Caractérisation physico-chimique du lixiviats de la décharge d’ouled berjal ( Kenitra, Maroc)

Due to the composition and their impact on the environment, landfill leachate is a serious environmental and public health problem. Our physicochemical and microbiological study has shown that leachate is highly loaded with minerals including iron, Mg, Cd, etc.) and pathogenic microorganisms hence the need for effective and sustainable treatment. Our present study enters this preoccupation we have highlighted a biological process allowing the transformation of leachate by way of fermentation, being based on leaven having fermenting, acidifying and antimicrobial power. Microbiological analysis showed that almost all the pathogenic flora was removed showing the biological treatment efficacy. In addition, the stable product obtained after 15 days of fermentation was used as a base in a formula of a bio-fertilizer. Application trials in different crops (wheat, peas, corn, etc.) have shown satisfactory results.

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The Highlighting of a Biological Process for the Treatment of Leachate from a Public Discharge

The infiltration of percolation of leachate from landfill waste is a source of pollution of groundwater resources. Threats are going to feel on the six components of the environment (air, soil, groundwater, plant, animal and human). This can be compounded at the time of water deficits. The landfill of Ouled Berjal is a standard model of deterioration of water resources. Leachate is contaminated; also water from agricultural practices, the result is the deterioration of groundwater quality. The depth of the water table is low (4 to 15m), so the contamination rate is fast. The analysis carried out on the samples of leachate generated by the landfill show significant average of nitrate concentrations (1518.10 mg / l), ammonium (55.37 mg / l), sodium (3577.60 mg / l), BOD5 (41.36 mg / l) COD (850.11 mg / l), sulfide (1626.71 mg / l) and chloride (7761.74 mg / l).

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Esamil Abeer

Papers

Analytical Evaluation of the water quality of the landfill leachate of KÃ©nitra, Morocco