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Electrolysis equipment and application thereof

A kind of electrolysis equipment and equipment technology, applied in the direction of electrolysis components, electrolysis process, oxidized water/sewage treatment, etc., can solve the problem that the reduction of sulfate radicals into elemental sulfur cannot be realized, and achieve convenient operation, simple equipment structure, and high-efficiency transformation Effect

Active Publication Date: 2021-06-25
浙江慧科环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For another example, when using existing electrolysis equipment to dispose of waste liquid containing sulfuric acid, the enrichment of sulfate radicals at the anode can be achieved, but the reduction of sulfate radicals into elemental sulfur cannot be realized

Method used

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  • Electrolysis equipment and application thereof
  • Electrolysis equipment and application thereof
  • Electrolysis equipment and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1 sodium chloride mass concentration affects available chlorine content

[0047] Such as figure 1 As shown, the device includes an electrolytic cell 10, a DC power supply and a low-temperature plasma discharge power supply; the electrolytic cell 10 includes a first electrode region, a high voltage region and a second electrode region; the first electrode region is a cathode region , the second electrode area is an anode area; the upper end of the cathode area is provided with a hydrogen exhaust port 16 and a solution inlet 11, and the inside of the cathode area is provided with a cathode electrode 1 with a cathode wire 6; A high-voltage line 9, a high-voltage electrode cover 15 and a ground electrode 4 are provided in sequence from top to bottom, and a high-voltage tap 8, a high-voltage electrode 3 and an aeration head 5 are sequentially provided inside the high-voltage electrode cover 15 from top to bottom; the upper end of the anode area is provided with T...

Embodiment 3

[0060] Embodiment 3 Low-temperature plasma discharge power supply influence on available chlorine content

[0061] Experimental equipment and method are the same as embodiment 1, wherein the sodium chloride aqueous solution concentration is 15%, connects the DC power supply and the low-temperature plasma discharge power supply and handles the sodium chloride aqueous solution for 1.5h, the voltage of the DC power supply is 100V, and the current is 550A, The low-temperature plasma discharge power supply voltage is 75kV, and the power is 10kW, 30kW, 50kW, 70kW, 90kW, 100kW, and six groups of sodium hypochlorite solutions are obtained.

[0062] The detection of available chlorine content is the same as in Example 1, and the test results of this example are shown in Table 3.

[0063] Table 3 Effect of low temperature plasma discharge power on available chlorine content

[0064]

[0065] As can be seen from Table 3, when the power of the low-temperature plasma discharge power su...

Embodiment 4

[0068]Adopt technology of the present invention, experimental equipment and method are the same as embodiment 1, wherein the concentration of sodium chloride aqueous solution is 15%, connect DC power supply and low-temperature plasma discharge power supply and dispose of sodium chloride aqueous solution for 1.5h, the voltage of DC power supply is 100V , the current is 550A, the low-temperature plasma discharge power supply voltage is 75kV, and the power is 100kW to obtain a sodium hypochlorite solution.

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Abstract

The invention discloses electrolysis equipment and application thereof. According to the equipment, an electrolytic bath is coupled to a direct-current power supply and a low-temperature plasma discharge power supply for use. The equipment is simple in structure and convenient to operate, and a target product can be obtained only by adding a to-be-detected solution into the electrolytic bath and acting for a certain time. The equipment disclosed by the invention is applied to preparation of sodium hypochlorite with high available chlorine content by using sodium chloride, so that efficient conversion from sodium chloride to sodium hypochlorite can be realized, and the available chlorine content in the generated sodium hypochlorite solution meets the A-I indexes of sodium hypochlorite. When the equipment is applied to purification of organic waste liquid, 99.8% of COD, 99.9% of chlorine, 99.8% of ammonia nitrogen and 99.5% of total phosphorus in the organic waste liquid can be removed at most. When the equipment is applied to preparation of elemental sulfur from sulfuric acid waste liquid, and the highest conversion rate of sulfate radicals in the sulfuric acid waste liquid can reach 98% or above.

Description

technical field [0001] The invention belongs to the field of chemical production, and in particular relates to an electrolysis device and its application. Background technique [0002] Sodium hypochlorite has better disinfection and bactericidal effects, and is easier to store, transport and use than liquid chlorine, and has better safety, so it is widely used in water purification and sewage treatment plants, printing and dyeing industries, and pulp bleaching . Since the outbreak of novel coronavirus pneumonia, sodium hypochlorite has been widely used as a fungicide and disinfectant in the lives of residents. [0003] At present, the preparation methods of sodium hypochlorite mainly include four kinds: the double decomposition reaction method of bleaching powder and sodium carbonate, the electrolysis method of salt solution, the chlorination reaction method of soda ash solution, and the chlorination method of caustic soda. Wherein the sodium hypochlorite solution produced...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B9/19C25B1/14C25B1/26C25B1/01C02F1/50C02F1/76
CPCC25B1/26C25B1/00C02F1/50C02F1/76C02F2101/30
Inventor 黄涛宋东平周璐璐张树文徐娇娇
Owner 浙江慧科环保科技有限公司
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