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WASTEWATER IRRIGATION AND HEALTH. Assessing and Mitigating Risk in Low-income Countries

Earthscan, IWMI, IDRC

Titre : WASTEWATER IRRIGATION AND HEALTH. Assessing and Mitigating Risk in Low-income Countries

Auteur(s) : Pay Drechsel, Christopher A. Scott, Liqa Raschid-Sally, Mark Redwood, and Akiça Bahri
Editeur(s)  : Earthscan, IWMI, IDRC
Date de parution : 2010
Pages : 432

In most developing countries wastewater treatment systems have very low coverage or function poorly, resulting in large-scale water pollution and the use of poor-quality water for crop irrigation, especially in the vicinity of urban centres. This can pose significant risks to public health, particularly where crops are eaten raw. Wastewater Irrigation and Health approaches this serious problem from a practical and realistic perspective, addressing the issues of health risk assessment and reduction in developing country settings. The book therefore complements other books on the topic of wastewater which focus on high-end treatment options and the use of treated wastewater.

This book moves the debate forward by covering also the common reality of untreated wastewater, greywater and excreta use. It presents the state-of-the-art on quantitative risk assessment and low-cost options for health risk reduction, from treatment to on-farm and off-farm measures, in support of the multiple barrier approach of the 2006 guidelines for safe wastewater irrigation published by the World Health Organization. The 38 authors and co-authors are international key experts in the field of wastewater irrigation representing a mix of agronomists, engineers, social scientists and public health experts from Africa, Asia, Europe, North America and Australia. The chapters highlight experiences across the developing world with reference to various case studies from sub-Saharan Africa, Asia, Mexico and the Middle East. The book also addresses options for resource recovery and wastewater governance, thus clearly establishes a connection between agriculture, health and sanitation, which is often the missing link in the current discussion on ‘making wastewater an asset’. Dans la plupart des pays en développement, les systèmes de traitement des eaux usées sont très peu étendus ou sont peu efficaces, ce qui engendre une pollution de l’eau à vaste échelle et l’utilisation d’eau de mauvaise qualité pour l’irrigation des cultures, notamment à proximité des centres urbains. Cela pose de grands risques pour la santé publique, en particulier lorsque la production est consommée crue.

International Development Research Centre (IDRC/CRDI)

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Page publiée le 10 janvier 2013, mise à jour le 8 août 2018