Effect of different extraction methods on bound EPS from MBR sludges. Part I: Influence of extraction methods over three-dimensional EEM fluorescence spectroscopy fingerprint

A novel approach for improving the drying behavior of sludge by the appropriate foaming pretreatment

“…The appearance of humic acid-like compounds is always associated with a stronger extraction method, and the alkaline treatment has been commonly employed to extract the bound EPS from the active sludge in wastewater treatment. Overall, the quantity and location of the main fluorescence peaks in the foaming samples were similar to that of the other studies concerning the components of EPS extracted from the sludge (Sheng and Yu, 2006;Domínguez et al, 2010).…”

“…Commonly, the intensity of Peak A was higher than that obtained for Peak B in the case of loosely bound EPS (LB-EPS). On the contrary, the tightly bound EPS (TB-EPS) showed higher intensity for Peak B than for Peak A (Domínguez et al, 2010). Consequently, the organic matters released by the CaO and NaOH pretreatment are mainly derived from the TB-EPS in the sludge, and are dominated by the protein derived compounds.…”

A review of practical tools for rapid monitoring of membrane bioreactors

“…The exact definition and hence properties of ECPs and SMPs is heavily dependent on the methods used to obtain and characterize these biopolymers (Domínguez, et al, 2010a;Domínguez, et al, 2010b). ECP study is widespread however there are no standard methods for extraction making cross-comparison of study results difficult (Rosenberger et al, 2005).…”

Influence of ferrous ions on extracellular polymeric substances content and sludge dewaterability during bioleaching

“…The loosely bound-extracellular polymeric substances (LB-EPS) and tightly bound-extracellular polymeric substances (TB-EPS) of the sludge samples were extracted using the ultrasound methods followed by the centrifugal methods by modifying earlier reported protocol (Domínguez et al, 2010). For sludge samples (50 mL), the flocs were harvested by centrifugation at 550 g for 15min.…”