Cellulose: A key polymer for a greener, healthier, and bio-based future

Prevalence of ‘Candidatus Accumulibacter phosphatis’ type II under phosphate limiting conditions

P-limitation in enhanced biological phosphorus removal (EBPR) systems fed with acetate, has generally been considered as a condition leading to enrichment of organisms of the genotype’ Candidatus Competibacter phosphatis’ expressing the glycogen-accumulating organisms (GAO) phenotype. Recent studies have demonstrated in short-term experiments...

Effects of the residual ammonium concentration on NOB repression during partial nitritation with granular sludge

Partial nitritation was stably achieved in a bench-scale airlift reactor (1.5L) containing granular sludge. Continuous operation at 20 °C treating low-strength synthetic wastewater (50 mg N-NH₄ ⁺/L and no COD) achieved nitrogen loading rates of 0.8 g N-NH₄ ⁺/(L·d) during partial nitritation. The...

Combining the enrichment and accumulation step in non-axenic PHA production: Cultivation of Plasticicumulans acidivorans at high volume exchange ratios

The process for non-axenic polyhydroxyalkanoate (PHA) production from organic waste generally comprises three steps: acidogenic fermentation of the waste stream, enrichment of a PHA-producing culture, and production of the PHA. This study assesses the feasibility of combining the enrichment and production step. Harvesting PHA-rich biomass...

Quantitative measurement and visualization of biofilm O₂ consumption rates inmembrane filtration systems

Biofilm-control strategies based on enzymic disruption of the extracellular polymeric substance matrix: A modelling study

Individual-based modelling of biofilms