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.

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.

Occurrence of Estrogens in Wastewater Treatment Plants and Surface Water in Bangkok Area, Thailand

2014 ◽  
Vol 931-932 ◽  
pp. 721-726 ◽  
Author(s):  
Apaporn Ruchiraset ◽  
Sopa Chinwetkitvanich
Keyword(s):  
Wastewater Treatment ◽  
Surface Water ◽  
Water Samples ◽  
Wastewater Treatment Plants ◽  
Grab Sampling ◽  
Treatment Processes ◽  
17Β Estradiol ◽  
Receiving Waters ◽  
Surface Water Samples ◽  
Receiving Water

This study is the beginning of attempts to obtain existing data of estrogens contamination in wastewater treatment plants (WWTPs) in Bangkok Metropolitan area. Influents and effluents of seven WWTPs in Bangkok, and water samples from Bang-sue canal (receiving water from Chatuchak (CTC)-WWTP) and Chaopraya River (as receiving water from Chongnonsri (CNS)-WWTP) were collected by grab sampling. The sampling and analyses were done three times in a year round, during March to April 2010, October 2010, and January 2011. 17β-estradiol (E2) was found as in the majority in most samples including the surface water samples. In addition, the results of receiving water samples in both locations show that downstream (of discharged point) estrogens were a little higher than upstream ones. This could imply that WWTPs might be the important sources of estrogens contamination in surface (receiving) waters in Bangkok area and that the biological wastewater treatment processes currently used in WWTPs could not completely remove these estrogens.

Occurrence and source analysis of selected antidepressants and their metabolites in municipal wastewater and receiving surface water

2018 ◽  
Vol 20 (7) ◽  
pp. 1020-1029 ◽  
Author(s):  
Luo-dan Ma ◽  
Jian Li ◽  
Jia-jun Li ◽  
Min Liu ◽  
Dong-zhi Yan ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Surface Water ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Source Analysis ◽  
Receiving Waters ◽  
Huangpu River

Seven commonly utilized antidepressants (amitriptyline, fluoxetine, sertraline, citalopram, paroxetine, venlafaxine, and bupropion) and three of their metabolites were detected in four wastewater treatment plants (WWTPs) and corresponding receiving waters including the mainstream and three of the tributaries of Huangpu River, Shanghai.

scholarly journals Impact Assessment of the Wastewater Treatment Plants’ Discharges on Maritsa River

2021 ◽  
Vol 25 (2) ◽  
pp. 169-182
Author(s):  
Tony Venelinov ◽  
◽  
Galina Yotova ◽  
Veronika Mihaylova ◽  
Svetlana Lazarova ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Surface Water ◽  
Wastewater Treatment Plants ◽  
Oxygen Demand ◽  
Quality Parameters ◽  
Sampling Point ◽  
Before And After ◽  
Wastewater Samples ◽  
The Impact

Data analysis of wastewater samples at the outlets of wastewater treatment plants (WWTPs) of Pazardzhik, Plovdiv and Svilengrad, which discharge into the Maritsa River is presented. Total monthly loads for 2017 at the outlets are calculated using the monthly averages for the concentrations of chemical oxygen demand, biochemical oxygen demand, total phosphorus and total nitrogen (TN) and the monthly averages for the flow rates. The contributions of the WWTPs to the total river loads emphasize that the impact of WWTPs of Pazardzhik and Plovdiv is significantly greater than WWTP of Svilengrad. Additionally, river water samples were collected before and after the discharge points of the WWTPs in August 2018 and analyzed for water quality parameters listed in Directive 75/440/EEC. Comparison between the river concentrations before the outlet of WWPT - Pazardzhik and after the last sampling point (the outlet of WWTP - Svilengrad) indicates an increase for all the studied parameters, except for Al and Cu. Based on the results obtained for TN, the category of the surface water is significantly deteriorated after discharge of the WWTP - Plovdiv. Wastewater effect on the river surface water is also estimated by using a battery of ecotoxicological tests. The results are presented and compared by the classical approach using categorization based on water quality indicators.

