MBR (Membrane Bioreactor) bio-flow separation two-phase up-flow anaerobic digestion reactor

Abstract

The invention provides an MBR (Membrane Bioreactor) bio-flow separation two-phase up-flow anaerobic digestion reactor, which comprises a feeder, an acidification reactor, a methane bioreactor, an MBR membrane tank and an external feeding tank, realizes the anaerobic digestion process of two-phase separation in the reactor, and can perform continuous sample introduction to realize continuous reaction; the acidification reaction and the methanogenesis reaction are separated, so that the reaction effect is remarkably improved, and the continuous reaction device is beneficial to later industrialization; the up-flow stirrer is combined with the water distribution pipe, so that the material is in an up-flow state, and the reaction material is in full contact with the bio-flow separation filler layer; by utilizing the MBR membrane, the hydraulic retention time and the solid retention time can be separated; as the time of methanogens is long, the MBR membrane can intercept a large number of microorganisms, and the quantity of VSS and microorganisms is increased; the internal circulation aeration system is combined with the membrane tank, so that the problem that the aeration system cannot be used in anaerobic digestion is solved, the MBR membrane is not easy to block, and the service life of the MBR membrane is prolonged.

Description

technical field [0001] The invention relates to the technical field of anaerobic reactors, in particular to an MBR biological fluidized two-phase up-flow anaerobic digestion reactor. Background technique [0002] Anaerobic reactor is a device that utilizes anaerobic digestion to recycle organic waste, which can convert organic matter into clean energy. With the development of society and economy, the output of urban organic solid waste has increased rapidly. In 2020, the total output of urban areas above the county level in my country will be 54.58 million tons. There is a huge market for the resource treatment and disposal of urban organic solid waste. Not perfect. Anaerobic digestion treatment is an important way to realize the recycling, harmlessness and reduction of organic waste, and it is widely used in the treatment of organic pollutants such as industrial sewage, urban sludge, and kitchen waste. [0003] However, most of the anaerobic reactors currently used in urba...

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Problems solved by technology

[0003] However, most of the anaerobic reactors currently used in the treatment of urban organic solid waste are single-phase integrated tanks. The reaction time is too long, the treatment effect is not ideal, continuous sample injection cannot be realized, and there are many deficiencies in automatic control, which cannot meet the requirements of experimental research. , and even the needs of industrial applications,

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