Rapid BOD Measurement Using Activated Sludge

Activated Sludge Toxicity Mitigation Using a Respirometric Measurement

This paper presents the results of an evaluation of a toxicity mitigation control strategy using the IWA simulation benchmark (Copp et al., 2002; Copp, 2001). The aim of the proposed strategy is to minimise the impact of a toxic influent shock load on process performance. To do this, the strategy makes use of a respiration rate measurement to detect toxic events and uses an equalisation tank to...

Some investigations on PHA production using activated sludge as inoculum

This paper indicates that activated sludge under certain conditions can achieve levels of polyhydroxyalkanoates (PHA) accumulation which would enable the economic recovery of this precursor of biodegradable plastics. The effects of C/N ratio and temperature on polyhydroxyalkanoates production were evaluated. Acetate uptake, ammonium consumption, oxygen uptake and PHA production were studied und...

Rapid, automated measurement of dielectrophoretic forces using DEP-activated microwells.

Dielectrophoresis (DEP) is a physical effect that generates a force on polarisable particles experiencing a non-homogeneous electric field; studying the effect as a function of frequency allows the determination of the electrical properties of that particle, i.e., the electrical permittivity and conductivity. In the past, DEP-based techniques applied to the measurement of one or several cells a...

Activated sludge bioassays for rapid biochemical oxygen demand

Removal of Ammonium from Synthetic Wastewater using Integrated Fixed Film Activated Sludge (IFAS) includes Powder Activated Carbon

Background & Aims of the Study: High concentration of nitrogen compounds in water and wastewater can be caused various problems and diseases such as methhemoglobinemia and eutrophication. The aim of this study was investigated nitrification and denitrification from wastewater using integrated fixed film activated sludge (IFAS) includes powder activated carbon. Materias and Methods: The labo...