Characteristics of Cadmium Accumulation by Batch Activated Sludge.

Removal characteristics of engineered nanoparticles by activated sludge.

Environmental release of engineered nanoparticles (NPs) has been on the rise due to the increased use of NPs in commercial products. In addition, the fate of NPs in sewage treatment processes may play an important role in determining the environmental release pathway of NPs. In this study, we investigated the removal of engineered NPs (AgNPs, TiO2NPs, and SiO2NPs) using activated sludge by eval...

Modeling of Activated Sludge Floc Characteristics

Problem Statement: The activated sludge system needs to improve the operational performance and to achieve more effective control. To realize this, a better quantitative understanding of the biofloc characteristics is required. The objectives of this study were to: (i) Study the biofloc characteristics from kinetics-mass transfer interaction point of view by quantification of the weight of the ...

Adsorption of Cd(II) by Dried Activated Sludge

Effect of Co-ions on Cadmium Sorption Kinetics from Aqueous Solutions by Dried Activated Sludge

The effect of ions presence such as: Na, K, Ca, Cl, SO4 and CO3, at various initial concentrations, on the kinetics of cadmium sorption by dried activated sludge was studied at 25°C and free initial pH solution in batch conditions. The presence of these ions in solution was found to inhibit slightly the uptake of cadmium by dried activated sludge at different degrees: sodium, potassium, calcium...

Comparison Study between Sequencing Batch Reactor and Conventional Activated Sludge by Using Simulation Mathematical Model

The sequencing batch reactor (SBR) is a specific fill and draw version of the conventional activated sludge (AS) process. In contrast to continuous flow systems, the sequencing of batch processes in the SBR is time rather space oriented; metabolic reaction and solid/liquid separation take place at different times in the same reactor. This study aims to investigate the performance and treatment ...