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Wastewater oxidation device and system and wastewater deep treatment oxidation method

An oxidation device and oxidation treatment technology, which are applied in the directions of oxidized water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problem of safe catalyst deactivation, low utilization rate of light energy in ultraviolet photocatalytic process, and treatment efficiency. limited issues

Pending Publication Date: 2020-10-27
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Common advanced oxidation treatment technologies include Fenton oxidation, ozone catalytic oxidation, and ultraviolet photocatalytic process, etc., but the existing processes have limited treatment efficiency and high cost. For example, Fenton oxidation consumes a large amount of chemicals and produces iron-containing sludge, and ozone catalytic oxidation There are problems such as tail gas treatment, safety, and catalyst deactivation, and the light energy utilization rate of conventional ultraviolet photocatalytic processes is low.

Method used

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  • Wastewater oxidation device and system and wastewater deep treatment oxidation method
  • Wastewater oxidation device and system and wastewater deep treatment oxidation method
  • Wastewater oxidation device and system and wastewater deep treatment oxidation method

Examples

Experimental program
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specific Embodiment approach

[0049] The number of vacuum ultraviolet light sources is subject to the treatment capacity of the wastewater treatment device, for example, 1-10, preferably 1-5. like figure 2 As shown, according to a specific embodiment of the present invention, when it is necessary to arrange more than two vacuum ultraviolet light sources in the oxidation section, correspondingly, there are more than two sleeve tubes, and the openings on the upper end cover are also Correspondingly, there are more than two, and the outer peripheral side walls of the upper end of the casing are respectively fixedly connected with the openings provided on the upper end cover. Preferably, the vacuum ultraviolet light source is a straight tube vacuum ultraviolet lamp. More preferably, the sleeve and the vacuum ultraviolet light source are integrated, that is, when the sleeve is fixed in the opening on the end cover, the position of the vacuum ultraviolet light source is also fixed. According to a preferred em...

Embodiment 1

[0096] Turn on the water inlet pump, and the industrial wastewater to be treated enters the oxidation section in the hollow cylinder of the wastewater oxidation device from the water inlet of the water inlet unit (without adding a homogeneous catalyst). valve and drain outlet and drain valve. When the liquid level of the wastewater to be treated rises to about 5-10mm from the water inlet, turn off the water inlet pump of the water inlet unit.

[0097] Turn on the straight-tube vacuum ultraviolet lamp with integrated structure, turn on the intake pump and intake valve of the nitrogen gas source of the gas delivery unit, adjust the gas rotameter to a gas flow rate of 100mL / min, and the gas enters the filtration and separation section of the wastewater oxidation device , the gas enters the upper oxidation section through the micropores of the flat ceramic membrane, forming fine bubbles, which continuously contact and mix with the industrial wastewater to be treated. After 30 min...

Embodiment 2

[0101] Adopt the same method as Example 1 to process the industrial wastewater with the same water quality as Example 1, the difference is that the gas source is oxygen, and the gas flow rate is 100mL / min. After 30min treatment in the wastewater oxidation device, the measured water quality is as follows : COD is 62.0mg / L, BOD is 21.1mg / L, BOD / COD is about 0.34.

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Abstract

The present invention relates to the field of sewage treatment, and discloses a wastewater oxidation device and system, and a wastewater deep treatment oxidation method. The device comprises a hollowcylinder having an upper end cover and a lower end cover, wherein the upper end cover and the lower end cover respectively seal the top end and the bottom end of the hollow cylinder, the bottom of anoxidation section is adjacent to the top of a filtration separation section through a porous membrane, and the oxidation section and the filtration separation section are divided into two independentspaces by the porous membrane. According to the oxidation device and system for deep treatment of industrial wastewater and the oxidation method for deep treatment of the wastewater, deep treatment ofrefractory organic pollutants in the industrial wastewater can be achieved, and the advanced oxidation treatment efficiency is improved.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a wastewater oxidation device and system for advanced treatment of industrial wastewater and an oxidation method for advanced treatment of wastewater. Background technique [0002] With the rapid development of industry, the contradiction between production and the environment has become increasingly prominent, and environmental protection has become a measure of economic construction. [0003] With the increasingly stringent water environment protection indicators and the complexity of processing technology, various industries (such as petrochemical, pharmaceutical, steel, printing and dyeing industries) are facing increasingly severe environmental pressures. Traditional industrial wastewater treatment processes (primary treatment + secondary Biochemical) can no longer meet the new standards and future environmental protection needs, so the development of new and efficient indust...

Claims

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Application Information

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IPC IPC(8): C02F9/08
CPCC02F9/00C02F1/725C02F1/444C02F1/32C02F1/722C02F1/78
Inventor 王辉高嵩孙钰林余正齐孙飞
Owner CHINA PETROLEUM & CHEM CORP
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