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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 7 (Page no: 81)

National assessments on wastewater use in agriculture and an emerging typology: the Vietnam case study.

The use of urban wastewater in agriculture is a common practice for diverse reasons, not least of which are water scarcity, fertiliser value, and lack of an alternative source of water. It is necessary to have a clear understanding of wastewater's importance and significance in terms of extent, agricultural production, and livelihood impacts before appropriate policies, strategies and guidelines for its use in an integrated water management framework are developed. The Vietnam nationwide assessment was the pioneer in a series of such assessments being undertaken by the International Water Management Institute (IWMI). Findings indicate that 75% of domestic wastewater in large cities and 45% in smaller cities are discharged into sewers. Wastewater is used for agriculture or aquaculture in 93% of the cities. On an average wastewater is used in at least 2% of the agricultural land around most cities, predominantly to grow rice. The nationwide total of such irrigation is conservatively estimated at around 9,000 ha. Wastewater aquaculture is carried out in natural ponds which serve the dual purpose of inundation control and as collection sinks for city wastewater. Wastewater agriculture provides a primary or secondary source of income to 1% of the urban population. The corresponding figure for wastewater aquaculture is 0.1%. Factors that influence the use of wastewater in non water-short regions have emerged, showing a possible pattern of wastewater use under these conditions. A key result from this study is the need for a typology that effectively captures all these characteristics, as a prerequisite for a global assessment.

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: 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. 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.

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