Theoretical analysis of municipal solid waste treatment by leachate recirculation under anaerobic and aerobic conditions

Long-term emissions of Municipal Solid Waste (MSW) landfills are a burden for future generations because of the required long-term aftercare. To shorten aftercare, treatment methods have to be developed that reduce long-term emissions. A treatment method that reduces emissions at a lysimeter scale is re-circulation of leachate. However, its...

A toolbox to find the best mechanistic model to predict the behavior of environmental systems

Reliable prediction of the long-term behavior of environmental systems such as Municipal Solid Waste (MSW) landfills is challenging. While many driving forces influence this behavior, characterization of them is limited by measurement techniques. Therefore, a model structure for reliable prediction needs to optimally combine all measured...

Building a mechanistic biogeochemical reaction network for upscaling: Characterization of mass transport limitation between regions of hydrolysis and methanogenesis

In this study, we aim to validate the reaction network with an idealized experiment. We want to show that 1) rate controlling parameters are identifiable from the measured data by inverse modeling, and 2) that this network is able to predict the measured emissions in the experiment given the initial conditions. In the experiment, cabbage is used...

Investigating the impact of process parameters on aeration of MSW via a mechanistic biogeochemical reaction model

The aim of our study is to investigate previously mentioned aspects with scenario analyses via a mechanistic biogeochemical reaction network model that contains the emission controlling reactions. In order to find such a network, we apply the gray modeling toolbox developed by van Turnhout et al. (2015) on a measured dataset used in the study of...

Gray box modelling of MSW biodegradation; Revealing its dominant (bio)chemical mechanism

Gray box modeling of MSW degradation: Revealing its dominant (bio)chemical mechanism

In this paper we present an approach to describe organic degradation within immobile water regions of Municipal Solid Waste (MSW) landfills which is best described by the term “gray box” model. We use a simplified set of dominant (bio)chemical and physical reactions and realistic environmental conditions. All equations, relationships and...

Gray box modeling of MSW degradation: Revealing its dominant (bio)chemical mechanism

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

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...

Grey box modeling of municipal solid waste

A homogeneous bioreactor model reproducing waste column data: Considering a minimum set of dominant reactions

Landfill emission quantification: Improvement in measurement and modelling approaches to asses (long-term) emissions and stabilization

Poster