scholarly journals Effects of Clinical Wastewater on the Bacterial Community Structure from Sewage to the Environment

2021 ◽  
Vol 9 (4) ◽  
pp. 718
Author(s):  
Ilse Verburg ◽  
H. Pieter J. van Veelen ◽  
Karola Waar ◽  
John W. A. Rossen ◽  
Alex W. Friedrich ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Surface Water ◽  
Relative Abundance ◽  
Wastewater Treatment Plants ◽  
Amplicon Sequencing ◽  
16S Rrna Amplicon Sequencing ◽  
Treated Effluent ◽  
Sampling Campaign ◽  
Wastewater Samples ◽  
A Minor

This study pertains to measure differences in bacterial communities along the wastewater pathway, from sewage sources through the environment. Our main focus was on taxa which include pathogenic genera, and genera harboring antibiotic resistance (henceforth referred to as “target taxa”). Our objective was to measure the relative abundance of these taxa in clinical wastewaters compared to non-clinical wastewaters, and to investigate what changes can be detected along the wastewater pathway. The study entailed a monthly sampling campaign along a wastewater pathway, and taxa identification through 16S rRNA amplicon sequencing. Results indicated that clinical and non-clinical wastewaters differed in their overall bacterial composition, but that target taxa were not enriched in clinical wastewater. This suggests that treatment of clinical wastewater before release into the wastewater system would only remove a minor part of the potential total pathogen load in wastewater treatment plants. Additional findings were that the relative abundance of most target taxa was decreased after wastewater treatment, yet all investigated taxa were detected in 68% of the treated effluent samples—meaning that these bacteria are continuously released into the receiving surface water. Temporal variation was only observed for specific taxa in surface water, but not in wastewater samples.

scholarly journals Occurrence of SARS-CoV-2 RNA in Six Municipal Wastewater Treatment Plants at the Early Stage of COVID-19 Pandemic in The United States

Pathogens ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 798
Author(s):  
Samendra P. Sherchan ◽  
Shalina Shahin ◽  
Jeenal Patel ◽  
Lauren M. Ward ◽  
Sarmila Tandukar ◽  
...  
Keyword(s):  
United States ◽  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Quantitative Polymerase Chain Reaction ◽  
The United States ◽  
Secondary Effluent ◽  
Untreated Wastewater ◽  
Treatment Processes ◽  
Wastewater Samples

In this study, we investigated the occurrence of Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) RNA in primary influent (n = 42), secondary effluent (n = 24) and tertiary treated effluent (n = 34) collected from six wastewater treatment plants (WWTPs A–F) in Virginia (WWTP A), Florida (WWTPs B, C, and D), and Georgia (WWTPs E and F) in the United States during April–July 2020. Of the 100 wastewater samples analyzed, eight (19%) untreated wastewater samples collected from the primary influents contained SARS-CoV-2 RNA as measured by reverse transcriptase quantitative polymerase chain reaction (RT-qPCR) assays. SARS-CoV-2 RNA were detected in influent wastewater samples collected from WWTP A (Virginia), WWTPs E and F (Georgia) and WWTP D (Florida). Secondary and tertiary effluent samples were not positive for SARS-CoV-2 RNA indicating the treatment processes in these WWTPs potentially removed SARS-CoV-2 RNA during the secondary and tertiary treatment processes. However, further studies are needed to understand the log removal values (LRVs) and transmission risks of SARS-CoV-2 RNA through analyzing wastewater samples from a wider range of WWTPs.

scholarly journals The role of wastewater treatment plants in surface water contamination by plastic pollutants

2018 ◽  
Vol 45 ◽  
pp. 00054 ◽  
Author(s):  
Bozena Mrowiec
Keyword(s):  
Wastewater Treatment ◽  
Surface Water ◽  
Water Contamination ◽  
Membrane Filtration ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Point Sources ◽  
Municipal Sewage ◽  
Municipal Wastewater Treatment ◽  
Surface Water Contamination

