scholarly journals Modelling and Adaptive Control of Urban Wastewater Treatment Plants

1977 ◽  
Vol 10 (7) ◽  
pp. 459-465
Author(s):  
Christopher John Harris
Keyword(s):  
Wastewater Treatment ◽  
Adaptive Control ◽  
Wastewater Treatment Plants ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

Extractable Fractions of Metals in Sewage Sludges from Five Typical Urban Wastewater Treatment Plants of China

Pedosphere ◽  
2006 ◽  
Vol 16 (6) ◽  
pp. 756-761 ◽  
Author(s):  
Chao WANG ◽  
Xiao-Chen LI ◽  
Pei-Fang WANG ◽  
Li-Min ZOU ◽  
Hai-Tao MA
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Urban Wastewater ◽  
Sewage Sludges ◽  
Urban Wastewater Treatment

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.

Current situation of urban wastewater treatment plants in megacity Istanbul

Desalination ◽  
2009 ◽  
Vol 246 (1-3) ◽  
pp. 409-416 ◽  
Author(s):  
Idil Arslan-Alaton ◽  
Gulen Iskender ◽  
Aysegul Tanik ◽  
Melike Gurel ◽  
Suleyman Ovez ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Current Situation ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

scholarly journals A Mini-Review of Urban Wastewater Treatment in Greece: History, Development and Future Challenges

2020 ◽  
Vol 12 (15) ◽  
pp. 6133
Author(s):  
Charikleia Prochaska ◽  
Anastasios Zouboulis
Keyword(s):  
Wastewater Treatment ◽  
Environmental Sustainability ◽  
Rural Areas ◽  
Wastewater Treatment Plants ◽  
Treated Wastewater ◽  
Septic Tank ◽  
Urban Wastewater ◽  
Tourism Sector ◽  
Future Challenges ◽  
Urban Wastewater Treatment

Although Greece has accomplished wastewater infrastructure construction to a large extent, as 91% of the country’s population is already connected to urban wastewater treatment plants (WWTPs), many problems still need to be faced. These include the limited reuse of treated wastewater and of the surplus sludge (biosolids) produced, the relative higher energy consumption in the existing rather aged WWTPs infrastructure, and the proper management of failing or inadequately designed septic tank/soil absorption systems, still in use in several (mostly rural) areas, lacking sewerage systems. Moreover, the wastewater treatment sector should be examined in the general framework of sustainable environmental development; therefore, Greece’s future challenges in this sector ought to be reconsidered. Thus, the review of Greece’s urban wastewater history, even from the ancient times, up to current developments and trends, will be shortly addressed. This study also notes that the remaining challenges should be analyzed in respect to the country’s specific needs (e.g., interaction with the extensive tourism sector), as well as to the European Union’s relevant framework policies and to the respective international technological trends, aiming to consider the WWTPs not only as sites for the treatment/removal of pollutants to prevent environmental pollution, but also as industrial places where energy is efficiently used (or even produced), resources’ content can be potentially recovered and reused (e.g., nutrients, treated water, biosolids), and environmental sustainability is being practiced overall.

scholarly journals Cost of Urban Wastewater Treatment and Ecotaxes: Evidence from Municipalities in Southern Europe

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 423 ◽  
Author(s):  
Encarnación Moral Pajares ◽  
Leticia Gallego Valero ◽  
Isabel Román Sánchez
Keyword(s):  
Wastewater Treatment ◽  
Municipal Wastewater ◽  
Wastewater Treatment Plants ◽  
Methodological Approach ◽  
Economic Feasibility ◽  
Wastewater Management ◽  
Management Service ◽  
Southern Europe ◽  
Urban Wastewater ◽  
Urban Wastewater Treatment

The principle of cost recovery established by the Water Framework Directive underlines the need for tax rates, which can raise enough revenue to finance the cost of treatments applied to wastewater. The objective of this research is to gain an understanding the different types of charges related to urban wastewater treatment that can be levied by the authorities responsible for this service. This paper also aims to determine whether these taxes contribute to guaranteeing the economic feasibility of the wastewater treatment plants. The proposed methodological approach is applied to 18 municipalities of a province in southern Europe in 2017. The results confirm that in most of these cases, the taxes levied do not guarantee adequate tax revenues to cover the running, maintenance and investment costs of municipal wastewater treatment plants. This situation leads to a lack of financial self-sufficiency in the wastewater management service, meaning that the imbalance between income and expenditure has to be covered by government subsidies. The results of this study will help guide authorities around the world that are in charge of managing urban wastewater treatment services.

Parasite contamination of liquid sludge from urban wastewater treatment plants

2003 ◽  
Vol 47 (3) ◽  
pp. 163-166 ◽  
Author(s):  
J. Schwartzbrod ◽  
S. Banas
Keyword(s):  
Wastewater Treatment ◽  
Wastewater Treatment Plants ◽  
Urban Wastewater ◽  
North West ◽  
The North ◽  
Helminth Eggs ◽  
High Prevalence ◽  
Nematode Eggs ◽  
Low Charge ◽  
Urban Wastewater Treatment

This study was performed on sludge samples from 20 wastewater treatment plants located in the north west of France with capacities of 1,000-20,000 inhabitant equivalents. The types of treatment studied were activated sludge low charge with and without denitrification. Respectively, 110 samples of fresh sludge and 84 samples of discharged sludge for spreading were analysed. Globally 78.6% of samples contained helminth eggs belonging to the cestodes (6.1%) and nematodes (93.9%). Most of the nematode eggs detected were viable with 135 positive samples. The distribution, according to genera, indicated a high prevalence of Toxocara eggs (77.4%) followed by Capillaria (13.2%), Trichuris (8.1%) and Ascaris (1.3%). For viable nematode eggs, the concentrations detected ranged from <1 to 28/4 gDM for fresh sludge and from <1 to 9.6/4 gDM for discharged sludge.

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