2019 ◽  
Vol 53 (19) ◽  
pp. 11066-11079 ◽  
Author(s):  
Heidy Cruz ◽  
Ying Yu Law ◽  
Jeremy S. Guest ◽  
Korneel Rabaey ◽  
Damien Batstone ◽  
...  

Water ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 423 ◽  
Author(s):  
Encarnación Moral Pajares ◽  
Leticia Gallego Valero ◽  
Isabel Román Sánchez

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.


1999 ◽  
Vol 39 (4) ◽  
pp. 257-268 ◽  
Author(s):  
Peter A. Vanrolleghem ◽  
Wolfgang Schilling ◽  
Wolfgang Rauch ◽  
Peter Krebs ◽  
Hans Aalderink

The steps of calibration/confirmation of models in a suggested 11-step procedure for analysis, planning and implementation of integrated urban wastewater management systems is focused upon in this paper. Based on ample experience obtained in comprehensive investigations throughout Europe recommendations have been formulated for design of measuring campaigns. The inclusion of iteration in the overall planning of measuring campaigns is advised and the use of preliminary sensitivity analysis is shown to allow maximisation of information retrieval from experimental efforts. Case studies covering problems related to suspended solids, specific contaminants, hygienic hazards and total pollutant loss illustrate the recommendations presented.


2020 ◽  
Vol 17 (4) ◽  
pp. 97-103
Author(s):  
Kaushik Ghosh ◽  
Arup Sarkar

Urban wastewater management is a crucial challenge in the small and medium towns situated in the developing countries worldwide. These towns are also facing an increasing gap between infrastructure and population growth. A conventional approach to curb these problems is the application of cost-intensive electro-mechanical sewerage technologies, as adopted in developed countries. The first part of this paper derives a set of indicators to framework a sustainable urban wastewater treatment system by reviewing the current state of wastewater management in developing countries, for example, the sample case study being India. The second part evaluates the potential performance of the proposed alternative in-situ hydroponic vetiver system (HVS) against those set of sustainability indicators by reviewing the worldwide performance of the HVS. The objective of this paper is to assess the potential viability of the HVS as a sustainable and cost-effective alternative for developing countries. The current analysis can aid in mainstreaming the use of HVS in policy making and urban planning.


2017 ◽  
Vol 28 ◽  
pp. 287-296 ◽  
Author(s):  
Anne-Katrin Skambraks ◽  
Hamse Kjerstadius ◽  
Malina Meier ◽  
Åsa Davidsson ◽  
Maika Wuttke ◽  
...  

2011 ◽  
Vol 26 (6) ◽  
pp. 689-696 ◽  
Author(s):  
Javier Murillo ◽  
Dídac Busquets ◽  
Jordi Dalmau ◽  
Beatriz López ◽  
Víctor Muñoz ◽  
...  

2003 ◽  
Vol 48 (1) ◽  
pp. 57-65 ◽  
Author(s):  
C. Pahl-Wostl ◽  
A. Schönborn ◽  
N. Willi ◽  
J. Muncke ◽  
T.A. Larsen

The technology of urine separation and the recycling of anthropogenic nutrients as fertilizer in agriculture are considered as major innovations to improve the sustainability of today's urban wastewater management. The acceptance of consumers will be key for the introduction of the new technology. Citizens will have to make important decisions in their role as tenants and owners of houses and as consumers buying products fertilized with urine. Consumer attitudes towards the new technology were explored in a number of citizen focus groups in Switzerland. Focus groups are deliberate, moderated group discussions with informed citizens on a certain topic. The information was provided by a computer based information system specifically designed for this purpose. The acceptance of individual citizens for the new technology proved to be quite high. The majority of the citizens expressed their willingness to move into an apartment with NoMix toilets and to buy food fertilized with urine. However, they were not willing to accept additional financial costs or efforts. Arguments related to long-term sustainability (closing nutrient cycles) were of less importance than arguments that relate directly to the effects of micropollutants on human and ecosystem health. For the introduction of the new technology on a wide scale it will thus be crucial to explore the fate and effects of micropollutants.


2014 ◽  
Vol 989-994 ◽  
pp. 5575-5579
Author(s):  
Jian Cheng Kang ◽  
Hai Lin ◽  
Jiong Zhu ◽  
Guo Dong Yan

In 1981~2012, the general urban wastewater in Shanghai was between 1.775~2.420 billion tons. Among the urban wastewater, the industrial wastewater emissions before 1988 was more than 1.4 billion tons, then, it was declining to about 649 million tons at 2002, a low value in the past 30 years, less than 50% of the 1980s. The percentage of industrial wastewater in the total urban wastewater discharge is falling from 76.9% in 1981 to under 30% in recent years. The living wastewater emissions increased from 424 million tons in 1981 to 1.697 billion tons in 2012. There is a relationship between the living wastewater increasing and the increase of the permanent residents in Shanghai. At the same time, the living wastewater emissions per capita per day were significantly increased from 100 kg (liter) around 1980s to around 190 kg (liter) in recent years. From 1995, the treatment and management of urban wastewater was continuing to intensify in Shanghai. The ratio of wastewater treating has increasing from 6.35% in 1995 to 85.62% of the total urban wastewater in 2012. Comparing the social-economic development and management of wastewater discharge in Shanghai, it can be seen, the wastewater emissions increasing amplitude was far less than the sizes of population growth and economic growth in the past 30 years


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