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In the present paper, application of tubular MBR process in printing and dyeing wastewater treatment was investigated. Results showed that polyaluminium chloride(PAC) was the best coagulant; When MLSS=8g/L and HRT= 8h, removal of COD and chroma was 82% and 80% in tubular MBR, respectively. Removal of organic pollutants mainly depended on biological degradation, and retention of membrane just enhanced the removal efficiency of MBR. Effects of sludge concentration on the overall attenuation of membrane flux was little, but on the initial flux was evident.</p

Application of Coagulation +Hydrolytic acidification+Tubular Membrane Bioreactor(MBR) System in Printing and Dyeing Wastewater Treatment