Removal of Estrogenic Compounds from Filtered Secondary Wastewater Effluent in a Continuous Enzymatic Membrane Reactor. Identification of Biotransformation Products DOI

L. Lloret,

Gemma Eibes, Marı́a Teresa Moreira

et al.

Environmental Science & Technology, Journal Year: 2013, Volume and Issue: 47(9), P. 4536 - 4543

Published: April 1, 2013

In the present study, a novel and efficient technology based on use of an oxidative enzyme was developed to perform continuous removal estrogenic compounds from polluted wastewaters. A 2 L enzymatic membrane reactor (EMR) successfully operated for 100 h with minimal requirements laccase transformation estrone (E1), 17β-estradiol (E2), 17α-ethinylestradiol (EE2)from both buffer solution real wastewater (filtered secondary effluent). When experiments were performed at high low concentrations target compounds, 4 mg/L μg/L, not only yields (80-100%) but also outstanding reduction estrogenicity (about 84-95%) attained. EMR applied treatment municipal wastewaters environmental different (0.29-1.52 ng/L), excellent results achieved indicating efficiency potential system. second goal this study relied identification products elucidate catalytic mechanism estrogens' by laccase. The formation dimers trimers E1, E2, EE2, as well decomposition E2 into E1 laccase-catalyzed treatment, has been demonstrated liquid chromatography atmospheric pressure chemical ionization (LC-APCI) analysis confirmed determination accurate masses through electrospray time-of-flight mass spectrometry (LC-ESI-TOF). Dimeric EE2 found even when operating concentrations. Moreover, reaction pathways proposed.

Language: Английский

Pharmaceuticals and personal care products (PPCPs) in treated wastewater discharges into Charleston Harbor, South Carolina DOI
Melanie L. Hedgespeth, Yelena Sapozhnikova, Paul L. Pennington

et al.

The Science of The Total Environment, Journal Year: 2012, Volume and Issue: 437, P. 1 - 9

Published: Aug. 17, 2012

Language: Английский

Citations

156
Fate and removal of estrogens in municipal wastewater DOI
LeeAnn Racz, Ramesh Goel

Journal of Environmental Monitoring, Journal Year: 2009, Volume and Issue: 12(1), P. 58 - 70

Published: Nov. 25, 2009

Natural and synthetic estrogens are some of the most potent endocrine disrupting compounds found in municipal wastewater. Much research has been conducted on source fate wastewater treatment plants. Sorption biodegradation primary removal mechanisms for activated sludge systems, which widely used biological techniques treatment. However, when a plant is incomplete, these enter environment through discharges or waste at concentrations that can cause endocrine-reproductive system alterations birds, reptiles mammals. Therefore, studies have also focused potential advanced technologies with aim removing before discharging effluent disposing sludge. This review discusses physiological effects degree problems pose as they stream. Thereafter, this analyzes their systems how may reach drinking water sources. Furthermore, includes discussion various being investigated future trends pressing environmental issue.

Language: Английский

Citations

142
Occurrence of pharmaceuticals and personal care products along the West Prong Little Pigeon River in east Tennessee, USA DOI
Chang‐Ping Yu, Kung‐Hui Chu

Chemosphere, Journal Year: 2009, Volume and Issue: 75(10), P. 1281 - 1286

Published: April 23, 2009

Language: Английский

Citations

137
Biochemical Mechanisms and Catabolic Enzymes Involved in Bacterial Estrogen Degradation Pathways DOI Creative Commons
Yi‐Lung Chen, Chang-Ping Yu, Tzong‐Huei Lee

et al.

Cell chemical biology, Journal Year: 2017, Volume and Issue: 24(6), P. 712 - 724.e7

Published: May 25, 2017

Language: Английский

Citations

115
Chemical Properties, Environmental Fate, and Degradation of Seven Classes of Pollutants DOI
Sergio Manzetti,

E. Roos van der Spoel,

David van der Spoel

et al.

Chemical Research in Toxicology, Journal Year: 2014, Volume and Issue: 27(5), P. 713 - 737

Published: March 19, 2014

Industrialism has brought a long series of benefits for modern civilization. Concomitantly, reversible and irreversible changes have been inflicted upon the environment, affecting humans, animals, whole ecosystems leading to effects such as declining reproduction in human beings, developmental challenges on various species, destroyed habitats across globe. In this context, vast repertoire older literature is reviewed pollutants their status 2014. The compound classes covered review are polychlorinated biphenyls, halogenated hydrocarbons, estrogen analogues, phthalates, dioxins, perfluorinated compounds, brominated flame retardants. These groups represent ubiquitous pollutants, which some circulated environment more than 60 years. describes chemical properties, environmental fate, toxicological these humans including an introductory section detoxification systems that triggered most species intoxication. This combined vivo transformation, chemistry, structure-activity relationships aids understanding biomagnification, bioaccumulation, transformation essential toxicologists, scientists, legislators. concluded with outlook.

