title: Textile wastewater treatment in a bench-scale anaerobic-biofilm anoxic-aerobic membrane bioreactor combined with nanofiltration.
abstract: This study evaluated the treatability of textile wastewaters in a bench-scale experimental system, comprising an anaerobic biofilter, an anoxic reactor and an aerobic membrane bioreactor (MBR). The MBR effluent was thereafter treated by a nanofiltration (NF) membrane. The proposed system was demonstrated to be effective in the treatment of the textile wastewater under the operating conditions applied in the study. The MBR system achieved a good COD (90-95%) removal; due to the presence of the anaerobic biofilter, also effective color removal was obtained (70%). The addition of the NF membrane allowed the further improvement in COD (50-80%), color (70-90%) and salt removal (60-70% as conductivity). In particular the NF treatment allowed the almost complete removal of the residual color and a reduction of the conductivity such as to achieve water quality suitable for reuse.
authors: ENEA (Italian National Agency for New Technologies, Energy and Sustainable Economic Development), Water Resource Management Laboratory, Bologna, Italy.
authors: Selene
authors: S
authors: Grilli
authors: Daniela
authors: D
authors: Piscitelli
authors: Davide
authors: D
authors: Mattioli
authors: Stefania
authors: S
authors: Casu
authors: Alessandro
authors: A
authors: Spagni
mesh_terms: D001421:Bacteria, Anaerobic / Q000378:metabolism*; D056804:Biofuels / Q000032:analysis; D057919:Biological Oxygen Demand Analysis; D019149:Bioreactors; D002849:Chromatography, Gas; D003116:Color; D004553:Electric Conductivity; D005232:Fatty Acids, Volatile / Q000032:analysis; D005374:Filtration; D053758:Nanoparticles; D013784:Textiles; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
chemical_list: D056804:Biofuels; D005232:Fatty Acids, Volatile