Your search found 10 records
1 Fukuda, H. 1976. Irrigation in the world: Comparative developments. Tokyo, Japan: University of Tokyo Press. ix, 329p.
(Location: IWMI-HQ Call no: 631.7.8 G000 FUK Record No: H01222)
2 Chisholm, M. 1992. Demographic trends: implications for the use of water. In ODA. Proceedings of the Conference on Priorities for Water Resources Allocation and Management: Natural Resources and Engineering Advisers Conference, Southampton, UK, July 1992. London, UK: ODA. pp.5-12.
(Location: IWMI HQ Call no: 333.91 G000 ODA Record No: H012205)
(Location: IWMI-HQ Call no: 333.91 G000 REV Record No: H023288)
(Location: IWMI-HQ Call no: P 8102 Record No: H044941)
(0.90 MB) (919KB)
5 Sato, T.; Qadir, Manzoor; Yamamoto, S.; Endo, T.; Zahoor, A. 2013. Global, regional, and country level need for data on wastewater generation, treatment, and use. Agricultural Water Management, 130:1-13. [doi: https://doi.org/10.1016/j.agwat.2013.08.007]
(Location: IWMI HQ Call no: e-copy only Record No: H046106)
(1.23 MB)
Irrigation with wastewater supports agricultural production and the livelihoods of millions of smallholder farmers in many parts of the world. Considering the importance of better wastewater management at the local and national levels, there is a need for updated national data on wastewater generation, treatment, and use, which would also assist in regional and global wastewater assessments. While searching data and literature in published or electronic forms for 181 countries, we find that only 55 countries have data available on all three aspects of wastewater – generation, treatment, and use. The number of countries with one or two aspects of wastewater generation, treatment, and use is 69, while there is no information available from 57 countries. Of the available information, only 37% of the data could be categorized as recent (reported during 2008–2012). The available data suggest that high-income countries on average treat 70% of the generated wastewater, followed by upper-middle-income countries (38%), lower-middle-income countries (28%), and low-income countries, where only 8% of the wastewater generated is treated. The availability of current information on wastewater generation, treatment, and use is crucially important for policy makers, researchers, and practitioners, as well as public institutions, to develop national and local action plans aiming at safe and productive use of wastewater in agriculture, aquaculture, and agroforestry systems. The country level information aggregated at the regional and global levels would help in identifying the gaps in pertinent data availability and assessing the potential of wastewater in food, feed, and fish production at different scales.
6 Biggs, E. M.; Boruff, B.; Bruce, E.; Duncan, J. M. A.; Haworth, B. J.; Duce, S.; Horsley, J.; Curnow, Jayne; Neef, A.; McNeill, K.; Pauli, N.; Van Ogtrop, F.; Imanari, Y. 2014. Environmental livelihood security in Southeast Asia and Oceania: a water-energy-food-livelihoods nexus approach for spatially assessing change. White paper. Colombo, Sri Lanka: International Water Management Institute (IWMI). 114p. [doi: https://doi.org/10.5337/2014.231]
(Location: IWMI HQ Call no: IWMI Record No: H046758)
(5 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H046371)
(8.69 MB) (14.1 MB)
(Location: IWMI HQ Call no: IWMI Record No: H046987)
(992 KB)
9 FAO; IFAD; UNICEF; WFP; WHO. 2019. The state of food security and nutrition in the world 2019: safeguarding against economic slowdowns and downturns. Rome, Italy: FAO. 212p.
(Location: IWMI HQ Call no: e-copy only Record No: H049261)
(8.68 MB) (8.68 MB)
(Location: IWMI HQ Call no: e-copy only Record No: H049500)
(1.44 MB)
There is a proactive interest in recovering water, nutrients and energy from waste streams with the increase in municipal wastewater volumes and innovations in resource recovery. Based on the synthesis of wastewater data, this study provides insights into the global and regional “potential” of wastewater as water, nutrient and energy sources while acknowledging the limitations of current resource recovery opportunities and promoting efforts to fast-track highefficiency returns. The study estimates suggest that, currently, 380 billion m3 (m3 = 1,000 L) of wastewater are produced annually across the world which is a volume fivefold the volume of water passing through Niagara Falls annually. Wastewater production globally is expected to increase by 24% by 2030 and 51% by 2050 over the current level. Among major nutrients, 16.6 Tg (Tg = million metric ton) of nitrogen are embedded in wastewater produced worldwide annually; phosphorus stands at 3.0 Tg and potassium at 6.3 Tg. The full nutrient recovery from wastewater would offset 13.4% of the global demand for these nutrients in agriculture. Beyond nutrient recovery and economic gains, there are critical environmental benefits, such as minimizing eutrophication. At the energy front, the energy embedded in wastewater would be enough to provide electricity to 158 million households. These estimates and projections are based on the maximum theoretical amounts of water, nutrients and energy that exist in the reported municipal wastewater produced worldwide annually. Supporting resource recovery from wastewater will need a step-wise approach to address a range of constraints to deliver a high rate of return in direct support of Sustainable Development Goals (SDG) 6, 7 and 12, but also other Goals, including adaptation to climate change and efforts in advancing “netzero” energy processes towards a green economy.
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