Your search found 11 records
1 Van-Rooijen, Daniel J.; Turral, Hugh; Biggs, Trent. 2005. Sponge city: water balance of mega-city water use and wastewater use in Hyderabad, India; Erratum to the article. Irrigation and Drainage, 54(Supplement 1):S81-S91; 54(4):483.
Wastewater ; Irrigated farming ; Water balance ; Runoff / India / Hyderabad / Krishna River / Musi River
(Location: IWMI-HQ Call no: PER Record No: H037447)
2 Drechsel, Pay; Van-Rooijen, Daniel J.. 2008. Water privatization in Ghana. Nepad Business & Investment Guide, 4: 108-111.
(Location: IWMI HQ Call no: IWMI 363.61 G200 DRE Record No: H040968)
3 Van-Rooijen, Daniel J.; Drechsel, Pay. 2008. Exploring implications of urban growth scenarios and investments for water supply, sanitation, wastewater generation and use in Accra, Ghana. Paper presented at the 33rd WEDC International Conference, "Access to sanitation and safe water: global partnerships and local actions," Accra, Ghana, 7-11 April 2008. 6p.
(Location: IWMI HQ Call no: IWMI 363.61 G200 VAN Record No: H041197)
http://wedc.lboro.ac.uk/conferences/pdfs/33/Van_ROOIJEN2_GHA.pdf
https://vlibrary.iwmi.org/pdf/H041197.pdf
https://vlibrary.iwmi.org/pdf/H041197.pdf
Large cities in developing countries are challenged to meet steeply water demands and to dispose of wastewater safely in a context of urbanisation and poor insufficient water management and planning capacities. Urban water management has direct implications for water availability and sewage disposal in terms of quality and quantity. Studying the future implications and assessing the scale of impact of these processes starts with an understanding of the various water flows, supply and sewage infrastructure and uses of the water that is supplied to the city. It is argued that changes in water infrastructure and household water use and sanitation facilities at the city level has implications for upstream supply and demand management and downstream wastewater management. This paper explores this research area with a focus on Accra in Ghana. It is argued that the current situation in Accra shows a need and potential for improvement of water supply and wastewater treatment, however, through ways that do not require more concrete pipes.
4 Van-Rooijen, Daniel J.; Spalthoff, D.; Raschid-Sally, Liqa. 2008. Domestic water supply in Accra: how physical and social constraints to planning have greater consequences for the poor. Paper presented at the 33rd WEDC International Conference, "Access to sanitation and safe water: global partnerships and local actions," Accra, Ghana, 7-11 April 2008. 5p.
Water supply ; Water distribution ; Planning ; Constraints ; Water demand ; Domestic water ; Cost recovery ; Surveys / Ghana / Accra
(Location: IWMI HQ Call no: IWMI 363.61 G200 VAN Record No: H041198)
http://wedc.lboro.ac.uk/conferences/pdfs/33/Van_Rooijen_D_GHA.pdf
https://vlibrary.iwmi.org/pdf/H041198.pdf
https://vlibrary.iwmi.org/pdf/H041198.pdf
Water supply and distribution in Accra is challenged by a mix of technical, institutional and social constraints. In a complex context, many reasons help explain why water supply is not meeting demand at both the city as well as area level. This paper describes the water situation in Accra and in two distinctive areas, characterised by the presence or absence of piped water distribution infrastructure. Access to domestic water and reliability is much worse in these areas and consumers generally spend between 4 and 18 times the normal tariff that is charged to consumers with direct access to piped water. The social and physical constraints to planning are affecting the poor more than the rich in terms of access and affordability. It is proposed to Accra’s water managers that ensuring a small increase in water infrastructure will allow for better access to water for commercialisation by SWE’s, breaking the monopoly, and in turn lowering water prices substantially for the poor.
5 Van-Rooijen, Daniel J.; Turral, Hugh; Biggs, T. W. 2009. Urban and industrial water use in the Krishna Basin, India. Irrigation and Drainage, 58(4):406-428. [doi: https://doi.org/10.1002/ird.439]
River basins ; Water use ; Domestic water ; Urbanization ; Industrialization ; Water power ; Energy ; Electricity supplies ; Irrigation water ; Models ; Impact assessment ; Water demand ; Water use efficiency / India / Krishna River Basin
(Location: IWMI HQ Call no: IWMI 333.9162 G635 VAN Record No: H041493)
(0.33 MB)
Regional urbanization and industrial development require water that may put additional pressure on available water resources and threaten water quality in developing countries. In this study we use a combination of census statistics, case studies, and a simple model of demand growth to assess current and future urban and industrial water demand in the Krishna Basin in southern India.Water use in this ‘‘closed’’ basin is dominated by irrigation (61.9 billion cubic metres (BCM) yr1) compared to a modest domestic and industrialwater use (1.6 and 3.2BCMyr1). Totalwater diversion for non-irrigation purposes is estimated at 7–8% of available surface water in the basin in an average year. Thermal power plants use the majority of water used by industries (86% or 2.7 BCM yr1), though only 6.8% of this is consumed via evaporation. Simple modelling of urban and industrial growth suggests that non-agricultural water demand will range from 10 to 20 BCM by 2030. This is 14–28% of basin water available surface water for an average year and 17–34% for a year with 75% dependable flow. Although water use in the Krishna Basin will continue to be dominated by agriculture, water stress, and the fraction of water supplies at risk of becoming polluted by urban and industrial activity, will become more severe in urbanized regions in dry years.
