Regenerative Energie
Conventional H2 production methods are based on physico-chemical processes, such as waterelectrolysis or chemical cracking of hydrocarbons; however, in the perspective of reducing fossil fuels use and combustion, H2 production via biological processes is attractive. Biohydrogen can be generated by three microbial groups, namely (1) cyanobacteria which decompose water into hydrogen and oxygen in the presence of light energy by photosynthesis; (2) photosynthetic purple non-sulfur bacteria, which are heterotrophic microorganisms producing H2 under anaerobic conditions and in presence of light energy; (3) fermentative bacteria, primarily Clostridia, which produce H2 through dark fermentation.
In this experimental study a series of batch and semi-continuous experiments were carried out in order to investigate H2 production from piggery wastewater, organic fraction of solid waste and olive mill wastewater. Aerobic activated sludge from municipal wastewater treatment was used as the inoculum to supply biomass and adjust water content of mixtures. Piggery waste and solid wastes were mixed at different proportions with olive mill wastewater so as to evaluate the effect of substrate composition on H2 production. The effect of initial pH conditions and inoculum pre-treatment were studied as well. The results evidenced the main role played by pH conditioning and substrate composition, as well as, in some cases, by pre-treating of the inoculum.
| Copyright: | © IWWG International Waste Working Group |
| Quelle: | Workshop H (Oktober 2007) |
| Seiten: | 11 |
| Preis: | € 11,00 |
| Autor: | Giorgia de Gioannis E. Massi Anna Moreno Aldo Muntoni A. Polettini |
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Rechtliche und praktische Unsicherheiten bei der Durchführung des europäischen Klimaanpassungsrechts durch das Bundes- Klimaanpassungsgesetz (KAnG)
© Lexxion Verlagsgesellschaft mbH (6/2025)
In the context of the European Climate Law (EU) 2021/1119), the Governance Regulation (EU) 2018/1999 and the Nature Restoration Regulation (EU) 2024/1991, the KAnG came into force on July 1, 2024.
Transformatives Klimarecht: Raum, Zeit, Gesellschaft
© Lexxion Verlagsgesellschaft mbH (6/2025)
This article contends that climate law should be conceived as inherently transformative in a double sense. The law not only guides the necessary transformation of economy and society, but is itself undergoing transformation.
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© Springer Vieweg | Springer Fachmedien Wiesbaden GmbH (5/2025)
Die Landestalsperrenverwaltung des Freistaates Sachsen (LTV) betreibt aktuell insgesamt 87 Stauanlagen, darunter 25 Trinkwassertalsperren. Der Stauanlagenbestand ist historisch gewachsen und wurde für unterschiedliche Zwecke errichtet.