Emissions from mechanically-biologically treated waste landfills at field scale
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AuthorLópez Martínez, Ana; García Ortiz, Marta; Esteban García, Ana Lorena; Cuartas Hernández, Miguel; Molleda Riaño, Ancella; Lobo Garcia de Cortazar, Amaya
© Islamic Azad University (IAU). Published by Springer. "The final publication is available at Springer via http://dx.doi.org/10.1007/s13762-017-1497-6"
International Journal of Environmental Science and Technology volume 15, pages 1285–1300(2018)
Islamic Azad University
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Modern waste management tends towards greater sustainability in landfilling, with the implementation of strategies such as the pretreatment of solid waste. This work assesses the behaviour of rejects from a refining stage of mechanically-biologically treated municipal solid waste at the landfill. The main results of 18 months' monitoring of an experimental pilot cell with waste from a full-scale plant are presented. This first stages are expected to be the most problematic period for this type of waste. The evolution of the temperature and the composition of leachate and gas at various points within the cell are included. During the first weeks, pollutant concentrations in the leachate exceeded the reference ranges in the literature, coinciding with a rapid onset of methanogenic conditions. However, there was a quick wash, reducing concentrations to below one third of the initial values before the first year. pH values influenced concentrations of some pollutants such as copper. These results indicate that, right from the beginning of disposal, such facilities should be prepared to treat a high pollution load in the leachate and install the gas emissions control elements due to the rapid onset of methanogenesis.