Language: Английский

Citations

111
Linking bacterial population dynamics and nutrient removal in the granular sludge biofilm ecosystem engineered for wastewater treatment DOI Open Access
David G. Weissbrodt, Noam Shani, Christof Holliger

et al.

FEMS Microbiology Ecology, Journal Year: 2014, Volume and Issue: 88(3), P. 579 - 595

Published: March 20, 2014

Intensive nutrient removal from wastewater in anaerobic-aerobic systems using granular sludge should rely on optimal balances at biofilm and microbial ecology levels. This study targets the impacts of reactor characteristics fluctuations operation conditions bacterial community structures by means numerical methods. The dynamics both predominant accompanying populations were investigated with high resolution temporal phylogenetic scales two reactors operated during 5 months synthetic wastewater. Multivariate analyses highlighted significant correlations process to first reactor, whereas nitrification phosphorus might have been affected oxygen mass transfer limitations no impact population level second system. continuum was composed major antagonistic Accumulibacter-Nitrosomonas-Nitrospira Competibacter-Cytophaga-Intrasporangiaceae clusters that prevailed under leading efficient P- (> 95%) N-removal 65%) altered (< 90%) 60%), respectively. A third cluster independent performances dominated Xanthomonadaceae affiliates average more abundant 25 °C (31 ± 5%) than 20 (22 4%). Starting physiological traits numerous phylotypes identified, a conceptual model is proposed as base for functional analysis microbiome future investigations complex real

Language: Английский

Citations

107
Microbial degradation of steroid sex hormones: implications for environmental and ecological studies DOI Creative Commons
Yin‐Ru Chiang, Sean Ting‐Shyang Wei, Po‐Hsiang Wang

et al.

Microbial Biotechnology, Journal Year: 2019, Volume and Issue: 13(4), P. 926 - 949

Published: Oct. 30, 2019

Summary Steroid hormones modulate development, reproduction and communication in eukaryotes. The widespread occurrence persistence of steroid have attracted public attention due to their endocrine‐disrupting effects on both wildlife human beings. Bacteria are responsible for mineralizing steroids from the biosphere. Aerobic degradation relies O 2 as a co‐substrate oxygenases activate cleave recalcitrant steroidal core ring. To date, two oxygen‐dependent pathways – 9,10‐ seco pathway androgens 4,5‐ oestrogens been characterized. Under anaerobic conditions, denitrifying bacteria adopt 2,3‐ degrade different structures. Recent meta‐omics revealed that microorganisms able highly diverse ubiquitous ecosystems. This review also summarizes culture‐independent approaches using characteristic metabolites catabolic genes monitor biodegradation various

Language: Английский

Citations

99
Biotransformation of pharmaceuticals by ammonia oxidizing bacteria in wastewater treatment processes DOI
Yifeng Xu, Zhiguo Yuan, Bing‐Jie Ni

et al.

The Science of The Total Environment, Journal Year: 2016, Volume and Issue: 566-567, P. 796 - 805

Published: May 28, 2016

Language: Английский

Citations

98
Occurrence and distribution of carbamazepine, nicotine, estrogenic compounds, and their transformation products in wastewater from various treatment plants and the aquatic environment DOI

Kalu I. Ekpeghere,

Wonjin Sim,

Heon-Jun Lee

et al.

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 640-641, P. 1015 - 1023

Published: June 5, 2018

Language: Английский

Citations

91
Relationship between gut microbiota and host-metabolism: Emphasis on hormones related to reproductive function DOI Creative Commons
Tarique Hussain, Ghulam Murtaza, Dildar Hussain Kalhoro

et al.

Animal nutrition, Journal Year: 2021, Volume and Issue: 7(1), P. 1 - 10

Published: Jan. 10, 2021

It has been well recognized that interactions between the gut microbiota and host-metabolism have a proven effect on health. The lumen is known for harboring different bacterial communities. Microbial by-products structural components, which are derived through microbiota, generate signaling response to maintain homeostasis. Gut not only involved in metabolic disorders, but also participates regulation of reproductive hormonal function. Bacterial phyla, localized gut, allow metabolization steroid hormones stimulation enzymes. Reproductive such as progesterone, estrogen testosterone play pivotal role successful completion events. Disruption this mechanism may lead disorders. Environmental bacteria can affect metabolism, degrade their relevant compounds. This behavior safely be implemented eliminate steroidal compounds from polluted environment. In review, we summarize metabolism vice-versa, examined significant influence process various events Altogether, evidence suggests exert central modification host action impact efficiency animals humans.

Language: Английский

Citations

70