Up-flow anaerobic biological filter bed reactor

Abstract

The invention discloses an up-flow anaerobic biological filter bed reactor which comprises a reactor body, wherein a biological mud bed area, a biological mud suspension area and a methane overflow area are sequentially arranged in the reactor body from bottom to top; a biological mud circulating system is arranged at the bottom of the biological mud bed area of the reactor body; a floating packing layer is arranged in the biological mud suspension area; and a discharge system is arranged at the top of an upper clarification area of the reactor body. According to the up-flow anaerobic biological filter bed reactor, a balanced water distribution system, a stirring device and a gas striping structure with a complicated structure in the prior art are replaced with the biological mud circulating system, so that sewage is fully mixed with the biological mud to obtain a relatively good mass transfer condition; and the bacteria storage amount of anaerobic biological bacteria is increased by arranging the floating packing layer in the biological suspension area, so that the sewage treatment capacity of the up-flow anaerobic biological filter bed reactor can be effectively improved and maintained for a long period of time.

Description

Technical field [0001] The invention relates to sewage treatment technology, in particular to an upflow type anaerobic biological filter bed reactor. Background technique [0002] The anaerobic biological treatment method is an organic sewage treatment method that uses facultative anaerobes and obligate anaerobes to degrade macromolecular organic matter in sewage into low-molecular organic matter, and then convert it into methane and carbon dioxide. Among them, the upflow anaerobic sludge The bed reactor is a typical structure of anaerobic biological treatment. Compared with other types of anaerobic reactors, the hydraulic residence time of wastewater in the upflow anaerobic sludge bed reactor is shorter, so the required pool capacity is greatly reduced. In addition, the equipment is simple and easy to operate. There is no need to set up sedimentation tanks and biological mud return devices, no need to fill fillers, and no need to set up mechanical stirring devices in the reacti...

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Problems solved by technology

[0004] However, in the upflow anaerobic sludge bed reactor with the above structure, it is difficult to form granular sludge, and the anaerobic sludge is finely divided and easily lost with air, so there is generally a problem of low storage of anaerobic bacteria.

In addition, short flow and partial flow are prone to occur in the biological mud bed, and the mass transfer conditions are poor, which affects the sewage treatment capacity

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