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CABI Book Chapter

Wastewater use in irrigated agriculture: confronting the livelihood and environmental realities.

Book cover for Wastewater use in irrigated agriculture: confronting the livelihood and environmental realities.

Description

This book contains 16 chapters aiming to better understand urban waste water use in agriculture in developing countries (Africa, the Middle East, Latin America and Asia), and detailed case study documentation of what works and what does not. It makes pragmatic recommendations aimed at protecting both the public health and farmers' income. This volume will be of significant interest to those workin...

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Chapter 10 (Page no: 113)

Untreated wastewater use in market gardens: a case study of Dakar, Senegal.

Urban vegetable production in Dakar plays a significant role in fighting poverty, as it provides both income to farmers, and a source of nutritious food for the poor. However, the irrigation of these crops is cause for concern, as many farmers prefer untreated wastewater to freshwater due to the higher profits stemming from its greater availability, reduced fertiliser costs, and higher yields and production. While using such water, few take precautions to protect their health, and 60% are infected with intestinal parasites. The practice also poses a risk to public health, as three of the main crops produced (lettuce, tomatoes, and onions) are often or exclusively eaten raw. Thus, while there is a growing willingness among policymakers to encourage urban agriculture (UA), there is also the recognition that current irrigation practices are unsafe. Authorities looking to decentralise wastewater treatment need reassurance that community-level systems can be proven efficient and sustainable. It is recommended that action research be conducted that includes finding effective treatment systems, and that tests the feasibility of other management options such as increasing public awareness, using safer irrigation methods, and practising restricted irrigation. Additional research on the economic importance of UA is also necessary to encourage donors to fund research and development initiatives. Ultimately, action must be taken soon, or a repeat of the 1987 typhoid epidemic in Dakar could lead to backlash among consumers and policy-makers, with devastating consequences for both poor farmers and poor consumers.

Other chapters from this book

Chapter: 1 (Page no: 1) Wastewater use in irrigated agriculture: management challenges in developing countries. Author(s): Scott, C. A. Faruqui, N. I. Raschid-Sally, L.
Chapter: 2 (Page no: 11) A framework for a global assessment of the extent of wastewater irrigation: the need for a common wastewater typology. Author(s): Hoek, W. van der
Chapter: 3 (Page no: 25) A sustainable livelihoods approach for action research on wastewater use in agriculture. Author(s): Buechler, S. J.
Chapter: 4 (Page no: 41) Health guidelines for the use of wastewater in agriculture: developing realistic guidelines. Author(s): Carr, R. M. Blumenthal, U. J. Mara, D. D.
Chapter: 5 (Page no: 59) A fresh look at microbial guidelines for wastewater irrigation in agriculture: a risk-assessment and cost-effectiveness approach. Author(s): Fattal, B. Lampert, Y. Shuval, H.
Chapter: 6 (Page no: 69) Wastewater irrigation - hazard or lifeline? Empirical results from Nairobi, Kenya and Kumasi, Ghana. Author(s): Cornish, G. A. Kielen, N. C.
Chapter: 7 (Page no: 81) National assessments on wastewater use in agriculture and an emerging typology: the Vietnam case study. Author(s): Raschid-Sally, L. Doan Doan Tuan Sarath Abayawardana
Chapter: 8 (Page no: 91) Wastewater use in Pakistan: the cases of Haroonabad and Faisalabad. Author(s): Ensink, J. H. J. Simmons, R. W. Hoek, W. van der
Chapter: 9 (Page no: 101) Agricultural use of untreated urban wastewater in Ghana. Author(s): Keraita, B. N. Drechsel, P.
Chapter: 11 (Page no: 127) Wastewater irrigation in Vadodara, Gujarat, India: economic catalyst for marginalised communities. Author(s): Vaibhav Bhamoriya
Chapter: 12 (Page no: 135) The use of wastewater in Cochabamba, Bolivia: a degrading environment. Author(s): Huibers, F. P. Moscoso, O. DurĂ¡n, A. Lier, J. B. van
Chapter: 13 (Page no: 145) Treatment plant effects on wastewater irrigation benefits: revisiting a case study in the Guanajuato River basin, Mexico. Author(s): Silva-Ochoa, P. Scott, C. A.
Chapter: 14 (Page no: 153) From wastewater reuse to water reclamation: progression of water reuse standards in Jordan. Author(s): McCornick, P. G. Amal Hijazi Sheikh, B.
Chapter: 15 (Page no: 163) Treated wastewater use in Tunisia: lessons learned and the road ahead. Author(s): Shetty, S.
Chapter: 16 (Page no: 173) Confronting the realities of wastewater use in irrigated agriculture: lessons learned and recommendations. Author(s): Faruqui, N. I. Scott, C. A. Raschid-Sally, L.