Emerging organic contaminants in wastewater treatment plants

2020 ◽  
Author(s):  
Thi Thanh Hue Nguyen
Keyword(s):  
Wastewater Treatment ◽  
Organic Contaminants ◽  
Wastewater Treatment Plants ◽  
Emerging Organic Contaminants

Emerging investigators series: occurrence and fate of emerging organic contaminants in wastewater treatment plants with an enhanced nitrification step

2018 ◽  
Vol 4 (10) ◽  
pp. 1412-1426 ◽  
Author(s):  
Yue Xing ◽  
Yaochun Yu ◽  
Yujie Men
Keyword(s):  
Wastewater Treatment ◽  
Organic Contaminants ◽  
Wastewater Treatment Plants ◽  
Treatment Processes ◽  
Emerging Organic Contaminants

The goal of this study is to investigate the occurrence and removal of emerging organic contaminants (EOCs) during wastewater treatment processes and understand the role of enhanced nitrification treatment in removing EOCs.

Modeling Volatile Organic Contaminants' Fate in Wastewater Treatment Plants

1994 ◽  
Vol 120 (3) ◽  
pp. 588-609 ◽  
Author(s):  
H. Melcer ◽  
J. P. Bell ◽  
D. J. Thompson ◽  
C. M. Yendt ◽  
J. Kemp ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Organic Contaminants ◽  
Wastewater Treatment Plants ◽  
Volatile Organic ◽  
Volatile Organic Contaminants

scholarly journals Structural diversity of organic contaminants in sewage sludge: a comparison of sewage fingerprints from Germany and China

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Ann-Kathrin Wluka ◽  
Yuehua Huang ◽  
Laura Coenen ◽  
Larissa Dsikowitzky ◽  
Jan Schwarzbauer
Keyword(s):  
Wastewater Treatment ◽  
Sewage Sludge ◽  
Organic Contaminants ◽  
Wastewater Treatment Plants ◽  
Wide Spectrum ◽  
Structural Diversity ◽  
Special Focus ◽  
Long Term Effects ◽  
Nitrogen And Phosphorus ◽  
Target Screening

AbstractSewage sludge is formed during wastewater treatment and in recent years, the amount of sewage sludge increased rapidly all over the world. This sewage sludge is attractive for usage in agriculture as an inexpensive nitrogen and phosphorus fertilizer. However, there is only very limited knowledge about the spectrum of organic pollutants that might occur in sewage sludge and is probably posing a threat to the environment. We therefore conducted GC–MS based non-target screening analyses in order to identify a wide spectrum of organic contaminants in sludge samples from several wastewater treatment plants and to figure out corresponding finger-prints of pollution. The plants are located in Germany and China and have various capacities ranging from 35,000 to 1.1 million population equivalents. The special focus was to reveal information on the structural variety of individual organic compounds in sludge samples from the two countries. Several emerging pollutants including some fragrances, pharmaceutical educts, vitaminoids, technical additives were identified accompanied by compounds of biogenic origin. Some of these compounds have rarely been reported as constituents of sewage sludge to date and, consequently, are relevant candidates for more specific assessments including the ecotoxicological long-term effects. Based on the results of this study, it seems mandatory to establish non-target screening analyses on a regularly base as a tool for a comprehensive identification of the variety of anthropogenic organic constituents. Following, such contaminant spectrum can act as basis for further environmental risk assessments as well as to provide individual fingerprints for evaluation of impacts on ecosystems.

scholarly journals Slovak natural zeolites as a suitable medium for antibiotics elimination from wastewater

2019 ◽  
Vol 12 (2) ◽  
pp. 163-167
Author(s):  
Petra Szabová ◽  
Michaela Plekancová ◽  
Nikolas Gróf ◽  
Igor Bodík
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plant ◽  
Organic Contaminants ◽  
Treatment Plant ◽  
Therapeutic Group ◽  
Pharmaceutical Substances ◽  
Emerging Organic Contaminants ◽  
Water Compartment ◽  
High Polarity ◽  
Environmental Compartments

