Three-section all-in-one rectangular anaeroic digestor

Abstract

The invention relates to a three-section all-in-one rectangular anaeroic digestor comprising a distribution region, a reaction region and a three-phase separation region, wherein the cross section of the digestor is rectangular and respectively provided with the distribution region, the reaction region and the three-phase separation region from bottom to top, and the distribution region, the reaction region and the three-phase separation region are integrated; the distribution region comprises a bottom plate, the lower part of a side wall and a feeding pipe, wherein the upper surface of the bottom plate is connected with the side wall lower part; the reaction region is defined by the middle of the side wall, two sides inside the reaction region are oppositely provided with a first baffle plate and a second baffle plate from bottom to top, the reaction region is divided into three region chambers, and a gas collecting chamber is arranged at the upper part of each region chamber; and the three-phase separation region comprises the upper part of the side wall, an overflow veir, a three-phase separation baffle, a restricted baffle and a top cover, wherein the top cover is respectively provided with three gas collecting holes corresponding to the three gas collecting chambers, and the gas collecting holes are used for collecting the generated biogenic gas. The three-section all-in-one rectangular anaeroic digestor is compact in structure, convenient for manufacturing, easy to realize industrialization, uniform in distribution, not easy to block, high in treatment efficiency, good in liquid-solid mass transfer effect, high in organic load impact resistance and also capable of fractionally collecting the biogenic gas.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a three-section integrated rectangular anaerobic digester. Background technique [0002] With the improvement of people's living standards, the consumption of organic products is increasing, resulting in the discharge of a large amount of industrial organic wastewater. At present, the effective treatment of high-concentration organic wastewater is one of the difficult problems in the field of wastewater treatment. It generally refers to wastewater with COD above 2000 mg / L discharged from industries such as papermaking, leather, and food. These wastewaters contain a large amount of carbohydrates, If organic matter such as fat, protein, and cellulose is discharged directly, it will cause eutrophication of the water body and seriously pollute the water body. [0003] Anaerobic digestion technology is widely used in the treatment of high-concentration organic wastewater due...

AI Technical Summary

Problems solved by technology

At present, the effective treatment of high-concentration organic wastewater is one of the difficult problems in the field of wastewater treatment. It generally refers to wastewater with COD above 2000 mg / L discharged from industries such as papermaking, leather, and food. These wastewaters contain a large amount of carbohydrates, Organic substances such as fat, protein, and cellulose, if discharged directly, will cause eutrophication and other phenomena in the water body, seriously polluting the water body

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