6 Norstrom, A.; Owusu, Eric Sarpong; Van-Rooijen, Daniel J.. 2008. Sanitation challenges for a new municipal assembly in the Greater Accra Region, Ghana. Paper presented at the IRC Symposium, Sanitation for the Urban Poor, Partnerships and Governance, Delft, The Netherlands, 19-21 November 2008. 14p.
Sanitation ; Waste management ; Urbanization ; Poverty ; Population growth ; Stakeholders ; Local government / Ghana / Accra region / Adentan Municipality
(Location: IWMI HQ Call no: e-copy only Record No: H041816)
http://www.irc.nl/redir/content/download/140133/433468/file/Norstrom-A%20final_Jan09.doc
https://vlibrary.iwmi.org/pdf/H041816.pdf
https://vlibrary.iwmi.org/pdf/H041816.pdf
Accra, the capital of Ghana, is one of the fastest growing cities in West Africa and the boundaries of urban Accra have long since expanded beyond the administrative borders of Accra Metropolitan Area. One way to deal with the fast growing population in some areas has been to create new administrative units, i.e. divide large administrative enclaves into smaller ones. Consequently, Adenta Municipal Assembly (AdMA) is since February 2008 a municipality in its own right. An interview-based study was performed with stakeholders from the Assembly and sanitation providers in the Municipality to understand perceptions of sanitation challenges in the area. From the stakeholders’ perspective, one of the greatest challenges is the attitude of residents, making public education and awareness raising regarding the connection between sanitation, behaviour and health pertinent in remedial actions. Capacity building, logistics and human resources are mentioned as challenging areas that the new Assembly need to develop further. More efficient service delivery and competitive involvement of the private sector is also asked for.
7 Van-Rooijen, Daniel J.; Taddesse, G. 2009. Urban sanitation and wastewater treatment in Addis Ababa in the Awash Basin, Ethiopia. Paper presented at the 34th WEDC International Conference, Water, Sanitation and Hygiene: Sustainable Development and Multisectoral Approaches, Addis Ababa, Ethiopia, 18-22 May 2009. 6p.
Water management ; Urbanization ; Sanitation ; Irrigation water ; Drinking water ; Wastewater treatment ; River basins ; Water quality ; Water pollution ; Health hazards ; Pollution control / Ethiopia / Addis Ababa / Awash Basin
(Location: IWMI HQ Call no: e-copy only Record No: H042261)
http://wedc.lboro.ac.uk/resources/conference/34/Van_Rooijen_D_-_95.pdf
https://vlibrary.iwmi.org/pdf/H042261.pdf
https://vlibrary.iwmi.org/pdf/H042261.pdf
(0.38 MB) (682KB)
Improvement of sanitation facilities and subsequent practices is considered to contribute to overall human development with far reaching benefits for the welfare of people. It can reduce wastewater flows when treatment capacities are upgraded, but it can also create a higher load of wastewater flowing into the environment downstream. Additional sanitary water requirements in a water scarce city may be difficult to meet. In this paper we explore the scale of impact of improving sanitation in Addis Ababa in terms of water quality and quantity of water flows in and out of the city. Conventional approaches to sanitary improvement at the city level, like extension of the sewage coverage and upgrading of wastewater treatment capacities will require additional water in a city that is already water scarce. Also, it will change the characteristics of irrigation water that is used by farmers in and around the city.
8 Gebre, G.; Van Rooijen, Daniel J.. 2009. Urban water pollution and irrigated vegetable farming in Addis Ababa. Paper presented at the 34th WEDC International Conference, Water, Sanitation and Hygiene: Sustainable Development and Multisectoral Approaches, Addis Ababa, Ethiopia, 18-22 May 2009. 6p.
