Removal of Endocrine-Disrupting Compounds, Estrogenic Activity, and Escherichia coliform from Secondary Effluents in a TiO2-Coated Photocatalytic Reactor

2012 ◽  
Vol 29 (3) ◽  
pp. 195-201 ◽  
Author(s):  
Wenlong Zhang ◽  
Yi Li ◽  
Qianyuan Wu ◽  
Hongying Hu
Keyword(s):  
Estrogenic Activity ◽  
Endocrine Disrupting Compounds ◽  
Photocatalytic Reactor ◽  
Endocrine Disrupting ◽  
Secondary Effluents

Detection and removal of estrogencity in membrane biological reactors

2006 ◽  
Vol 6 (6) ◽  
pp. 19-26 ◽  
Author(s):  
J.Y. Hu ◽  
X. Chen
Keyword(s):  
Estrogenic Activity ◽  
Solid Phase ◽  
Treatment Plant ◽  
Endocrine Disrupting Compounds ◽  
Pilot Scale ◽  
Membrane Bioreactors ◽  
Yeast Cells ◽  
Endocrine Disrupting ◽  
And Behavior ◽  
Fate And Behavior

Three pilot-scale submerged membrane bioreactors (MBRs) in a local wastewater treatment plant (K, M and Z) were studied with the objective to compare the performance of pre-denitrification MBR systems in eliminating the estrogenic activity of the effluent of primary clarifier. A total of 5 batches of samples, which included influent, effluent, supernatant and sludge from the respective aerobic and anoxic tanks were collected over the span. They were investigated by using the developed solid-phase extraction (SPE) protocol coupled with a modified yeast-based estrogen screen (YES) assay. From the results, it could be seen that M MBR demonstrated the best endocrine disrupting compounds (EDCs) removal efficiency. The fate and behavior of EDCs in MBR systems were fairly understood with estrogenic activity formation dominating in the anoxic tank and removal dominating in the aerobic tank. It is believed that the sorption of EDCs onto the sludge as well as biodegradation of EDCs might be the key mechanisms for the EDCs removal. The low response of YES when dealing with influent samples was mainly due to the inhibition and antagonist effects induced by the influent samples on yeast cells.

Monitoring endocrine disrupting compounds and estrogenic activity in tap water from Central Spain

2014 ◽  
Vol 21 (15) ◽  
pp. 9297-9310 ◽  
Author(s):  
S. Esteban ◽  
M. Gorga ◽  
S. González-Alonso ◽  
M. Petrovic ◽  
D. Barceló ◽  
...  
Keyword(s):  
Estrogenic Activity ◽  
Tap Water ◽  
Endocrine Disrupting Compounds ◽  
Central Spain ◽  
Endocrine Disrupting

Analysis and occurrence of endocrine-disrupting compounds and estrogenic activity in the surface waters of Central Spain

2014 ◽  
Vol 466-467 ◽  
pp. 939-951 ◽  
Author(s):  
S. Esteban ◽  
M. Gorga ◽  
M. Petrovic ◽  
S. González-Alonso ◽  
D. Barceló ◽  
...  
Keyword(s):  
Surface Waters ◽  
Estrogenic Activity ◽  
Endocrine Disrupting Compounds ◽  
Central Spain ◽  
Endocrine Disrupting

Removal of endocrine disrupting chemicals in a large scale membrane bioreactor plant combined with anaerobic-anoxic-oxic process for municipal wastewater reclamation

2011 ◽  
Vol 64 (7) ◽  
pp. 1511-1518 ◽  
Author(s):  
Chunying Wu ◽  
Wenchao Xue ◽  
Haidong Zhou ◽  
Xia Huang ◽  
Xianghua Wen
Keyword(s):  
Removal Efficiency ◽  
Large Scale ◽  
Membrane Bioreactor ◽  
Municipal Wastewater ◽  
Estrogenic Activity ◽  
Endocrine Disrupting Compounds ◽  
Gas Chromatography Mass Spectrometry ◽  
Wastewater Reclamation ◽  
Kd Values ◽  
Endocrine Disrupting

The removal of eight typical endocrine disrupting compounds (EDCs) in a full scale membrane bioreactor combined with anaerobic-anoxic-oxic process (A2/O-MBR) for municipal wastewater reclamation located in Beijing was investigated. These EDCs, including 4-octylphenol (4-OP), 4-n-nonylphenol (4-n-NP), bisphenol A (BPA), estrone (E1), 17α-estradiol (17α-E2), 17β-estradiol (17β-E2), estriol (E3) and 17α-ethinylestradiol (EE2), were simultaneously analyzed by gas chromatography/mass spectrometry after derivatization. The concentrations of eight EDCs were also measured in sludge of anaerobic, anoxic, oxic and membrane tanks to measure sludge-water distribution coefficients (Kd values) as the indicator of adsorption propensity of target compound to sludge. The removal efficiencies of EDCs reached above 97%, except for 4-n-NP removal efficiency of 72%, 4-OP removal efficiency of 75% and EE2 removal efficiency of 87% in the A2/O-MBR process. The high Kd values indicated that the sludge had a large adsorption capacity for these EDCs, and significantly contributed to removal of EDCs. Yeast estrogen screen assay was performed on samples to assess the total estrogenic activity by measuring the 17β-E2 equivalent quantity (EEQ), expressed in ng-EEQ/L. The measured EEQ value was markedly reduced from 72.1 ng-EEQ/L in the influent to 4.9 ng-EEQ/L in the effluent. Anoxic tank and anaerobic tank contributed to 80% and 37% in total EEQ removal, respectively.

