Current Situation and Problems of MBR Treatment Process in Dye Wastewater

Abstract

In most areas in China, the poor quality of printing and dyeing wastewater discharged from dyeing, papermaking and silk factories have caused a series of environment pollution and health problems. So the optimization of the dyeing wastewater effluent process has become imminent. MBR is a new type of wastewater treatment technology in recent years, MBR can efficiently treatment printing and dyeing wastewater. The paper introduces several basic types of MBR treatment process in terms of the working principle, advantages and current situation of treatment in the dye wastewater applications, including AO-MBR Process, Coagulation Sedimentation-Micro electrolysis-MBR Process, MBR-RO Process, MBR Gravity Drain Process, Submerged Membrane Bioreactor (SMBR) Process and Direct Contact Membrane Distillation Process. Through analysis and summary, the MBR treatment process in dye wastewater should focus on solving the problem of removal of the final product. The effective combination of MBR technology and other chemical and physical treatment processes can provide important guiding significance for the future dye wastewater from the end treatment to the control of source pollution.