planta piloto sustentable operada con energía solar para el tratamiento de agua pluvial de la CDMX", y del proyecto de CONACYT "Diseño de resinas macroporosas para eliminar oximetales de efluentes industriales por electrodeionización" con No. de apoyo CB2013/220232. A la Universidad Autónoma Metropolitana y al Posgrado en Energía y Medio por brindarme la oportunidad de crecer profesionalmente y personalmente. A la Dra. Judith Cardoso Martínez y al Dr. Jorge Vázquez Arenas por sus aportaciones, sugerencias, consejos y principalmente por guiarme en este camino académico. Al Dr. Ricardo Palma Goyes por su experiencia, motivación y recomendaciones a lo largo de este proceso. A la Dra. Ariadna Morales Pérez y al Dr. Roberto Olayo Valles por sus sugerencias, correcciones y aportaciones a este trabajo. A Dios, por ofrecerme esperanza, protección y fuerza en todo momento. A mi padre Francisco Javier y a mi madre Elsa por su confianza y apoyo incondicional. Al grupo de trabajo de electroquímica (W-003) y al grupo de Polímeros (T-125) por permitirme ser un integrante. A todos mis amigas, compañeros y demás personas que me apoyaron en este trayecto.

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Standardized application of yeast bioluminescent reporters as endocrine disruptor screen for comparative analysis of wastewater effluents from membrane bioreactor and traditional activated sludge

Wang¹,

Eldridge

Menn³

et al. 2015

Ecotoxicology

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A standardized protocol is demonstrated for bioluminescent strains Saccharomyces cerevisiae BLYES, BLYAS and BLYR as high-throughput screening tools to monitor the estrogenic, androgenic and toxic potencies in wastewater. The sensitivity and reproducibility of the assay in wastewater monitoring was evaluated for 7 day semi-continuous batch reactor using activated sludge with hormones spiked raw sewage. Yeast bioluminescent assay successfully captured the rapid removal of estrogenic and androgenic activities in the bioreactors, and demonstrated rapid response (≤4 h) with good reproducibility. This standardized protocol was then applied in a 12 months monitoring of the effluent of a WWTP located at Powell, TN, USA featuring parallel-operated full-scale membrane bioreactor (MBR) and traditional activated sludge (TAS) treatment. Monitoring results showed that estrogenic activity was persistent in all TAS and most MBR effluent samples, while residual androgenic activity was non-detectable throughout the monitored period. The estrogenic equivalents (EEQ) in TAS effluent ranged from 21.61 ng/L to 0.04 pg/L and averaged 3.25 ng/L. The EEQ in MBR effluent ranged from 2.88 ng/L to 0.0134 pg/L and averaged ~10 fold less (0.32 ng/L) than TAS. Despite the large temporal variation, MBR effluent EEQ was consistently lower than TAS on any given sampling date. Most MBR effluent samples also exhibited less cytotoxicity than TAS. Further analysis did not demonstrate significant correlation between effluent EEQ level and WWTP operational parameters including MLSS, SRT, HRT and BOD.

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Endocrine Disrupting Activity Changes in Water Reclamation Systems

Cited by 4 publications

References 12 publications

Microconstituents – What is a Typical Municipal Wastewater Treatment Plant Designer to Do?

Microconstituents – What is a Typical Municipal Wastewater Treatment Plant Designer to Do?

Degradación de anhídrido ftálico y bisfenol-A empleando especies de cloro activo electrogeneradas sobre un ánodo dimensionalmente estable

Standardized application of yeast bioluminescent reporters as endocrine disruptor screen for comparative analysis of wastewater effluents from membrane bioreactor and traditional activated sludge

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