Hydrometeorological characterization and estimation of landfill leachate generation in the Eastern Amazon/Brazil

Abstract

The complex physical-chemical and microbiological composition of leachate in sanitary landfills sets the adequate treatment for different waste types. However, before the final disposal of wastes in receptor waterbodies, it is essential to use specific methods to quantitatively prevent internal flows to find proper treatments. The aim of the present research is to use hydrological models to estimate monthly leachate flow generation in Macapá’s Municipal Sanitary Landfill (ASMM), Amapá State, Brazil. Disregarding the temporal trend bias, the average (0.45 m3s−1), minimum (0.07 m3s−1) and maximum (0.72 m3s−1) flows were estimated based on hydrological models in the literature (Rmax = 99%, p 10 years), since it could influence its lifespan.

Keywords

• Hydric balance
• Precipitation
• Flow
• Leachate
• Evaporation
• Hydrological processes