Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 445193
Title Development of a mixed culture chain elongation process based on municipal solid waste and ethanol
Author(s) Grootscholten, T.I.M.
Source University. Promotor(en): Cees Buisman, co-promotor(en): Bert Hamelers. - Wageningen : Wageningen UR - ISBN 9789461737809 - 190
Department(s) Sub-department of Environmental Technology
WIMEK
Publication type Dissertation, internally prepared
Publication year 2013
Keyword(s) afvalbeheer - afvalverwerking - keukenafval - bio-energie - fermentatie - ethanol - waste management - waste treatment - kitchen waste - bioenergy - fermentation
Categories Waste treatment / Bioenergy
Abstract

Keywords: mixed culture fermentation; Carboxylates; Caproate; Heptanoate; ethanol; OFMSW

To reduce dependence on oil, alternative fuel and chemical production processes are investigates. In this thesis, we investigated the production of medium chain fatty acids (MCFAs) using an anaerobic chain elongation process from the organic fraction of municipal solid waste (OFMSW) and (diluted) ethanol.By using OFMSW for the production of MCFAs, OFMSW can be valorised. Moreover, the food-fuel discussion can be avoided, as long as the ethanol is not produced from food resources. Investigations included studies about single stage and two-stage systems, methods to reduce impact of competitive processes within the desired mixed microbial culture and kinetic considerations. As result, the MCFA productivity was improved more than 100-fold compared to the productivity at the start of the investigations. Consequently, the potential of the mixed culture chain elongation process as alternative for anaerobic digestion has increased.

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