Occurrence of microplastics at Wastewater Treatment Plants in the Guadalete-Barbate river basin (Cadiz, Spain).

2021 ◽  
Author(s):  
Ana Amelia Franco del Pino ◽  
Gemma Albendín ◽  
Juana María Arellano ◽  
Ágata Egea-Corbacho Lopera ◽  
Ana Pilar Martín García ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
River Basin ◽  
Aquatic Environment ◽  
Wastewater Treatment Plants ◽  
Geographical Area ◽  
Aquatic Environments

<p>The increase in microplastics (MPs) research has aroused awareness about their presence and polluting potential in aquatic environments. Wastewater treatment plants (WWTPs) have been identified as one of the main paths for these pollutants to reach the environment. The present study is focussed in the WWTPs emplaced within the Guadalete-Barbate river basin. This geographical area comprises a total of 60 WWTPs treatment plants with an inhabitant equivalent (IE) above 250. Within these 60 wastewater treatment plants, there are 38 plants with conventional treatments and an estimated population of over 800,000. The high percentage of population that lives in this basin leads us to think about the quantity of microplastics that are dumped into the environment daily. Therefore, the aim of this research is to study the occurrence and identify the type of microplastics in these facilities, this information is important in order to design treatments that improve microplastics removal and avoid their entrance in the aquatic environment.</p>

scholarly journals Broad diversity of bacteria degrading 17ß-estradiol-3-sulfate isolated from river sediment and biofilm at a wastewater treatment plant discharge

2021 ◽  
Author(s):  
Tamara Mainetti ◽  
Marilena Palmisano ◽  
Fabio Rezzonico ◽  
Blaž Stres ◽  
Susanne Kern ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
River Sediment ◽  
Wastewater Treatment Plants ◽  
Treatment Plant ◽  
Aquatic Environments ◽  
Bacterial Isolates ◽  
Degrading Bacteria ◽  
17Β Estradiol ◽  
Aquatic Wildlife ◽  
Harmful Effects

AbstractConjugated estrogens, such as 17β-estradiol-3-sulfate (E2-3S), can be released into aquatic environments through wastewater treatment plants (WWTP). There, they are microbiologically degraded into free estrogens, which can have harmful effects on aquatic wildlife. Here, the degradation of E2-3S in environmental samples taken upstream, downstream and at the effluent of a WWTP was assessed. Sediment and biofilm samples were enriched for E2-3S-degrading microorganisms, yielding a broad diversity of bacterial isolates, including known and novel degraders of estrogens. Since E2-3S-degrading bacteria were also isolated in the sample upstream of the WWTP, the WWTP does not influence the ability of the microbial community to degrade E2-3S.

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

scholarly journals The Role of Urban Wastewater in the Environmental Transmission of Antimicrobial Resistance: The Current Situation in Italy (2010–2019)

2020 ◽  
Vol 8 (10) ◽  
pp. 1567
Author(s):  
Francesco Triggiano ◽  
Carla Calia ◽  
Giusy Diella ◽  
Maria Teresa Montagna ◽  
Osvalda De Giglio ◽  
...  
Keyword(s):  
Antibiotic Resistance ◽  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Geographical Area ◽  
National Level ◽  
Antibiotic Resistance Genes ◽  
Resistant Bacteria ◽  
Urban Wastewater ◽  
New Treatment ◽  
Urban Wastewater Treatment

Scientific studies show that urban wastewater treatment plants (UWWTP) are among the main sources of release of antibiotics, antibiotic resistance genes (ARG) and antibiotic-resistant bacteria (ARB) into the environment, representing a risk to human health. This review summarizes selected publications from 1 January 2010 to 31 December 2019, with particular attention to the presence and treatment of ARG and ARB in UWWTPs in Italy. Following a brief introduction, the review is divided into three sections: (i) phenotypic assessment (ARB) and (ii) genotypic assessment (ARG) of resistant microorganisms, and (iii) wastewater treatment processes. Each article was read entirely to extract the year of publication, the geographical area of the UWWTP, the ARB and ARG found, and the type of disinfection treatment used. Among the ARB, we focused on the antibiotic resistance of Escherichia coli, Klebsiella pneumoniae, and Enterococci in UWWTP. The results show that the information presented in the literature to date is not exhaustive; therefore, future scientific studies at the national level are needed to better understand the spread of ARB and ARG, and also to develop new treatment methods to reduce this spread.

scholarly journals Membrane Processes for Microplastic Removal

Molecules ◽  
2019 ◽  
Vol 24 (22) ◽  
pp. 4148 ◽  
Author(s):  
Poerio ◽  
Piacentini ◽  
Mazzei
Keyword(s):  
Wastewater Treatment ◽  
Aquatic Environment ◽  
Wastewater Treatment Plants ◽  
Membrane Bioreactors ◽  
Human Beings ◽  
Plastic Pollution ◽  
Membrane Processes ◽  
Continuous Increase ◽  
Treatment Technologies ◽  
Concrete Solution