The aim of this paper was to review the literature data regarding the physico-chemical characteristic of plastic pollutants discharged with municipal sewage, the practical possibility of removing microplastic particles from wastewater during different treatment steps in WWTPs and the problem of surface water contamination within them. Microplastics (the size range of 1 nm to < 5 mm), have been recognized as an emerging threat, as well as an ecotoxicological and ecological risk for water ecosystems. Municipal wastewater treatment plants (WWTPs) are mentioned as the main point sources of microplastics in an aquatic environment. Microplastic particles can be effectively removed in the primary treatment zones via solids skimming and sludge settling processes. Different tertiary treatment processes such as: gravity sand filtration, discfilter, air flotation and membrane filtration provide substantial additional removal of microplastics, and the efficiency of wastewater treatment process can be at a removal level of 99.9%. Nevertheless, given the large volumes of effluent constantly discharged to receivers, even tertiary level WWTPs may constitute a considerable source of microplastics in the surface water.

scholarly journals Biological Activity of Wastewater Assessed Using in Vitro Cell-Based Assays

2021 ◽  
Author(s):  
Adamo R. Petosa ◽  
Monica Nowierski ◽  
Viviane Yargeau
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Estrogenic Activity ◽  
Solid Phase ◽  
Treated Wastewater ◽  
Chemical Analyses ◽  
Untreated Wastewater ◽  
17Β Estradiol ◽  
Receiving Waters

Abstract Bioanalytical tools, namely in vitro bioassays, can be employed in tandem with chemical analyses to assess the efficacy of wastewater treatment and the potential for adverse effects from the discharges of wastewater into receiving waters. In the present study, samples of untreated wastewater (i.e. influent) and treated wastewater (i.e. effluent) were collected from two wastewater treatment plants and a wastewater treatment lagoon serving municipalities in southern Ontario, Canada. In addition, grab samples of surface water were collected downstream of the lagoon discharge. After solid phase extraction (SPE) using ion-exchange columns for basic/neutral and acidic compounds, respectively, the extracts were analyzed for a suite of 16 indicator compounds. The two SPE extracts were combined for analysis of biological responses in four in vitro cell-based bioassays. The concentrations of several indicator compounds, including the estrogens, 17β-estradiol and 17α-ethinylestradiol, were below the limits of detection. However, androstenedione and estrone were detected in several influent samples. The concentrations of these steroid hormones and some of the other indicator compounds declined during treatment but acesulfame K, carbamazepine, trimethoprim and DEET persisted in the effluent. The MTS- CellTiter 96® AQueous One Solution Cell Proliferation Assay (MTS) indicated that cell viability was not affected by exposure to the extracts. The Qiagen Nuclear Receptors 10-Pathway Reporter Array indicated that several cellular pathways were upregulated, with the greatest upregulation observed with the estrogen receptor (i.e. induction ratios 12 to 47) and the liver X receptor (i.e. induction ratios 10 to 45). The ERα CALUX assay indicated that estrogenic activity was lower in effluents compared to influents, with the greatest estrogenic activity observed for grab samples of influent from the lagoon (i.e. 56-215 ng L-1 17β-estradiol equivalents). Finally, the results of the Nrf2 Luciferase Luminescence Assay indicated a lower oxidative stress in the effluent samples. Overall, the present study demonstrates that chemical analyses are limited in their ability to predict or explain reductions in the toxicity of treated wastewater. There are thus advantages to using a combination of chemical analyses and in vitro bioassays to monitor the treatment efficiency of wastewater treatment plants and to predict the potential impacts of wastewater discharges into receiving waters.

Antiviral drugs in aquatic environment and wastewater treatment plants: A review on occurrence, fate, removal and ecotoxicity

2020 ◽  
Vol 699 ◽  
pp. 134322 ◽  
Author(s):  
Christina Nannou ◽  
Anna Ofrydopoulou ◽  
Eleni Evgenidou ◽  
David Heath ◽  
Ester Heath ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Aquatic Environment ◽  
Wastewater Treatment Plants ◽  
Antiviral Drugs
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