Wet oxidation desulfurization method and device

A technology of wet oxidation and desulfurization equipment, which is applied in the direction of chemical instruments and methods, separation methods, and separation of dispersed particles, which can solve the problems of increasing the load of water treatment facilities and achieve the effect of resource recycling

Inactive Publication Date: 2015-01-14
NANJING UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Wet oxidation desulfurization method and device

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specific Embodiment

[0021] A specific embodiment of the wet oxidation desulfurization method of the present invention comprises the following steps:

[0022] (1) Pressurize the ozone gas through the compressor, and pressurize the hydrogen peroxide solution through the booster pump;

[0023] (2) Mix the pressurized ozone gas and hydrogen peroxide and atomize it through the injector;

[0024] (3) Spray the hydrogen sulfide-containing odor into the mixing tube, and at the same time spray the atomized ozone gas and hydrogen peroxide into the mixing tube to mix with the hydrogen sulfide-containing odor;

[0025] (4) Pass the mixed hydrogen sulfide-containing odor, ozone gas and hydrogen peroxide into the spray tower through the mixing pipe for spraying.

[0026] (5) Wash off the oxidation products in the mixing tube and the products that are further absorbed and oxidized in the spray tower, pass the washing liquid into the sedimentation tank, and drain the sedimentation tank regularly to obtain eleme...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/79B01D53/76B01D53/96B01D53/52
Inventor 龚惠娟陈泽智马怡雯
Owner NANJING UNIV
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