Novel MBBR (Moving Bed Biofilm Reactor) process water-passing interception system

Abstract

The invention discloses a novel MBBR (Moving Bed Biofilm Reactor) process water-passing interception system. The system comprises an MBBR pool; the water inlet is formed in one side of the MBBR tank; the water outlet is formed in the other side of the MBBR tank; the aeration disc is fixedly arranged at the bottom end of the inner cavity of the MBBR tank; the submersible stirring pump is fixedly arranged on one side of the inner cavity of the MBBR tank; and the water passing interception mechanism is arranged in the inner cavity of the MBBR pool. According to the novel MBBR process water passing interception system, by arranging the water passing interception mechanism, many defects of a traditional interception net type filler interception mode are mainly overcome, the cost is reduced, the fluidization problem of the filler is better solved, the water outlet amount is stable and continuous, and the operation power is small.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a novel MBBR process water interception system. Background technique [0002] As my country's sewage treatment plant needs to be upgraded or upgraded, MBBR and activated sludge are fused to form a suspended biofilm-activated sludge composite process (Integrated Suspended Bio-film and Activated Sludge Process, ISBAS process) for sewage plant upgrading Transformation, especially for nitrogen removal, has a better effect. The process principle is: by adding active biological fillers to each section of the activated sludge reactor, the biomass and microbial species in the reactor are increased, thereby improving the efficiency of the reactor. The technical key is the active biological filler that can quickly form a film under aerobic, anoxic, and anaerobic conditions. Due to the advantages of good treatment effect, strong impact load resistance, simple operation and managemen...

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Problems solved by technology

[0003] After the filler is added to the activated sludge reactor, it is necessary to set up a block in the filler tank to prevent the filler from flowing out of the filler tank. The conventional method is to set an interception screen at the end, and cooperate with auxiliary aeration to allow water to pass through without blocking the filler. Blocking, but this method has many disadvantages: 1. The construction is troublesome and basically requires on-site production, which cannot be prefabricated; 2. The blocking area is large, and the materials are basically stainless steel, which requires a large investment; 3. Auxiliary aeration is required to avoid blockage The blocking area will affect the passing water;

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