Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool

A technology of ozone contact oxidation and enhanced treatment, applied in the direction of oxidized water/sewage treatment, etc., can solve the problems of low reaction rate of organic pollutants and ozone, difficult degradation of organic pollutants, and different reaction times, etc., to improve the utilization of ozone. efficiency, structure improvement is easy, and the effect of enhancing mass transfer efficiency

Inactive Publication Date: 2007-07-25
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the existing ozone contact oxidation tank is used to treat refractory organic pollutants in water, the utilization rate of ozone is low, the reaction rate of organic pollutants and ozone is low, and the highly stable organic pollutants in water are difficult to degrade. Degradation, under normal circumstances, the reaction time between ozone and organic pollutants in water is different, the amount of ozone consumption is large, and the water treatment effect is not ideal. Provide a method to improve the ozone utilization rate of the ozone contact oxidation tank and strengthen the treatment effect

Method used

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  • Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool
  • Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool
  • Method for promoting ozone utilization rate and intensifying treatment effect of ozone contact-oxidation pool

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specific Embodiment approach 1

[0006] Specific embodiment one: illustrate this embodiment in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, and this embodiment is accomplished in this way: first in each unit pond 1-1 in the ozone contact oxidation pond 1 two A porous medium filler 1-3 is placed between the baffles 1-2, and the porous medium filler 1-3 is composed of a porous medium and a metal or metal oxide loaded on the surface of the porous medium; The ozone contact oxidation tank 1 of the porous medium filler 1-3 is fed with an oxidant in the form of a bubble flow, and the diameter of the oxidant bubble is 20 μm to 5 mm; the oxidant is pure ozone or a mixed gas of ozone and oxygen or ozone and air The mixed gas; the volume percentage of ozone and oxygen is: ozone: 0.001~10%, oxygen: 90~99.999%; the volume percentage of ozone and air is: ozone: 0.001~10%, air: 90% ~99.999%, the ozone concentration is 0.1-5.0mg / L, the water temperature is kept between 0-50°C, and the flow rate of water passing through t...

specific Embodiment approach 2

[0007] Specific embodiment two: this embodiment is described in conjunction with Fig. 1, Fig. 2, Fig. 3, Fig. 4, the difference between this embodiment and specific embodiment one is: the diameter of the oxidizing agent bubble in this embodiment is 3mm, the described The volume percentage of ozone and oxygen is: ozone: 5%, oxygen: 95%; The volume percentage of described ozone and air is: ozone: 5%, air: 95%, the concentration that ozone feeds is 3.0mg / L, The water temperature is kept at 25° C., and the flow velocity of the water passing through the porous medium packing 1-3 is 0.25 m / s.

specific Embodiment approach 3

[0008] Specific embodiment three: This embodiment is described in conjunction with FIG. 1. The difference between this embodiment and specific embodiment one is: in this embodiment, the porous medium filler 1-3 is placed in each unit cell 1-1 Inner bottom wall 1-1-1. Arranging the porous medium filler 1-3 on the bottom wall 1-1-1 in each unit pool 1-1 can change the flow line of the water flow and avoid the occurrence of short flow, thereby prolonging the ozone contact oxidation pool 1. Pollutants contact reaction time with ozone.

[0009] Embodiment 4: This embodiment is described in conjunction with FIG. 2. The difference between this embodiment and Embodiment 1 is that in this embodiment, the porous media filler 1-3 is placed in each unit cell 1-1. On the inner side wall 1-1-2. Arranging the porous media filler 1-3 on the side wall 1-1-2 in each unit pool 1-1 can change the flow line of the water flow and avoid the occurrence of short flow, thereby prolonging the ozone co...

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Abstract

The invention relates to a handling method of enhancing ozone availability ratio, reinforced treatment effect of the ozone contact oxidation pond. The invention solves the present problem: organic pollutant in conditioning water of ozone contact oxidation pond is non-degradable, the availability ratio of ozone is low, the degradation of organic pollutant is not exhaustive. It is accomplished as follows: first set porous media filling materials (1-3) made up of porous media and metal or metallic oxide inside every unit pond (1-1) in said ozone contact oxidation pond (1); then add oxidant whose bubble diameter is 20mum~5mm to said ozone contact oxidation pond, said oxidant is pure ozone or mixture gas of ozone and oxygen / air; the concentration of ozone is 0.1-5.0mg / L. The method in said invention is not only useful for dealing organic pollutant in ozone contact oxidation pool completely, but also enhancing the availability ratio of ozone.

Description

technical field [0001] The invention relates to a treatment method of an ozone contact oxidation tank, in particular to a method for improving the ozone utilization rate of the ozone contact oxidation tank and strengthening the treatment effect. Background technique [0002] With the rapid development of industry and the continuous improvement of human material living standards, the serious pollution of organic pollutants to the water environment has become a common problem. In recent years, the use of advanced ozone oxidation water treatment technology to treat refractory organic pollutants in water has been widely used. However, the existing ozone advanced oxidation technology simply utilizes the reaction of the ozone in the ozone contact oxidation tank with the organic pollutants in the water to degrade the organic pollutants in the water. The use of the above-mentioned ozone advanced oxidation water treatment technology has the problem that the utilization rate of ozone...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/78
Inventor 马军刘百仓
Owner HARBIN INST OF TECH
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