Novel nanometer catalytic electrolysis device

A nano-catalysis and electrolysis device technology, applied in chemical instruments and methods, water treatment of special compounds, flotation water/sewage treatment, etc., can solve problems such as low current efficiency, high treatment cost, and unsatisfactory solid-liquid separation effect , to achieve the effect of accelerating the sedimentation of impurities and reducing pollution

Inactive Publication Date: 2012-08-15
BOYING XIAMEN SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing electrolysis device exposed some problems during operation (1) current load and distribution are not good, the electric density is small, the overpotential is high, the working voltage is high, and the current efficiency is not high; (2) the reactants on the electrode surface Concentration balance is difficult; (3) The hydrogen generated by the cathode is not effective in ...

Method used

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  • Novel nanometer catalytic electrolysis device
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  • Novel nanometer catalytic electrolysis device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Treatment effect of purification and disinfection of polluted lake water

[0063] Pump the polluted lake water into a new nano-catalytic electrolysis device for electrolysis, the voltage between the two electrodes is 4 ~ 8V, and the current density is 200 ~ 320mA / cm 2 ), keep the residence time of the polluted lake water in the electrolytic cell not less than 20 seconds, and control the electricity consumption of the electrolysis of the lake water at 0.009-0.1 degree / m 3 , The cleaning frequency of the electrolysis device is once every 3 days. The effects before and after treatment are shown in Table 1 and Table 2.

[0064] Table 1 Index of untreated lake water

[0065]

[0066] Table 2 Lake water indicators after treatment by the new nano-catalytic electrolysis device

[0067]

Embodiment 2

[0069] The treatment effect on the purification and disinfection of seawater

[0070] Pump seawater into a new nano-catalytic electrolysis device for electrolysis, the voltage between the two electrodes is 3-5V, and the current density is 10-50mA / cm 2 , keep the residence time of seawater in the electrolytic cell not less than 30 seconds to 1 minute, and control the power consumption of seawater electrolysis to 0.001-0.004 degrees / m 3 , The cleaning frequency of the electrolysis device is once every 3 days. The effects before and after treatment are shown in Table 3 and Table 4.

[0071] Table 3 Index of untreated seawater

[0072] Table 4 Indexes of seawater treated by the new nanocatalytic electrolysis device

[0073]

Embodiment 3

[0075] Treatment effect on printing and dyeing advanced treatment wastewater

[0076] The printing and dyeing advanced treatment wastewater in the secondary sedimentation tank is pumped into the new nano-catalytic electrolysis device for electrolysis, the voltage between the two electrodes is 3-5V, and the current density is 50-150mA / cm 2, keep the residence time of printing and dyeing advanced treatment wastewater in the electrolytic cell for 1-5 minutes, and control the power consumption of electrolysis at 0.5-1.0 degrees / m2 3 , The cleaning frequency of the electrolytic device is once every 2 days. The effects before and after treatment are shown in Table 5 and Table 6.

[0077] Table 5 Indicators of untreated printing and dyeing advanced treatment wastewater

[0078]

[0079] Table 6 Indicators of printing and dyeing advanced treatment wastewater treated by the new nano-catalytic electrolysis device

[0080]

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Abstract

The invention provides a novel nanometer catalytic electrolysis device comprising a shell, wherein the interior of the shell is divided into a left chamber and a right chamber through an upper separating board, a lower separating board and a sealing board, wherein the left chamber is an electrolysis chamber, and the right chamber is an air floatation precipitating chamber; a water inlet is arranged on the upper edge part of the shell of the electrolysis chamber; the water inlet is connected with a wastewater inlet pipeline through a pipeline; a drain outlet is arranged at the bottom of the electrolysis chamber; the drain outlet is connected with a drain pipe; an electrolysis groove is arranged on the electrolysis chamber; the four sides of the electrolysis groove are sealed by using engineering plastic, and the upper end and the lower end of the electrolysis groove are opened; the water inlet of the electrolysis groove is arranged at the lower end of the electrolysis groove, and the water outlet of the electrolysis groove is arranged at the upper end of the electrolysis groove; the electrolysis groove is fixed on the sealing board; an electrode is mounted in the electrolysis groove; an air floatation layer is arranged between the electrode and the sealing board; the other components are connected in a sealed manner; and a water channel is formed by gaps among electrode pads atintervals. By using the novel nanometer catalytic electrolysis device provided by the invention, water treatment cost is saved, and material consumption is greatly reduced, so as to reduce secondary pollution; the sewage emission is greatly reduced, and the cost of solid waste disposal is reduced; and the biodegradability of wastewater is further improved so as to provide the better conditions for a follow-up treatment process.

Description

technical field [0001] The invention relates to an electrolysis device used in water treatment, in particular to an electrolysis device using a titanium electrode covered with a nano-catalytic material as an anode; the current load is reasonable, the distribution is orderly, and the electrical efficiency is high; the reactants on the electrode surface The concentration is kept within the effective range; the hydrogen gas generated by the cathode can be discharged in time and effectively, and a good air flotation effect is formed; a nano-catalytic electrolysis device with automatic cleaning and descaling characteristics. Background technique [0002] At present, chemical methods and biochemical methods are mostly used for sterilization and purification of water and wastewater, and a large amount of chemical agents need to be added and a large amount of sludge is generated during the treatment process. For example, in the production of tap water, chlorine or sodium hypochlorit...

Claims

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Application Information

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IPC IPC(8): C02F1/461
CPCC02F1/461C02F1/463C02F1/24C02F1/46104C02F2001/46133C02F2001/46142C02F2001/46171C02F2305/08
Inventor 张世文郑宣庆许雅玲
Owner BOYING XIAMEN SCI & TECH
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