Anaerobic reaction tank

Abstract

The invention discloses an anaerobic reaction tank. The anaerobic reaction tank is characterized in that a partition plate with a nearly 'W'-shaped longitudinal section is distributed on the lower portion of a tank, and the lower portion of the tank is divided into a circle of water inlet distribution cavities and a circle of sediment collecting cavities by the partition plate; a main water inletpipe is communicated with the water inlet distribution cavities; a plurality of water distribution branch pipes are further distributed on the tank; a plurality of water distributors are further distributed on the portions, which are distributed in the tank, of the water distribution branch pipes; the water distributors are distributed above the sediment collecting cavities; the water distributionbranch pipes are communicated with the water inlet distribution cavities; a plurality of sediment discharge pipes are communicated with the lower portions of the sediment collecting cavities, and theouter ends of the sediment discharge pipes extend out of the tank; valves are further distributed on the sediment discharge pipes, and a potential energy circulator is further arranged on the upper portion of the tank. The anaerobic reaction tank has the advantages of uniform water distribution, good reaction effect, difficulty in blockage, easiness in checking blockage, efficient blockage removal, good sediment settling and collecting effects, simplicity and convenient in sediment discharge and stable integral operation.

Description

technical field [0001] The invention relates to the technical field of sewage treatment equipment, in particular to an anaerobic reaction tank. Background technique [0002] With the rapid development of modern industry, especially organic chemical industry, petrochemical industry, dyestuff, medicine, pesticide and other chemical industries, various refractory organic wastewaters are increasing. These wastewaters generally have high pollutant concentration, high suspended solid content, and high toxicity. , The characteristics of poor biodegradability, serious pollution of water environment, endangering human health. [0003] High-concentration organic wastewater is a major industrial pollution source that is difficult to treat, with high COD concentration. At present, the domestic high-concentration organic wastewater treatment will apply anaerobic treatment technology, but in the water distribution of the anaerobic reactor, the traditional perforated water distribution, o...

AI Technical Summary

Problems solved by technology

The return of the anaerobic effluent from the anaerobic reactor to the pre-acidification tank will occupy the volume of the pre-acidification tank, which reduces the residence time of the wastewater and is not conducive to anaerobic digestion; on the other hand, after the return water enters the pre-acidification tank, it needs to be raised again To the anaerobic reactor, resulting in a great waste of energy and high operating costs

At the same time, the return flow control is inaccurate and inflexible, which consumes a lot of energy and costs high

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