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 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 Fate and Removal of Pharmaceuticals and Illegal Drugs Present in Drinking Water and Wastewater

2017 ◽  
Vol 24 (1) ◽  
pp. 65-85 ◽  
Author(s):  
Anna Szymonik ◽  
Joanna Lach ◽  
Krystyna Malińska
Keyword(s):  
Drinking Water ◽  
Wastewater Treatment ◽  
Surface Water ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Rapid Development ◽  
Diclofenac Sodium ◽  
Clofibric Acid ◽  
Treated Wastewater ◽  
Illegal Drugs

Abstract Rapid development of pharmaceutical industry, and thus widespread availability of different types of therapeutical and increased intake of pharmaceuticals, results in elevated concentrations of pharmaceuticals in municipal wastewater subjected to treatment in wastewater treatment plants. Pharmaceuticals present in raw wastewater discharged from hospitals, households, veterinary and health care clinics eventually end up in wastewater treatment plants. Commonly applied methods for treating wastewater do not allow complete removal of these contaminants. As a consequence, pharmaceuticals still present in treated wastewater are introduced to water environment. The most frequently identified pharmaceuticals in surface water belong to the following groups: non steroidal anti inflammatory drugs, beta-blockers, estrogens and lipid regulators. The most difficult is removal of diclofenac, clofibric acid and carbamazepine as these substances show low biodegradability. Diclofenac can be removed in the process of wastewater treatment by 40%, carbamazepine by 10%, and clofibric acid from 26 to 50%. The presence of diclofenac sodium in the rivers in Poland was confirmed and the concentrations were following: 380 ng/dm3 (the Warta river), 470 ng/dm3 (the Odra river), 140 ng/dm3 (the Vistula river). Naproxene was found in the Warta river at the concentration of 100 ng/dm3. The presence of pharmaceuticals in surface water can be toxic to aqueous microorganisms and fish. Recent studies confirmed also the presence of pharmaceuticals in drinking water. This is considered as a problem especially in urban agglomerations such as Berlin or large cities in Spain and China. The studies showed that pharmaceuticals were also identified in the samples taken from the Polish rivers and drinking water. The presence of naproxene and diclofenac at the concentrations of 13 and 4 ng/dm3 was identified in drinking water sampled from water intakes in Poznan. Surface water and drinking water showed also the presence of illegal drugs.

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.

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.

APPLICATION OF ORGANIC FLOCCULANTS FOR THE TREATMENT OF SLUDGE FROM MUNICIPAL WASTEWATER TREATMENT PLANTS

2013 ◽  
Vol 12 (1) ◽  
pp. 163-166 ◽  
Author(s):  
Mariana Turcu ◽  
Valentin Nedeff ◽  
Narcis Barsan ◽  
Emilian Florin Mosnegutu ◽  
Mirela Panainte
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Municipal Wastewater Treatment ◽  
Municipal Wastewater Treatment Plants

A study about the use of chemicals in conventional tertiary treatment. Performances comparison of three municipal wastewater treatment plants and pilot plant experiences

2011 ◽  
Vol 6 (1) ◽  
Author(s):  
A. Iborra-Clar ◽  
J.A. Mendoza-Roca ◽  
A. Bes-Pií ◽  
J.J. Morenilla-Martínez ◽  
I. Bernácer-Bonora ◽  
...  
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Pilot Plant ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Secondary Effluent ◽  
Municipal Wastewater Treatment ◽  
Wastewater Reclamation ◽  
Valencian Region ◽  
Municipal Wastewater Treatment Plants

Rainfall diminution in the last years has entailed water scarcity in plenty of European regions, especially in Mediterranean areas. As a consequence, regional water authorities have enhanced wastewater reclamation and reuse. Thus, the implementation of tertiary treatments has become of paramount importance in the municipal wastewater treatment plants (WWTP) of Valencian Region (Spain). Conventional tertiary treatments consist of a physico-chemical treatment of the secondary effluent followed by sand filtration and UV radiation. However, the addition of coagulants and flocculants sometimes does not contribute significantly in the final water quality. In this work, results of 20-months operation of three WWTP in Valencian Region with different tertiary treatments (two without chemicals addition and another with chemicals addition) are discussed. Besides, experiments with a 2 m3/h pilot plant located in the WWTP Quart-Benager in Valencia were performed in order to evaluate with the same secondary effluent the effect of the chemicals addition on the final water quality. Results showed that the addition of chemicals did not improve the final water quality significantly. These results were observed both comparing the three full scale plants and in the pilot plant operation.

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