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Pronk, M. (author), Abbas, B. (author), Kleerebezem, R. (author), Van Loosdrecht, M.C.M. (author)
The influence of sludge age on granular sludge formation and microbial population dynamics in a methanol- and acetate-fed aerobic granular sludge system operated at 35°C was investigated. During anaerobic feeding of the reactor, methanol was initially converted to methane by methylotrophic methanogens. These methanogens were able to withstand...
journal article 2015
document
Tamis, J. (author), Sorokin, D.Y. (author), Jiang, Y. (author), Van Loosdrecht, M.C.M. (author), Kleerebezem, R. (author)
Background Many waste streams have a relatively high vegetable oil content, which is a potential resource that should be recovered. Microbial storage compound production for the recovery of lipids from lipid-water emulsions with open (unsterilized) microbial cultures was investigated in a sequencing batch reactor using a diluted vegetable oil...
journal article 2015
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van den Berg, E.M. (author), Elisario, Marina P. (author), Kuenen, J.G. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
Denitrification and dissimilatory reduction to ammonium (DNRA) are competing nitrate-reduction processes that entail important biogeochemical consequences for nitrogen retention/removal in natural and man-made ecosystems. The nature of the available carbon source and electron donor have been suggested to play an important role on the outcome of...
journal article 2017
document
Jiang, Y. (author), Mikova, G. (author), Kleerebezem, R. (author), Van der Wielen, L.A.M. (author), Cuellar Soares, M.C. (author)
This study focused on investigating the feasibility of purifying polyhydroxybutyrate (PHB) from mixed culture biomass by alkaline-based chemical treatment. The PHB-containing biomass was enriched on acetate under non-sterile conditions. Alkaline treatment (0.2 M NaOH) together with surfactant SDS (0.2 w/v% SDS) could reach 99% purity, with more...
journal article 2015
document
Junicke, H. (author), Abbas, B. (author), Oentoro, J. (author), Van Loosdrecht, M. (author), Kleerebezem, R. (author)
Identification of individual biomass concentrations is a crucial step towards an improved understanding of anaerobic digestion processes and mixed microbial conversions in general. The knowledge of individual biomass concentrations allows for the calculation of biomass specific conversion rates which form the basis of anaerobic digestion models....
journal article 2014
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van den Berg, E.M. (author), Boleij, M. (author), Kuenen, J.G. (author), Kleerebezem, R. (author), van Loosdrecht, Mark C.M. (author)
Denitrification and dissimilatory nitrate reduction to ammonium (DNRA) compete for nitrate in natural and engineered environments. A known important factor in this microbial competition is the ratio of available electron donor and elector acceptor, here expressed as Ac/N ratio (acetate/nitrate-nitrogen). We studied the impact of the Ac/N ratio...
journal article 2016
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