Water and Wastewater Features

Water and Wastewater Features Archive

Mapal Green Energy in fine bubble aeration filtration solution Mapal Green Energy in fine bubble aeration filtration solution

Mapal Green Energy's floating fine bubble aeration marries strengths of mechanical surface aeration technology.

Performance of ZrO2 ceramic microfiltration membranes in DMF wastewater pretreatment

ZrO2 microfiltration membranes with different pore sizes have been investigated for pretreatment of dimethylformamide (DMF) wastewater, which is generated in synthetic leather production. The 0.2 µm ZrO2 membrane was found to effectively remove the fine particles. Combined flushing, ultrasonic and chemical cleaning was effective for flux recovery.

Implications of changing solids retention time on long-term evolution of sludge filterability in anaerobic membrane bioreactors

Long-term experiments have assessed the impact of changing the solids retention time (SRT) on sludge filterability in anaerobic membrane bioreactors (AnMBRs). The accumulation of colloids and solutes in AnMBRs can be limited by SRT optimisation, and better sludge filterability was observed at 20 days SRT compared to elevated SRTs.