Summary 16S rRNA-targeted oligonucleotide probes for eubacteria (EUB338), ammonium-
oxidizing bacteria (Nsm156) and nitrite-oxidizing bacteria (Nb1000) were used for the rapid …

This paper reviews the long-standing bulking sludge problem in activated sludge systems.
Despite the extensive amount of research that has been done on bulking sludge, it still …

The most common activated sludge operating problems causing poor plant performance are
related to solids separation. Especially common are bulking and foaming. Without a proper …

This comprehensive text provides the reader with both a detailed reference and a unified
course on wastewater treatment. Aimed at scientists and engineers, it deals with the …

This paper reviews some of the key wastewater composition parameters, which influence
the biological removal of phosphate from wastewaters, such as COD content, volatile fatty …

Temperature changes can influence biological processes considerably. To investigate the
effect of temperature changes on the conversion processes and the stability of aerobic …

Most filamentous bacteria in biological nutrient removal (BNR) processes have not been
identified beyond their morphotype and simple staining reactions. Furthermore, the majority …

We have developed and implemented methods of extracting morphological features from
images of biofilms in order to quantify the characteristics of the inherent heterogeneity. This …

The selection of filamentous bacteria is often assumed to be associated with specific
microbial properties such as growth rate, substrate uptake rate, substrate affinity and …

A survey of both biological bulking and foaming in activated-sludge plants in Italy was
carried out from January 1996 to July 1998. Of 167 plants surveyed, 84 had a foaming …