Method and device for removing bromate in water

A bromate and water removal technology, which is applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve problems such as complex process, unstable effect, and non-compliance with the process requirements of bottled mineral water, etc., to achieve treatment The effect of simple process

Inactive Publication Date: 2009-11-25
余建军
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the gas dosing process in the production water process is complicated, which increases the cost of water production, and can only inhibit the formation of bromate, but cannot completely block its production. The generated bromate can be adsorbed by suitable activated carbon , but the disadvantage is that a specific activated carbon must be selected, and the activated carbon treatment is easily affected by factors such as the PH value and water temperature of the tre

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  • Method and device for removing bromate in water
  • Method and device for removing bromate in water
  • Method and device for removing bromate in water

Examples

Experimental program
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Example Embodiment

[0028] Example 1: see figure 1 ,3 , Inside a closed 304# stainless steel tube 1 with an inner diameter of 123mm and a length of 1000mm, multiple KrCl with a wavelength of 222nm * Excimer lamp tube 2, the inner wall is polished into a mirror surface, the distance between the lamp tube and the inner wall of the lamp tube and the stainless steel tube cavity is not more than 15mm, the high-frequency high-voltage power supply for the excimer ultraviolet lamp 3, through the silicon rubber wire 4 directions The power supply of the molecular lamp 2 is 1400W. The treated water (drinking natural mineral water sterilized by ozone) enters from the inlet 5, and is discharged through the water outlet 6, with a flow rate of 100L / min. The bromate concentration before the detection treatment was 0.51mg / L, and the bromate concentration in the water after treatment was lower than the minimum detection limit of 0.005mg / L by the ion chromatographic detector used. It could not be detected, and the ozo...

Example Embodiment

[0029] Embodiment 2: As in embodiment 1, the light source is KrBr with a wavelength of 207nm * Excimer lamp, the detection has similar results, and the ozone concentration is basically unchanged before and after treatment.

Example Embodiment

[0030] Embodiment 3: As in embodiment 1, the light source is KrBr with a wavelength of 190nm * Excimer lamp, the detection has similar results, and the ozone concentration is basically unchanged before and after treatment.

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Abstract

The invention relates to a method and a device for removing the bromate in water, which is characterized by radiating the water by ultraviolet with the wavelength between 150-250 nm, and is particularly suitable for the natural water production that the water is radiated by the ultraviolet with the wavelength between 150-240 nm and then the bromate in water is measured not more than 0.01 mg/L. Compared with the prior art, the method is more simple, adds an ultraviolet radiation technology before filling the natural mineral water, restrains the bromate content in water, maintains the ozone residual effect in filling, does not change the raw water quality such as pH value and needs any processing medicament.

Description

technical field [0001] The invention relates to a method and a device for conveniently removing bromate in water, especially for removing bromate in water after the ozone sterilization process for producing natural water such as natural mineral water or mountain spring water, while retaining residual ozone meeting requirements. Background technique [0002] In addition to many organic and inorganic substances in natural raw water, bromides also exist in ppb levels. At present, the advanced treatment and sterilization process of natural water such as drinking natural mineral water or mountain spring water mostly adopts ozone sterilization, and a certain amount of ozone residue is required for bottled water, which can sterilize both water and bottle caps at the same time. However, when ozone is used for disinfection, the bromide in water reacts with ozone and will be converted into bromate bromate (BrO3), which is difficult to remove by conventional water treatment processes. ...

Claims

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Application Information

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IPC IPC(8): C02F1/58C02F1/32C02F101/12
Inventor 余建军
Owner 余建军
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