M. van Loosdrecht

A difficult coexistence: resolving the iron-induced nitrification delay in groundwater filters

This study identifies Fe3+ flocs as the main cause of nitrification delay in groundwater filters by inhibiting NH4+ oxidation, showing the inhibition is reversible through backwashing.

Shifting to biology promotes highly efficient iron removal in groundwater filters

This study shows that mild aeration in sand filters promotes biological iron removal, achieving faster oxidation rates and higher water yields compared to intensive aeration.

Exploring the metabolic potential of Aeromonas to utilise the carbohydrate polymer chitin

This study shows two Aeromonas strains can degrade and use chitin as a carbon and nitrogen source, revealing their metabolic potential in nutrient-poor environments.

Microbiome, resistome and mobilome of chlorine-free drinking water treatment systems

This study analyzes antibiotic resistance determinants in chlorine-free drinking water treatment plants using metagenomics and quantitative PCR, finding reduced ARGs and MGEs despite increases in disinfection sub-units.

Meta-omics profiling of full-scale groundwater rapid sand filters explains stratification of iron, ammonium and manganese removals

The paper uses metaproteomics to analyze full-scale groundwater filters and shows how microbial protein expression stratifies with nutrient availability, explaining iron, ammonium, and manganese removal patterns.

Antibiotic resistance response to sulfamethoxazole from the intracellular and extracellular DNA fractions of activated sludge

This study examines how sulfamethoxazole affects the distribution of antibiotic resistance genes in intracellular and extracellular DNA fractions of activated sludge under stress conditions.

Adaptation of anammox bacteria to low temperature via gradual acclimation and cold shocks: distinctions in protein expression, membrane composition and activities

This study compares gradual temperature decrease and cold shocks for adapting anammox bacteria to low temperatures, finding cold shocks more effective in maintaining metabolic activity and protein expression.

Effects of light/dark diel cycles on the photoorganoheterotrophic metabolism of Rhodopseudomonas palustris for differential electron allocation to PHAs and H2

This study examines how light/dark cycles affect electron allocation in Rhodopseudomonas palustris, showing that PHAs are prioritized over H2 production under diel conditions.