scholarly journals Evaluation of the Presence of Endocrine-Disrupting Compounds in Dissolved and Solid Wastewater Treatment Plant Samples of Gran Canaria Island (Spain)

2013 ◽  
Vol 2013 ◽  
pp. 1-15 ◽  
Author(s):  
T. Vega-Morales ◽  
Z. Sosa-Ferrera ◽  
J. J. Santana-Rodríguez
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Estrogenic Activity ◽  
Solid Phase ◽  
Treatment Plant ◽  
Endocrine Disrupting Compounds ◽  
Gran Canaria ◽  
Assisted Extraction ◽  
Endocrine Disrupting ◽  
Ultrasonic Assisted

Liquid and solid samples from two wastewater treatment plants (WWTPs) on Gran Canaria Island (Spain) have been tested for the presence of compounds with endocrine-disrupting properties. The selected degradation stages were sampled bimonthly from each WWTP over the 12-month period from July 2010 to July 2011. The analytical methods used for the determination of the endocrine-disrupting compounds (EDCs) were based on on-line solid phase extraction, microwave-assisted extraction (MAE), and ultrasonic-assisted extraction (UAE) coupled to UHPLC-MS/MS. All of the hyphenated methodologies employed in this work showed good recoveries (72–104%) and sensitivities, with LODs lower than 7.0 ng L−1and 6.3 ng g−1for the dissolved and solid fractions, respectively. We have also evaluated the estrogenicity of the samples in terms of their estradiol equivalent concentrations (EEQs). The chemical analysis of the selected EDCs revealed fairly low concentrations for both natural and synthetic oestrogens, alkylphenolic compounds, and bisphenol-A in each of the dissolved, particulate, and sludge samples (ng L−1or ng g−1). However, the estimated estrogenic activity indicated that the majority of samples could represent an important environmental risk, clearly surpassing the threshold to exert deleterious consequences on living beings.

Biodegradation of endocrine-disrupting compounds and suppression of estrogenic activity by ligninolytic fungi

Chemosphere ◽  
2009 ◽  
Vol 75 (6) ◽  
pp. 745-750 ◽  
Author(s):  
Tomáš Cajthaml ◽  
Zdena Křesinová ◽  
Kateřina Svobodová ◽  
Monika Möder
Keyword(s):  
Estrogenic Activity ◽  
Endocrine Disrupting Compounds ◽  
Ligninolytic Fungi ◽  
Endocrine Disrupting

scholarly journals Occurrence and Risk Assessment of Steroidal Hormones and Phenolic Endocrine Disrupting Compounds in Surface Water in Cuautla River, Mexico

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2628 ◽  
Author(s):  
Griselda Marissa Calderón-Moreno ◽  
Josefina Vergara-Sánchez ◽  
Hugo Saldarriaga-Noreña ◽  
Maria Luisa García-Betancourt ◽  
Martha Lilia Domínguez-Patiño ◽  
...  
Keyword(s):  
Surface Water ◽  
Estrogenic Activity ◽  
Solid Phase ◽  
Treatment Plant ◽  
Domestic Wastewater ◽  
Aquatic Organisms ◽  
Endocrine Disrupting Compounds ◽  
Potential Ecological Risk ◽  
Endocrine Disrupting ◽  
Steroidal Hormones

In this study, two hormones 17β-estradiol (E2) and 17α-ethynylestradiol (EE2), and three phenolic compounds, bisphenol A (BPA), 4-N-nonylphenol (4-NP) and 4-tert-octylphenol (4-t-OP), were determined in surface water in the Cuautla River at the State of Morelos during the dry-season in Mexico. The endocrine disrupting compounds (EDCs) were extracted from water samples using solid-phase extraction (SPE) with end-capped C18, and then the extracts were chemically derivatized to TMS (trimethylsylane)-compounds and analyzed by gas chromatography coupled to mass spectrometry (GCMS). The most abundant compound was BPA (22.46 ± 30.17 ng L−1), followed by 4-t-OP (11.24 ± 11.76 ng L−1), 4-NP (7.53 ± 14.88 ng L−1), EE2 (2.37 ± 4.36 ng L−1) and E2 (0.97 ± 1.82 ng L−1). The residual amounts of target compounds could either reach stream surface water from direct domestic wastewater discharges, conventional wastewater treatment plant or can be a result from the use of agrochemicals in crop areas. The EDCs in Cuautla River exerted a high pressure on the aquatic ecosystem because their presences in surface water caused medium and high potential ecological risk. Besides, it was found that aquatic organisms were exposed to estrogenic activity.

Sign in / Sign up

Export Citation Format

Share Document