Waste management ; Pollution control ; Water pollution ; Water quality ; Rivers ; Public health ; Waterborne diseases ; Health hazards ; Chemical contamination ; Biological contamination ; Urban agriculture ; Wastewater irrigation ; Vegetables ; Income / Ethiopia / Addis Ababa / Akaki Rivers
(Location: IWMI HQ Call no: e-copy only Record No: H042262)
http://wedc.lboro.ac.uk/resources/conference/34/Gebre_G_-_166.pdf
https://vlibrary.iwmi.org/pdf/H042262.pdf
https://vlibrary.iwmi.org/pdf/H042262.pdf
(0.11 MB) (270.97KB)
Water pollution can be considered as a side-effect of economic growth and is a common phenomenon in fast growing cities in developing countries. This paper describes the situation in Addis Ababa by tracing the origins of pollution and by portraying urban and peri-urban farmers who depend on polluted water sources for irrigated agriculture. Discharge of untreated effluent from industries, solid wastes and wastewater from households and institution, are the major sources of pollution of the rivers flowing through the city. For existing industries, pollution control mechanisms such as discharge permits and limits to the disposal of effluents into the environment should be enforced. The local and state governments should enhance public sensitization programs on hygiene, sanitation and environmental issues.
9 Van-Rooijen, Daniel J.. 2009. Urbanization, water demand and sanitation in large cities of the developing world: an introduction to studies carried out in Accra, Addis Ababa and Hyderabad. Paper presented at WWW-YES 2009: 8th World Wide Workshop for Young Environmental Scientists - Urban water: resources and risks, a developing countries perspective, Paris, France, 2-5 June 2009. 6p.
Urbanization ; Water demand ; Water supply ; Sanitation ; Models ; Sustainable development ; Developing countries / Africa / Ghana / Ethiopia / Asia / India / Accra / Addis Ababa / Hyderabad
(Location: IWMI HQ Call no: e-copy only Record No: H042679)
http://hal.archives-ouvertes.fr/docs/00/59/30/05/PDF/10-WWW-YES-2009-France-Van-Rooijen-paper.pdf
https://vlibrary.iwmi.org/pdf/H042679.pdf
https://vlibrary.iwmi.org/pdf/H042679.pdf
(0.09 MB)
Water managers in large cities in developing countries experience great difficulties in providing proper water supply and sanitation services in a context of rapidly growing population with changing water use patterns, structural lack of capacity and resources. There is a need for in-depth city-wise water assessments of fast growing large cities in developing countries to help gain insight into the implications of urban water and sanitation development scenarios on urban water demand, wastewater disposal and downstream water use. The generation of reliable data sets and modeling results for a selection of cities will help understand the present and future impact that water use has on water resources and flows that cross the urban-rural divide. Also, an easy-to use model can support decision making at the local urban water planning and policy level. This paper describes ongoing research on the urban water system in three fast growing cities in the South. The application of integrated urban water management in developing countries is needed for the sustainable management of water resources within the city and basin.
10 Van-Rooijen, Daniel J.; Biggs, T. W.; Smout, I.; Drechsel, Pay. 2010. Urban growth, wastewater production and use in irrigated agriculture: a comparative study of Accra, Addis Ababa and Hyderabad. Irrigation and Drainage Systems, 24(1-2):53-64 (Special issue with contributions by IWMI authors) [doi: https://doi.org/10.1007/s10795-009-9089-3]
Wastewater irrigation ; Water balance ; Water scarcity ; Urban agriculture ; Developing countries / Ghana / Ethiopia / India / Accra / Addis Ababa / Hyderabad
(Location: IWMI HQ Call no: PER Record No: H042832)
http://www.springerlink.com/content/e749744553628469/fulltext.pdf
https://vlibrary.iwmi.org/pdf/H042832.pdf
https://vlibrary.iwmi.org/pdf/H042832.pdf
(0.22 MB)
The relationships between urban development, water resources management and wastewater use for irrigation have been studied in the cities of Accra in Ghana, Addis Ababa in Ethiopia and Hyderabad in India. Large volumes of water are extracted from water sources often increasingly far away from the city, while investments in wastewater management are often lagging behind. The resulting environmental degradation within and downstream of cities has multiple consequences for public health, in particular through the use of untreated wastewater in irrigated agriculture. Despite significant efforts to increase wastewater treatment, options for safeguarding public health via conventional wastewater treatment alone remain limited to smaller inner-urban watersheds. The new WHO guidelines for wastewater irrigation recognize this situation and emphasize the potential of post- or non-treatment options. Controlling potential health risks will allow urban water managers in all three cities to build on the benefits from the already existing (but largely informal) wastewater reuse, those being the contribution to food security and reduction of fresh water demands.
11 Raschid-Sally, Liqa; Van-Rooijen, Daniel J.. 2010. Prospects for resource recovery through wastewater reuse. In Kurian, M.; McCarney, P. (Eds.). Peri-urban water and sanitation services: policy, planning and method. New York, NY, USA: Springer. pp.63-89.
Water scarcity ; Water allocation ; Urban areas ; Water use ; Water reuse ; Wastewater irrigation ; Risks ; Health hazards ; Sanitation
(Location: IWMI HQ Call no: 363.61 G000 KUR Record No: H043405)
(2.49 MB)
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