Plastic pollution of the aquatic environment is a major concern considering the disastrous impact on the environment and on human beings. The significant and continuous increase in the production of plastics causes an enormous amount of plastic waste on the land entering the aquatic environment. Furthermore, wastewater treatment plants (WWTPs) are reported as the main source of microplastic and nanoplastic in the effluents, since they are not properly designed for this purpose. The application of advanced wastewater treatment technologies is mandatory to avoid effluent contamination by plastics. A concrete solution can be represented by membrane technologies as tertiary treatment of effluents in integrated systems for wastewater treatment, in particular, for the plastic particles with a smaller size (< 100 nm). In this review, a survey of the membrane processes applied in the plastic removal is analyzed and critically discussed. From the literature analysis, it was found that the removal of microplastic by membrane technology is still insufficient, and without the use of specially designed approaches, with the exception of membrane bioreactors (MBRs).

Legionella prevalence in wastewater treatment plants of Taiwan

2009 ◽  
Vol 60 (5) ◽  
pp. 1303-1310 ◽  
Author(s):  
S. W. Huang ◽  
B. M. Hsu ◽  
P. H. Ma ◽  
K. T. Chien
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Domestic Wastewater ◽  
Aquatic Environments ◽  
Human Pathogens ◽  
Wastewater Systems

Legionella is a bacterium that is ubiquitous in natural and artificial aquatic environments. Some species of Legionella are recognized as opportunistic potential human pathogens. We investigated the distribution of Legionella at seventeen WWTPs throughout Taiwan. Legionella were detected in 10 of the 17 WWTPs (58.8%) and 25 of 41 samples (61.0%). In the integrated, hospital, industrial and domestic wastewater systems were 13/18 (72.2%), 7/12 (58.3%), 2/7 (28.6%) and 3/4 (75.0%) of the samples were positive for Legionella, respectively. The most frequently encountered species were L. donaldsonii and uncultured L. spp., which were both found in 10 samples (24.4% of all samples), then followed by L. lytica (4.9%) and L. pneumophila (4.9%). L. anisa was detected in one sample (2.4%). The results of this survey confirm that Legionella are ubiquitous in WWTPs in Taiwan. Therefore, long-term investigations should be conducted to evaluate the overall occurrence of Legionella in WWTPs in Taiwan.

scholarly journals A Beginner’s Guide to Water Management — Bacteria

EDIS ◽  
1969 ◽  
Vol 2004 (4) ◽  
Author(s):  
Florida LAKEWATCH
Keyword(s):  
Water Management ◽  
Wastewater Treatment ◽  
Aquatic Environment ◽  
Bacterial Contamination ◽  
Wastewater Treatment Plants ◽  
Laboratory Methods ◽  
Step Process ◽  
Septic Tanks ◽  
Or Groups ◽  
The Subject

This 44-page booklet starts with a brief tutorial on the presence of bacteria in Florida lakes, and the aquatic environment in general, and then quickly turns to the subject that lake users are most interested in: possible sources of bacterial contamination and how to test for it. The discussion includes a comparison of the effectiveness of wastewater treatment plants versus septic tanks. Also, indicators used for detecting bacterial contamination are explained, along with basic laboratory methods. Lastly, an easy 4-step process is provided for tracking down bacterial contamination in a waterbody. Laboratory suppliers are listed at the end for individuals or groups interested in doing their own bacterial sampling. This document, CIR106, is the sixth of a series of information circulars dedicated to familiarizing citizens with the language and techniques used by those involved in water management. February 2003 © 1st Edition. CIR106/FA103: A Beginner's Guide to Water Management?Bacteria (ufl.edu)

scholarly journals Wpływ oczyszczalni ścieków na redukcję zanieczyszczeń odprowadzanych w czeskiej części dorzecza Odry

2020 ◽  
Vol 29 (2) ◽  
pp. 123-135
Author(s):  
Libor Ansorge ◽  
Elžbieta Čejka ◽  
Jiří Dlabal ◽  
Lada Stejskalová
Keyword(s):  
Wastewater Treatment ◽  
River Basin ◽  
Municipal Wastewater ◽  
Water Footprint ◽  
Wastewater Treatment Plants ◽  
Point Sources ◽  
Municipal Wastewater Treatment ◽  
Best Available Technologies ◽  
Environmental Objectives ◽  
Odra River

Surface water pollution is referred to be a problem in the entire Odra river basin. In sub-basins, an insufficient degree of wastewater treatment has been identified as a major problem – in relation to the best available technologies and environmental objectives of Directive 2000/60/EC. The grey water footprint indicator was used to express the influence of point sources of pollution (industrial and municipal wastewater treatment plants) on discharged pollution reduction in the Czech part of the international Odra river basin. The number of 391 records of wastewater treatment plants for the period 2004–2018 was analysed. The results show that the wastewater treatment plants reduce by up to 92% the potential water needs for dilution of pollution discharged into waters in the Czech part of the Odra river basin.

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