Abstract Pharmaceuticals are one of the most used compounds present in various environmental compartments. Due to their high consumption and possible unhealthy effect on ecosystems, pharmaceuticals have been identified as “emerging organic contaminants”. Since these compounds have medium to high polarity, they end up in the water compartment after being used. This work deals with the sorption of three pharmaceutical substances from the therapeutic group of antibiotics. Specifically we have focused on Azithromycin, Clarithromycin and Erythromycin. Three fractions of the natural Slovak zeolites (200 μm, 0.5—1 mm and 1.5—2 mm) were used as the sorption medium. Experimental results have proven very effective sorption of antibiotics by zeolites. Azithromycin removal of over 99 % for all three zeolite fractions from wastewater treatment plant Stupava and wastewater treatment plant Devínska Nová Ves was achieved. Clarithromycin removal of 79 % for fraction 1—2.5 mm, 87.3 % for fraction 0.5—1 mm and of 99.8 % for fraction 200 μm from the effluent of wastewater treatment plant Stupava was observed. Erythromycin removal of 31.3 % for fraction 1—2.5 mm, 66.9 % for fraction 0.5—1mm and of 94.7 % for fraction 200 μm from effluent of wastewater treatment plant Stupava was measured. More than 95 % of Clarithromycin and Erythromycin were eliminated from the effluent of wastewater treatment plant Devínska Nová Ves. The highest elimination percentage was observed for the smallest zeolite fraction due to the highest specific surface area.

scholarly journals Overview of electronic tongue sensing in environmental aqueous matrices: potential for monitoring emerging organic contaminants

2019 ◽  
Vol 27 (2) ◽  
pp. 202-214 ◽  
Author(s):  
Cátia Magro ◽  
Eduardo P. Mateus ◽  
Maria Raposo ◽  
Alexandra B. Ribeiro
Keyword(s):  
Environmental Monitoring ◽  
Organic Contaminants ◽  
Response Times ◽  
Wastewater Treatment Plants ◽  
Low Cost ◽  
Electronic Tongue ◽  
Analytical Techniques ◽  
Fast Response ◽  
Environmental Matrices ◽  
Emerging Organic Contaminants

Emerging organic contaminants (EOC) are synthetic or naturally occurring chemicals that have the potential to enter the environment and cause known or suspected adverse ecological and human health effects. Despite not being commonly monitored, EOC are often detected in effluents and water bodies because of their inefficient removal in conventional wastewater treatment plants. There is a growing concern about the presence and impact of EOC as well as the need for reliable and effective water monitoring using sensors capable of detecting the target molecules in complex media. Due to their specificities, such as fast response times, low cost, portability and user-friendly operation, electronic tongue (e-tongue) systems present some advantages over the traditional analytical techniques (e.g., chromatographic systems) used for environmental monitoring. We reviewed e-tongue sensors, focusing on their ability for real-time environmental monitoring. A bibliometric evaluation was carried out, along with a study of the status of the existing e-tongue systems, how they worked, and their applications in different fields. The potential of e-tongue sensors to detect organic contaminants in aqueous environmental matrices is discussed, with a particular focus on EOC.

scholarly journals Screening of organic pollutants in urban wastewater treatment plants and corresponding receiving waters

2017 ◽  
Vol 76 (4) ◽  
pp. 832-846 ◽  
Author(s):  
Ann-Kathrin Wluka ◽  
Laura Coenen ◽  
Jan Schwarzbauer
Keyword(s):  
Wastewater Treatment ◽  
Surface Water ◽  
Organic Contaminants ◽  
Aquatic Environment ◽  
Wastewater Treatment Plants ◽  
Structural Diversity ◽  
Gas Chromatography Mass Spectrometry ◽  
Receiving Waters ◽  
Target Screening ◽  
Wastewater Samples

There is a lack of knowledge in environmental pollution of the anthropogenic contaminants in wastewater and surface water. Several organic compounds merit special attention, because of their potential risk to the aquatic environment. Therefore, gas chromatography–mass spectrometry-based screening analyses were performed in order to identify anthropogenic organic contaminants and to reveal information on the structural diversity of individual compounds and to characterize their environmental behavior. Wastewater samples from wastewater treatment plants in Germany, representing various capacities, and surface water samples from corresponding receiving waters were analyzed. Numerous substances were identified in the samples. Several compounds were treated inadequately during wastewater treatment, and their identification in surface waters highlights their potential impact on the aquatic environment. Contaminants were selected according to available information about their environmental relevance (e.g. persistence, bioaccumulation potential), their possible application or usage and their occurrence within the environment. Based on the results of this study, it is recommended that non-target screening analyses be undertaken to identify the structural diversity of anthropogenic organic contaminants and that further investigations of specific anthropogenic compounds be undertaken as a high priority.

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