Billions of people currently lack clean water and sanitation. By 2050 the global population will have grown to nearly 10 billion, over two-thirds of whom will live in urban areas. This Voices asks: what are the research and water-management priorities to ensure clean water and sanitation in the w...
Jamwal, P.
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Brown, R.
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Kookana, R.
,
Drechsel, Pay
,
McDonald, R.
,
Vorosmarty, C.J.
,
Vliet, M.T.H. van
,
Bhaduri, Anik
,
[The future of urban clean water and sanitation]
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The future of urban clean water and sanitation
When urban areas expand without concomitant increases in wastewater treatment capacity, vast quantities of wastewater are released to surface waters with little or no treatment. Downstream of many urban areas are large areas of irrigated croplands reliant on these same surface water sources. Case...
The concern for the well-being of land is often directly related to one's proximity to the land, be it physically, economically or culturally. Land is more precious if one's livelihood depend on it immediately than if one is merely a visitor. Land is valued differently if it is the base of one's ...
Vlek, Paul L.G.
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Tamene, Lulseged
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Martius, Christopher
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Lamers, J,P.A.
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Drechsel, Pay
,
Ziadat, Feras M.
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Le, Quang Bao
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Mirzabaev, Alisher
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Nkonya, Ephraim M.
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Lynden, Godert van
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Whitbread, Anthony M.
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Akhtar-Schuster, Mariam
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Kizito, Fred
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Winowiecki, Leigh A.
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Cofie, Olufunke O.
,
[Land degradation and the Sustainable Development Goals: Threats and potential remedies.]
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Land degradation and the Sustainable Development Goals: Threats and potential remedies.
Many urban farmers in Accra collect irrigation water from streams and open drains, which they store in small, on-farm ponds before use. Given that this water can be highly contaminated with wastewater, another potential role of the ponds is to disinfect irrigation water prior to use. To better un...
Silverman, A.I.
,
Akrong, M.O.
,
Drechsel, Pay
,
[On-farm treatment of wastewater used for vegetable irrigation: bacteria and virus removal in small ponds in Accra, Ghana]
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On-farm treatment of wastewater used for vegetable irrigation: bacteria and virus removal in small ponds in Accra, Ghana
The role of urban agriculture in global food security is a topic of increasing discussion. Existing research on urban and peri-urban agriculture consists largely of case studies that frequently use disparate definitions of urban and peri-urban agriculture depending on the local context and study ...
Thebo, A.L.
,
Drechsel, Pay
,
Lambin, E.F.
,
[Global assessment of urban and peri-urban agriculture: irrigated and rainfed croplands]
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Global assessment of urban and peri-urban agriculture: irrigated and rainfed croplands
The dissipation and persistence of endosulfan (6,7,8,9,10,10-hexachloro-1,5,5a,6,9,9a-hexahydro- 6,9-methano-2,4,3-benzodioxathiepin 3-oxide) applied to field-grown tomato (Lycopersicon esculentum) were studied at a vegetable-growing location in Ghana. Plant tissue samples and cropped soil collec...
Ntow, W.J.
,
Ameyibor, J.
,
Kelderman, P.
,
Drechsel, Pay
,
Gijzen, H.J.
,
[Dissipation of endosulfan in field-grown tomato (Lycopersicon esculentum) and cropped soil at Akumadan, Ghana]
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Dissipation of endosulfan in field-grown tomato (Lycopersicon esculentum) and cropped soil at Akumadan, Ghana
In the present study, the concentrations of persistent organochlorine (OC) pesticides such as dichlorodiphenyltrichloroethane and its metabolites (DDTs), hexachlorocyclohexane isomers (HCHs), hexachlorobenzene (HCB) and dieldrin in pooled samples of human breast milk (n ? 109), and serum (n ? 115...
Ntow, W.J.
,
Tagoe, L.M.
,
Drechsel, Pay
,
Kelderman, P.
,
Gijzen, H.J.
,
Nyarko, E.
,
[Accumulation of persistent organochlorine contaminants in milk and serum of farmers from Ghana]
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Accumulation of persistent organochlorine contaminants in milk and serum of farmers from Ghana
Co-composted dewatered faecal sludge (FS) with organic fractions of municipal solid waste (MSW) has a high potential to be used as an agricultural resource in Sri Lanka. In addition to options for cost recovery in waste management, closing the nutrient and carbon cycles between urban and rural ar...
Grau, Felix
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Drechsel, Nikita
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Haering, V.
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Trautz, D.
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Weerakkody, W.J.S.K.
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Drechsel, Pay
,
Marschner, B.
,
Dissanayake, D.M.P.S.
,
Sinnathamby, V.
,
[Impact of fecal sludge and municipal solid waste co-compost on crop growth of Raphanus Sativus L. and Capsicum Anuum L. under stress conditions]
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Impact of fecal sludge and municipal solid waste co-compost on crop growth of Raphanus Sativus L. and Capsicum Anuum L. under stress conditions