Application of two-phase slug-flow regime to control flux reduction on anaerobic membrane bioreactors treating wastewaters with high suspended solids concentration

Performance evaluation of an side-stream anaerobic membrane bioreactor: Synthetic and alcoholic beverage industry wastewater

“…A higher methane gas percentage (74%) was obtained in studies with beverage wastewater, compared to that of obtained with synthetic wastewater treatment. Wastewater from beverage production facilities contains easily biodegradable organic compounds (BOD5/COD=~0.5) and treatment of this type of wastewater usually comprises of physical pre-treatment for removal of suspended matter followed by biological treatment, either aerobic or anaerobic [21]. Matošić et al (2009) compared the performances of an aerobic MBR and a conventional activated sludge process treating beverage industry effluent [22].…”

Optimization of Anaerobic Membrane Bioreactor Operation for Brewery Wastewater Treatment

“…Most laboratory studies demonstrated that MLSS values of 8-25 g/L and 50 g/L were achieved for brewery wastewater (Strohwald and Ross, 1992;Torres et al, 2011). However, the performance of anaerobic digestion is not limited to the high biomass concentration.…”

“…The early AnMBR application on brewery wastewater (Ince et al, 1993) used a cross flow ultrafiltration membrane anaerobic reactor (CUMAR) system treating high strength brewery wastewater with total a COD of 80,000-90,000 mg/L and COD:N:P ratio at 400:0.7:0.4, which adjusted to 400 (Ince, 1998) The most recent brewery wastewater AnMBR study (Torres et al, 2011) used an external cross-flow AnMBR while recirculating a combination of biogas/liquid through the tubular membrane module. The two phase flow regime was generated through the combination of gas injection and cross-flow velocity, creating highly turbulent conditions to control surface cake layer formation.…”

A systematic study on the effect of substrate acidification degree and acidogenic biomass on sludge filterability

“…So far, high rate anaerobic reactors that rely on granulation for biomass retention have been successfully applied for the treatment of various types of wastewaters (van Lier, 2008). Short hydraulic retention times applied in these reactors exerts a selection mechanism which promotes microbial aggregation, eventually resulting in anaerobic sludge granules, and the wash out of microorganisms incapable of forming these granules.…”