Potential Lateral Migration of Leachate in Flushing Bioreactor Landfills during Aggressive Leachate Recirculation

Abstract

Although there are advantages of bioreactor landfills over traditional sanitary landfills, the operation of bioreactor landfills is not without problems. A number of operational problems may arise when leachate is either diverted laterally or perched above low permeability layers within a landfill cell. This paper presents results from laboratory studies undertaken to determine the effects of the presence of daily/intermediate covers constructed of low permeable soils on leachate migration within a flushing bioreactor landfill. The quantities of leachate diverted laterally under a variety of soil-waste interface conditions were determined using a laboratory-scale flume of dimensions