A Vision for Urban Water and Wastewater Management in 2050

2012 ◽  
pp. 166-174 ◽  
Author(s):  
Glen T. Daigger
2010 ◽  
Vol 10 (4) ◽  
pp. 618-628 ◽  
Author(s):  
A. N. Angelakis ◽  
D. S. Spyridakis

The evolution of urban water management in ancient Greece begins in Crete during the Middle Bronze and the beginning of the Late Bronze Ages (ca. 2000–1500 B.C.) when many remarkable developments occurred in several stages as Minoan civilization flourished on the island. One of its salient characteristics was the architectural and hydraulic function of its water supply and sewerage systems in the Minoan Palaces and several other settlements. These technologies, though they do not give a complete picture of water supply and wastewater and storm water technologies in ancient Greece, indicate nevertheless that such technologies have been used in Greece since prehistoric times. Minoan water and wastewater technologies were diffused to the Greek mainland in the subsequent phases of Greek civilization, i.e. in the Mycenaean, Archaic, Classical, Hellenistic and Roman periods. The scope of this article is the presentation of the most characteristic forms of ancient hydraulic works and related technologies and their uses in past Greek civilizations.


2017 ◽  
Author(s):  
Chloé Meyer

This layer shows limits pose by challenges and capacities to African cities. Although the main challenges in terms of magnitude exist in the larger cities, these are also relatively better-placed in terms of institutional and economic capacity to address the problems through economies of scale. Most smaller cities lack this advantage and clearly need to focus on capacity-building as a necessary step towards improving their water and wastewater management systems. For more information, acces the 2017 UN World Water Development Report: http://www.unesco.org/new/en/natural-sciences/environment/water/wwap/wwdr/2017-wastewater-the-untapped-resource/ Capacity-Building Human settlements Waste


Author(s):  
Les Dawes ◽  
Jim Reeves

The increasing scarcity of water in the world, along with rapid population increase in urban areas, gives reason for concern and highlights the need for integrating water and wastewater management practices. The uncontrolled growth in urban areas has made planning, management and expansion of water and wastewater infrastructure systems very difficult and expensive. In order to achieve sustainable wastewater treatment and promote the conservation of water and nutrient resources, this chapter advocates the need for a closed-loop treatment system approach, and the transformation of the traditional linear treatment systems into integrated cyclical treatment systems. The recent increased understanding of integrated resource management and a shift towards sustainable management and planning of water and wastewater infrastructure are also discussed.


2002 ◽  
Vol 46 (9) ◽  
pp. 1-9 ◽  
Author(s):  
Z. Ujang ◽  
C. Buckley

This paper summarises the paper presentation sessions at the Conference, as well giving insights on the issues related to developing countries. It also discusses the present status of practice and research on water and wastewater management, and projected future scenario based not only on the papers presented in the Conference, but also on other sources. The strategy is presented to overcome many problems in developing countries such as rapid urbanization, industrialization, population growth, financial and institutional problems and, depleting water resources. The strategy consists of Integrated Urban Water Management (IUWM), cleaner industrial production, waste minimisation and financial arrangements.


Water Policy ◽  
2005 ◽  
Vol 7 (5) ◽  
pp. 523-541 ◽  
Author(s):  
M. Montginoul ◽  
J-D. Rinaudo ◽  
Y. Lunet de Lajonquière ◽  
P. Garin ◽  
J-P. Marchal

Recent studies on urban water demand have suggested that the water price increase observed during the last ten years in France has led to a reduction in the consumption of urban water by households. Whereas certain households have reduced their water consumption, others have turned to substitute water resources (collection of rainwater, borehole drilling, wells supplied with untreated mains water, grey water recycling systems, etc.). This article presents the results of a case study, which describes and analyses the phenomenon of resorting to untreated groundwater as a complement to or a substitute for the urban water supply. After highlighting the risks associated with uncontrolled development of private boreholes, the paper presents a survey conducted in Southern France to understand the motivations of households drilling boreholes. The results of this survey are utilised to develop a micro-economic model of households' behaviour, which is then used to assess the probability of development of private boreholes on a regional scale. The impact of various economic and regulatory scenarios on borehole development and the related impact on urban water demand and financial sustainability of water and wastewater management utilities are assessed.


2003 ◽  
Vol 3 (1-2) ◽  
pp. 469-476
Author(s):  
S.R.A. Soares ◽  
R.S. Bernardes

The sanitary problems promoted by the rapid urbanization process in developing cities are usually resulted from the absence of planning, high population concentration and inadequate water and wastewater infrastructure for low income people. Because the provision and planning of water supply and is a complex task, a modeling approach was used to enhance the understanding of the process and the aspects involved. In the development of a model, not only the technical aspects were taken into account, but other aspects related to the provision of drinking water and the water resources protection were also analyzed, such as institutional, financial, socioeconomic, environmental and public health. In the modeling process two different methods of conceptualization were used to describe the urban water flow through the water and wastewater systems linked to various aspects related to their implementation in large developing cities. The urban water systems of five large metropolitan areas in Brazil were also evaluated for the complete model. It is expected that the modeling approach developed in this paper consists of a valuable methodology for water supply and sanitation planning in Brazilian cities, and other developing cities with the same characteristics. The suggested conceptual model could, at least, provide more than a starting point for a useful urban water management tool.


Water ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1023
Author(s):  
Asensio Navarro Ortega ◽  
Rafael Burlani Neves

This paper focuses on the legal and institutional framework of urban water services in Spain, emphasizing water sanitation by using proposals that would positively contribute to wastewater management in Brazil. The recent Brazilian Federal Law No. 14,026/20 aims to encourage investment in water sanitation, promoting public-private collaboration formulas so that service management is viable even in economically less-favored regions. In Spain, sanitation policies are aimed at fulfilling the set of obligations and objectives imposed by European Union Directives within the environmental policies of the Union. From an economic point of view, supply and sanitation water services are classified at European legal framework as “services of general economic interest” (SGEI), not subject to harmonized regulation and open to a natural monopoly provision regime, which they admit various types of management formulas, public and private, based on the ownership and public intervention of the service, both at national and European level. We believe that the Spanish experience in this field, beyond its singularities, can serve as a useful reference for Brazilian’s urban wastewater new regulation for several reasons: (1) Because of the decentralized political scheme that both countries share and the need to articulate an adequate system of competencies in consequence; (2) Because of the international experience that Spanish companies have at the sector’s technological forefront, they are very competitive; (3) Due to the adequate functioning of the Spanish legal and organizational framework since, despite its shortcomings, as we later will comment, it has managed to develop successful financing formulas and management models that, in general terms, have allowed to ensure with reasonable efficiency, continuity, stability and sustainability in the provision of urban water services.


Sign in / Sign up

Export Citation Format

Share Document