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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 13 (Page no: 145)

Treatment plant effects on wastewater irrigation benefits: revisiting a case study in the Guanajuato River basin, Mexico.

In 1999 field research was carried out to explore the advantages and risks of urban wastewater use for 140 ha of crop production in the Guanajuato River basin. It was found that wastewater which was freely available to the farmers represented an important additional source of irrigation water, with secondary benefits including nutrients and the foregone cost of wastewater treatment. In 2002, the urban water supply and sanitation utility, a financially autonomous public utility, began to operate an activated sludge wastewater treatment plant in response to the imposition of legally mandated fines for the release of untreated wastewater to open water bodies. As follow-up to the 1999 study, this chapter is based on field visits and interviews and sets out to qualitatively answer the following research question: Does the introduction of wastewater treatment influence the crop production benefits of wastewater irrigation? The study found that because wastewater treatment was oriented to comply with environmental regulations, little attention was paid to the links with the land irrigated by wastewater. The presence of the treatment plant provides the utility with the option of selling treated wastewater, thus increasing its own economic benefits. Industrial users appear to be the most suitable potential customers; the utility would stand to receive US$0.43/m3 in estimated sale price plus saving the US$0.25/m3 fine. This transfer of water would introduce competition among water-use sectors, a process that is already leading to wastewater farmers' uncertainty about their future share of irrigation water. However, to date no commercial transaction to transfer treated wastewater to non-agricultural users has taken place. For this reason the expected changes in impacts on wastewater farmers have been minimal. If this happens, however, the wastewater farmers stand to lose because only about 30% of the wastewater-irrigated land has a water concession title (linked to the land) issued by federal authorities.

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: 10 (Page no: 113) Untreated wastewater use in market gardens: a case study of Dakar, Senegal. Author(s): Faruqui, N. I. Niang, S. Redwood, M.
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. Durán, A. Lier, J. B. van
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.

Chapter details

  • Author Affiliation
  • Land and Water, José G. Alcaráz 1000, Lomas de Circunvalación, C.P. 28010, Colima, Mexico.
  • Year of Publication
  • 2004
  • ISBN
  • 9780851998237
  • Record Number
  • 20043115028