How should urban water be priced? – An empirical analysis for the city of Mekelle, Ethiopia

2016 ◽  
Vol 14 (4) ◽  
pp. 409-415
Author(s):  
Tafesse W. Gezahegn ◽  
Xueqin Zhu
Author(s):  
Erik Swyngedouw

In recent years, an impressive body of work has emerged in the wake of the resurgence of the environmental question on the political agenda, addressing the environmental implications of urban change or issues related to urban sustainability (Haughton and Hunter 1994; Satterthwaite 1999). In many, if not all, of these cases, the environment is defined in terms of a set of ecological criteria pertaining to the physical milieu. Both urban sustainability and the environmental impacts of the urban process are primarily understood in terms of physical environmental conditions and characteristics. We start from a different position. As explored in Chapter 1, urban water circulation and the urban hydrosocial cycle are the vantage points from which the urbanization process will be analysed in this book. In this Chapter, a glass of water will be my symbolic and material entry point into an—admittedly somewhat sketchy—attempt to excavate the political ecology of the urbanization process. If I were to capture some urban water in a glass, retrace the networks that brought it there and follow Ariadne’s thread through the water, ‘I would pass with continuity from the local to the global, from the human to the nonhuman’ (Latour 1993: 121). These flows would narrate many interrelated tales: of social and political actors and the powerful socio-ecological processes that produce urban and regional spaces; of participation and exclusion; of rats and bankers; of water-borne disease and speculation in water industry related futures and options; of chemical, physical, and biological reactions and transformations; of the global hydrological cycle and global warming; of uneven geographical development; of the political lobbying and investment strategies of dam builders; of urban land developers; of the knowledge of engineers; of the passage from river to urban reservoir. In sum, my glass of water embodies multiple tales of the ‘city as a hybrid’. The rhizome of underground and surface water flows, of streams, pipes and networks is a powerful metaphor for processes that are both social and ecological (Kaïka and Swyngedouw 2000). Water is a ‘hybrid’ thing that captures and embodies processes that are simultaneously material, discursive, and symbolic.


Grundwasser ◽  
2021 ◽  
Author(s):  
Sara Vassolo ◽  
Christian Tiberghien ◽  
Christoph Neukum ◽  
Désiré Baranyikwa ◽  
Melchior Ryumeko ◽  
...  

AbstractDue to population growth, the city of Gitega in the central part of Burundi is lacking drinking water. Therefore, the national urban water supply company decided to expand the Nyanzari wellfield by drilling additional wells.Two additional wells were drilled to 80 m (F7.2) and 85 m (F8bis) depths. Step tests followed by 72-hours aquifer tests were performed in each well. Results indicate bilinear flow followed by linear flow and radial flow in F7.2. No reaction was observed in observation wells. Fracture-matrix transmissivity was estimated at 3 · 10−4 m2/s. In the case of F8bis, linear flow in an infinite flow fracture followed by radial flow was visible. Reaction was measured in observation wells. Transmissivity was estimated at 3.3 · 10−3 m2/s.Both wells lie no more than 300 m apart, but no evidence of interference between them was depicted during the tests. It appears that two independent fracture systems prevail in the wellfield.


ILUMINURAS ◽  
2020 ◽  
Vol 21 (55) ◽  
Author(s):  
Cristhian Fernando Caje Rodriguez

Resumo: El aumento constante de residuos sólidos urbanos en las aguas de Florianópolis y Amsterdam es algo que preocupa a deportistas y aficionados al remo. El agua es un elemento omnipresente en el paisaje urbano de estas dos ciudades, lo que las convierte en lugares ideales para remar. Sin embargo, el aumento constante de residuos sólidos es un problema que se agrava cada día en el día a día de la ciudad. El presente trabajo se desarrolló a partir del intercambio académico con la Frive Universiteit Amsterdam, hecho posible por el programa Capes / Nuffic, como doctorado sanduíche y trata de comprender las diferentes respuestas que se dan a esta problemática en estos contextos económicamente desiguales.Palabras clave: Remo. Ciudad. saneamiento. aguas “THE ROWING, OUR SPORT, REQUIRES CLEAN WATER”. INNOVATIVE EXPERIENCES IN URBAN WATER SANITATION BETWEEN FLORIANÓPOLIS AND AMSTERDAM ROWING CLUBS  Abstract: The constant increase in solid urban waste in the waters of Florianópolis and Amsterdam is something that worries athletes and rowing enthusiasts. Water is an omnipresent element in the urban landscape of these two cities, making them ideal places for rowing. However, the constant increase in solid waste is a problem that is getting worse every day in the daily life of the city. The present work was developed from the academic exchange with the Frive Universiteit Amsterdam, made possible by the Capes/Nuffic program, as a sanduíche doctorate and tries to understand the different responses that are given to this problem in these economically unequal contexts. Keywords: Rowing. City. sanitation. waters


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