Leachate Ammonia Flushing from Landfill Simulators

Abstract

The operational management of landfills is currently being reviewed in the UK and Europe. In the UK, the 'flushing bioreactor' approach to landfilling involves (a) enhancing microbially mediated degradation of domestic waste to promote rapid waste stabilization, (b) increased methane recovery, and (c) reduced timescales to final landfill stabilization. Flushing operations under bioreactive conditions could be used to optimize the removal of ammoniacal nitrogen from landfilled waste. In this study, the flushing of ammonia from pulverized domestic waste was investigated using laboratory-scale test cells to simulate landfill conditions. A simple mathematical model, based on test-cell water balance, was used to describe the latter stages of ammonia reduction.

The Effect of Advanced Oxidation Processes on Leachate Biodegradation in Recycling Lysimeters

“…• Nitrogen and sulphate attenuation within the landfill (Onay and Pohland 2001). • Leachate ammonia flushing from landfill simulators (Purcell et al 1999). • Ozonation and recirculation of the leachate (Beaman et al 1998).…”