Publications by authors named "Achim Loewen"
Article Synopsis
- - The article discusses the analysis of microbial communities in eight biogas plants in Lower Saxony, Germany, using techniques like high-throughput DNA sequencing and quantitative PCR.
- - Samples were collected from different parts of the biogas plants, and various substrates like cattle and chicken manure were used, along with data on process parameters and nutrient concentrations.
- - Results showed unique microbial communities in each plant, characterized by a higher abundance of bacteria compared to archaea, and all data were analyzed to understand the diversity and structure of these communities.
Methanogenesis in biogas reactors under inhibitory ammonia concentration requires community-wide tolerance.
Appl Microbiol Biotechnol
November 2023
Ammonia (NH) inhibition represents a major limitation to methane production during anaerobic digestion of organic material in biogas reactors. This process relies on co-operative metabolic interactions between diverse taxa at the community-scale. Despite this, most investigations have focused singularly on how methanogenic Archaea respond to NH stress.
View Article and Find Full Text PDFIn this work, the feasibility of the anaerobic digestion of paper sludge as a co-substrate in anaerobic digestion mechanical-biological treatment (MBT) plants is investigated. In the first phase, the biochemical properties, biomethane potential (BMP), and pollutant contents of 20 different industrial paper sludges are determined. Following the general evaluation in the BMP tests, the second phase of the project involves the semi-continuous co-digestion of six paper sludges in continuous stirred reactors (CSTR).
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