Modelling tool for element (heavy metals, nutrients and carbon) flows during anaerobic digestion (AD) for the assessment of potential organic waste-derived fertilizers
Description
The current modelling tool is part of the research by Angouria-Tsorochidou and Thomsen (2020) “The effect of the collection system on biowaste quality and a modelling framework to evaluate organic waste-derived fertilizers” Elisavet Angouria-Tsorochidou1, 2 and Marianne Thomsen1, 2*. The tool we present models the value of the digestate as potential organic fertilizer, measured by its nutrient content, and its quality, measured by its heavy metal content as a function of the ingestate characteristics and AD performance. We thus propose a simple model for pre-assessment of the digestate based on the ingestate quality. Additionally, we have created a database with 111 cases that includes biowaste quality data of i) source-separated organic fraction of municipal solid waste (SS-OFMSW) and ii) of mechanically separated organic fraction of municipal solid waste (MS-OFMSW) from mixed collected residual waste (Angouria-Tsorochidou, 2020/ DOI: 10.17632/3k5ks5w988.1). The database can be used as a source of quality data for the user to enter in the tool. 1 Research Group on Eco-Industrial System Analysis, Department of Environmental Science, Aarhus University, Frederiksborgvej 399, Postboks 358, DK-4000, Roskilde, Denmark 2 Aarhus University Centre for Circular Bioeconomy *Corresponding Author email: mth@envs.au.dk The research was performed as part of the Horizon 2020 project DECISIVE (Decentralised valorisation of biowaste) under grant agreement N° 689229. The Graduate School of Science and Technology at Aarhus University further supported this work. For feedback please contact Elisavet Angouria-Tsorochidou at elisavet.tsor@gmail.com