Method of producing hydroxy free radical from reaction of ozone and exutad water

A technology of free radicals and excited states, applied in the direction of oxidized water/sewage treatment, etc., can solve the problems of increased transportation and storage costs, difficult application problems, high processing costs, etc., and achieve low operating costs, easy operation, and small equipment volume Effect

Inactive Publication Date: 2004-12-22
DALIAN MARITIME UNIVERSITY
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Problems solved by technology

[0044] At present, the main problems of these advanced oxidation methods for preparing hydroxyl radicals are: (1) the processing cost is high, and due to their unique properties, they can only be put into use in a small range; (2) the advanced oxidation methods need additional High-efficiency bubble column reactors, rotating packed bed reactors, fluidized bed photocatalytic reactors, impinging flow reactors and other equipment to strengthen wastewater degradation and im...
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Abstract

A process for preparing the free hydroxy radicals includes such steps as flowing water thorugh Venturi jet tube to activate it, dissolving ozone in the activated water, and plasma chemical reaction. Its advantages are high concentration and high output.

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  • Method of producing hydroxy free radical from reaction of ozone and exutad water

Examples

  • Experimental program(1)

Example Embodiment

[0075] Oxygen gas 17 through figure 1 After the valve 1 and flowmeter 2 in the plasma generator 3, it is processed into O 3 , its concentration is as high as 400g/m 3. o 3 Through the control of the electric valve 11 and the check valve 12, it reaches the Venturi ejector or the vortex impeller pump 9 . The pressure difference produced by the water 19 drawn in by the pump 8 at the front and rear ends of the Venturi ejector or the vortex impeller pump 9 is 0.4MPa to make the water in an excited state, which is different from O 3 The plasma chemical reaction is carried out, and then further dissolved by the gas-liquid dissolver 10 to generate a hydroxyl solution 20 with a specific concentration of 2-10 mg/L. The undissolved ozone is separated and removed with a gas-liquid separator 11 and a residual ozone processor 16 . figure 1 The high-frequency and high-voltage power supply composed of the middle transformer 5 , the inverter 6 and the controller 7 can convert the power frequency 220V voltage 18 into high-frequency and high-voltage power for supplying power to the plasma generator 3 . The ozone concentration tester 4 is used to detect the ozone concentration produced, the hydroxyl solution concentration analyzer 14 is used to detect the concentration of hydroxyl radicals, and the pressure gauge 15 is used to detect the pressure of gas or liquid.
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the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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