Critical review for the quantification of leachate production: Evaluation example for the “Oum Azza” public landfill in Rabat city, Morocco

Abstract

The estimation of leachate quantities produced in landfills is necessary to dimension the treatment plants allowing to reduce the polluting load of these effluents and consequently avoid their negative impacts on the environment. Different leachate quantification methods were used in this study to assess the leachate volume produced at the Oum Azza landfill. The water balance method give comparable estimations of leachate production to the Ouled Berjal landfill ratio. The first method showed average values between 487 and 495 m3/day for 2015, 2018, and 2019, and at the same time, the second method gave values between 470 and 477 m3/day for the same years. In contrast, the World Bank ratio showed high values that vary between 2260 and 2295 m3/day for 2015, 2018, and 2019. The on‐site data and the statistical analysis showed us that the World Bank ratio is not adapted for the estimation of the leachates produced in Oum Azza landfill, while the water balance and the ratio of Ouled Berjal landfill allowed to give comparable results to reality.

Assessing Potential of Biogas: Harnessing Sustainable Energy from Biomass for Renewable Solutions (Review)

“…Technological innovation is a key driver of research in the field of biogas potential assessment, with ongoing efforts to optimize biogas production processes, enhance process efficiency, and develop novel biogas upgrading technologies. Advances in digester design, substrate pretreatment methods, and biogas purification techniques are enabling the expansion of biogas production and utilization [56] ( Bouyakhsass et al, 2023). Policy frameworks and regulatory mechanisms governing biogas production and utilization are also significant themes in the literature, with research focusing on the role of government incentives, subsidies, and renewable energy targets in driving renewable energy adoption and promoting sustainable development.…”

Response Surface Methodology Approach to Optimize Parameters for Coagulation Process Using Polyaluminum Chloride (PAC)

“…As shown in Figure 6b, the turbidity was set at 12.5 mg/L, and the influence of different pH and PAC dosage on turbidity removal was oval, indicating that the interaction between pH and PAC dosage was obvious. Bouyakhsass et al found that the interactions between coagulant dose and pH have a significant effect on turbidity reduction [44]. When the dosage was 18.84~28.84 mg/L and the pH was 7.2~8.4, the residual turbidity after coagulation was low.…”