（I）. Analysis of the causes of MBR blockage 1. Wastewater quality The nature of wastewater has an important impact on MBR blockage. High concentrations of organic matter, inorganic salts, suspended solids, and microbial content will increase the degree of membrane fouling. For example, in the treatment of printing and dyeing
（I）Membrane surface pollution and blockage 1. Organic pollution Cause: A large amount of organic matter contained in wastewater, such as protein, oil, polysaccharide, etc., is adsorbed and deposited on the membrane surface to form an organic film. These organic substances have strong adhesion and are easy to combine with microbial
1.the difference 1)Process principles and characteristics MBR: Combines membrane separation technology with activated sludge method, uses membrane components instead of secondary sedimentation tanks, realizes the separation of sludge retention time and hydraulic retention time, increases activated sludge concentration, and improves effluent quality. SBR: Intermittent activated sludge process, which carries out
