Internal circulation biological desulphurization reactor and method thereof

Abstract

The invention discloses an internal circulation biological desulphurization reactor and a method thereof. A main body of the reactor is a cylindrical outer wall, which is divided into a sulfur-collection zone, a water-inlet zone and a circulation reaction zone from bottom to top, and a sedimentation zone is arranged on the outer periphery of the upper portion of the cylindrical outer wall. The sulfur-collection zone is provided with a sulfur-discharging pipe, a screw opening, a mud-collecting tank and an annular inclined plate; the water-inlet zone is provided with an inlet pipe, an aeration head, an air-guiding pipe and a limited rod; the circulation reaction zone is provided with an inner cylinder and a bell mouth; and the sedimentation zone is provided with a sedimentation inclined plane, a flushing pipe, a water outlet, an inclined plate and an outlet pipe. The reactor integrates sulfide oxidation and elemental sulfur separation, and has the advantages of compact structure and small land occupation; the efficient internal circulation of the reaction liquid can be achieved by the stripping effect and the Venturi effect through the optimized combination of the inner cylinder withthe bell mouth; effective separation of muddy water and recovery of elemental sulfur can be achieved by providing the inclined plate, the water outlet and the flushing pipe.

Description

technical field [0001] The invention relates to a biological desulfurization reactor, in particular to an internal circulation biological desulfurization reactor and a method. Background technique [0002] A large amount of organic waste is produced in the process of industrial and agricultural production and urban life. After anaerobic fermentation treatment, a large amount of biogas can be produced, and biogas is a high-grade clean energy. Remove the main component CH from biogas 4 , CO 2 In addition, it also contains H from the degradation of proteins and other sulfur-containing compounds 2 S, its concentration range is usually 500ppmv (0.05%)~20000ppmv (2%). h 2 S not only poses a threat to human health, but also corrodes concrete and steel frame structures. At the same time, the H mixed in the biogas 2 S will produce sulfur oxides after burning, which is an important factor in the formation of acid rain and seriously pollutes the environment. Therefore, biogas de...

AI Technical Summary

Problems solved by technology

However, under high-load conditions, sulfide and oxygen cannot fully contact and react in the bioreactor, resulting in a decrease in the conversion rate of sulfide, and an additional elemental sulfur separation device is required, which is costly and occupies an increased area.

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