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Drechsel, PayKeraita, B.[On-farm practices for the safe use of wastewater in urban and peri-urban horticulture: a training handbook for farmer field schools in Sub-Saharan Africa]On-farm practices for the safe use of wastewater in urban and peri-urban horticulture: a training handbook for farmer field schools in Sub-Saharan Africa

Thirsty and hungry cities are posing significant challenges for the urban-rural interface ranging from food security to inter-sectoral water allocation. Not only is the supply of resources to urban centres a growing challenge in low-income countries, but even more is the urban return flow, as inv...


Drechsel, PayKeraita, Bernard N.[Agriculture in the rural-urban continuum: a CGIAR research perspective]Agriculture in the rural-urban continuum: a CGIAR research perspective

Background: In Addis Ababa, where irrigation water for vegetable production is commonly derived from the highly polluted Akaki river, information on microbial contamination of water and irrigated vegetable is scanty. An assessment was done to determine the microbiological quality of irrigation wa...


Woldetsadik, D.Drechsel, PayKeraita, Bernard N.Itanna, F.Erko, B.Gebrekidan, H.[Microbiological quality of lettuce (Lactuca sativa) irrigated with wastewater in Addis Ababa, Ethiopia and effect of green salads washing methods]Microbiological quality of lettuce (Lactuca sativa) irrigated with wastewater in Addis Ababa, Ethiopia and effect of green salads washing methods

The use of wastewater to produce food crops particularly vegetables is very prevalent in Addis Ababa, Ethiopia. This practice may pose health risks to farm workers and consumers. Hence, the study was designed to evaluate farmers’ perceptions on irrigation water quality, health risks and health ri...


Woldetsadik, D.Drechsel, PayKeraita, Bernard N.Itanna, F.Gebrekidan, H.[Farmers’ perceptions on irrigation water contamination, health risks and risk management measures in prominent wastewater-irrigated vegetable farming sites of Addis Ababa, Ethiopia]Farmers’ perceptions on irrigation water contamination, health risks and risk management measures in prominent wastewater-irrigated vegetable farming sites of Addis Ababa, Ethiopia
Evans, A.Hanjra, Munir A.Jiang, Y.Qadir, ManzoorDrechsel, Pay[Water pollution in Asia: the urgent need for prevention and monitoring.]Water pollution in Asia: the urgent need for prevention and monitoring.
Mateo-Sagasta, JavierDrechsel, Pay[Water reuse in Africa and the sustainable development goals]Water reuse in Africa and the sustainable development goals
Mateo-Sagasta, JavierDrechsel, Pay[Improving water quality is an opportunity to avert a global crisis]Improving water quality is an opportunity to avert a global crisis

Most cities in developing countries fail to treat their wastewater comprehensively. Consequently, farmers downstream use poor-quality water for irrigation. This practice implies risks for farmers, consumers and the environment. Conversely, this water supply supports the livelihood of these farmer...


Saldias, C.Speelman, S.Drechsel, PayHuylenbroeck, G. van[A livelihood in a risky environment: farmers’ preferences for irrigation with wastewater in Hyderabad, India]A livelihood in a risky environment: farmers’ preferences for irrigation with wastewater in Hyderabad, India

Phosphorus (P) is a critical, geographically concentrated, nonrenewable resource necessary to support global food production. In excess (e.g., due to runoff or wastewater discharges), P is also a primary cause of eutrophication. To reconcile the simultaneous shortage and overabundance of P, lost ...


Mayer, B.K.Baker, L.A.Boyer, T.H.Drechsel, PayGifford, M.Hanjra, Munir A.[Total value of phosphorus recovery]Total value of phosphorus recovery

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