Feasibility of Anaerobic Membrane Bioreactors for the Treatment of Wastewaters with Particulate Organic Matter
Abstract:The application of anaerobic submerged membrane bioreactors was studied for the treatment of wastewaters containing suspended solids. A mesophilic and a thermophilic reactors were operated with a synthetic wastewater. The thermophilic reactor achieved higher volumetric loading rates than the mesophilic reactor, reaching 14 g COD/L · d (0.47 g COD/g VSS · d). The mesophilic reactor showed signs of overload, when reaching a volumetric loading rate of 10 g COD/L · d (0.32 g COD/g VSS · d). Cake formation was identified as the main factor governing applicable flux. Low levels of irreversible fouling were observed in both reactors. Low fluxes were attained and gas sparging was ineffective in increasing the critical flux.
Document Type: Research Article
Affiliations: 1: Sub-department of Environmental Technology, Wageningen University, Wageningen, The Netherlands,Chemical Engineering Department, Universidad de La Frontera, Casilla 54-D, Temuco, Chile 2: Sub-department of Environmental Technology, Wageningen University, Wageningen, The Netherlands
Publication date: January 1, 2008