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Water treatment apparatus

A water treatment device and water treatment technology, applied in water/sewage treatment, light water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problem that the gas-liquid interface area cannot be increased, the material decomposition rate is low, and the ozone dissolution rate is slow. And other issues

Inactive Publication Date: 2004-12-01
MITSUBISHI ELECTRIC CORP
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AI Technical Summary

Problems solved by technology

[0005] However, such existing water treatment devices use diffusion devices as the way of mixing oxidants, so the control of the diameter of the bubbles is limited, and the gas-liquid interface area cannot be increased.
For this reason, the dissolution rate of ozone is slow, and the target substance cannot be decomposed efficiently in a short period of time.
[0006] In addition, because the existing water treatment device is equipped with an ultraviolet lamp in the center of a cylindrical or rectangular water tank, in an area far away from the ultraviolet lamp, the treated water cannot obtain the necessary ultraviolet intensity for treatment, and the decomposition rate of the treatment target substance is low.

Method used

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Embodiment Construction

[0031] Embodiment 1

[0032] figure 1 It is a schematic diagram explaining the apparatus structure of Embodiment 1 of the water treatment apparatus of this invention. figure 1 Among them, the water treatment device 101 of the present embodiment includes an ultraviolet irradiation unit 30 and an oxidant mixing unit 60, wherein the ultraviolet irradiation unit 30 accommodates the ultraviolet irradiation unit 10, and at the same time makes the treated water 4 circulate, and irradiates the treated water 4 with ultraviolet rays to make the treated water 4 flow. The substance to be treated in the treated water 4 is decomposed; the oxidizing agent mixing unit 60 is provided adjacent to the ultraviolet irradiation unit 30 , and mixes an oxidizing agent into the treated water 4 .

[0033] Inside the elongated cylindrical pipe-type reactor 1, an ultraviolet irradiation device 10 is installed along the central axis. The ultraviolet irradiation device 10 is composed of a substantially r...

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Abstract

A water treatment apparatus dissolving an oxidizer in wastewater at a fast speed and at a high efficiency to decompose substances at a high decomposition rate. The apparatus includes an ultraviolet radiation part having an elongated tubular configuration, and receiving an axially extending ultraviolet radiation unit with a space between an inner peripheral surface of the ultraviolet radiation unit and the ultraviolet radiation unit to pass wastewater; and an oxidizer mixing part disposed adjacent to and upstream of the ultraviolet radiation part for mixing an oxidizer with the wastewater. The ultraviolet radiation unit irradiates the wastewater with ultraviolet light to decompose the substances to be treated in the wastewater.

Description

technical field [0001] The present invention relates to a water treatment device for clean water and waste water or underground water and industrial waste water. More specifically, it relates to a water treatment device that uses an oxidizing agent such as ozone in combination with ultraviolet irradiation to highly purify water to be treated. Background technique [0002] A water treatment device that uses an oxidizing agent such as ozone and ultraviolet radiation in combination uses free radical substances such as hydroxyl radicals generated by irradiating an oxidizing agent such as ozone with ultraviolet rays to decompose the object to be treated, such as organic chlorine compounds, in the water to be treated. [0003] As such a water treatment device, it has previously been proposed to diffuse ozone gas relative to the water to be treated flowing into a cylindrical reaction tank, and then irradiate ultraviolet rays with an ultraviolet lamp, thereby decomposing the object ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/32C02F1/78
CPCC02F1/78C02F1/325C02F2201/782C02F2101/30C02F2201/3223C02F2303/26
Inventor 上村美贵古川诚司上山智嗣广辻淳二
Owner MITSUBISHI ELECTRIC CORP
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