Membrane Bioreactors for Industrial Wastewater Treatment: A Critical Review

Membrane fouling in a submerged membrane bioreactor: Impacts of floc size

“…Membrane bioreactors (MBRs) technology has emerged as an important innovation for wastewater treatment and reuse [1,2]. However, membrane fouling, which will increase filtration resistance and energy consumption, has highly hampered the widespread use of this technology [1,[3][4][5].…”

Biogas-pH automation control strategy for optimizing organic loading rate of anaerobic membrane bioreactor treating high COD wastewater

“…But the organic loading rate (OLR) of the AnMBR at 2.1-8.6 kgCODÁm À3 Ád À1 is relatively low in food processing wastewater treatment by AnMBR, caused by unpredictable constituents of food processing wastewater and limited biomass concentration of AnMBR (Liao et al, 2006;Lin et al, 2012). The unpredictable constituents were related to various food products, seasonal changes of post harvesting and food processing, leading to unstable COD and pH of wastewater (Lin et al, 2012).…”

“…But the organic loading rate (OLR) of the AnMBR at 2.1-8.6 kgCODÁm À3 Ád À1 is relatively low in food processing wastewater treatment by AnMBR, caused by unpredictable constituents of food processing wastewater and limited biomass concentration of AnMBR (Liao et al, 2006;Lin et al, 2012). The unpredictable constituents were related to various food products, seasonal changes of post harvesting and food processing, leading to unstable COD and pH of wastewater (Lin et al, 2012). With limited biomass, one of the critical challenges of treating high COD wastewater by AnMBR is how to maximize OLR, which would cause high effluent COD concentration and unstable operation by overload (Tay and Zhang, 2000), or less efficient performance by underload (Menardo et al, 2011).…”

Design improvement and performance evaluation of solar photocatalytic reactor for industrial effluent treatment

“…Thus, O 2 delignification and the substitution of molecular chlorine by chlorine dioxide in the ECF (Elemental Chlorine Free) bleaching process reduces the amount of chlorinated organics formed (Rodrigues et al, 2008). Conventional waste treatment systems using techniques such as coagulation, chlorination or ozonation which employ potentially hazardous or polluting materials (ParamaKalyani et al, 2009;Lin et al, 2012;Botía et al, 2012). Thus, solar photocatalysis provides a better alternative of treatment of such industrial waste water effluents (Botía et al, 2012;Pérez et al, 2002).…”