O type low-speed anaerobic reactor

Abstract

The invention provides an O type low-speed anaerobic reactor which comprises a pool body, wherein the pool body is of a cylindrical structure, the pool body is internally divided into a lower main reaction zone and an upper gas-solid-liquid separation zone, and the height ratio of the lower main reaction zone to the upper gas-solid-liquid separation zone is 2:1-4:1; a water inlet pipe stretching into the bottom of the pool body is arranged in the pool body, a mud pipe is arranged at the bottom of the pool body, a mixing device is arranged in the main reaction zone, a three-phase separator, a settling zone and a water outlet pipe are arranged in the upper gas-solid-liquid separation zone, the settling zone is arranged at the periphery of the three-phase separator, a filler is arranged in the settling zone, an overflow weir is arranged at the upper part of the settling zone, the water outlet pipe is connected with the overflow weir, and a sewage gas discharging pipe is connected to the three-phase separator. The O type low speed anaerobic reactor has the advantages of simple structure, small occupation area, low requirement on water inlet distribution, high processing efficiency, high outlet water quality stability and is suitable for processing of organic pollutants with various concentrations, simple to operate, convenient to operate, and is easily monitored automatically.

Description

technical field [0001] The invention relates to an anaerobic reactor used in the biochemical treatment stage in the industrial sewage treatment process, and belongs to the technical field of anaerobic reactors. Background technique [0002] The various anaerobic reactors used at this stage can be classified into high, medium and low speed reactors. Anaerobic reactors with a height of less than 10 meters and an ascending flow rate between 0.5-1.0 m / h are classified as medium-speed anaerobic reactors. The COD volume load of medium-speed anaerobic reactors is usually less than 5kgCOD.m3.d, and the start-up and Flocculent sludge can be used during operation. The medium-speed reactor covers a moderate area, saves investment, and is easy to operate, but the disadvantage is that it cannot be used for high-concentration water quality and sewage with poor biochemical properties, and the anaerobic sludge in the system is easy to lose. The high-speed anaerobic reactor is represented ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of existing anaerobic reactors, such as complex structure, many failure points, and difficult operation and management, the present invention provides an O-type low-speed anaerobic reactor with simple structure, small footprint, high mass transfer efficiency, low energy consumption, and stable water output. oxygen reactor

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