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Title: Urban growth, wastewater production and use in irrigated agriculture: a comparative study of Accra, Addis Ababa and Hyderabad
Authors: Van Rooijen, Daniel J.
Biggs, Trent W.
Smout, Ian K.
Drechsel, Pay
Keywords: Urban growth
Wastewater use
Water scarcity
Urban water balance
Developing countries
Issue Date: 2010
Publisher: © Springer Science+Business Media B.V.
Citation: VAN ROOIJEN, D.J. ... et al, 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), pp. 53-64.
Abstract: 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.
Description: This article was published in the journal, Irrigation and Drainage Systems [© Springer Science+Business Media B.V.] and the definitive version is available at: http://www.springerlink.com/content/e749744553628469/fulltext.html
Version: Accepted for publication
DOI: 10.1007/s10795-009-9089-3
URI: https://dspace.lboro.ac.uk/2134/6084
ISSN: 0168-6291
Appears in Collections:Published Articles (WEDC)

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