A5037164175- Anaerobic Digestion and Biogas Production
- Biofuel production and bioconversion
- Wastewater Treatment and Nitrogen Removal
- Microbial Metabolic Engineering and Bioproduction
- Microbial Fuel Cells and Bioremediation
- Catalysis for Biomass Conversion
- Microbial Metabolites in Food Biotechnology
- Methane Hydrates and Related Phenomena
- Phosphorus and nutrient management
- Microbial bioremediation and biosurfactants
- Algal biology and biofuel production
- Real-time simulation and control systems
- Biodiesel Production and Applications
- Hybrid Renewable Energy Systems
- Enzyme Catalysis and Immobilization
- Toxic Organic Pollutants Impact
- Membrane Separation Technologies
- Genomics and Phylogenetic Studies
- Environmental Chemistry and Analysis
- Diet and metabolism studies
- Diet, Metabolism, and Disease
- Water Treatment and Disinfection
- Cynara cardunculus studies
- Probiotics and Fermented Foods
- Biochemical Acid Research Studies
Danish Technological Institute
2018
Technical University of Denmark
2008-2017
GTx (United States)
2011
Care Resource
2008-2009
Bulgarian Academy of Sciences
2003-2005
ABSTRACT The influence of environmental parameters on the diversity methanogenic communities in 15 full-scale biogas plants operating under different conditions with either manure or sludge as feedstock was studied. Fluorescence situ hybridization used to identify dominant members Archaea reactor samples; enriched and pure cultures were support identification. Dominance could be identified by a positive response more than 90% total specific group- order-level probe. There clear dichotomy...
ABSTRACT The oxidation of acetate to hydrogen, and the subsequent conversion hydrogen carbon dioxide methane, has been regarded largely as a niche mechanism occurring at high temperatures or under inhibitory conditions. In this study, 13 anaerobic reactors sediment from temperate lake were surveyed for their dominant methanogenic population by using fluorescent in situ hybridization degree relative aceticlastic radiolabeled [2- 14 C]acetate batch incubations. When Methanosaetaceae not...
Methanogenesis from acetate (aceticlastic methanogenesis or syntrophic oxidation (SAO) coupled with hydrogenotrophic methanogenesis) is the most important step for biogas process. The major environmental factors influencing are volatile fatty acids, ammonia, pH, and temperature. In our study, effect of ammonia concentration on methanogenic pathway communities was elucidated in two experiments: one where inocula were gradually exposed to increasing concentrations another direct exposure...
Ammonia-rich substrates inhibit the anaerobic digestion (AD) process and constitute main reason for low energy recovery in full-scale reactors. It is estimated that many AD reactors are operating ammonia induced "inhibited steady-state" with significant losses of potential biogas production yield. To date there not any reliable methods to alleviate toxicity effect or efficiently digest ammonia-rich waste. In current study, bioaugmentation as a possible method mesophilic continuously...
Abstract Long‐term effects of inoculum pretreatments (heat, acid, loading‐shock) on hydrogen production from glucose under different temperatures (37°C, 55°C) and initial pH (7 5.5) were studied by repeated batch cultivations. Results obtained showed that it was necessary to investigate the long‐term effect pretreatment since may just temporarily inhibit consuming processes. After cultivation, pretreated inocula did not enhance compared untreated mesophilic conditions (initial 7 thermophilic...
Second generation hydrogen fermentation technologies using organic agricultural and forestry wastes are emerging. The efficient microbial of hexoses pentoses resulting from the pretreatment lingocellulosic materials is essential for success these processes.Conversion arabinose glucose to hydrogen, by extreme thermophilic, anaerobic, mixed cultures was studied in continuous (70°C, pH 5.5) batch 5.5 7) assays. Two expanded granular sludge bed (EGSB) reactors, Rarab Rgluc, were continuously fed...