Filamentous bulking and foaming are the most common settling problems experienced in
activated sludge (AS) wastewater treatment plants (WWTPs). The quality of the final effluent …

Highlights•Wastewater is rich in lipids.•Specialized bacteria in wastewater treatment plants
accumulate lipids.•The resulting oleaginous bacterial biomass should be exploited for …

Sludge bulking caused by the overgrowth of filamentous bacteria, especially Microthrix
parvicella, has been observed in WWTPs worldwide during low-temperature periods. In this …

The abundances of total and metabolically active populations of Candidatus Microthrix and
Fungi were evaluated by quantitative PCR (qPCR) and retrotranscribed qPCR of ribosomal …

Excessive filamentous bacteria growth in conventional biological activated sludge systems
is known to cause issues such as sludge bulking, rising sludge and foaming. Understanding …

Sludge bulking caused by the overgrowth of filamentous bacteria, particularly Microthrix
parvicella, is one of the challenges for the stable operation of municipal wastewater …

The microbial community composition in a full-scale biogas plant fed with sewage sludge
and fat, oil and grease (FOG) was investigated over a 15-month period, including two foam …

The present study aims to investigate the impacts of a typical recalcitrant organic compound,
namely oleic acid, on the floc characteristics of activated sludge, including extracellular …

The start-up of the completely autotrophic nitrogen removal process was examined in a
sequencing batch reactor (SBR) using low activity anoxic ammonium oxidation (anammox) …

Although the fluorescent in situ hybridization (FISH) has been widely used to identify the
Microthrix parvicella (M. parvicella), there are a few disadvantages and difficulties, such as …