Abstract
This work aims to assess the pollution generated by the leachate discharges produced at the landfill, which receives the waste collected in the towns of Mohammedia and Benslimane. Indeed, leachate discharges are a major source of contamination for the environment. Indeed, the leachate diagnosis allows on the one hand to estimate the pollutant load of the parameters (BOD5 - Biological oxygen demand, COD - Chemical oxygen demand, TSS - Total suspended solids) and on the other hand to prevent the biodegradability of the organic matter while determining the age of the leachate. This will then allow us to think about the technique that can be used to reduce pollution. The average leachate production is 146.84 m3 per day, the physico-chemical analyses carried out have shown high concentrations for chlorides, ammoniums, COD and BOD5 respectively of 6957.65, 4203.2, 37267.5 and 19000 mg∙L-1. The calculated pollutant loads exceed Moroccan standards in minerals composing the leachates, such as chlorides, nitrates, ammoniums, COD and BOD5 with concentrations respectively of 1,021.66, 8.18, 617.21, 5,472.4, 2.8 kg∙d-1.