Abstract This study compares, based on mathematical modelling, continuous-flow activated sludge processes (CAS) and sequencing batch reactors (SBR). The steady-state or periodic of CAS SBR is compared for a feed composed readily slowly biodegradable substrates, carbon nitrogen removal. simulations are carried out different values the SRT (solids residence time), HRT (hydraulic number cycles int...

Wastewater treatment systems employing simultaneous adsorption and biodegradation processes have proven to be effective in treating toxic pollutants present in industrial wastewater. The objective of this study is to evaluate the effect of Cu(II) and the efficacy of the powdered activated carbon (PAC) and activated rice husk (ARH) in reducing the toxic effect of Cu(II) on the activated sludge m...

A denitrifying microbial consortium was enriched in an anoxically operated, methanol-fed sequencing batch reactor (SBR) fed with a mineral salts medium containing methanol as the sole carbon source and nitrate as the electron acceptor. The SBR was inoculated with sludge from a biological nutrient removal activated sludge plant exhibiting good denitrification. The SBR denitrification rate improv...

Algae-based wastewater treatment is a promising technology with various applications for excess biomass such as biofertilizer production or valuable elements extraction. The benefits of the have been discussed larger plants (WWTPs), but use microalgae in decentralized has barely reported. current study screens possible resource recovery potential onsite technology, which adds algae-based post-t...

Fibreboard production is one of the most important industrial activities in Galicia (Spain). Great amounts of wastewater are generated, with properties depending on the type of wood, treatment process, final product and water reusing, among others. These effluents are characterized by a high chemical oxygen demand (COD), low pH and nutrients limitation. Aerobic and anaerobic processes have been...

The effectiveness of polyhydroxyalkanoates (PHA) production with mixed microbial cultures (MMC) largely depends on the selection PHA-storing microorganisms, conventionally performed in sequencing batch reactors (SBR). These, although easily allow establishment required feast and famine (FF) regime, can represent a factor cost increase when process is scaled up. Here, novel continuous-flow for M...

A laboratory-scale acidogenic anaerobic sequencing batch reactor was set up to test the effect of pH change on microbial community structure of the reactor biomass and process performance. No immediate performance change on acidogenesis was observed after the pH change. However, as the hydrogenotrophic methanogen population decreased, hydrogen content in biogas increased followed by a sharp dec...

A benchmark for the test of control scenarios of sequencing batch reactors (SBR) used for wastewater treatment is proposed. The plant layout includes a buffer tank for wastewater storage in front of the SBR. Performance criteria based mainly on the quality of the effluent are given. The use of the benchmark is illustrated by the study of the effects on the effluent of the control of dissolved o...

Enhanced biological phosphorus removal (EBPR) is an obscure but economical and helpful technology for removing biologically from wastewater. A 3-MLD capacity pre-anoxic selector-attached sequencing batch reactor (SBR) treated municipal wastewater the residents of IIT Roorkee. The treatment in plant satisfied effluent discharge standards all respects except phosphorus, observed during intensive ...

Full-scale wastewater treatment facilities are not able to prevent microplastics (MPs) from discharging into natural waters and they also associated with the land application of sludge. This study evaluates distribution microfibers (MFs) in a lab-scale sequencing batch reactor (SBR) fed by synthetic (SW) for 93 days. The MFs were analyzed through optical microscopy mixed liquor (ML) effluent, s...