Quantification of (bio)geochemical heterogeneous activity in full-scale landfills (abstract)

Quantification of (bio)geochemical heterogeneous activity in full-scale landfills (abstract)

Van Turnhout, A.G.
Heimovaara, T.J.
Kleerebezem, R.

Civil Engineering and Geosciences

Geoscience & Engineering

2012-12-31

The main focus of this paper is the assessment of landfill leachate/gas emissions and longterm prediction of these emissions. Due to variation in environmental conditions, like rainfall events, leachate concentrations are very dynamic on a short-time scale. The measured concentrations in the leachate oscillate between maximum and minimum concentrations. Our assumption is that the maximum concentrations occur under slow flow conditions when the leachate is in equilibrium with the relatively immobile water fraction present in the bulk of the waste. The minimum concentrations are the result of strong dilution during heavy rainfall events, where the bulk of the waste is by-passed due to preferential flow.. For accurate dataanalysis and further modeling it is important to obtain a good estimation of these two types of concentrations. With these two bounding concentration values the effectiveness of natural and induced landfill stabilization (by recirculation or aeration) can be monitored and assessed. In addition we aim to develop a method to predict long-term emissions in which these bounding concentration values play an important role.

http://resolver.tudelft.nl/uuid:379d7fbc-e18b-4380-a3a5-4bcee6337d95

Universitetstryckeriet

978-91-7439-462-7

Proceedings of the 7th Intercontinental Landfill Research Symposium (ICLRS), Sunderbyn, Sweden, 25-27 June 2012

Institutional Repository

conference paper

(c) 2012 The Author(s)