期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：5
页码：1354-1363
出版社：University of Mohammed Premier Oujda
摘要：The waste generated by domestic and industrial activities, set dumpsite pose a risk of contamination of the groundwater in the region Fkih Ben Salah flowing in aquifers composed of sand phosphates and phosphatic limestone. This consists mainly of organic matter (77.7%), and other waste such as tissues (6.1%), plastic and cardboard (5.1%), miscellaneous packaging (3.3 %), metals (1.8%) and the lenses (0.9%). Therefore, it is necessary to study the environmental problems of the discharge through an assessment of the risk generated by the discharge of pollutants on the surrounding environment and particularly on water resources. It is with this objective that fits the job. It consists of a physicochemical characterization o f leachate. The results of leachate analysis sho wed that the average value of pH is 4.7 (young leachate). The total hardness is 68.33 mg / l. Leachate is very rich in organic matter (BOD 5 equal to 6697mgO 2 / l), COD is 18026mgO 2 / l. The BOD 5 /COD ratio (0.34) is greater than 0.3 and marking a favorable biodegradability of leachate studied. Viewpoint mineral compo sition, leachate is rich in total nitrogen NTK (2361mg / l), total phosphorus (144mg / l), orthophosphate (100.95 mg / l), sulphate (1326.87 mg / l) and chloride ion (2051.11 mg / l). However, heavy metals in the composition of leachate is very important. Indeed, the concentrations of iron (59.03 mg / l) and zinc (8.59 mg / l) are abnormally high. As for copper and lead, their concentrations are on average 2 mg / l. Analysis of these results, it is necessary a hybrid treatment physicochemical means (precipitation, coagulation, electrocautery, etc ...) followed by a biological process (biofilter) to reduce the pollution load generated by the leachate.
关键词：leachate; COD; BOD5; heavy metals; Electrocoagulation; Biofilter; ground water.
