The scarcity of conventional water resources and the deterioration of their quality, represent for Algeria in particular, under its arid semi-arid Mediterranean climate, a major worry and an important concern limiting the implementation of the water programs, aimed at the development and improvement of the service, which negatively affects the well-being of citizens and threatens the future of future generations. Despite his insufficiency, the use of this resource is multiple; domestic, agriculture, industry, tourism ... etc. According Zella.L, (2007), Algeria has a total mobilizable hydric potential not exceeding the 13.2 billion m3 of water, which gives an annual volume of 412 m3 for each citizen confused any use .This theoretical figure is an indicator of a situation of severe water shortage that hinders all the development of the country . The rationalization of the use of conventional water resources has become an imperative management. In this, and in the context of sustainable development, agricultural reuse of treated wastewater and sludge generated by the treatment appears to be an alternative for the preservation of water resources and the environment and the promotion of agriculture sector. It is around this axis as revolves this work, based primarily on the aptitude of treated wastewater and sewage sludge of WWTP of Medea to the reuse in agriculture. To do this, analyzes of these by-products were made at the laboratory level. The results obtained, projected and compared to the recommendations of FAO and WHO standards, revealed that: - The treated waters of the WWTP of Medea, despite their high salinity, are reusable for irrigation of salt-tolerant species and well-drained soil and leached. Their nitrate content is eligible and has no harmful effect. In cases of large doses, crops at multiple cuts and deep roots are very effective to consume nitrogen and prevent its accumulation in the soil and its migration. The high concentration of fecal coliforms , fact that these waters can not be used without chlorination. - The sewage sludge with a C/N of 7.32 constitutes an important availability and rapid mineralization of nitrogen, of which leaching may be avoided by land application of the latter during the plant growth. This report is related to the relatively low amount of organic matter that it contains, thus translating a stabilized sludge, Which can be considered a fertilizer, more than organic amendment

Evaluation of the fertiliser inputs of sludge and treated water of the city of Medea (Algeria)

BRUZZONITI, Maria Concetta;
2015-01-01

Abstract

The scarcity of conventional water resources and the deterioration of their quality, represent for Algeria in particular, under its arid semi-arid Mediterranean climate, a major worry and an important concern limiting the implementation of the water programs, aimed at the development and improvement of the service, which negatively affects the well-being of citizens and threatens the future of future generations. Despite his insufficiency, the use of this resource is multiple; domestic, agriculture, industry, tourism ... etc. According Zella.L, (2007), Algeria has a total mobilizable hydric potential not exceeding the 13.2 billion m3 of water, which gives an annual volume of 412 m3 for each citizen confused any use .This theoretical figure is an indicator of a situation of severe water shortage that hinders all the development of the country . The rationalization of the use of conventional water resources has become an imperative management. In this, and in the context of sustainable development, agricultural reuse of treated wastewater and sludge generated by the treatment appears to be an alternative for the preservation of water resources and the environment and the promotion of agriculture sector. It is around this axis as revolves this work, based primarily on the aptitude of treated wastewater and sewage sludge of WWTP of Medea to the reuse in agriculture. To do this, analyzes of these by-products were made at the laboratory level. The results obtained, projected and compared to the recommendations of FAO and WHO standards, revealed that: - The treated waters of the WWTP of Medea, despite their high salinity, are reusable for irrigation of salt-tolerant species and well-drained soil and leached. Their nitrate content is eligible and has no harmful effect. In cases of large doses, crops at multiple cuts and deep roots are very effective to consume nitrogen and prevent its accumulation in the soil and its migration. The high concentration of fecal coliforms , fact that these waters can not be used without chlorination. - The sewage sludge with a C/N of 7.32 constitutes an important availability and rapid mineralization of nitrogen, of which leaching may be avoided by land application of the latter during the plant growth. This report is related to the relatively low amount of organic matter that it contains, thus translating a stabilized sludge, Which can be considered a fertilizer, more than organic amendment
2015
Tunisian Days on The Water Sources Alternatives (TUWSA'15)
Mahdia, Tunisia
19-21 December 2015
Acts of Tunisian Days on The Water Sources Alternatives
40
41
Treated wastewater, sewage sludge, standards, reuse,
Kettab, A.; Karef, S.; Bruzzoniti, M.C.; Nakib, M.; Boujelben, N.; Mandi, L.; Del Bubba, M.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/1557603
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