Effect of Substrate Characteristics and Process Fluid Percolation on Dry Anaerobic Digestion Processes

Autor: Earl Jenson, Harald Wedwitschka, Daniela Gallegos, Michael Nelles, Michael Tietze, Jürgen Reinhold, Jan Liebetrau
Rok vydání: 2019
Předmět:
Zdroj: Chemical Engineering & Technology. 43:59-67
ISSN: 1521-4125
0930-7516
DOI: 10.1002/ceat.201900404
Popis: The dry anaerobic batch digestion process is an organic waste treatment technology most appropriate for the treatment of stackable (non-free-flowing) dry organic waste materials. The effect of the process fluid percolation and substrate permeability on methane production of organic household waste was investigated in anaerobic dry digestion trials at pilot scale. The container system consisted of two percolation digesters and a fixed-bed methane digester. The experimental results indicate that material compaction occurs during the digestion process and can have a negative effect on substrate permeability. Structure material addition reduced material compaction and as a result increased the substrate permeability.
Databáze: OpenAIRE