Wet oxidation desulfurization method and device

Abstract

The invention discloses wet oxidation desulfurization method and device capable of removing hydrogen sulfide pollutants generated by a biochemical pool and the like. The wet oxidation desulfurization method disclosed by the invention comprises the following steps: (1) supercharging an ozone gas through a compressor, and supercharging a hydrogen peroxide solution through a booster pump; (2) mixing the supercharged ozone gas with hydrogen peroxide and then atomizing through an ejector; (3) spraying an odor gas containing hydrogen sulfide into a mixing pipe, simultaneously, spraying the atomized ozone gas and hydrogen peroxide mixture into the mixing pipe and mixing the mixture with the odor gas containing hydrogen sulfide; and (4) introducing a mixture of the odor gas containing hydrogen sulfide, the ozone gas and hydrogen peroxide into a spray tower for spraying through the mixing pipe. According to the wet oxidation desulfurization method, green and pollution-free ozone and hydrogen peroxide free of alkali are adopted as oxidants, and hydrogen sulfide can be oxidized into elemental sulfur by the oxidants, so that cyclic utilization of a sulfur element can be achieved, a by-product polluting the environment is not generated in the overall desulfurization process, and no brine waste is generated after the spray tower is washed.

Description

technical field [0001] The invention relates to a wet oxidation desulfurization method and device, which can be used for removing hydrogen sulfide pollutants produced in biochemical pools and the like, and belongs to the technical field of environmental protection. Background technique [0002] Biochemical pools such as sewage treatment plants produce a large amount of odor that pollutes the environment. The main pollutant in the odor is hydrogen sulfide. The work of collecting and purifying treatment. The hydrogen sulfide purification technology in the prior art mainly uses methods such as lye absorption, activated carbon adsorption, sending it into a torch or RTO incinerator for incineration. Alkali absorption is a relatively efficient desulfurization method. In practical applications, the lye prepared by sodium hydroxide is often used to react with hydrogen sulfide. However, this method will form saline wastewater in application, and this wastewater needs to be purified ...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wet oxidative desulfurization method to solve the technical problem that the prior art method for absorbing hydrogen sulfide with lye produces saline waste water, which leads to an increase in the load of water treatment facilities

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