Irrigation with treated wastewater and efficient fertilizer use
2007
Papadopoulos, I.
In the Near East countries, human population is increasing rapidly and the need for food and water is continually growing. Traditionally, the problem is being solved by increasing water supply and/or expanding agriculture. This solution, however, is nearing its limits. In a number of countries in the region the actual consumption of water is exceeding the renewable water resources. In this respect, wastewater reuse in irrigation became an essential factor for developing sound water and management policies. However, reliability of wastewater reuse, plus avoiding negative public health and environmental impacts, are of major concern. Wastewaters are unique in composition and their acceptability to replace more conventional or other non-conventional water sources for irrigation is highly dependent on whether the health risks and environmental impacts are within acceptable levels. This paper presents the benefits and the problems associated with wastewaters, and provideinformation on present use and future prospective uses of treated wastewaters for irrigation. Analysis of the value of treated wastewater as a source of plant nutrients is also presented.
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