Porous plate and strainer coupled upflow-type granular sludge reactor

Abstract

A porous plate and strainer coupled upflow-type granular sludge reactor comprises a reactor body; a water distribution unit, an anaerobic reaction unit, a three-phase separation unit and an outflow unit; the bottom of the water distribution unit is provided with an incoming water pipe; the anaerobic reaction unit includes at least one sludge discharge region and at least one porous partition reaction region; the top of the sludge discharge region is adjacent to the porous partition reaction zone; each sludge discharge region is correspondingly provided with one sludge outlet; each porous partition reaction region is fitted with a porous partition; a three-phase separation region of the three-phase separation unit is fitted with a three-phase separator; the outgoing water includes an outflow tank and an outflow pipe; a circular outflow channel is provided between an outflow pier and the inner wall of the reactor body; the outflow tank is provided with the outgoing water pipe. The porousplate and strainer coupled upflow-type granular sludge reactor is equivalent to various UASB (upflow anaerobic sludge blanket) upflowrector series, denitrification rate is high, load impact is too great, and the reaction system is more stable.

Description

technical field [0001] The invention relates to an upflow granular sludge reactor coupled with a porous plate and a filter net. Background technique [0002] With the development of industry, the discharge of high ammonia nitrogen wastewater has gradually increased, causing a series of ecological and environmental problems such as eutrophication of water bodies. The efficient and low-consumption treatment of ammonia-containing wastewater has always been a difficult problem in the field of sewage treatment. [0003] The ANAMMOX process has been recognized as one of the most economical biological nitrogen removal processes due to its advantages of no additional organic carbon source, high denitrification load, low operating cost, and small footprint. However, anammox bacteria grow slowly, have low cell productivity, and are sensitive to changes in environmental conditions. This limits the large-scale application of the anammox process in practical engineering. [0004] The ...

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Problems solved by technology

However, anammox bacteria grow slowly, have low cell productivity, and are sensitive to changes in environmental conditions.

Limits the large-scale application of the anaerobic ammonium oxidation process in practical engineering

[0004] The start-up of traditional anaerobic ammonium oxidation reactors is mostly based on SBR, UASB, fixed bed, etc. Although SBR has good bio-retention capacity, it requires a high degree of automation; UASB sludge retention capacity is weak, and bacteria are easy to lose; fixed bed Bed prone to short flow and clogging

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