Groundwater management
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Type of National planObjectiveAdaptationSectorsCountryCambodia
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Type of National planObjectiveAdaptationSectorsCountryCambodia
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Type of National planObjectiveAdaptationSectorsCross-sectoral enablerCountryMauritius
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Type of National planObjectiveAdaptationSectorsCross-sectoral enablerCountrySri Lanka
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Type of National planObjectiveAdaptationSectorsCountryMorocco
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Type of National planObjectiveAdaptationSectorsCountryMauritius
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Background: Ion exchange is widely used within industry and public infrastructure to remove metallic organic or inorganic particles from water. Ion exchange filters contain activated carbon or spongy polymer beads called resin which have been tailored to remove a specific group of contaminants with similar chemistry. Hybrid ion exchange resins are capable of simultaneously removing multiple contaminant groups.
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ObjectiveTechnology
Unique particles derived from acrylonitrile or other materials which are capable of selectively absorbing uranyl from groundwater surface water and wastewater.Applications:This technology can be used to improve the quality of a water supply by safely effectively and inexpensively removing uranyl ions from the water. The presence of uranium in groundwater is a growing problem in the United States and one without effective treatment to date. These particles can also be used in portable field systems for analysis of uranyl content on site.
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ObjectiveTechnology
Chemical contaminants such as nitrogenous wastes found in aquacultures or groundwater may contaminate nearby areas and drinking water supplies. Groundwater pollution may be caused by activities such as industrial waste disposal accidental spills fuel tank leakage or application of fertilizers herbicides or pesticides to crops. Natural causes such as arsenic also may result in groundwater contamination. Organisms are a major cause of water and aqueous environment contamination and are one of the world’s largest health concerns.
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Publication date
This report describes how subsidized electricity has incentivized groundwater extraction in Haryana, India. The authors identify agricultural subsidies in general and then quantify the major irrigation, fertilizer and agricultural electricity subsidies. They find that, in “the basket of normalized electricity”, surface irrigation and fertilizer subsidies available to farmers in 2015, the largest share of subsidies went to electricity for groundwater extraction (51 per cent), followed by fertilizer subsidies (35 per cent).